Spare Time Gizmos' Wiki - User contributions [en]

List of Errata and Addenda

2012-10-09T14:44:40Z

Dave Ruske:

=== Elf 2000 Main Board ===

----

* '''DS1210 VBAT2 grounding issue'''

: On the Elk2K main board, chip U5, the DS1210, '''''MUST''''' have pin 7, VBAT2, tied to ground (Pin 4).

: http://groups.yahoo.com/group/sparetimegizmos/message/4258
: http://groups.yahoo.com/group/cosmacelf/message/8644

: DS1210 datasheet PDF: http://www.jameco.com/Jameco/Products/ProdDS/114198.pdf

* '''V87 Firmware - RUN Command Issue'''
:The monitor's RUN command always executes code beginning at 0000; any parameter is ignored. The code at RUNUSR checks for the Elf 2000 video board as a first step. The idea is that if the card is in use with interrupts and DMA going on, there's no way to use R0 as a program counter, so the RUN command detects this and bails if needed. Unfortunately, the test for the video card at ISCRTC trashes P1 (register F) as a side effect, and P1 is the command line pointer. The test leaves P1 pointing to VIDVER, which will be 00 if no video card is present. When the code returns back to the RUNUSR block ISEOL gets called, which now looks at the 00 at VIDVER and concludes the end of line has been reached.
:'''This has been fixed in v88 of the firmware''', http://www.sparetimegizmos.com/Downloads/v88.hex.

* '''V87 Firmware - Minor Attribution Error'''
:The monitor's TEST PIXIE function prints text attributing the displayed test pattern to "Joeseph Weisberger"; the correct spelling should be "Joseph Weisbecker."

----

=== STG1861 Board ===

----

----

=== Disk/UART/RTC/NVR Board ===

----
* There is a minor errata on the Disk/UART/RTC/NVR Board. On U7, the 16C450 UART, pin 36 /CTS is an input which is not connected to anything. As far as I can tell from the datasheet this IC does not have pullups fitted so this pin should be connected to something. On my board I have run a wire from /RTS pin 32 to /CTS pin 36.

----

=== Hexadecimal Keypad ===

----
* In the Elf 2K manual, 6th Edtion dated 10/1/2006 4:23 PM, there is an IC missing from the parts list for the Hex keypad - U5 a CD4001 (a quad 2 input NOR gate IC) needs to be added. Also U1 is a 74C922 not "74C9222" as in the parts list.
----

=== Operational Notes ===

----
* The monitor's RUN command will start program execution with interrupts disabled. Since the 1802's reset state turns on interrupts, some programs may be written to expect interrupts enabled. Such programs may be modified to turn on interrupts using the 1802's RET instruction (opcode 0x70). See the discussion thread at http://groups.yahoo.com/group/cosmacelf/message/11368

----

[[Elf_2000|Elf 2000 Main Page]]

List of Errata and Addenda

2012-10-09T14:43:35Z

Dave Ruske:

List of Errata and Addenda

2012-04-22T12:56:25Z

Dave Ruske:

=== Elf 2000 Main Board ===

----

* '''DS1210 VBAT2 grounding issue'''

: On the Elk2K main board, chip U5, the DS1210, '''''MUST''''' have pin 7, VBAT2, tied to ground (Pin 4).

: http://groups.yahoo.com/group/sparetimegizmos/message/4258
: http://groups.yahoo.com/group/cosmacelf/message/8644

: DS1210 datasheet PDF: http://www.jameco.com/Jameco/Products/ProdDS/114198.pdf

* '''V87 Firmware - RUN Command Issue'''
:The monitor's RUN command always executes code beginning at 0000; any parameter is ignored. The code at RUNUSR checks for the Elf 2000 video board as a first step. The idea is that if the card is in use with interrupts and DMA going on, there's no way to use R0 as a program counter, so the RUN command detects this and bails if needed. Unfortunately, the test for the video card at ISCRTC trashes P1 (register F) as a side effect, and P1 is the command line pointer. The test leaves P1 pointing to VIDVER, which will be 00 if no video card is present. When the code returns back to the RUNUSR block ISEOL gets called, which now looks at the 00 at VIDVER and concludes the end of line has been reached.

* '''V87 Firmware - Minor Attribution Error'''
:The monitor's TEST PIXIE function prints text attributing the displayed test pattern to "Joeseph Weisberger"; the correct spelling should be "Joseph Weisbecker."

----

=== STG1861 Board ===

----

----

=== Disk/UART/RTC/NVR Board ===

----
* There is a minor errata on the Disk/UART/RTC/NVR Board. On U7, the 16C450 UART, pin 36 /CTS is an input which is not connected to anything. As far as I can tell from the datasheet this IC does not have pullups fitted so this pin should be connected to something. On my board I have run a wire from /RTS pin 32 to /CTS pin 36.

----

=== Hexadecimal Keypad ===

----
* In the Elf 2K manual, 6th Edtion dated 10/1/2006 4:23 PM, there is an IC missing from the parts list for the Hex keypad - U5 a CD4001 (a quad 2 input NOR gate IC) needs to be added. Also U1 is a 74C922 not "74C9222" as in the parts list.
----

[[Elf_2000|Elf 2000 Main Page]]

List of Errata and Addenda

2012-04-22T05:53:34Z

Dave Ruske:

=== Elf 2000 Main Board ===

----

* '''DS1210 VBAT2 grounding issue'''

: On the Elk2K main board, chip U5, the DS1210, '''''MUST''''' have pin 7, VBAT2, tied to ground (Pin 4).

: http://groups.yahoo.com/group/sparetimegizmos/message/4258
: http://groups.yahoo.com/group/cosmacelf/message/8644

: DS1210 datasheet PDF: http://www.jameco.com/Jameco/Products/ProdDS/114198.pdf

* '''V87 Firmware - RUN Command Issue'''
:The monitor's RUN command always executes code beginning at 0000; any parameter is ignored. The code at RUNUSR checks for the Elf 2000 video board as a first step. The idea is that if the card is in use with interrupts and DMA going on, there's no way to use R0 as a program counter, so the RUN command detects this and bails if needed. Unfortunately, the test for the video card at ISCRTC trashes R1 as a side effect, and R1 is the command line pointer. The test leaves R1 pointing to VIDVER, which will be 00 if no video card is present. When the code returns back to the RUNUSR block ISEOL gets called, which now looks at the 00 at VIDVER and concludes the end of line has been reached.

* '''V87 Firmware - Minor Attribution Error'''
:The monitor's TEST PIXIE function prints text attributing the displayed test pattern to "Joeseph Weisberger"; the correct spelling should be "Joseph Weisbecker."

----

=== STG1861 Board ===

----

----

=== Disk/UART/RTC/NVR Board ===

----
* There is a minor errata on the Disk/UART/RTC/NVR Board. On U7, the 16C450 UART, pin 36 /CTS is an input which is not connected to anything. As far as I can tell from the datasheet this IC does not have pullups fitted so this pin should be connected to something. On my board I have run a wire from /RTS pin 32 to /CTS pin 36.

----

=== Hexadecimal Keypad ===

----
* In the Elf 2K manual, 6th Edtion dated 10/1/2006 4:23 PM, there is an IC missing from the parts list for the Hex keypad - U5 a CD4001 (a quad 2 input NOR gate IC) needs to be added. Also U1 is a 74C922 not "74C9222" as in the parts list.
----

[[Elf_2000|Elf 2000 Main Page]]

Elf 2000 Main Board Parts List

2012-03-21T20:43:20Z

Dave Ruske: Added solder-in swage standoffs

{| class="wikitable sortable" style="font-size: 100%; text-align: left; width: auto;"
[http://www.sparetimegizmos.com/Hardware/Elf2K.htm '''Elf 2000''']

|+ style="font-size: 125%;" | Elf 2000 Main Board Parts List
|-
! scope="col" style="font-size: 100%; text-align:left;" class="sortable" | Ref/Desig
! scope="col" style="font-size: 100%; text-align:left;" class="unsortable" | Manuf.
! scope="col" style="font-size: 100%; text-align:right;" class="unsortable" | P/N
! scope="col" style="font-size: 100%; text-align:center;" class="sortable" | Vendor
! scope="col" style="font-size: 100%; text-align:left;" class="unsortable" | Stock #
! scope="col" style="font-size: 100%; text-align:left;" class="unsortable" | Description
|-

! colspan="6" style="text-align: left;" |       RESISTORS
|-

! scope="row" style="text-align: left;" | R1, R5, R6, R7, R8
| || || common || || 330 ohm 1/8W 5% carbon resistor
|-
! scope="row" style="text-align: left;" | R2
| || || common || || 1K ohm 1/8W 5% carbon resistor
|-
! scope="row" style="text-align: left;" | R3
| || || common || || 200 ohm 1/8W 5% carbon resistor
|-
! scope="row" style="text-align: left;" | R4
| || || common || || 3.3K ohm 1/8W 5% carbon resistor
|-
! scope="row" style="text-align: left;" | RP1, RP3
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_772238_-1 772238] || 10K x 9 10 pin SIP
|-
! scope="row" style="text-align: left;" | RP2
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_1970359_-1 1970359] || 10K x 7 8 pin SIP
|-
! scope="row" style="text-align: left;" | RP4
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_771681_-1 771681] || 10K x 5 6 pin SIP
|-

! colspan="6" style="text-align: left;" |       CAPACITORS
|-

! scope="row" style="text-align: left;" | C1
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_30017_-1 30017] || 1000uF 16V radial lead aluminum electrolytic capacitor
|-
! scope="row" style="text-align: left;" | C2
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_33689_-1 33689] || 10uF 6V tantalum capacitor
|-
! scope="row" style="text-align: left;" | C3
| - || - || - || - || unused
|-
! scope="row" style="text-align: left;" | C4-C24
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_332672_-1 332672] || 0.1uF ceramic monolithic bypass capacitor (0.1" LS)
|-

! colspan="6" style="text-align: left;" |       SEMICONDUCTORS
|-

! scope="row" style="text-align: left;" | D2, D3, D4, D6
| || 1N914 || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_36311_-1 36311] || Small signal switching diode
|-
! scope="row" style="text-align: left;" | D5
| || 1N4001 || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_35975_-1 35975] || 50PIV 1A power diode
|-
! scope="row" style="text-align: left;" | D1
| || || || || unused
|-
! scope="row" style="text-align: left;" | VR1
| || 7805 || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_51262_-1 51262] || 5.0V fixed output TO-220 regulator
|-
! scope="row" style="text-align: left; background-color: #99ccff;" | U1
| Intersil || CDP1802ACD3 || || ! ! ! || 8 bit microprocessor
|-
! scope="row" style="text-align: left; background-color: #99ccff;" | U2
| RCA || CDP1861D || || ! ! ! || video co-processor (hard-to-find item – see [[STG1861 Parts List]])
|-
! scope="row" style="text-align: left; background-color: #ff3366;" | U3
| STG || 27C256 || STG || ! ! ! || 32K 8 bit EPROM
|-
! scope="row" style="text-align: left;" | U4
| Hitachi Cypress || HM62256LP CY62256LL-70PC || JameCo || [https://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_42850_-1 42850] [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_391822_-1 391822] || 32K 8 bit low power SRAM 150ns (or faster)
|-
! scope="row" style="text-align: left;" | U5
| Dallas || DS1210 || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_114198_-1 114198] || Nonvolatile SRAM controller
|-
! scope="row" style="text-align: left;" | U6
| || 74HC373 || JDR || [http://www.jdr.com/product_p/74hc373.htm 74HC373] || Octal D Latches
|-
! scope="row" style="text-align: left; background-color: #ff3366;" | U7
| Atmel || ATF22V10CQZ || STG || ! ! ! || Flash GAL (quarter power)
|-
! scope="row" style="text-align: left;" | U8
| || 74HC04 || JDR || [http://www.jdr.com/product_p/74hc04.htm 74HC04] || Hex inverter
|-
! scope="row" style="text-align: left;" | U9
| || CD4044 || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_13004_-1 13004] || Quad S-R Latches
|-
! scope="row" style="text-align: left;" | U10
| || 74HC74 || JDR || [http://www.jdr.com/product_p/74hc74.htm 74HC74] || Dual D Flip Flop
|-
! scope="row" style="text-align: left;" | U11
| - || - || - || - || unused
|-
! scope="row" style="text-align: left;" | U12, U13, U14
| || 74HC244 || JDR || [http://www.jdr.com/product_p/74hc244.htm 74HC244] || Dual Quad Buffer
|-
! scope="row" style="text-align: left;" | U15
| Dallas || DS1233 || Digi-Key || [http://search.digikey.com/us/en/products/DS1233-10%2B/DS1233-10%2B-ND/956848 DS1233-10+-ND] || 5V 10% TO-92 EconoReset (Don’t use the DS1233M!)
|-
! scope="row" style="text-align: left; background-color: #eeee00;" | U16
| Dallas || DS275 || ? || (see links) || RS-232 transceiver (2011 — hard-to-find part – see/search: [http://www.futurlec.com] or [http://www.componentsdirect.com/maxim-ds275-lead-free-rohs.html])
|-
! scope="row" style="text-align: left; background-color: #eeee00;" | DISP1-6
| || TIL311 || ? || (see links) || LED Hexadecimal Display (2011 — hard-to-find part – see/search: [http://www.utsource.net/TIL311.html])
|-
! scope="row" style="text-align: left;" | LED1-5
| || || JDR || [http://www.jdr.com/product_p/led101.htm LED101] || Red T1 LEDs
|-
! scope="row" style="text-align: left;" | OSC1
| ECS || 2100A-035 || Mouser || [http://www.mouser.com/ProductDetail/ECS/ECS-2100AX-3579545MHZ/?qs=sGAEpiMZZMt8zWNA7msRCuDqIMr8Xozz7vWkCgq%252b6Tc%3d 520-TCH357-X] || 3.579545Mhz DIP8 crystal oscillator
|-

! colspan="6" style="text-align: left;" |       MISCELLANEOUS
|-

! scope="row" style="text-align: left;" | B1
| || CR1225 || Mouser || [http://www.mouser.com/ProductDetail/Renata/CR1225CU/?qs=sGAEpiMZZMv5F0%2f93%252bxJZUXiIpeVEkp1MWybR0ulaG4%3d 614-CR1225] || Lithium coin cell
|-
! scope="row" style="text-align: left;" |
| || BH1225 || Digi-Key || [http://search.digikey.com/us/en/products/500/500K-ND/151580 500K-ND] || CR1225 coin cell holder
|-
! scope="row" style="text-align: left;" | PB1
| Panasonic || EVQ-PAD05R || Digi-Key || [http://search.digikey.com/us/en/products/EVQ-PAD05R/P10890S-ND/284831 P10890S-ND] || PCB mount push button switch
|-
! scope="row" style="text-align: left;" | S1
| C&K || T101MH9ABE || Digi-key || [http://search.digikey.com/us/en/products/T101MH9ABE/CKN1067-ND/67020 CKN1067-ND] || SPDT Tiny Toggle Switch, PCB Mount Right Angle
|-
! scope="row" style="text-align: left;" | J1
| || PJRAN1X1U04X || Mouser || [http://www.mouser.com/ProductDetail/Switchcraft/PJRAN1X1U04X/?qs=mcPJWgAPNreq%252bR%252bwE959rg%3d%3d 502-PJRAN1X1U04X] || PCB mount phono jack (Video)
|-
! scope="row" style="text-align: left;" | J2
| Cui-Stack || PJ-102AH || Digi-Key || [http://search.digikey.com/us/en/products/PJ-102AH/CP-102AH-ND/408448 CP-102AH-ND] || high current coaxial power jack (2.1 x 5.5mm)
|-
! scope="row" style="text-align: left;" | J3
| CommConn or Samtec || 1184-24G2 or ESQ-112-14-G-D || Samtec || [https://www.samtec.com/SuddenService/OnlineOrder/OnlineOrder.aspx ESQ-112-14-G-D] || 24 pin dual row stacking header
|-
! scope="row" style="text-align: left;" | J4
| || || ? || || PCB mount DB9F
|-
! scope="row" style="text-align: left;" | J5
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_53480_-1 53480] || 20 pin 0.1" dual row header
|-
! scope="row" style="text-align: left;" | (for U5, U16)
| || || JDR || [http://www.jdr.com/product_p/mpsoc-08.htm MPSOC-08] || DIP8 machined pin IC socket
|-
! scope="row" style="text-align: left;" | (for OSC1)
| || || Digi-Key JameCo || [http://search.digikey.com/us/en/products/1108800/A463-ND/261895 A463-ND] [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_676385_-1 676385] || DIP8 machined pin oscillator socket
|-
! scope="row" style="text-align: left;" | (for U8, U10, DISP1-6)
| || || JDR || [http://www.jdr.com/product_p/mpsoc-14.htm MPSOC-14] || DIP14 machined pin IC socket
|-
! scope="row" style="text-align: left;" | (for U9)
| || || JDR || [http://www.jdr.com/product_p/mpsoc-16.htm MPSOC-16] || DIP16 machined pin IC socket
|-
! scope="row" style="text-align: left;" | (for U6, U12, U13, U14)
| || || JDR || [http://www.jdr.com/product_p/mpsoc-20.htm MPSOC-20] || DIP20 machined pin IC socket (0.300")
|-
! scope="row" style="text-align: left;" | (for U7)
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_39386_-1 39386] || DIP24 machined pin IC socket (0.300")
|-
! scope="row" style="text-align: left;" | (for U2)
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_39351_-1 39351] || DIP24 machined pin IC socket (0.600")
|-
! scope="row" style="text-align: left;" | (for U3, U4)
| || || JDR || [http://www.jdr.com/product_p/mpsoc-28.htm MPSOC-28] || DIP28 machined pin IC socket (0.600")
|-
! scope="row" style="text-align: left;" | (for U1)
| || || JDR || [http://www.jdr.com/product_p/mpsoc-40.htm MPSOC-40] || DIP40 machined pin IC socket
|-
! scope="row" style="text-align: left;" |
| || || ? || || #4-40 mounting hardware for VR1
|-
! scope="row" style="text-align: left;" |
| || || JDR || [http://www.jdr.com/product_p/hs507302b.htm HS507302B] || Heat sink for VR1
|-
! scope="row" style="text-align: left; background-color: #ff3366;" |
| STG || ELF2K-1C || STG || ! ! ! || Printed circuit board
|-
! scope="row" style="text-align: left;" |
| || || Mouser || [http://www.mouser.com/Search/ProductDetail.aspx?R=1560Avirtualkey53400000virtualkey534-1560A 534-1560A] || Solder-in swage stand-offs
|-

|}

NOTE: The following items are hard-to-find parts as of 2011.
 
Check the sources given.
 
    • U16 – Dallas – DS275 – RS-232 transceiver – [http://www.futurlec.com www.futurlec.com] or [http://www.componentsdirect.com/maxim-ds275-lead-free-rohs.html www.componentsdirect.com]
 
    • DISP1-6 – TIL311 – LED Hexadecimal Display – [http://www.utsource.net/TIL311.html www.utsource.net]
 
      (also note that the hexadecimal displays are optional – you may use none, or only two for data)
 

 

[[Elf_2000#Parts Lists and Suppliers|Elf 2000 Parts Lists and Suppliers]]

Elf 2000 Main Board Parts List

2012-03-07T05:41:52Z

Dave Ruske: Added text like "(for U3, U4)" to the IC sockets to give an indication of the quantity needed

{| class="wikitable sortable" style="font-size: 100%; text-align: left; width: auto;"
[http://www.sparetimegizmos.com/Hardware/Elf2K.htm '''Elf 2000''']

|+ style="font-size: 125%;" | Elf 2000 Main Board Parts List
|-
! scope="col" style="font-size: 100%; text-align:left;" class="sortable" | Ref/Desig
! scope="col" style="font-size: 100%; text-align:left;" class="unsortable" | Manuf.
! scope="col" style="font-size: 100%; text-align:right;" class="unsortable" | P/N
! scope="col" style="font-size: 100%; text-align:center;" class="sortable" | Vendor
! scope="col" style="font-size: 100%; text-align:left;" class="unsortable" | Stock #
! scope="col" style="font-size: 100%; text-align:left;" class="unsortable" | Description
|-

! colspan="6" style="text-align: left;" |       RESISTORS
|-

! scope="row" style="text-align: left;" | R1, R5, R6, R7, R8
| || || common || || 330 ohm 1/8W 5% carbon resistor
|-
! scope="row" style="text-align: left;" | R2
| || || common || || 1K ohm 1/8W 5% carbon resistor
|-
! scope="row" style="text-align: left;" | R3
| || || common || || 200 ohm 1/8W 5% carbon resistor
|-
! scope="row" style="text-align: left;" | R4
| || || common || || 3.3K ohm 1/8W 5% carbon resistor
|-
! scope="row" style="text-align: left;" | RP1, RP3
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_772238_-1 772238] || 10K x 9 10 pin SIP
|-
! scope="row" style="text-align: left;" | RP2
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_1970359_-1 1970359] || 10K x 7 8 pin SIP
|-
! scope="row" style="text-align: left;" | RP4
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_771681_-1 771681] || 10K x 5 6 pin SIP
|-

! colspan="6" style="text-align: left;" |       CAPACITORS
|-

! scope="row" style="text-align: left;" | C1
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_30017_-1 30017] || 1000uF 16V radial lead aluminum electrolytic capacitor
|-
! scope="row" style="text-align: left;" | C2
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_33689_-1 33689] || 10uF 6V tantalum capacitor
|-
! scope="row" style="text-align: left;" | C3
| - || - || - || - || unused
|-
! scope="row" style="text-align: left;" | C4-C24
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_332672_-1 332672] || 0.1uF ceramic monolithic bypass capacitor (0.1" LS)
|-

! colspan="6" style="text-align: left;" |       SEMICONDUCTORS
|-

! scope="row" style="text-align: left;" | D2, D3, D4, D6
| || 1N914 || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_36311_-1 36311] || Small signal switching diode
|-
! scope="row" style="text-align: left;" | D5
| || 1N4001 || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_35975_-1 35975] || 50PIV 1A power diode
|-
! scope="row" style="text-align: left;" | D1
| || || || || unused
|-
! scope="row" style="text-align: left;" | VR1
| || 7805 || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_51262_-1 51262] || 5.0V fixed output TO-220 regulator
|-
! scope="row" style="text-align: left; background-color: #99ccff;" | U1
| Intersil || CDP1802ACD3 || || ! ! ! || 8 bit microprocessor
|-
! scope="row" style="text-align: left; background-color: #99ccff;" | U2
| RCA || CDP1861D || || ! ! ! || video co-processor (hard-to-find item – see [[STG1861 Parts List]])
|-
! scope="row" style="text-align: left; background-color: #ff3366;" | U3
| STG || 27C256 || STG || ! ! ! || 32K 8 bit EPROM
|-
! scope="row" style="text-align: left;" | U4
| Hitachi || HM62256LP || JameCo || [https://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_42850_-1 42850] || 32K 8 bit low power SRAM 150ns
|-
! scope="row" style="text-align: left;" | U5
| Dallas || DS1210 || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_114198_-1 114198] || Nonvolatile SRAM controller
|-
! scope="row" style="text-align: left;" | U6
| || 74HC373 || JDR || [http://www.jdr.com/product_p/74hc373.htm 74HC373] || Octal D Latches
|-
! scope="row" style="text-align: left; background-color: #ff3366;" | U7
| Atmel || ATF22V10CQZ || STG || ! ! ! || Flash GAL (quarter power)
|-
! scope="row" style="text-align: left;" | U8
| || 74HC04 || JDR || [http://www.jdr.com/product_p/74hc04.htm 74HC04] || Hex inverter
|-
! scope="row" style="text-align: left;" | U9
| || CD4044 || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_13004_-1 13004] || Quad S-R Latches
|-
! scope="row" style="text-align: left;" | U10
| || 74HC74 || JDR || [http://www.jdr.com/product_p/74hc74.htm 74HC74] || Dual D Flip Flop
|-
! scope="row" style="text-align: left;" | U11
| - || - || - || - || unused
|-
! scope="row" style="text-align: left;" | U12, U13, U14
| || 74HC244 || JDR || [http://www.jdr.com/product_p/74hc244.htm 74HC244] || Dual Quad Buffer
|-
! scope="row" style="text-align: left;" | U15
| Dallas || DS1233 || Digi-Key || [http://search.digikey.com/us/en/products/DS1233-10%2B/DS1233-10%2B-ND/956848 DS1233-10+-ND] || 5V 10% TO-92 EconoReset (Don’t use the DS1233M!)
|-
! scope="row" style="text-align: left; background-color: #eeee00;" | U16
| Dallas || DS275 || ? || (see links) || RS-232 transceiver (2011 — hard-to-find part – see/search: [http://www.futurlec.com] or [http://www.componentsdirect.com/maxim-ds275-lead-free-rohs.html])
|-
! scope="row" style="text-align: left; background-color: #eeee00;" | DISP1-6
| || TIL311 || ? || (see links) || LED Hexadecimal Display (2011 — hard-to-find part – see/search: [http://www.utsource.net/TIL311.html])
|-
! scope="row" style="text-align: left;" | LED1-5
| || || JDR || [http://www.jdr.com/product_p/led101.htm LED101] || Red T1 LEDs
|-
! scope="row" style="text-align: left;" | OSC1
| ECS || 2100A-035 || Mouser || [http://www.mouser.com/ProductDetail/ECS/ECS-2100AX-3579545MHZ/?qs=sGAEpiMZZMt8zWNA7msRCuDqIMr8Xozz7vWkCgq%252b6Tc%3d 520-TCH357-X] || 3.579545Mhz DIP8 crystal oscillator
|-

! colspan="6" style="text-align: left;" |       MISCELLANEOUS
|-

! scope="row" style="text-align: left;" | B1
| || CR1225 || Mouser || [http://www.mouser.com/ProductDetail/Renata/CR1225CU/?qs=sGAEpiMZZMv5F0%2f93%252bxJZUXiIpeVEkp1MWybR0ulaG4%3d 614-CR1225] || Lithium coin cell
|-
! scope="row" style="text-align: left;" |
| || BH1225 || Digi-Key || [http://search.digikey.com/us/en/products/500/500K-ND/151580 500K-ND] || CR1225 coin cell holder
|-
! scope="row" style="text-align: left;" | PB1
| Panasonic || EVQ-PAD05R || Digi-Key || [http://search.digikey.com/us/en/products/EVQ-PAD05R/P10890S-ND/284831 P10890S-ND] || PCB mount push button switch
|-
! scope="row" style="text-align: left;" | S1
| C&K || T101MH9ABE || Digi-key || [http://search.digikey.com/us/en/products/T101MH9ABE/CKN1067-ND/67020 CKN1067-ND] || SPDT Tiny Toggle Switch, PCB Mount Right Angle
|-
! scope="row" style="text-align: left;" | J1
| || PJRAN1X1U04X || Mouser || [http://www.mouser.com/ProductDetail/Switchcraft/PJRAN1X1U04X/?qs=mcPJWgAPNreq%252bR%252bwE959rg%3d%3d 502-PJRAN1X1U04X] || PCB mount phono jack (Video)
|-
! scope="row" style="text-align: left;" | J2
| Cui-Stack || PJ-102AH || Digi-Key || [http://search.digikey.com/us/en/products/PJ-102AH/CP-102AH-ND/408448 CP-102AH-ND] || high current coaxial power jack (2.1 x 5.5mm)
|-
! scope="row" style="text-align: left;" | J3
| CommConn or Samtec || 1184-24G2 or ESQ-112-14-G-D || Samtec || [https://www.samtec.com/SuddenService/OnlineOrder/OnlineOrder.aspx ESQ-112-14-G-D] || 24 pin dual row stacking header
|-
! scope="row" style="text-align: left;" | J4
| || || ? || || PCB mount DB9F
|-
! scope="row" style="text-align: left;" | J5
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_53480_-1 53480] || 20 pin 0.1" dual row header
|-
! scope="row" style="text-align: left;" | (for U5, U16)
| || || JDR || [http://www.jdr.com/product_p/mpsoc-08.htm MPSOC-08] || DIP8 machined pin IC socket
|-
! scope="row" style="text-align: left;" |
| || || Digi-Key || [http://search.digikey.com/us/en/products/1108800/A463-ND/261895 A463-ND] || DIP8 machined pin oscillator socket
|-
! scope="row" style="text-align: left;" | (for U8, U10, DISP1-6)
| || || JDR || [http://www.jdr.com/product_p/mpsoc-14.htm MPSOC-14] || DIP14 machined pin IC socket
|-
! scope="row" style="text-align: left;" | (for U9)
| || || JDR || [http://www.jdr.com/product_p/mpsoc-16.htm MPSOC-16] || DIP16 machined pin IC socket
|-
! scope="row" style="text-align: left;" | (for U6, U12, U13, U14)
| || || JDR || [http://www.jdr.com/product_p/mpsoc-20.htm MPSOC-20] || DIP20 machined pin IC socket (0.300")
|-
! scope="row" style="text-align: left;" | (for U7)
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_39386_-1 39386] || DIP24 machined pin IC socket (0.300")
|-
! scope="row" style="text-align: left;" | (for U2)
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_39351_-1 39351] || DIP24 machined pin IC socket (0.600")
|-
! scope="row" style="text-align: left;" | (for U3, U4)
| || || JDR || [http://www.jdr.com/product_p/mpsoc-28.htm MPSOC-28] || DIP28 machined pin IC socket (0.600")
|-
! scope="row" style="text-align: left;" | (for U1)
| || || JDR || [http://www.jdr.com/product_p/mpsoc-40.htm MPSOC-40] || DIP40 machined pin IC socket
|-
! scope="row" style="text-align: left;" |
| || || ? || || #4-40 mounting hardware for VR1
|-
! scope="row" style="text-align: left;" |
| || || JDR || [http://www.jdr.com/product_p/hs507302b.htm HS507302B] || Heat sink for VR1
|-
! scope="row" style="text-align: left; background-color: #ff3366;" |
| STG || ELF2K-1C || STG || ! ! ! || Printed circuit board
|-

|}

NOTE: The following items are hard-to-find parts as of 2011.
 
Check the sources given.
 
    • U16 – Dallas – DS275 – RS-232 transceiver – [http://www.futurlec.com www.futurlec.com] or [http://www.componentsdirect.com/maxim-ds275-lead-free-rohs.html www.componentsdirect.com]
 
    • DISP1-6 – TIL311 – LED Hexadecimal Display – [http://www.utsource.net/TIL311.html www.utsource.net]
 
      (also note that the hexadecimal displays are optional – you may use none, or only two for data)
 

 

[[Elf_2000#Parts Lists and Suppliers|Elf 2000 Parts Lists and Suppliers]]

Elf 2000 Main Board Parts List

2012-03-07T05:33:05Z

Dave Ruske: Added Samtec info for stacking header

{| class="wikitable sortable" style="font-size: 100%; text-align: left; width: auto;"
[http://www.sparetimegizmos.com/Hardware/Elf2K.htm '''Elf 2000''']

|+ style="font-size: 125%;" | Elf 2000 Main Board Parts List
|-
! scope="col" style="font-size: 100%; text-align:left;" class="sortable" | Ref/Desig
! scope="col" style="font-size: 100%; text-align:left;" class="unsortable" | Manuf.
! scope="col" style="font-size: 100%; text-align:right;" class="unsortable" | P/N
! scope="col" style="font-size: 100%; text-align:center;" class="sortable" | Vendor
! scope="col" style="font-size: 100%; text-align:left;" class="unsortable" | Stock #
! scope="col" style="font-size: 100%; text-align:left;" class="unsortable" | Description
|-

! colspan="6" style="text-align: left;" |       RESISTORS
|-

! scope="row" style="text-align: left;" | R1, R5, R6, R7, R8
| || || common || || 330 ohm 1/8W 5% carbon resistor
|-
! scope="row" style="text-align: left;" | R2
| || || common || || 1K ohm 1/8W 5% carbon resistor
|-
! scope="row" style="text-align: left;" | R3
| || || common || || 200 ohm 1/8W 5% carbon resistor
|-
! scope="row" style="text-align: left;" | R4
| || || common || || 3.3K ohm 1/8W 5% carbon resistor
|-
! scope="row" style="text-align: left;" | RP1, RP3
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_772238_-1 772238] || 10K x 9 10 pin SIP
|-
! scope="row" style="text-align: left;" | RP2
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_1970359_-1 1970359] || 10K x 7 8 pin SIP
|-
! scope="row" style="text-align: left;" | RP4
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_771681_-1 771681] || 10K x 5 6 pin SIP
|-

! colspan="6" style="text-align: left;" |       CAPACITORS
|-

! scope="row" style="text-align: left;" | C1
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_30017_-1 30017] || 1000uF 16V radial lead aluminum electrolytic capacitor
|-
! scope="row" style="text-align: left;" | C2
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_33689_-1 33689] || 10uF 6V tantalum capacitor
|-
! scope="row" style="text-align: left;" | C3
| - || - || - || - || unused
|-
! scope="row" style="text-align: left;" | C4-C24
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_332672_-1 332672] || 0.1uF ceramic monolithic bypass capacitor (0.1" LS)
|-

! colspan="6" style="text-align: left;" |       SEMICONDUCTORS
|-

! scope="row" style="text-align: left;" | D2, D3, D4, D6
| || 1N914 || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_36311_-1 36311] || Small signal switching diode
|-
! scope="row" style="text-align: left;" | D5
| || 1N4001 || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_35975_-1 35975] || 50PIV 1A power diode
|-
! scope="row" style="text-align: left;" | D1
| || || || || unused
|-
! scope="row" style="text-align: left;" | VR1
| || 7805 || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_51262_-1 51262] || 5.0V fixed output TO-220 regulator
|-
! scope="row" style="text-align: left; background-color: #99ccff;" | U1
| Intersil || CDP1802ACD3 || || ! ! ! || 8 bit microprocessor
|-
! scope="row" style="text-align: left; background-color: #99ccff;" | U2
| RCA || CDP1861D || || ! ! ! || video co-processor (hard-to-find item – see [[STG1861 Parts List]])
|-
! scope="row" style="text-align: left; background-color: #ff3366;" | U3
| STG || 27C256 || STG || ! ! ! || 32K 8 bit EPROM
|-
! scope="row" style="text-align: left;" | U4
| Hitachi || HM62256LP || JameCo || [https://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_42850_-1 42850] || 32K 8 bit low power SRAM 150ns
|-
! scope="row" style="text-align: left;" | U5
| Dallas || DS1210 || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_114198_-1 114198] || Nonvolatile SRAM controller
|-
! scope="row" style="text-align: left;" | U6
| || 74HC373 || JDR || [http://www.jdr.com/product_p/74hc373.htm 74HC373] || Octal D Latches
|-
! scope="row" style="text-align: left; background-color: #ff3366;" | U7
| Atmel || ATF22V10CQZ || STG || ! ! ! || Flash GAL (quarter power)
|-
! scope="row" style="text-align: left;" | U8
| || 74HC04 || JDR || [http://www.jdr.com/product_p/74hc04.htm 74HC04] || Hex inverter
|-
! scope="row" style="text-align: left;" | U9
| || CD4044 || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_13004_-1 13004] || Quad S-R Latches
|-
! scope="row" style="text-align: left;" | U10
| || 74HC74 || JDR || [http://www.jdr.com/product_p/74hc74.htm 74HC74] || Dual D Flip Flop
|-
! scope="row" style="text-align: left;" | U11
| - || - || - || - || unused
|-
! scope="row" style="text-align: left;" | U12, U13, U14
| || 74HC244 || JDR || [http://www.jdr.com/product_p/74hc244.htm 74HC244] || Dual Quad Buffer
|-
! scope="row" style="text-align: left;" | U15
| Dallas || DS1233 || Digi-Key || [http://search.digikey.com/us/en/products/DS1233-10%2B/DS1233-10%2B-ND/956848 DS1233-10+-ND] || 5V 10% TO-92 EconoReset (Don’t use the DS1233M!)
|-
! scope="row" style="text-align: left; background-color: #eeee00;" | U16
| Dallas || DS275 || ? || (see links) || RS-232 transceiver (2011 — hard-to-find part – see/search: [http://www.futurlec.com] or [http://www.componentsdirect.com/maxim-ds275-lead-free-rohs.html])
|-
! scope="row" style="text-align: left; background-color: #eeee00;" | DISP1-6
| || TIL311 || ? || (see links) || LED Hexadecimal Display (2011 — hard-to-find part – see/search: [http://www.utsource.net/TIL311.html])
|-
! scope="row" style="text-align: left;" | LED1-5
| || || JDR || [http://www.jdr.com/product_p/led101.htm LED101] || Red T1 LEDs
|-
! scope="row" style="text-align: left;" | OSC1
| ECS || 2100A-035 || Mouser || [http://www.mouser.com/ProductDetail/ECS/ECS-2100AX-3579545MHZ/?qs=sGAEpiMZZMt8zWNA7msRCuDqIMr8Xozz7vWkCgq%252b6Tc%3d 520-TCH357-X] || 3.579545Mhz DIP8 crystal oscillator
|-

! colspan="6" style="text-align: left;" |       MISCELLANEOUS
|-

! scope="row" style="text-align: left;" | B1
| || CR1225 || Mouser || [http://www.mouser.com/ProductDetail/Renata/CR1225CU/?qs=sGAEpiMZZMv5F0%2f93%252bxJZUXiIpeVEkp1MWybR0ulaG4%3d 614-CR1225] || Lithium coin cell
|-
! scope="row" style="text-align: left;" |
| || BH1225 || Digi-Key || [http://search.digikey.com/us/en/products/500/500K-ND/151580 500K-ND] || CR1225 coin cell holder
|-
! scope="row" style="text-align: left;" | PB1
| Panasonic || EVQ-PAD05R || Digi-Key || [http://search.digikey.com/us/en/products/EVQ-PAD05R/P10890S-ND/284831 P10890S-ND] || PCB mount push button switch
|-
! scope="row" style="text-align: left;" | S1
| C&K || T101MH9ABE || Digi-key || [http://search.digikey.com/us/en/products/T101MH9ABE/CKN1067-ND/67020 CKN1067-ND] || SPDT Tiny Toggle Switch, PCB Mount Right Angle
|-
! scope="row" style="text-align: left;" | J1
| || PJRAN1X1U04X || Mouser || [http://www.mouser.com/ProductDetail/Switchcraft/PJRAN1X1U04X/?qs=mcPJWgAPNreq%252bR%252bwE959rg%3d%3d 502-PJRAN1X1U04X] || PCB mount phono jack (Video)
|-
! scope="row" style="text-align: left;" | J2
| Cui-Stack || PJ-102AH || Digi-Key || [http://search.digikey.com/us/en/products/PJ-102AH/CP-102AH-ND/408448 CP-102AH-ND] || high current coaxial power jack (2.1 x 5.5mm)
|-
! scope="row" style="text-align: left;" | J3
| CommConn or Samtec || 1184-24G2 or ESQ-112-14-G-D || Samtec || [https://www.samtec.com/SuddenService/OnlineOrder/OnlineOrder.aspx ESQ-112-14-G-D] || 24 pin dual row stacking header
|-
! scope="row" style="text-align: left;" | J4
| || || ? || || PCB mount DB9F
|-
! scope="row" style="text-align: left;" | J5
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_53480_-1 53480] || 20 pin 0.1" dual row header
|-
! scope="row" style="text-align: left;" |
| || || JDR || [http://www.jdr.com/product_p/mpsoc-08.htm MPSOC-08] || DIP8 machined pin IC socket
|-
! scope="row" style="text-align: left;" |
| || || Digi-Key || [http://search.digikey.com/us/en/products/1108800/A463-ND/261895 A463-ND] || DIP8 machined pin oscillator socket
|-
! scope="row" style="text-align: left;" |
| || || JDR || [http://www.jdr.com/product_p/mpsoc-14.htm MPSOC-14] || DIP14 machined pin IC socket
|-
! scope="row" style="text-align: left;" |
| || || JDR || [http://www.jdr.com/product_p/mpsoc-16.htm MPSOC-16] || DIP16 machined pin IC socket
|-
! scope="row" style="text-align: left;" |
| || || JDR || [http://www.jdr.com/product_p/mpsoc-20.htm MPSOC-20] || DIP20 machined pin IC socket (0.300")
|-
! scope="row" style="text-align: left;" |
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_39386_-1 39386] || DIP24 machined pin IC socket (0.300")
|-
! scope="row" style="text-align: left;" |
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_39351_-1 39351] || DIP24 machined pin IC socket (0.600")
|-
! scope="row" style="text-align: left;" |
| || || JDR || [http://www.jdr.com/product_p/mpsoc-28.htm MPSOC-28] || DIP28 machined pin IC socket (0.600")
|-
! scope="row" style="text-align: left;" |
| || || JDR || [http://www.jdr.com/product_p/mpsoc-40.htm MPSOC-40] || DIP40 machined pin IC socket
|-
! scope="row" style="text-align: left;" |
| || || ? || || #4-40 mounting hardware for VR1
|-
! scope="row" style="text-align: left;" |
| || || JDR || [http://www.jdr.com/product_p/hs507302b.htm HS507302B] || Heat sink for VR1
|-
! scope="row" style="text-align: left; background-color: #ff3366;" |
| STG || ELF2K-1C || STG || ! ! ! || Printed circuit board
|-

|}

NOTE: The following items are hard-to-find parts as of 2011.
 
Check the sources given.
 
    • U16 – Dallas – DS275 – RS-232 transceiver – [http://www.futurlec.com www.futurlec.com] or [http://www.componentsdirect.com/maxim-ds275-lead-free-rohs.html www.componentsdirect.com]
 
    • DISP1-6 – TIL311 – LED Hexadecimal Display – [http://www.utsource.net/TIL311.html www.utsource.net]
 
      (also note that the hexadecimal displays are optional – you may use none, or only two for data)
 

 

[[Elf_2000#Parts Lists and Suppliers|Elf 2000 Parts Lists and Suppliers]]

Elf 2000 Main Board Parts List

2012-03-07T05:25:02Z

Dave Ruske: Updated Jameco link for the 62256LP SRAM; prior link was for a 6264LP SRAM.

{| class="wikitable sortable" style="font-size: 100%; text-align: left; width: auto;"
[http://www.sparetimegizmos.com/Hardware/Elf2K.htm '''Elf 2000''']

|+ style="font-size: 125%;" | Elf 2000 Main Board Parts List
|-
! scope="col" style="font-size: 100%; text-align:left;" class="sortable" | Ref/Desig
! scope="col" style="font-size: 100%; text-align:left;" class="unsortable" | Manuf.
! scope="col" style="font-size: 100%; text-align:right;" class="unsortable" | P/N
! scope="col" style="font-size: 100%; text-align:center;" class="sortable" | Vendor
! scope="col" style="font-size: 100%; text-align:left;" class="unsortable" | Stock #
! scope="col" style="font-size: 100%; text-align:left;" class="unsortable" | Description
|-

! colspan="6" style="text-align: left;" |       RESISTORS
|-

! scope="row" style="text-align: left;" | R1, R5, R6, R7, R8
| || || common || || 330 ohm 1/8W 5% carbon resistor
|-
! scope="row" style="text-align: left;" | R2
| || || common || || 1K ohm 1/8W 5% carbon resistor
|-
! scope="row" style="text-align: left;" | R3
| || || common || || 200 ohm 1/8W 5% carbon resistor
|-
! scope="row" style="text-align: left;" | R4
| || || common || || 3.3K ohm 1/8W 5% carbon resistor
|-
! scope="row" style="text-align: left;" | RP1, RP3
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_772238_-1 772238] || 10K x 9 10 pin SIP
|-
! scope="row" style="text-align: left;" | RP2
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_1970359_-1 1970359] || 10K x 7 8 pin SIP
|-
! scope="row" style="text-align: left;" | RP4
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_771681_-1 771681] || 10K x 5 6 pin SIP
|-

! colspan="6" style="text-align: left;" |       CAPACITORS
|-

! scope="row" style="text-align: left;" | C1
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_30017_-1 30017] || 1000uF 16V radial lead aluminum electrolytic capacitor
|-
! scope="row" style="text-align: left;" | C2
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_33689_-1 33689] || 10uF 6V tantalum capacitor
|-
! scope="row" style="text-align: left;" | C3
| - || - || - || - || unused
|-
! scope="row" style="text-align: left;" | C4-C24
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_332672_-1 332672] || 0.1uF ceramic monolithic bypass capacitor (0.1" LS)
|-

! colspan="6" style="text-align: left;" |       SEMICONDUCTORS
|-

! scope="row" style="text-align: left;" | D2, D3, D4, D6
| || 1N914 || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_36311_-1 36311] || Small signal switching diode
|-
! scope="row" style="text-align: left;" | D5
| || 1N4001 || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_35975_-1 35975] || 50PIV 1A power diode
|-
! scope="row" style="text-align: left;" | D1
| || || || || unused
|-
! scope="row" style="text-align: left;" | VR1
| || 7805 || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_51262_-1 51262] || 5.0V fixed output TO-220 regulator
|-
! scope="row" style="text-align: left; background-color: #99ccff;" | U1
| Intersil || CDP1802ACD3 || || ! ! ! || 8 bit microprocessor
|-
! scope="row" style="text-align: left; background-color: #99ccff;" | U2
| RCA || CDP1861D || || ! ! ! || video co-processor (hard-to-find item – see [[STG1861 Parts List]])
|-
! scope="row" style="text-align: left; background-color: #ff3366;" | U3
| STG || 27C256 || STG || ! ! ! || 32K 8 bit EPROM
|-
! scope="row" style="text-align: left;" | U4
| Hitachi || HM62256LP || JameCo || [https://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_42850_-1 42850] || 32K 8 bit low power SRAM 150ns
|-
! scope="row" style="text-align: left;" | U5
| Dallas || DS1210 || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_114198_-1 114198] || Nonvolatile SRAM controller
|-
! scope="row" style="text-align: left;" | U6
| || 74HC373 || JDR || [http://www.jdr.com/product_p/74hc373.htm 74HC373] || Octal D Latches
|-
! scope="row" style="text-align: left; background-color: #ff3366;" | U7
| Atmel || ATF22V10CQZ || STG || ! ! ! || Flash GAL (quarter power)
|-
! scope="row" style="text-align: left;" | U8
| || 74HC04 || JDR || [http://www.jdr.com/product_p/74hc04.htm 74HC04] || Hex inverter
|-
! scope="row" style="text-align: left;" | U9
| || CD4044 || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_13004_-1 13004] || Quad S-R Latches
|-
! scope="row" style="text-align: left;" | U10
| || 74HC74 || JDR || [http://www.jdr.com/product_p/74hc74.htm 74HC74] || Dual D Flip Flop
|-
! scope="row" style="text-align: left;" | U11
| - || - || - || - || unused
|-
! scope="row" style="text-align: left;" | U12, U13, U14
| || 74HC244 || JDR || [http://www.jdr.com/product_p/74hc244.htm 74HC244] || Dual Quad Buffer
|-
! scope="row" style="text-align: left;" | U15
| Dallas || DS1233 || Digi-Key || [http://search.digikey.com/us/en/products/DS1233-10%2B/DS1233-10%2B-ND/956848 DS1233-10+-ND] || 5V 10% TO-92 EconoReset (Don’t use the DS1233M!)
|-
! scope="row" style="text-align: left; background-color: #eeee00;" | U16
| Dallas || DS275 || ? || (see links) || RS-232 transceiver (2011 — hard-to-find part – see/search: [http://www.futurlec.com] or [http://www.componentsdirect.com/maxim-ds275-lead-free-rohs.html])
|-
! scope="row" style="text-align: left; background-color: #eeee00;" | DISP1-6
| || TIL311 || ? || (see links) || LED Hexadecimal Display (2011 — hard-to-find part – see/search: [http://www.utsource.net/TIL311.html])
|-
! scope="row" style="text-align: left;" | LED1-5
| || || JDR || [http://www.jdr.com/product_p/led101.htm LED101] || Red T1 LEDs
|-
! scope="row" style="text-align: left;" | OSC1
| ECS || 2100A-035 || Mouser || [http://www.mouser.com/ProductDetail/ECS/ECS-2100AX-3579545MHZ/?qs=sGAEpiMZZMt8zWNA7msRCuDqIMr8Xozz7vWkCgq%252b6Tc%3d 520-TCH357-X] || 3.579545Mhz DIP8 crystal oscillator
|-

! colspan="6" style="text-align: left;" |       MISCELLANEOUS
|-

! scope="row" style="text-align: left;" | B1
| || CR1225 || Mouser || [http://www.mouser.com/ProductDetail/Renata/CR1225CU/?qs=sGAEpiMZZMv5F0%2f93%252bxJZUXiIpeVEkp1MWybR0ulaG4%3d 614-CR1225] || Lithium coin cell
|-
! scope="row" style="text-align: left;" |
| || BH1225 || Digi-Key || [http://search.digikey.com/us/en/products/500/500K-ND/151580 500K-ND] || CR1225 coin cell holder
|-
! scope="row" style="text-align: left;" | PB1
| Panasonic || EVQ-PAD05R || Digi-Key || [http://search.digikey.com/us/en/products/EVQ-PAD05R/P10890S-ND/284831 P10890S-ND] || PCB mount push button switch
|-
! scope="row" style="text-align: left;" | S1
| C&K || T101MH9ABE || Digi-key || [http://search.digikey.com/us/en/products/T101MH9ABE/CKN1067-ND/67020 CKN1067-ND] || SPDT Tiny Toggle Switch, PCB Mount Right Angle
|-
! scope="row" style="text-align: left;" | J1
| || PJRAN1X1U04X || Mouser || [http://www.mouser.com/ProductDetail/Switchcraft/PJRAN1X1U04X/?qs=mcPJWgAPNreq%252bR%252bwE959rg%3d%3d 502-PJRAN1X1U04X] || PCB mount phono jack (Video)
|-
! scope="row" style="text-align: left;" | J2
| Cui-Stack || PJ-102AH || Digi-Key || [http://search.digikey.com/us/en/products/PJ-102AH/CP-102AH-ND/408448 CP-102AH-ND] || high current coaxial power jack (2.1 x 5.5mm)
|-
! scope="row" style="text-align: left;" | J3
| CommConn || 1184-24G2 || ? || || 24 pin dual row stacking header
|-
! scope="row" style="text-align: left;" | J4
| || || ? || || PCB mount DB9F
|-
! scope="row" style="text-align: left;" | J5
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_53480_-1 53480] || 20 pin 0.1" dual row header
|-
! scope="row" style="text-align: left;" |
| || || JDR || [http://www.jdr.com/product_p/mpsoc-08.htm MPSOC-08] || DIP8 machined pin IC socket
|-
! scope="row" style="text-align: left;" |
| || || Digi-Key || [http://search.digikey.com/us/en/products/1108800/A463-ND/261895 A463-ND] || DIP8 machined pin oscillator socket
|-
! scope="row" style="text-align: left;" |
| || || JDR || [http://www.jdr.com/product_p/mpsoc-14.htm MPSOC-14] || DIP14 machined pin IC socket
|-
! scope="row" style="text-align: left;" |
| || || JDR || [http://www.jdr.com/product_p/mpsoc-16.htm MPSOC-16] || DIP16 machined pin IC socket
|-
! scope="row" style="text-align: left;" |
| || || JDR || [http://www.jdr.com/product_p/mpsoc-20.htm MPSOC-20] || DIP20 machined pin IC socket (0.300")
|-
! scope="row" style="text-align: left;" |
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_39386_-1 39386] || DIP24 machined pin IC socket (0.300")
|-
! scope="row" style="text-align: left;" |
| || || JameCo || [http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_39351_-1 39351] || DIP24 machined pin IC socket (0.600")
|-
! scope="row" style="text-align: left;" |
| || || JDR || [http://www.jdr.com/product_p/mpsoc-28.htm MPSOC-28] || DIP28 machined pin IC socket (0.600")
|-
! scope="row" style="text-align: left;" |
| || || JDR || [http://www.jdr.com/product_p/mpsoc-40.htm MPSOC-40] || DIP40 machined pin IC socket
|-
! scope="row" style="text-align: left;" |
| || || ? || || #4-40 mounting hardware for VR1
|-
! scope="row" style="text-align: left;" |
| || || JDR || [http://www.jdr.com/product_p/hs507302b.htm HS507302B] || Heat sink for VR1
|-
! scope="row" style="text-align: left; background-color: #ff3366;" |
| STG || ELF2K-1C || STG || ! ! ! || Printed circuit board
|-

|}

NOTE: The following items are hard-to-find parts as of 2011.
 
Check the sources given.
 
    • U16 – Dallas – DS275 – RS-232 transceiver – [http://www.futurlec.com www.futurlec.com] or [http://www.componentsdirect.com/maxim-ds275-lead-free-rohs.html www.componentsdirect.com]
 
    • DISP1-6 – TIL311 – LED Hexadecimal Display – [http://www.utsource.net/TIL311.html www.utsource.net]
 
      (also note that the hexadecimal displays are optional – you may use none, or only two for data)
 

 

[[Elf_2000#Parts Lists and Suppliers|Elf 2000 Parts Lists and Suppliers]]