Elf 2000

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This page contains user contributed documentation for the [http://www.sparetimegizmos.com/Hardware/Elf2K.htm '''Elf 2000'''] and associated peripherals, including
This page contains user contributed documentation for the [http://www.sparetimegizmos.com/Hardware/Elf2K.htm '''Elf 2000'''] and associated peripherals, including
-
* The [http://www.sparetimegizmos.com/Hardware/Elf2K_Accessories.htm STG1681 Pixie Graphics Replacement]
+
* The [http://www.sparetimegizmos.com/Hardware/Elf2K_Accessories.htm STG1861 Pixie Graphics Replacement]
* The [http://www.sparetimegizmos.com/Hardware/Elf2K_Accessories.htm Disk, UART and RTC Board]
* The [http://www.sparetimegizmos.com/Hardware/Elf2K_Accessories.htm Disk, UART and RTC Board]
* The [http://www.sparetimegizmos.com/Hardware/Elf2K_Accessories.htm 80 Column Text Video Board]
* The [http://www.sparetimegizmos.com/Hardware/Elf2K_Accessories.htm 80 Column Text Video Board]
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I have ordered an additional run of PC boards for the Elf 2000, Disk/UART/RTC and STG1861.  These three boards will be tiled together onto a single panel and sold as a unit, along with a pre-programmed Elf 2000 EPROM and a set of GALs.  At this time I don't anticipate offering any other parts with the kit, however everything else you need, including the CDP1802s, are readily available.  When the parts are available I will post an announcement to the Yahoo [http://groups.yahoo.com/group/cosmacelf COSMAC Elf] and [http://groups.yahoo.com/group/sparetimegizmos Spare Time Gizmos] groups - Gizmos 18 October 2011.
I have ordered an additional run of PC boards for the Elf 2000, Disk/UART/RTC and STG1861.  These three boards will be tiled together onto a single panel and sold as a unit, along with a pre-programmed Elf 2000 EPROM and a set of GALs.  At this time I don't anticipate offering any other parts with the kit, however everything else you need, including the CDP1802s, are readily available.  When the parts are available I will post an announcement to the Yahoo [http://groups.yahoo.com/group/cosmacelf COSMAC Elf] and [http://groups.yahoo.com/group/sparetimegizmos Spare Time Gizmos] groups - Gizmos 18 October 2011.
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== Errata ==
+
== Errata and Addenda ==
 +
[[List of Errata and Addenda]]
== Parts Lists and Suppliers ==
== Parts Lists and Suppliers ==
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* [[STG1861 Parts List]]
* [[STG1861 Parts List]]
* [[Disk/UART/RTC/NVR Parts List]]
* [[Disk/UART/RTC/NVR Parts List]]
 +
* [[Hexadecimal Keypad Parts List]]
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{| class="wikitable sortable" style="font-size: 100%; text-align: left; width: auto;"
+
----
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|+ style="font-size: 125%;" | Elf 2000 Main Board Parts List
+
-
|-
+
-
! scope="col" style="font-size: 100%; text-align:left;"  class="sortable"  | Ref/Desig
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-
! 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
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-
! scope="col" style="font-size: 100%; text-align:center;" class="sortable"  | Vendor
+
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! scope="col" style="font-size: 100%; text-align:left;"  class="unsortable" | Stock
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-
! scope="col" style="font-size: 100%; text-align:left;"  class="unsortable" | Description
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|-
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! colspan="6" style="text-align: left;" |       RESISTORS
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<blockquote>Note: As per section 2.3 of the [http://www.sparetimegizmos.com/Downloads/Elf2k.pdf Elf2k.pdf]
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|-
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[http://www.sparetimegizmos.com/ Spare Time Gizmos] COSMACELF 2000 USER'S MANUAL.
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! scope="row" style="text-align: left;" | R1, R5, R6, R7, R8
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<blockquote style="width: 500px;">2.3 OPTIONAL SUBSYSTEMS
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| || || Anchor || || 330 ohm 1/8W 5% carbon resistor
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<br><br>
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|-
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Many subsystems of the Elf 2000 are optional and may be omitted without affecting the function
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! scope="row" style="text-align: left;" | R2
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of the remaining parts. In some cases when optional subsystems are omitted special jumpers or
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| || || Anchor || || 1K ohm 1/8W 5% carbon resistor
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connections may be required to enable the rest of the logic to continue functioning. This section
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|-
+
discusses the optional subsystems in the Elf 2000 and how to safely remove them.
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! scope="row" style="text-align: left;" | R3
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| || || Anchor || || 200 ohm 1/8W 5% carbon resistor
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|-
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! scope="row" style="text-align: left;" | R4
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| || || Anchor || || 3.3K ohm 1/8W 5% carbon resistor
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|-
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! scope="row" style="text-align: left;" | RP1, RP3
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| || || Anchor || || 10K x 9 10 pin SIP
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|-
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! scope="row" style="text-align: left;" | RP2
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| || || Anchor || || 10K x 7 8 pin SIP
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|-
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! scope="row" style="text-align: left;" | RP4
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| || || Anchor || || 10K x 5 6 pin SIP
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|-
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! colspan="6" style="text-align: left;" | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CAPACITORS
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<br><br>
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|-
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-
! scope="row" style="text-align: left;" | C1
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You may also want to consider the option of building your first Elf with one or more of these
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| || || Anchor || || 1000uF 16V radial lead aluminum electrolytic capacitor
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subsystems omitted to save both money and time. In this case you can always go back and add
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|-
+
the missing parts at any time.</blockquote></blockquote>
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! scope="row" style="text-align: left;" | C2
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| || || Anchor || || 10uF 6V tantalum capacitor
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|-
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! scope="row" style="text-align: left;" | C3
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| || || Anchor || || unused
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|-
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! scope="row" style="text-align: left;" | C4-C24
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| || || Anchor || || 0.1uF ceramic monolithic bypass capacitor (0.1" LS)
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|-
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! colspan="6" style="text-align: left;" | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; SEMICONDUCTORS
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== Parts Suppliers ==
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|-
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-
! scope="row" style="text-align: left;" | D2, D3, D4, D6
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The parts for the various boards can be found from various sources.
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| || 1N914 || Anchor || || Small signal switching diode
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No one supplier has all of the needed items.
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|-
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-
! scope="row" style="text-align: left;" | D5
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| || 1N4001 || Anchor || || 50PIV 1A power diode
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|-
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! scope="row" style="text-align: left;" | D1
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| || || || || unused
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|-
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! scope="row" style="text-align: left;" | VR1
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| || 7805 || Anchor || || 5.0V fixed output TO-220 regulator
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|-
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! scope="row" style="text-align: left;" | U1
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| Intersil || CDP1802ACD3 || STG || || 8 bit microprocessor
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|-
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! scope="row" style="text-align: left;" | U2
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| RCA || CDP1861D || || || video co-processor
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|-
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! scope="row" style="text-align: left;" | U3
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| || || 27C256 || Anchor || 32K 8 bit EPROM
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|-
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! scope="row" style="text-align: left;" | U4
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| Hitachi || HM62256LP || Digi-Key || || 32K 8 bit low power SRAM 150ns
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|-
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! scope="row" style="text-align: left;" | U5
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| Dallas || DS1210 || Digi-Key || || Nonvolatile SRAM controller
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|-
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! scope="row" style="text-align: left;" | U6
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| 74HC373 || Anchor || || || Octal D Latches
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|-
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! scope="row" style="text-align: left;" | U7
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| Atmel || ATF22V10CQZ || Digi-Key || || Flash GAL (quarter power)
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|-
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! scope="row" style="text-align: left;" | U8
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| || 74HC04 || Anchor || || Hex inverter
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|-
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! scope="row" style="text-align: left;" | U9
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| || CD4044 || Anchor || || Quad S-R Latches
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|-
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! scope="row" style="text-align: left;" | U10
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| || 74HC74 || Anchor || || Dual D Flip Flop
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|-
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! scope="row" style="text-align: left;" | U11
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| || || || || unused
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|-
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! scope="row" style="text-align: left;" | U12, U13, U14
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| || 74HC244 || Anchor || || Dual Quad Buffer
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|-
+
-
! scope="row" style="text-align: left;" | U15
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| Dallas || DS123324 || JDR || || 5V 10% TO-92 EconoReset
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|-
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! scope="row" style="text-align: left;" | U16
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| Dallas || DS275 || Digi-Key || || RS-232 transceiver
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|-
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-
! scope="row" style="text-align: left;" | DISP1-6
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| || TIL311 || Jameco || || LED Hexadecimal Display
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|-
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! scope="row" style="text-align: left;" | LED1-5
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| || || Anchor || || Red T1 LEDs
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|-
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! scope="row" style="text-align: left;" | OSC1
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| ECS || 2100A-035 || Digi-Key || XC235 || 3.579545Mhz DIP8 crystal oscillator
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|-
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! colspan="6" style="text-align: left;" | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MISCELLANEOUS
+
[[Parts Sources List]]
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|-
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! scope="row" style="text-align: left;" | B1
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== Other Resources ==
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| || CR1225 || Mouser || || Lithium coin cell
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|-
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! scope="row" style="text-align: left;" |
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| || BH1225 || Digi-Key || 500K || CR1225 coin cell holder
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|-
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-
! scope="row" style="text-align: left;" | PB1
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| Panasonic || EVQ-PAD05R || Digi-Key || P10890S || PCB mount push button switch
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|-
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-
! scope="row" style="text-align: left;" | S1
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-
| C&K || T101MH9ABE || Digi-key || CKN1067 || SPDT Tiny Toggle Switch, PCB Mount Right Angle
+
-
|-
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! scope="row" style="text-align: left;" | J1
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| || || Anchor || || PCB mount phono jack (Video)
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|-
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! scope="row" style="text-align: left;" | J2
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-
| Cui-Stack || PJ-102AH || Digi-Key || CP-102AH || high current coaxial power jack (2.1 x 5.5mm)
+
-
|-
+
-
! scope="row" style="text-align: left;" | J3
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-
| CommConn || 1184-24G2 || || || 24 pin dual row stacking header
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|-
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-
! scope="row" style="text-align: left;" | J4
+
-
| || || Anchor || || PCB mount DE9F
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-
|-
+
-
! scope="row" style="text-align: left;" | J5
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| || || Anchor || || 20 pin 0.1" dual row header
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|-
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-
! scope="row" style="text-align: left;" |
+
-
| || || Anchor || || DIP8 machined pin IC socket
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|-
+
-
! scope="row" style="text-align: left;" |
+
-
| || || Anchor || || DIP8 machined pin oscillator socket
+
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|-
+
-
! scope="row" style="text-align: left;" |
+
-
| || || Anchor || || DIP14 machined pin IC socket
+
-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| || || Anchor || || DIP16 machined pin IC socket
+
-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| || || Anchor || || DIP20 machined pin IC socket (0.300")
+
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|-
+
-
! scope="row" style="text-align: left;" |
+
-
| || || Anchor || || DIP24 machined pin IC socket (0.300")
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-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| || || Anchor || || DIP24 machined pin IC socket (0.600")
+
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|-
+
-
! scope="row" style="text-align: left;" |
+
-
| || || Anchor || || DIP28 machined pin IC socket (0.600")
+
-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| || || Anchor || || DIP40 machined pin IC socket
+
-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| || || || || #4-40 mounting hardware for VR1
+
-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| || || Digi-Key || HS104-1 || Heat sink for VR1
+
-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| STG || ELF2K-1C || || || Printed circuit board
+
-
|-
+
-
|}
+
{|
-
 
+
-
 
+
-
 
+
-
{| class="wikitable sortable" style="font-size: 100%; text-align: left; width: auto;"
+
-
|+ style="font-size: 125%;" | Switch Panel Parts List
+
|-
|-
-
! scope="col" style="font-size: 100%; text-align:left;"  class="sortable"  | Ref/Desig
+
!Website
-
! scope="col" style="font-size: 100%; text-align:left;"  class="unsortable" | Manuf.
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!Location
-
! 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
+
|-
|-
-
 
+
|Spare Time Gizmos
-
! scope="row" style="text-align: left;" | D0-7, RUN, MP
+
|[http://www.sparetimegizmos.com/ http://www.sparetimegizmos.com/]
-
| || || Jameco || 76523CR || SPST toggle switch
+
|-
|-
-
! scope="row" style="text-align: left;" | LOAD
+
|Spare Time Gizmos Group
-
| || || Jameco || 21936CR || SPDT toggle switch
+
|[http://groups.yahoo.com/group/sparetimegizmos/ http://groups.yahoo.com/group/sparetimegizmos/]
|-
|-
-
! scope="row" style="text-align: left;" | INPUT
+
|COSMAC ELF and 1802 Microcomputing Group
-
| || || Jameco || 28062CR || SPDT toggle switch (momentary) or push button
+
|[http://groups.yahoo.com/group/cosmacelf/ http://groups.yahoo.com/group/cosmacelf/]
|-
|-
-
! scope="row" style="text-align: left;" |
+
|The RCA COSMAC VIP Group
-
| || || Anchor || || 20 pin 0.1" dual row header
+
|[http://groups.yahoo.com/group/rcacosmac/ http://groups.yahoo.com/group/rcacosmac/]
-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| || || Anchor || || 20 pin IDC connector
+
-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| || || Anchor || || 6" 20 conductor ribbon cable
+
-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| || || Tap || || 5 1/2" x 2" x 3/16" ABS (switch panel)
+
-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| || || Tap || || 6 3/4" x 1" x 3/8" Acrylic (side rails)
+
-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| STG || || || || Front panel decal (see Appendix D)
+
-
|-
+
-
 
+
-
|}
+
-
 
+
-
 
+
-
 
+
-
{| class="wikitable sortable" style="font-size: 100%; text-align: left; width: auto;"
+
-
|+ style="font-size: 125%;" | STG1861 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;" | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CAPACITORS
+
-
|-
+
-
 
+
-
! scope="row" style="text-align: left;" | C1-C4
+
-
| || || Anchor || || 0.1uF ceramic monolithic bypass capacitor (0.1" LS)
+
-
|-
+
-
 
+
-
! colspan="6" style="text-align: left;" | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; SEMICONDUCTORS
+
-
|-
+
-
 
+
-
! scope="row" style="text-align: left;" | D1, D2
+
-
| || 1N914 || Anchor || || Small signal switching diode
+
-
|-
+
-
! scope="row" style="text-align: left;" | U1, U2
+
-
| Atmel || ATF22V10CQZ || Digi-Key || || Flash GAL (quarter power)
+
-
|-
+
-
! scope="row" style="text-align: left;" | U3
+
-
| || 74HC4040 || Anchor || || 12 bit counter
+
-
|-
+
-
! scope="row" style="text-align: left;" | U4
+
-
| || 74HC165 || Anchor || || 8 bit parallel in serial out shift register
+
-
|-
+
-
 
+
-
! colspan="6" style="text-align: left;" | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MISCELLANEOUS
+
-
|-
+
-
 
+
-
! scope="row" style="text-align: left;" |
+
-
| || || Anchor || || DIP16 machined pin IC socket
+
-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| || || Anchor || || DIP24 machined pin IC socket (0.300")
+
-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| || || Anchor || || 12 pin female header strip
+
-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| || || Anchor || || 12 pin wire wrap header strip
+
-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| || || Anchor || || Shorting plugs
+
-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| Keystone || 1560A || Mouser || 534-1560A || #4-40 swage stand offs, 0.125" high, 0.250" diameter
+
-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| || || Olander || || 4-40 1/2" hex nylon M/F standoffs
+
-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| || || Olander || || 4-40 1/4" Philips pan head nylon screws
+
-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| STG || PIXIE-1B || || || Printed circuit board
+
-
|-
+
-
 
+
-
|}
+
-
 
+
-
 
+
-
 
+
-
{| class="wikitable sortable" style="font-size: 100%; text-align: left; width: auto;"
+
-
|+ style="font-size: 125%;" | Disk/UART/RTC/NVR Daughter 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;" | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; RESISTORS
+
-
|-
+
-
 
+
-
! scope="row" style="text-align: left;" | R1
+
-
| || || Anchor || || 10M ohm 1/8W 5% carbon resistor
+
-
|-
+
-
! scope="row" style="text-align: left;" | R2
+
-
| || || Anchor || || 330 ohm 1/8W 5% carbon resistor
+
-
|-
+
-
! scope="row" style="text-align: left;" | RP1
+
-
| || || Anchor || || 4.7K 6 pin 5 resistor SIP
+
-
|-
+
-
 
+
-
! colspan="6" style="text-align: left;" | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CAPACITORS
+
-
|-
+
-
 
+
-
! scope="row" style="text-align: left;" | C1, C2
+
-
| || || Anchor || || 22pf 0.1" 50V mono ceramic capacitor
+
-
|-
+
-
! scope="row" style="text-align: left;" | C3-C6
+
-
| || || Anchor || || 1uF 35V tantalum capacitor
+
-
|-
+
-
! scope="row" style="text-align: left;" | C7, C8
+
-
| || || || || 47uF 6V tantalum capacitor
+
-
|-
+
-
! scope="row" style="text-align: left;" | C9, C10
+
-
| || || || || unused
+
-
|-
+
-
! scope="row" style="text-align: left;" | C11-C17
+
-
| || || Anchor || || 0.1uF ceramic monolithic bypass capacitor (0.1" LS)
+
-
|-
+
-
 
+
-
! colspan="6" style="text-align: left;" | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; SEMICONDUCTORS
+
-
|-
+
-
 
+
-
! scope="row" style="text-align: left;" | D1, D2, D3
+
-
| || 1N914 || Anchor || || Small signal switching diode
+
-
|-
+
-
! scope="row" style="text-align: left;" | D4
+
-
| Dialight || 555-2301 || Digi-Key || || Green 2mm LED (right angle PCB mount)26
+
-
|-
+
-
! scope="row" style="text-align: left;" | U1
+
-
| Atmel || ATF22V10CQZ || Digi-Key || || Flash GAL (quarter power)
+
-
|-
+
-
! scope="row" style="text-align: left;" | U2
+
-
| || 74HC245 || Anchor || || Octal bus transceivers
+
-
|-
+
-
! scope="row" style="text-align: left;" | U3
+
-
| || 74HC174 || Anchor || || Hex D flip flops w/clear
+
-
|-
+
-
! scope="row" style="text-align: left;" | U4
+
-
| Dallas || DS12887A || Jameco || || Nonvolatile RAM and Real Time Clock
+
-
|-
+
-
! scope="row" style="text-align: left;" | U5
+
-
| Maxim || MAX232 || Anchor || || RS232 Line Driver/Receiver
+
-
|-
+
-
! scope="row" style="text-align: left;" | U6
+
-
| || || || || unused
+
-
|-
+
-
! scope="row" style="text-align: left;" | U7
+
-
| || 16C450 || Anchor || || Asynchronous Communication Element (UART)
+
-
|-
+
-
! scope="row" style="text-align: left;" | U8
+
-
| || 74HC04 || Anchor || || Hex Inverter
+
-
|-
+
-
 
+
-
! colspan="6" style="text-align: left;" | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; MISCELLANEOUS
+
-
|-
+
-
 
+
-
! scope="row" style="text-align: left;" | Y1
+
-
| || || Anchor || || 2.4576Mhz HC18 crystal
+
-
|-
+
-
! scope="row" style="text-align: left;" | J1
+
-
| CommConn || 1184-24G || STG || || 24 pin stacking bus connector
+
-
|-
+
-
! scope="row" style="text-align: left;" | J2
+
-
| GC/Waldom || 53856-5010 || Digi-key || WM18505 || Type I CF connector, SMT right angle top mount
+
-
|-
+
-
! scope="row" style="text-align: left;" | J3
+
-
| || || Anchor || DB9M || DB9 male PCB mount
+
-
|-
+
-
! scope="row" style="text-align: left;" | J4
+
-
| || || Anchor || || 40 pin 0.1" shrouded header (IDE)
+
-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| || || Anchor || || DIP16 machined pin IC socket
+
-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| || || Anchor || || DIP20 machined pin IC socket (0.300")
+
-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| || || Anchor || || DIP24 machined pin IC socket (0.300")
+
-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| || || Anchor || || DIP24 machined pin IC socket (0.600")
+
-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| || || Anchor || || DIP40 machined pin IC socket
+
-
|-
+
-
! scope="row" style="text-align: left;" | JP1-JP5
+
-
| || || Anchor || || 2 pin 0.1" header (jumper)
+
-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| || || Anchor || || Shorting plugs
+
-
|-
+
-
! scope="row" style="text-align: left;" |
+
-
| STG || ELFDISK-1B ||  || || Printed circuit board
+
-
|-
+
-
 
+
|}
|}
== FAQs ==
== FAQs ==

Latest revision as of 18:20, 18 July 2016

This page contains user contributed documentation for the Elf 2000 and associated peripherals, including

The information on this page is supplemental and is not a substitute for reading the Elf 2000 User's Manual.


Contents

[edit] Announcements

Elf2000 Disk/UART/RTC STG1861 Combination PCB

The combination PC boards have arrived and all orders excepting the international ones have been shipped. Internation orders require me to stand in line at the Post Office, so that'll have to wait until Monday! --Gizmos 11:54, 4 November 2011 (PDT)

I have ordered an additional run of PC boards for the Elf 2000, Disk/UART/RTC and STG1861. These three boards will be tiled together onto a single panel and sold as a unit, along with a pre-programmed Elf 2000 EPROM and a set of GALs. At this time I don't anticipate offering any other parts with the kit, however everything else you need, including the CDP1802s, are readily available. When the parts are available I will post an announcement to the Yahoo COSMAC Elf and Spare Time Gizmos groups - Gizmos 18 October 2011.

[edit] Errata and Addenda

List of Errata and Addenda

[edit] Parts Lists and Suppliers

Note: As per section 2.3 of the Elf2k.pdf Spare Time Gizmos COSMACELF 2000 USER'S MANUAL.
2.3 OPTIONAL SUBSYSTEMS

Many subsystems of the Elf 2000 are optional and may be omitted without affecting the function of the remaining parts. In some cases when optional subsystems are omitted special jumpers or connections may be required to enable the rest of the logic to continue functioning. This section discusses the optional subsystems in the Elf 2000 and how to safely remove them.

You may also want to consider the option of building your first Elf with one or more of these subsystems omitted to save both money and time. In this case you can always go back and add the missing parts at any time.

[edit] Parts Suppliers

The parts for the various boards can be found from various sources. No one supplier has all of the needed items.

Parts Sources List

[edit] Other Resources

Website Location
Spare Time Gizmos http://www.sparetimegizmos.com/
Spare Time Gizmos Group http://groups.yahoo.com/group/sparetimegizmos/
COSMAC ELF and 1802 Microcomputing Group http://groups.yahoo.com/group/cosmacelf/
The RCA COSMAC VIP Group http://groups.yahoo.com/group/rcacosmac/

[edit] FAQs

Retrieved from "http://sparetimegizmos.com/wdoc/index.php?title=Elf_2000"
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