Elf 2000 Main Board Parts List
| Ref/Desig
| Manuf.
| P/N
| Vendor
| Stock
| Description
|
| RESISTORS
|
| R1, R5, R6, R7, R8
| | | Anchor | | 330 ohm 1/8W 5% carbon resistor
|
| R2
| | | Anchor | | 1K ohm 1/8W 5% carbon resistor
|
| R3
| | | Anchor | | 200 ohm 1/8W 5% carbon resistor
|
| R4
| | | Anchor | | 3.3K ohm 1/8W 5% carbon resistor
|
| RP1, RP3
| | | Anchor | | 10K x 9 10 pin SIP
|
| RP2
| | | Anchor | | 10K x 7 8 pin SIP
|
| RP4
| | | Anchor | | 10K x 5 6 pin SIP
|
| CAPACITORS
|
| C1
| | | Anchor | | 1000uF 16V radial lead aluminum electrolytic capacitor
|
| C2
| | | Anchor | | 10uF 6V tantalum capacitor
|
| C3
| | | Anchor | | unused
|
| C4-C24
| | | Anchor | | 0.1uF ceramic monolithic bypass capacitor (0.1" LS)
|
| SEMICONDUCTORS
|
| D2, D3, D4, D6
| | 1N914 | Anchor | | Small signal switching diode
|
| D5
| | 1N4001 | Anchor | | 50PIV 1A power diode
|
| D1
| | | | | unused
|
| VR1
| | 7805 | Anchor | | 5.0V fixed output TO-220 regulator
|
| U1
| Intersil | CDP1802ACD3 | STG | | 8 bit microprocessor
|
| U2
| RCA | CDP1861D | | | video co-processor
|
| U3
| | | 27C256 | Anchor | 32K 8 bit EPROM
|
| U4
| Hitachi | HM62256LP | Digi-Key | | 32K 8 bit low power SRAM 150ns
|
| U5
| Dallas | DS1210 | Digi-Key | | Nonvolatile SRAM controller
|
| U6
| 74HC373 | Anchor | | | Octal D Latches
|
| U7
| Atmel | ATF22V10CQZ | Digi-Key | | Flash GAL (quarter power)
|
| U8
| | 74HC04 | Anchor | | Hex inverter
|
| U9
| | CD4044 | Anchor | | Quad S-R Latches
|
| U10
| | 74HC74 | Anchor | | Dual D Flip Flop
|
| U11
| | | | | unused
|
| U12, U13, U14
| | 74HC244 | Anchor | | Dual Quad Buffer
|
| U15
| Dallas | DS123324 | JDR | | 5V 10% TO-92 EconoReset
|
| U16
| Dallas | DS275 | Digi-Key | | RS-232 transceiver
|
| DISP1-6
| | TIL311 | Jameco | | LED Hexadecimal Display
|
| LED1-5
| | | Anchor | | Red T1 LEDs
|
| OSC1
| ECS | 2100A-035 | Digi-Key | XC235 | 3.579545Mhz DIP8 crystal oscillator
|
| MISCELLANEOUS
|
| B1
| | CR1225 | Mouser | | Lithium coin cell
|
|
| | BH1225 | Digi-Key | 500K | CR1225 coin cell holder
|
| PB1
| Panasonic | EVQ-PAD05R | Digi-Key | P10890S | PCB mount push button switch
|
| S1
| C&K | T101MH9ABE | Digi-key | CKN1067 | SPDT Tiny Toggle Switch, PCB Mount Right Angle
|
| J1
| | | Anchor | | PCB mount phono jack (Video)
|
| J2
| Cui-Stack | PJ-102AH | Digi-Key | CP-102AH | high current coaxial power jack (2.1 x 5.5mm)
|
| J3
| CommConn | 1184-24G2 | | | 24 pin dual row stacking header
|
| J4
| | | Anchor | | PCB mount DE9F
|
| J5
| | | Anchor | | 20 pin 0.1" dual row header
|
|
| | | Anchor | | DIP8 machined pin IC socket
|
|
| | | Anchor | | DIP8 machined pin oscillator socket
|
|
| | | Anchor | | DIP14 machined pin IC socket
|
|
| | | Anchor | | DIP16 machined pin IC socket
|
|
| | | Anchor | | DIP20 machined pin IC socket (0.300")
|
|
| | | Anchor | | DIP24 machined pin IC socket (0.300")
|
|
| | | Anchor | | DIP24 machined pin IC socket (0.600")
|
|
| | | Anchor | | DIP28 machined pin IC socket (0.600")
|
|
| | | Anchor | | DIP40 machined pin IC socket
|
|
| | | | | #4-40 mounting hardware for VR1
|
|
| | | Digi-Key | HS104-1 | Heat sink for VR1
|
|
| STG | ELF2K-1C | | | Printed circuit board
|
