Elf 2000 Main Board Parts List
From Spare Time Gizmos' Wiki
| Ref/Desig | Manuf. | P/N | Vendor | Stock # | Description |
|---|---|---|---|---|---|
| RESISTORS | |||||
| R1, R5, R6, R7, R8 | Digi-Key | CF18JT330RCT-ND | 330 ohm 1/8W 5% carbon resistor | ||
| R2 | Digi-Key | CF18JT1K00CT-ND | 1K ohm 1/8W 5% carbon resistor | ||
| R3 | Digi-Key | CF18JT200RCT-ND | 200 ohm 1/8W 5% carbon resistor | ||
| R4 | Digi-Key | CF18JT3K30CT-ND | 3.3K ohm 1/8W 5% carbon resistor | ||
| RP1, RP3 | JameCo Digi-Key | 772238 4610X-1-103LF-ND | 10K x 9 10 pin SIP | ||
| RP2 | JameCo Digi-Key | 1970359 CSC10KN-ND | 10K x 7 8 pin SIP | ||
| RP4 | JameCo Digi-Key | 771681 4606X-1-103LF-ND | 10K x 5 6 pin SIP | ||
| CAPACITORS | |||||
| C1 | JameCo | 30017 | 1000uF 16V radial lead aluminum electrolytic capacitor | ||
| C2 | JameCo | 33689 | 10uF 6V tantalum capacitor | ||
| C3 | - | - | - | - | unused |
| C4-C24 | JameCo | 332672 | 0.1uF ceramic monolithic bypass capacitor (0.1" LS) | ||
| SEMICONDUCTORS | |||||
| D2, D3, D4, D6 | 1N914 | JameCo | 36311 | Small signal switching diode | |
| D5 | 1N4001 | JameCo | 35975 | 50PIV 1A power diode | |
| D1 | unused | ||||
| VR1 | 7805 | JameCo | 51262 | 5.0V fixed output TO-220 regulator | |
| U1 | Intersil | CDP1802ACD3 | ! ! ! | 8 bit microprocessor | |
| U2 | RCA | CDP1861D | ! ! ! | video co-processor (hard-to-find item – see STG1861 Parts List) | |
| U3 | STG | 27C256 | STG | ! ! ! | 32K 8 bit EPROM |
| U4 | Hitachi Cypress | HM62256LP CY62256LL-70PC | JameCo | 42850 391822 | 32K 8 bit low power SRAM 150ns (or faster) |
| U5 | Dallas | DS1210 | JameCo | 114198 | Nonvolatile SRAM controller |
| U6 | 74HC373 | JDR | 74HC373 | Octal D Latches | |
| U7 | Atmel | ATF22V10CQZ | STG | ! ! ! | Flash GAL (quarter power) |
| U8 | 74HC04 | JDR | 74HC04 | Hex inverter | |
| U9 | CD4044 | JameCo | 13004 | Quad S-R Latches | |
| U10 | 74HC74 | JDR | 74HC74 | Dual D Flip Flop | |
| U11 | - | - | - | - | unused |
| U12, U13, U14 | 74HC244 | JDR | 74HC244 | Dual Quad Buffer | |
| U15 | Dallas | DS1233 | Digi-Key | DS1233-10+-ND | 5V 10% TO-92 EconoReset (Don’t use the DS1233M!) |
| U16 | Dallas | DS275 | ? | (see links) | RS-232 transceiver (2011 — hard-to-find part – see/search: [1] or [2]) |
| DISP1-6 | TIL311 | ? | (see links) | LED Hexadecimal Display (2011 — hard-to-find part – see/search: [3]) | |
| LED1-5 | JDR | LED101 | Red T1 LEDs | ||
| OSC1 | ECS | 2100A-035 | Mouser | 520-TCH357-X | 3.579545Mhz DIP8 crystal oscillator |
| MISCELLANEOUS | |||||
| B1 | CR1225 | Mouser | 614-CR1225 | Lithium coin cell | |
| BH1225 | Digi-Key | 500K-ND | CR1225 coin cell holder | ||
| PB1 | Panasonic | EVQ-PAD05R | Digi-Key | P10890S-ND | PCB mount push button switch |
| S1 | C&K | T101MH9ABE | Digi-key | CKN1067-ND | SPDT Tiny Toggle Switch, PCB Mount Right Angle |
| J1 | Switchcraft | PJRAN1X1U04X | Mouser Digi-Key | 502-PJRAN1X1U04X PJRAN1X1U04X-ND | PCB mount phono jack (Video) |
| J2 | Cui-Stack | PJ-102AH | Digi-Key | CP-102AH-ND | high current coaxial power jack (2.1 x 5.5mm) |
| J3 | CommConn or Samtec | 1184-24G2 or ESQ-112-14-G-D | Samtec Newark | ESQ-112-14-G-D ESQ-112-14-G-D ESQ-112-12-L-D | 24 pin dual row stacking header ESQ-112-14-G-D for long pins or ESQ-112-12-L-D for bottom of the stack. |
| J4 | ? | PCB mount DB9F | |||
| J5 | JameCo | 53480 | 20 pin 0.1" dual row header | ||
| (for U5, U16) | JDR | MPSOC-08 | DIP8 machined pin IC socket | ||
| (for OSC1) | Digi-Key JameCo | A463-ND 676385 | DIP8 machined pin oscillator socket | ||
| (for U8, U10, DISP1-6) | JDR | MPSOC-14 | DIP14 machined pin IC socket | ||
| (for U9) | JDR | MPSOC-16 | DIP16 machined pin IC socket | ||
| (for U6, U12, U13, U14) | JDR | MPSOC-20 | DIP20 machined pin IC socket (0.300") | ||
| (for U7) | JameCo | 39386 | DIP24 machined pin IC socket (0.300") | ||
| (for U2) | JameCo | 39351 | DIP24 machined pin IC socket (0.600") | ||
| (for U3, U4) | JDR | MPSOC-28 | DIP28 machined pin IC socket (0.600") | ||
| (for U1) | JDR | MPSOC-40 | DIP40 machined pin IC socket | ||
| ? | #4-40 mounting hardware for VR1 | ||||
| JDR | HS507302B | Heat sink for VR1 | |||
| STG | ELF2K-1C | STG | ! ! ! | Printed circuit board | |
| Mouser | 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 – www.futurlec.com or www.componentsdirect.com
• DISP1-6 – TIL311 – LED Hexadecimal Display – www.utsource.net
(also note that the hexadecimal displays are optional – you may use none, or only two for data)
