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STD 6 - Program Counter & Memory
Mode: Editors' pick
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Update time：
2020-04-08 05:07:20
Creation time：
2017-11-25 01:15:34
Description
JACA-2 Homebrew computer schematics.
More info:
https://hackaday.io/project/24511-jaca-1-2-homebrew-computer
Design Drawing
schematic diagram
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PCB
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PCB - Program Counter & Memory
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | 1K | R14,R1 | AXIAL-0.3 | 2 |
| 2 | 74LS161N | U1,U4,U2,U3 | DIP16 | 4 |
| 3 | DM74LS244N | U5,U6,U14,U13,U16,U15,U18,U20,U21 | DIP20 | 9 |
| 4 | 28C256 | U7 | DIP28W | 1 |
| 5 | LED BarGraph | BARLED2,BARLED1,BARLED4,BARLED3 | LEDBAR-10-DC-10SGWA | 4 |
| 6 | 1R | R15,R7,R6,R5,R4,R13,R8 | AXIAL-0.3 | 7 |
| 7 | 1k | R2 | AXIAL-0.3 | 1 |
| 8 | JUMPER_PROG | JP1 | JUMPER2 | 1 |
| 9 | 62256P | U30 | DIP28-600 | 1 |
| 10 | LEDOrange orange 3AO4UD | LED1,LED5,LED3,LED4,LED2,LED6 | LED-3MM | 6 |
| 11 | 4K7 | RN2,RN1,RN9,RN10 | R_ARRAY_SIP9 | 4 |
| 12 | HD74LS02P | U8 | DIP14 | 1 |
| 13 | HD74LS08P | U19 | DIP14 | 1 |
| 14 | SN74LS32N | U24,U27,U26,U28,U29 | DIP14 | 5 |
| 15 | HD74LS04P | U25 | DIP14 | 1 |
| 16 | 74HCT00 | U12,U17 | DIP14 | 2 |
| 17 | HD74LS00P | U9 | DIP14 | 1 |
| 18 | 74LS32 | U11 | DIP14 | 1 |
| 19 | 74LS11 | U10 | DIP14 | 1 |
| 20 | Header-Female-2.54_1x16 | P1 | HDR-16X1/2.54 | 1 |
| 21 | Header2.54mm 1*8P | P2 | HDR-TH_8PIN-V-MALE-PITCH2.54 | 1 |
| 22 | 09 18 120 9621 | P3,P8,P4,P6,P5 | 9181209621 | 5 |
| 23 | 09 18 140 9621 | P7,P9 | 9181409621 | 2 |
| 24 | 74874 | U22,U23 | DIP24-300 | 2 |
| 25 | 1OOnF | C30,C29,C28,C27,C26,C25,C24,C23,C22,C21,C20,C19,C18,C17,C16,C15,C14,C13,C4,C3,C2,C1,C5,C6,C7,C8,C9,C10,C11,C12 | RAD-0.1 | 30 |
| 26 | 4K7 | R12,R11,R10,R9,R3 | AXIAL-0.3 | 5 |
| 27 | 1K | RN7,RN6,RN5,RN3,RN4,RN11,RN8 | R_ARRAY_SIP9 | 7 |
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