2 layers150.5 × 75.1 mm
2 layers110.5 × 60.1 mm
6502 project running wozmon and wozaci
- Size
- 110.5 × 60.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 21
- Nets
- 39
- Pads
- 150
- Tracks, vias
- 386, 4
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 11 May 2021
- Updated
- 12 Oct 2025
Overview
ACI is an open-source printed circuit board by murray1978, from the murray1978/A6502 repository on GitHub. It is a 2-layer board of 110.5 × 60.1 mm with 21 parts on 39 nets, routed with 386 tracks and 4 vias.
It is built around the 74LS02PC, 74LS10PC and 74LS74PC. Its parts include 8 resistors, 5 capacitors, 5 ICs and 3 connectors.
Main components
3
74LS02PC
DIP-140℃~+70℃ 15ns@5V,15pF 2 2.7V 2V 4 4.75V~5.25V 400uA 500mV 74LS 800mV 8mA 8mA NOR Gate DIP-14 Logic Gates ROHSonsemiLogic Gates74LS10PC
PDIP-140℃~+70℃ 3 3.3mA 4.75V~5.25V 74LS Series NAND Gate PDIP-14 Logic GatesonsemiLogic Gates74LS74PC
DIP-140ns 0℃~+70℃ 1 2 20MHz 3.5pF 35ns@5V,50pF 4.5ns 4.75V~5.25V 400uA 74LS Series 8mA 8mA Asynchronous Complementary D-Type Rising Edge Set and Reset DIP-14 Flip FlopsTexas InstrumentsFlip Flops
README
Hardware/ACI/README.mdCurrent aci issues.
- eprom footprint wrong.
- bypass caps wrong value, use 100n
- 3.5mm sockets to far from edge.
- text on silkscreen a bit hard to read for some values.
- yet to find any more mistakes.
Parts
21| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 10K | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P15.24mm_Horizontal | R1, R2, R4, R5, R7 |
| 4 | 10n | Capacitor_THT:C_Disc_D3.8mm_W2.6mm_P2.50mm | C4, C5, C6, C7 |
| 1 | 10R | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P15.24mm_Horizontal | R8 |
| 1 | 10n | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C1 |
| 1 | 3K | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P15.24mm_Horizontal | R3 |
| 1 | 47K | Resistor_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P15.24mm_Horizontal | R6 |
| 1 | 74LS02 | Package_DIP:DIP-14_W7.62mm_LongPads | U4 |
| 1 | 74LS10 | Package_DIP:DIP-14_W7.62mm_Socket_LongPads | U3 |
| 1 | 74LS74 | Package_DIP:DIP-14_W7.62mm_Socket_LongPads | U5 |
| 1 | AT28C16 | Package_DIP:DIP-24_W10.16mm_LongPads | U1 |
| 1 | From Tape | Connector_Audio:Jack_3.5mm_Ledino_KB3SPRS_Horizontal | J2 |
| 1 | LM741 | Package_DIP:DIP-8_W7.62mm_LongPads | U2 |
| 1 | SystemBus | Connector_IDC:IDC-Header_2x20_P2.54mm_Horizontal | J1 |
| 1 | To Tape | Connector_Audio:Jack_3.5mm_Ledino_KB3SPRS_Horizontal | J3 |
Questions
How big is the ACI PCB?
It measures 110.5 × 60.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ACI use?
21 parts, built around the 74LS02PC, 74LS10PC and 74LS74PC. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the ACI KiCad files?
From the murray1978/A6502 repository on GitHub, at the commit this page was made from: the board is Hardware/ACI/ACI.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the ACI design in my own project?
Its repository states no licence, so its author keeps all rights: ask murray1978 before reusing the design.
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