6502fast3io
About the 6502fast3io PCB
6502fast3io is an open source PCB design by gfoot, published on GitHub under the Unlicense license. It is a 2-layer board measuring 99.7 × 80 mm, with 52 components from 27 distinct parts.
Other key parts include the I/O PLD, 28C256, 74HCT138, 74AHCT245 and 74HCT273. By type, the board carries 18 capacitors, 9 resistors, 7 ICs, 5 connectors, 5 diodes and 3 switches.
It belongs with the retro computing designs in this gallery.
From the project
Fast PDIP-only 6502-based homebrew computer - code and hardware design sources
There are various KiCad projects that together make up the system. The I/O module and CPU module are required of course, the others are optional add-ons.
The gerbers for all the revisions I've made ("issues") are also included, along with exported schematics in PDF and PNG files correspsonding to those revisions for easy reference.
Main components on the 6502fast3io
6502fast3io bill of materials (BOM)
52 components, 27 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | I/O PLD | DIP-20_W7.62mm_Socket | U3 |
| 1 | 28C256 | DIP-28_W15.24mm_Socket | U9 |
| 1 | 74HCT138 | DIP-16_W7.62mm | U12 |
| 1 | 74AHCT245 | DIP-20_W7.62mm | U13 |
| 1 | 74HCT273 | DIP-20_W7.62mm | U14 |
| 1 | 74HC14 | DIP-14_W7.62mm | U15 |
| 1 | 74AHCT74 | DIP-14_W7.62mm | U16 |
| 1 | IRF9540N | TO-220-3_Horizontal_TabDown_NoHole | Q1 |
| 1 | 2N7000 | TO-92_Inline | Q2 |
| 1 | 4MHz | Oscillator_DIP-8 | X2 |
| 1 | Barrel_Jack | BarrelJack_Horizontal | J1 |
| 3 | conn_pcb_edge_33pin_sense | 6502fast2_IO_PCBEdgeSocket | J7, J8, J9 |
| 1 | Conn_02x18_Odd_Even | PCB_Edge_Socket_36pin | J10 |
| 1 | HDSP-4850_2 | HDSP-4850 | BAR1 |
| 1 | Fuse | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | F1 |
| 3 | SW_Push | SW_PUSH_6mm_H4.3mm | SW1, SW2, SW3 |
| 1 | 1N4001 | D_DO-41_SOD81_P10.16mm_Horizontal | D1 |
| 3 | 1N5817 | D_DO-34_SOD68_P7.62mm_Horizontal | D2, D3, D4 |
| 1 | 1N4148 | D_DO-34_SOD68_P10.16mm_Horizontal | D5 |
| 16 | .1u | C_Disc_D3.0mm_W1.6mm_P2.50mm | C1, C2, C3, C9, C14, C15, C16, C17 +8 |
Show 7 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 10u | CP_Radial_D5.0mm_P2.00mm | C10 |
| 1 | 100u | CP_Radial_D5.0mm_P2.00mm | C11 |
| 4 | 22k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R2, R4, R6 |
| 1 | 1k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R3 |
| 2 | 47 | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R5, R7 |
| 1 | 3k3 | DIP-16_W7.62mm | RN1 |
| 1 | 10k | R_Array_SIP9 | RN2 |
6502fast3io design files
The KiCad project lives in the gfoot/fastpdip6502 repository on GitHub; these links point at the commit this page was built from.
6502fast3io: common questions
How big is the 6502fast3io PCB?
The 6502fast3io measures 99.7 × 80 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the 6502fast3io?
52 components, from 27 distinct parts. The full bill of materials is listed on this page.
Where can I download the 6502fast3io design files?
From the gfoot/fastpdip6502 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the 6502fast3io design in my own project?
Yes, under the terms of its Unlicense license, which gfoot chose for the repository.
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