64K 640K ISA
About the 64K 640K ISA PCB
64K 640K ISA is an open source PCB design by homebrew8088, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 104 × 73.9 mm, with 12 components from 6 distinct parts.
Other key parts include the 64K, AS6C1008, AS6C4008, 74LS139 and 74LS138. By type, the board carries 6 ICs and 6 capacitors.
From the project
8088 PC XT Compatible
\ \ This is a repository for my 8088 PC Compatible project developed in 2021. The Motherboard is built to be generally PC XT compatible.
Join the discussion group on Discord\ https://discord.gg/AswNqwpRGP
eBay store\ http://www.ebay.com/sch/emil6190/m.html
Features:\ -8088, NEC V20, OR NEC V40 Processor\ -512k RAM (This can be changed)\ -8 Bit ISA sockets (4 slots or 7 slots)\ -PC Speaker\ -USB "Hard Drive"\ -PS/2 Keyboard\ -ATX form factor\ -Add on DMA controller (7 slot ISA only)
Main components on the 64K 640K ISA
64K 640K ISA bill of materials (BOM)
12 components, 6 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 64K | DIP-32_W15.24mm | U1, U2 |
| 1 | AS6C1008 | DIP-32_W15.24mm | U3 |
| 1 | AS6C4008 | DIP-32_W15.24mm | U4 |
| 1 | 74LS139 | DIP-16_W7.62mm | U5 |
| 1 | 74LS138 | DIP-16_W7.62mm | U6 |
| 6 | 0.1UF 0.1uF | C_Disc_D4.3mm_W1.9mm_P5.00mm | C1, C2, C3, C4, C5, C6 |
64K 640K ISA design files
The KiCad project lives in the homebrew8088/8088-PC-Compatible repository on GitHub; these links point at the commit this page was built from.
64K 640K ISA: common questions
How big is the 64K 640K ISA PCB?
The 64K 640K ISA measures 104 × 73.9 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the 64K 640K ISA?
12 components, from 6 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the 64K 640K ISA design files?
From the homebrew8088/8088-PC-Compatible repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the 64K 640K ISA design in my own project?
Yes, under the terms of its GPL-3.0 license, which homebrew8088 chose for the repository.
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