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C64-sram full pinout

jamarju·c64-sram·kicad-project/c64-sram-full-pinout.kicad_pcb

C64-sram full pinout PCB layout, top view — open source board by jamarju
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About the C64-sram full pinout PCB

C64-sram full pinout is an open source PCB design by jamarju, published on GitHub. It is a 2-layer board measuring 26.7 × 34.9 mm, with 5 components from 4 distinct parts.

Other key parts include the IS61C1024AL, 74HCT573, 74F32 and TMS4464.

It belongs with the retro computing designs in this gallery.

From the project

SRAM substitute for C64C shortboards

This is a static RAM replacement for C64C chips U10 and U11 (motherboards assy no. 250469).

It may also work on assy no. 250466 (DRAM chips U9 and U10), but I have only tested it on a 250469 board.

It is based on Gerrit4's design, originally posted at the lemon64 forum.

See bom and gerber if you wish to build your own.

You can use any pin headers you find suitable but I suggest 0.50 mm round pin headers so as not to put too much stress on the sockets. They are easy to find on Aliexpress as "gold round male pin".

C64-sram full pinout, from the project README
From the project README

Main components on the C64-sram full pinout

IS61C1024AL74HCT57374F32TMS4464

C64-sram full pinout bill of materials (BOM)

5 components, 4 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
IS61C1024AL
IC1
1
74HCT573
IC2
1
74F32
IC3
2
TMS4464
U10, U11

C64-sram full pinout design files

The KiCad project lives in the jamarju/c64-sram repository on GitHub; these links point at the commit this page was built from.

C64-sram full pinout: common questions

How big is the C64-sram full pinout PCB?

The C64-sram full pinout measures 26.7 × 34.9 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the C64-sram full pinout?

5 components, from 4 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 C64-sram full pinout design files?

From the jamarju/c64-sram repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the C64-sram full pinout design in my own project?

The repository has no license, so all rights stay with jamarju. Use it as a reference, and ask the author before reusing the design.

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