File:Acorn 8K RAM and 8K PROM Eurocard circuit diagram (200,003).png
Summary
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Acorn Computers' circuit diagram of the 8K RAM + 8K PROM Eurocard, drawing 200,003/C, issue 1 dated May 1979, drawn by CBT. Sixteen 2114 RAM positions (IC1–IC16), two 2716/2732 ROM sockets (IC17, IC18), 74LS42 decoders (IC19, IC24), 81LS95 buffers (IC21, IC23), INS8208 data buffer (IC22) and the RAM and PROM select links. Used as the memory and BASIC ROM card of the Acorn System 2 and 3.
Source
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Ben Harris's Acorn archive, https://bjh21.me.uk/acorn/circuits/0200,003-1.tiff (listed on https://bjh21.me.uk/acorn/circuits/circuits.html), retrieved 2026-10-01. Converted from a 1-bit TIFF to PNG and reduced to 3500 pixels wide.
Author
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Acorn Computers Ltd. Scan by Ben Harris.
Licence
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Copyright 1979 Acorn Computers Ltd. Hosted for preservation and repair reference.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 09:14, 1 October 2026 | | 3,500 × 2,474 (115 KB) | Josh (talk | contribs) | Acorn Eurocard circuit diagram from Ben Harris's archive |
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