File:Sinclair ZX Spectrum Issue 3 CPU IC2 pinout.png
Summary
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Crop of Sinclair's ZX Spectrum Issue 3 circuit diagram showing the CPU, IC2, with its pin numbers: CLK on pin 6, INT 16, IOREQ 20, MREQ 19, RD 21, WR 22, BUSAK 23, HALT 18, M1 27, RFSH 28, Vcc 11, NMI 17, WAIT 24, BUSREQ 25, RESET 26 and GND 29, with the address and data pins. Cropped at full resolution for Sinclair ZX Spectrum Z80 CPU Replacement.
Source
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Cropped from File:Sinclair ZX Spectrum Issue 3 circuit diagram.png, itself a copy of "ZX Spectrum Issue 3 - Schaltbild.gif" in the Sinclair ZX Computers Archive.
Author
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Sinclair Research Ltd
Licence
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Copyright Sinclair Research Ltd. Not freely licensed. Hosted for preservation and repair reference.
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 11:06, 25 October 2026 | | 660 × 380 (25 KB) | Josh (talk | contribs) | Image for the Spectrum Z80 replacement guide |
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