EPROMs: Difference between revisions
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(Created page with "{{To do|Random notes I'm taking while dumping EPROMs. Will be a proper article in the future.}} == Common EPROM types == {| class="wikitable" ! Type ! Size ! Size (hex) ! Nam...") |
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| rowspan=" | | rowspan="5" | 27C1000<br>(non-JEDEC) | ||
| rowspan=" | | rowspan="5" | 128 KB | ||
| rowspan=" | | rowspan="5" | 0x20000 | ||
| M27C1000 || 2086 || ST Micro | | M27C1000 || 2086 || ST Micro | ||
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|- | |- | ||
| HN27C301 || - || Hitachi | | HN27C301 || - || Hitachi | ||
|- | |- | ||
| D27C1000 || - || NEC | | D27C1000 || - || NEC | ||
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| rowspan="4" | 512 KB | | rowspan="4" | 512 KB | ||
| rowspan="4" | 0x80000 | | rowspan="4" | 0x80000 | ||
| M27C4001 || 2041 || ST Micro | | M27C4001 [[Media:M27C4001 datasheet.pdf|{{Icon|pdf}}]] || 2041 || ST Micro | ||
|- | |- | ||
| TC574000 || 988C || Toshiba | | TC574000 || 988C || Toshiba | ||
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| D27C4001 || 10C8 || NEC | | D27C4001 || 10C8 || NEC | ||
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=== 27C1000/27C1001 === | |||
There are two types of 128KB/1Mbit EPROMs — 27C1001 and the non-JEDEC compliant 27C1000. Their pinouts have the A16 and output enable pins switched. An adapter/jumper wire is needed on some EPROM dumpers. The switched pins are marked red in the pinout pictures below. | |||
=== Pinouts === | |||
<gallery mode=nolines widths=240> | |||
M27C1000 pinout.png | |||
M27C1001 pinout.png | |||
M27C2001 pinout.png | |||
M27C4001 pinout.png | |||
</gallery> | |||
Latest revision as of 17:09, July 7, 2023
To do
Random notes I'm taking while dumping EPROMs. Will be a proper article in the future.
Common EPROM types
27C1000/27C1001
There are two types of 128KB/1Mbit EPROMs — 27C1001 and the non-JEDEC compliant 27C1000. Their pinouts have the A16 and output enable pins switched. An adapter/jumper wire is needed on some EPROM dumpers. The switched pins are marked red in the pinout pictures below.
