EPROMs - Revision history

Drx at 21:24, December 17, 2025

2025-12-17T21:24:31Z

← Older revision		Revision as of 21:24, December 17, 2025
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	~~{{To do\|Random notes I'm taking while dumping EPROMs. Will be a proper article in the future.}}~~

	== Common EPROM types ==		== Common EPROM types ==
	{\| class="wikitable"		{\| class="wikitable"

Drx at 17:09, July 7, 2023

2023-07-07T17:09:34Z

← Older revision		Revision as of 17:09, July 7, 2023
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	\|-		\|-
	\| rowspan="6" \| 27C1000<br>(non-JEDEC)		\| rowspan="5" \| 27C1000<br>(non-JEDEC)
	\| rowspan="6" \| 128 KB		\| rowspan="5" \| 128 KB
	\| rowspan="6" \| 0x20000		\| rowspan="5" \| 0x20000
	\| M27C1000 \|\| 2086 \|\| ST Micro		\| M27C1000 \|\| 2086 \|\| ST Micro
	\|-		\|-

Drx: Remove dupe, thanks to David Rysk for noticing

2023-07-07T17:08:22Z

Remove dupe, thanks to David Rysk for noticing

← Older revision		Revision as of 17:08, July 7, 2023
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	\|-		\|-
	\| HN27C301 \|\| - \|\| Hitachi		\| HN27C301 \|\| - \|\| Hitachi
	\|-
	~~\| TMS27C040 \|\| 9750 \|\| TI~~
	\|-		\|-
	\| D27C1000 \|\| - \|\| NEC		\| D27C1000 \|\| - \|\| NEC

Drx: Add pinouts, 27C1000/1001 info

2017-05-16T23:04:30Z

Add pinouts, 27C1000/1001 info

← Older revision		Revision as of 23:04, May 16, 2017
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	\|}		\|}

	== Pinouts ==		=== 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.
	\| <~~img src~~=~~"{{filepath:~~M27C4001 pinout.~~svg}}">~~
	\|-		=== Pinouts ===
	~~\| <center>27C4001~~</~~center~~>		<gallery mode=nolines widths=240>
	\|}		M27C1000 pinout.png
			M27C1001 pinout.png
			M27C2001 pinout.png
			M27C4001 pinout.png
			</gallery>

Drx: Add 27C4001 pinout

2017-05-16T21:21:51Z

Add 27C4001 pinout

← Older revision		Revision as of 21:21, May 16, 2017
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	\|-		\|-
	\| D27C4001 \|\| 10C8 \|\| NEC		\| D27C4001 \|\| 10C8 \|\| NEC
			\|}

			== Pinouts ==
			{\|
			\| <img src="{{filepath:M27C4001 pinout.svg}}">
			\|-
			\| <center>27C4001</center>
	\|}		\|}

Drx: Add M27C4001 datasheet

2017-05-16T19:56:05Z

Add M27C4001 datasheet

← Older revision		Revision as of 19:56, May 16, 2017
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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

Drx: 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..."

2017-05-16T19:45:13Z

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..."

New page

{{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)
! Name
! ID
! Manufacturer
|-
! colspan="6" | 8-bit

|-
| rowspan="6" | 27C1000<br>(non-JEDEC)
| rowspan="6" | 128 KB
| rowspan="6" | 0x20000
| M27C1000 || 2086 || ST Micro
|-
| HN27C101 || 0738 || Hitachi
|-
| HN27C301 || - || Hitachi
|-
| TMS27C040 || 9750 || TI
|-
| D27C1000 || - || NEC
|-
| uPD27C1000A || 1016 || NEC
|-
| 27C2001
| 256 KB
| 0x40000
| M27C2001 || 2061 || ST Micro
|-
| rowspan="4" | 27C4001
| rowspan="4" | 512 KB
| rowspan="4" | 0x80000
| M27C4001 || 2041 || ST Micro
|-
| TC574000 || 988C || Toshiba
|-
| TMS27C040 || 9750 || TI
|-
| D27C4001 || 10C8 || NEC
|}