This page lists equivalent ROM chips. Be careful about the speed.
- Mask ROMs aren't reprogrammable. They're originals from SNK in most cases.
- EPROMs are erasable by UV light.
- EEPROMs and flash are similar, and can be reprogrammed electrically.
32KiB (8 bit)
| Reference
|
Manufacturer
|
Type
|
Pin count
|
Pinout
|
| 27C256 |
* |
EPROM |
28 |
|
| MB83256 |
Fujitsu |
Mask |
28 |
|
| LH53259 |
Sharp |
Mask |
28 |
|
| TC53257 |
Toshiba |
Mask |
28 |
|
64KiB (8 bit)
| Reference
|
Manufacturer
|
Type
|
Pin count
|
Pinout
|
| 27C512 |
* |
EPROM |
28 |
|
| MB83512 |
Fujitsu |
Mask |
28 |
|
| LH53517 |
Sharp |
Mask |
28 |
|
128KiB (8 bit)
| Reference
|
Manufacturer
|
Type
|
Pin count
|
Pinout
|
| 27C010 |
* |
EPROM |
32 |
|
| 27C101 |
* |
EPROM |
32 |
|
| 27C301 |
* |
EPROM |
32 |
|
| 27C1000 |
* |
|
|
|
| MB831000 |
Fujitsu |
|
32 |
|
| HN62321 |
Hitachi |
|
|
|
| uPD23C1000 |
NEC |
|
28 |
|
| uPD23C1001 |
NEC |
|
32 |
|
| uPD23C1010 |
NEC |
|
28 |
|
| LH530800 |
Sharp |
|
|
|
| LH531000 |
Sharp |
|
|
|
| TC531000 |
Toshiba |
Mask |
28 |
|
| TC531001 |
Toshiba |
Mask |
32 |
|
128KiB (16 bit)
Use this for the system ROM.
| Reference
|
Manufacturer
|
Type
|
Pin count
|
Pinout
|
| 23C1024 |
* |
|
|
|
| TC531024 |
Toshiba |
|
40 |
|
| TC571024D |
Toshiba |
EPROM |
40 |
|
| LH531024 |
Sharp |
|
|
|
256KiB (8 bit)
| Reference
|
Manufacturer
|
Type
|
Pin count
|
Pinout
|
| 27C020 |
* |
|
|
|
| MB832000 |
Fujitsu |
|
|
|
| HN62302B |
Hitachi |
|
|
|
| uPD23C2000 |
NEC |
|
40 |
|
| uPD23C2001 |
NEC |
|
32 |
|
| LH532100 |
Sharp |
|
|
|
512KiB (8 bit)
| Reference
|
Manufacturer
|
Type
|
Pin count
|
Pinout
|
| 23C400 |
* |
|
|
|
| MB834000 |
Fujitsu |
|
32 |
|
| HN62401 |
Hitachi |
|
|
|
| HN62314B |
Hitachi |
|
|
|
| HN62344B |
Hitachi |
|
|
|
| HN62335B |
Hitachi |
|
|
|
| TC534000 |
Toshiba |
|
|
|
| uPD23C4000 |
NEC |
|
|
|
| LH534700 |
Sharp |
|
|
|
| LH534100 |
Sharp |
|
|
|
1MiB (16 bit)
| Reference
|
Manufacturer
|
Type
|
Pin count
|
Pinout
|
| 27C160 |
* |
EPROM |
42 |
|
| TC5316200AP |
Toshiba |
Mask |
42 |
|
2MiB (16 bit)
| Reference
|
Manufacturer
|
Type
|
Pin count
|
Pinout
|
| 27C322 |
* |
EPROM |
42 |
|
| KM23C32000 |
Samsung |
Mask |
42 |
|
To add:
------------------------------------------------------
Fujitsu
4M 256k x 16 / 512k x 8 MB834100 (40 pin)
4M 256k x 16 / 512k x 8 MB834200 (40 pin)
------------------------------------------------------
Hitachi
EPROM
27512
27C1024H
27C101A
27C301A non-jedec
27C4000
27C4096
27C4001
Mask ROM
--------
Hitachi
2M 128K x 16 / 256K x 8 HN62412/422
128K x 16 HN62442B
4M 256K x 16 / 512K x 8 HN62414/434
256K x 16 / 512K x 8 HN62415
256K x 16 / 512K x 8 HN62W415
256K x 16 / 512K x 8 HN62444
256K x 16 HN62444B
256K x 16 HN62444BN
8M 512K x 16 / 1M x 8 HN62418/428
512K x 16 / 1M x 8 HN62W428
512K x 16 / 1M x 8 HN62438
512K x 16 / 1M x 8 HN62448
512K x 16 / 1M x 8 HN62438N
512K x 16 / 1M x 8 HN62448N
1M x 8 HN62318B/328B
1M x 8 HN62W328B
1M x 8 HN62338B
16M 1M x 16 / 2m x 8 HN624116
1M x 16 / 2m x 8 HN624W116
1M x 16 / 2m x 8 HN624316
1M x 16 / 2m x 8 HN624316N
------------------------------------------------------
NEC
uPD23C4001 32 pin
------------------------------------------------------
Sharp
128k x 16 LH532048
256k x 8 / 128k x 16 LH532000
------------------------------------------------------
Toshiba
512k x 8 / 256k x 16 TC534200
1M x 8 / 512k x 16 TC538000
1M x 8 / 512k x 16 TC538200
2M x 8 / 1M x 16 TC5316200
------------------------------------------------------
EPROM Cross Reference
---------------------
32kx8 64kx8 128kx8 128kx8 64kx16
AMD 27C256 27C512 27C010 27C1024
Fujitsu 27C256 27C512 27C1001 27C1000 27C1024
Hitachi 27C256 27C101 27C301 27C1024
Intel 27C256 27C010 27C210
Mitsubishi 27C256 27C512 27C101 27C100 27C102
NEC 27C256 27C512 27C1001 27C1000 27C1024
OKI 27256
TI 27C256 27C512 27C010 27C210
Toshiba TC57256 TC57512 TC571000 TC571001 TC571024
256kx8 128k x 16 / 256k x 8
AMD 27C020 27C2048
NEC 27C2001
512kx8 512kx8/256kx16
AMD
Fujitsu 27C4000/1 27C4096
Hitachi
Intel
Mitsubishi
NEC 27C4001
OKI
TI
Toshiba TC574000 TC574200
Mask ROM Cross Reference
------------------------
128k x 8 128k x 8
Fujitsu MB831000
Toshiba TC531000 TC531001
Hitachi HN62321/31 HN62321A/31A
Mitsubishi 231000
NEC 23C1000 23C1001
OKI 531000
Sharp LH531000
Sony 381000
64k x 16 64k x 16 512k x 8 / 256k x 16
Toshiba TC531024 TC53H1024 TC534200
Fujitsu MB834100
Hitachi HN62404
Mitsubishi 23C400P
NEC 23C1024
OKI
Sharp 534000
1m x 8 / 512k x 16 2m x 8 / 1m x 16
Fujitsu
Toshiba TC538200 TC5316200
Hitachi HN62801 HN621601
Mitsubishi 23C800P 231600P
NEC 23C8000 23C1600
OKI
Sharp 538100 531601
Most infos come from the publicly available romref.txt file.
