List of ROM chips

(Most infos from the publicly available romref.txt file)


 * 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)=

=64KiB (8 bit)=

=128KiB (8 bit)=

=128KiB (16 bit)=

Use this for the system ROM.

=256KiB (8 bit)=

To add:

-- Fujitsu

4M  256k x 16 / 512k x 8   MB834100 (40 pin) 4M  512k x 8               MB834000 (32 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 512K x 8               HN62314B/334B 512K x 8               HN62344B 512K x 8               HN62335B 512K x 8               HN62W335B

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

4Mbit                  uPD23C4000 40 pin  / 64 pin FP                            uPD23C4001 32 pin

--

Sharp 128k x 16              LH532048 256k x 8 / 128k x 16   LH532000 512k x 8               LH534700 -- Toshiba 512k x 8               TC534000 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

512k x 8 Fujitsu    MB83400 Toshiba    TC53400 Hitachi    HN62401 Mitsubishi 23C400 NEC        23C4000 OKI Sharp      LH534100 Sony