MASKROM

A Mask ROM is a type of read-only memory chip that is used in almost all SNES games. The Mask ROM contains the game binary. When dumped, a ROM image file is created. Since the game binaries are usually on Mask ROMs, the term "ROM" is synonymous with the dumped game binary, although this is not the technical term. Information on Mask ROM chips on the internet is very limited, so I will not claim that I have all the information correct. One of my main sources is bootgod's NES Cart DB.

UPD23C4013ACZ

Chip type: MASKROM

Part #: UPD23C4013ACZ

Size: 0x80000

Manufacturer: NEC

Date format: YYWWxxxxx

Variables: Full part #, Serial code, Date code

UPD23C8013BCZ

Chip type: MASKROM

Part #: UPD23C8013BCZ

Size: 0x100000

Manufacturer: NEC

Date format: YYWWxxxxx

Variables: Full part #, Serial code, Date code

LH538

Chip type: MASKROM

Part #: LH538

Size: 0x100000

Manufacturer: Sharp

Date format: YYWW x

Variables: Full part #, Serial code, Date code

LH537

Chip type: MASKROM

Part #: LH537

Size: 0x200000

Manufacturer: Sharp

Date format: YYWW x

Variables: Full part #, Serial code, Date code

LH536

Chip type: MASKROM

Part #: LH536

Size: 0x300000

Manufacturer: Sharp

Date format: YYWW x

Variables: Full part #, Serial code, Date code

LH535

Chip type: MASKROM

Part #: LH535

Size: 0x400000

Manufacturer: Sharp

Date format: YYWW x

Variables: Full part #, Serial code, Date code

LH534

Chip type: MASKROM

Part #: LH534

Size: 0x80000

Manufacturer: Sharp

Date format: YYWW x

Variables: Full part #, Serial code, Date code, Chip #

LH532

Chip type: MASKROM

Part #: LH532

Size: 0x40000

Manufacturer: Sharp

Date format: YYWW x

Variables: Full part #, Serial code, Date code, Chip #

LHMN5T

Chip type: MASKROM

Part #: LHMN5T

Size: 0x400000

Manufacturer: Sharp

Date format: YYWW x

Variables: Full part #, Serial code, Date code

MB838000

Chip type: MASKROM

Part #: MB838000

Size: 0x80000

Manufacturer: Fujitsu

Date format: YYWW xxx

Variables: Full part #, Serial code, Date code, Chip #

M531610D

Chip type: MASKROM

Part #: M531610D

Size: 0x100000

Manufacturer: Oki Electric Industry Co.,Ltd.

Date format: YWWxxxx

Variables: Full part #, Serial code, Date code

TC538003AP

Chip type: MASKROM

Part #: TC538003AP

Size: 0x80000

Manufacturer: Toshiba

Date format: YYWW xxx

Variables: Full part #, Serial code, Date code, Chip #, unknown label

TC5316003CF

Chip type: MASKROM

Part #: TC5316003CF

Size: 0x100000

Manufacturer: Toshiba

Date format: YYWW xxx

Variables: Serial code, Date code, Chip #, unknown label

CXK384002

Chip type: MASKROM

Part #: CXK384002

Size: 0x80000

Manufacturer: Sony

Date format: YMxxx

Variables: Full part #, Serial code, Date code, unknown label

KM23C4001B

Chip type: MASKROM

Part #: KM23C4001B

Size: 0x40000

Manufacturer: Samsung

Variables: Serial code, Chip #

KM23C8001A

Chip type: MASKROM

Part #: KM23C8001A

Size: 0x80000

Manufacturer: Samsung

Variables: Serial code, Chip #

HN62318DP70

Chip type: MASKROM

Part #: HN62318DP70

Size: 0x80000

Manufacturer: Hitachi

Date format: YMW x

Variables: Serial code, Date code, Game title

Majesco type #1

Chip type: MASKROM

Part #: Majesco type #1

Size: 0x200000

Manufacturer: Majesco

Variables: Serial code, Game title

MX23C8001-12

Chip type: MASKROM

Part #: MX23C8001-12

Size: 0x80000

Manufacturer: Macronix International

Date format: xYYWW-x

Variables: Serial code, Date code, unknown label

MX23C3201-12

Chip type: MASKROM

Part #: MX23C3201-12

Size: 0x200000

Manufacturer: Macronix International

Date format: xYYWW-x

Variables: Serial code, Date code, unknown label

MX23C3202-11

Chip type: MASKROM

Part #: MX23C3202-11

Size: 0x200000

Manufacturer: Macronix International

Date format: xYYWW-x

Variables: Serial code, Date code, unknown label

N-4013BGW-J03

Chip type: MASKROM

Part #: N-4013BGW-J03

Size: 0x40000

Manufacturer: NEC

Date format: YYWWxxxxx

Variables: Serial code, Date code, Chip #

N-8013AGW-J04

Chip type: MASKROM

Part #: N-8013AGW-J04

Size: 0x80000

Manufacturer: NEC

Date format: YYWWxxxxx

Variables: Serial code, Date code

N-8013BGW-J05

Chip type: MASKROM

Part #: N-8013BGW-J05

Size: 0x80000

Manufacturer: NEC

Date format: YYWWxxxxx

Variables: Serial code, Date code, Chip #

CAT438010

Chip type: MASKROM

Part #: CAT438010

Size: 0x80000

Manufacturer: Oki Electric Industry Co.,Ltd.

Date format: xYWW xx xx

Variables: Full part #, Serial code, Date code, Chip #