Flash

Flash chips allow for saving of games without the need for a battery. SNES era flash chips are pretty unstable, and it is not uncommon that games written to flash chips are corrupted.

AM29F010

Chip type: Flash

Part #: AM29F010

Size: 0x10000

Manufacturer: AMD

Date format: YYWWxxx x

Variables: Full part #, Date code

LH28F020SU

Chip type: Flash

Part #: LH28F020SU

Size: 0x20000

Manufacturer: Sharp

Date format: YYWW xxx

Variables: Full part #, Date code

29F1601MC-11C3

Chip type: Flash

Part #: 29F1601MC-11C3

Size: 0x100000

Manufacturer: Macronix

Date format: xYYWW

Variables: Date code, unknown label