FLASH 23C1000
Adapter board to use a flash chip for the system rom in a NEC PC-8300.
PCB
BOM
File:FlashROM 8300 GLS29EE010 TSOP BOM Mouser.pdf
Source
Mask rom data sheet
Flash EEPROM chip GLS29EE010, PLCC32 and TSOP32 8x20mm
Alternate flash chip SST39SF010, PLCC32 and TSOP32 8x14mm