FLASH 23C1000

Adapter board to use a flash chip for the system rom in a NEC PC-8300.

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PCB

https://oshpark.com/shared_projects/Bx4J3uAW

Mask rom data sheet

File:UPD23C1000A.pdf

Flash chip SST39SF010, PLCC32 and TSOP32 8x14mm

https://www.digikey.com/products/en/integrated-circuits-ics/memory/774?k=SST39SF010&k=&pkeyword=SST39SF010&sv=0&pv7=2&pv7=17&pv7=6&sf=0&FV=-8%7C774&quantity=&ColumnSort=0&page=1&stock=1&nstock=1&pageSize=25

Flash chip GLS29EE010, PLCC32 and TSOP32 8x20mm

https://mou.sr/39tR5zu