M29W640 SD007 48BALL-64M
M29W640 - 4MB
Recommended 3.3V to erase/program.
Originally purchased as a “Shantae”.
If you install a CR2032 coin cell battery, the battery will only last about 1 year as the cart consumes about 19uA for it’s data retention. You also need to change the solder bridge from “N” to “Y”.
PCB Text: SD007_48BALL-64M