Here is a guide on how to use PRG-056 GQ-4X V4 WILLEM Programmer to read and write MBM27256 chip.
Procedures:
Put MBM27256 chip on PRG-056 GQ-4X V4 WILLEM programmer,the connect to PC
Run GQ-4X software,click “Device”–>”Device list”
Input “27256” in search,then select “MBM27256”
Click “Select”
It is able to click the button show on picture to show MBM27256 detail:
Name:MBM27256
Class:27256
MFG:FUJITSU
ID:0402(Hex)
Code Size:32768 bytes
Data Size:0 bytes
Speed:5
Vcc:5V
Vpp:12.7V
WriteVcc:5.5V
BlankVcc:5V
ReadVpp:Not set or invalid
Click “Read” button
It will prompt you “Read completed” in message windows
After then you are available to switch to Buffer tag to edit the data,then just click “Write” this modified file into the MBM27256 chip
Done!
