DATAMAN 48 and Atmel AT27C512R...not working...

[brianj]

Hello,
I have a Dataman 48 and I'm trying to read/program an ATMEL AT27C512R eprom...it says it's a supported device in the list, but it won't connect to it...it keeps saying incompatible chip due to number of pins. It's expecting to see a 28-pin device, but I have a 32-pin PLCC package. I'm using the PLCC to DIP adapter, but it wont work...please advise.

Thank you.

Brian

[Dataman (Neil Parker)]

Hello brianj,

It sounds as though you have the wrong adaptor socket.

Devices under 1Mbit require a PLCC32 to DIL28 adaptor. Devices 1Mbit or larger require a PLCC32 to DIL32 adaptor.

Please make sure that you have the DIL28/PLCC32 ZIF EPROM or equivalent adaptor.

Regards
Neil Parker
Dataman Programmers