ST72F63BK4M1 burn problem

Posted on August 12, 2008 at 08:02

This topic has been closed for replies.

tq_itAuthor

Associate II

Posted on August 12, 2008 at 08:02

I bought two batch of ST72F63BK4M1 and burned a program into them. Burn processes are both ok, but only one batch of the chips can work.

The workable chips have marks

''ST72F63BK4M1

M990H0427X

MALAYSIA''

The other batch of chips which cannot work have marks

''e4 B

72F63BK4M1

9900L VP

MYS 99 646''

Can anybody tell me how to fix this problem. I've bougth too many of them.

Thank you very much

Sign up