AVR-Chat

Thanks alot for the fast reply. I managed to buy a discarded portable hand-held device (I think it is for entering of PINs) real cheap. My intention is to savage whatever is in there. The main item I'm looking at is the 2 X 16 LCD panel (no back light). But I spotted this chip on the PCB. Thought if I can make use of it, I will buy some more. It cost about USD 3.80 per piece and it is considered cheap even for the LCD itself. In singapore, the same LCD cost about USD 7.80 when new.
 
cheers,
Davis

David VanHorn <dvanhorn@cedar.net> wrote:
At 07:49 AM 12/26/2003 -0800, techy fellow wrote:
>Hi,
>
> 
>
>I know this thread is for AVR, but, I've no where to turn to. May I know whether the above 8051 chip can be re-programed ? I read the specs from Dallas website and it stated it is a EPROM (OTP). I guess not but, I just want to be sure.

OTP means One Time Programmable.

SOME 8051 variants can use an external bus, and you can then put an external eprom on, but that eats up most of the pins. 




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