AT89C2051 ROM extention

Thread Starter

hadeedunhaad

Joined Apr 22, 2011
24
hi all ,
Is it possible to extend the program memory (ROM) of AT89C2051 which comes with a default internal ROM of 2K ? I'm aware that in 8051 (40 pin) its possible to use an external ROM by the use of PSEN. But i cant find the same in 2051.
 

Thread Starter

hadeedunhaad

Joined Apr 22, 2011
24
yeah ! right now i'm doing with that.. though it looks little bit odd in the circuit due to its size when compared to other chips.
 
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