Quote from: electrosam on February 24, 2011, 12:58:54 AM
Sir, how P89V51RD2 FN or BN or FA chips differ ?
The FN and BN have different temperature ranges of operation.
FN: -40 C to +85 C
BN: 0 C to 70 C
The FA is a PLCC55 package (FN and BN are DIP40)