P87C51FC1SF76
P87C51FC24SF76
P87C51FC33SF76
P87C51FC-4A,512
P87C51FC-4B
P87C51MB2BA/02,529
P87C51MC2BA/02,529
P87C51MC2BA/02-S
P87C51RA
P87C51RA+1A