* 80C32/8XC52/8XC54/8XC58
* 80C51FA/8XC51FA/8XC51FB/8XC51FC
* 80C51RA+/8XC51RA+/8XC51RB+/8XC51RC+/8XC51RD+ For applications requiring 4K ROM/EPROM, see the 8.

requiring 4K ROM/EPROM, see the 8XC51/80C31 8-bit CMOS (low voltage, low power, and high speed) microcontroller families.

Three different Single-Chip 8-Bit Microcontroller families are presented in this datasheet: FEATURES
* 80C32/8XC52/8XC54/8XC58
* 80C51FA/8XC51FA/8XC51FB/8XC51FC
* 80C51RA+/8XC51RA+/8XC51RB+/8XC51RC+/8XC51RD+ For applications requiring 4.

P80C51BH

P80C51X2

P80C521

P80C528

P80C52X2

P80C541

P80C54X2

P80C552

P80C557E4

P80C557E6

P80C557E8

P80C562

P80C58X2