- 80C51
80C51 8-bit microcontroller family 4K/128 OTP/ROM/ROMless voltage 2.7V.5.5V, power, high speed - 80C517
8-Bit CMOS Single-Chip Microcontroller - 80C517A
8-Bit CMOS Single-Chip Microcontroller - 80C51BH
CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER - 80C51BH-1/BQA
8-Bit Microcontroller - 80C51BH/BQA
8-Bit Microcontroller - 80C51BHP
CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER - 80C51FA
EVENT-CONTROL CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER - 80C51FAMILY
80C51 8-bit microcontroller family - 80C51GB
CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER - 80C51RA
8-bit CMOS voltage, power high speed) microcontroller families - 80C51RA+
80C51 8-bit microcontroller family 8K-4K/256-1K OTP/ROM/ROMless, low voltage (2.7V-5.5V), low power, high speed (33 MHz) - 80C51RX2
From datasheet system - 80C51SL-BG
KEYBOARD CONTROLLER - 80C51X2
80C51 8-bit microcontroller family 4K/8K/16K/32K ROM/OTP 128B/256B voltage power, high speed 30/33