Philips Electronics
80C51 8-bit microcontroller family 4K/8K/16K/32K ROM/OTP 128B/256B RAM low voltage 2.7 to 5.5 V/ low power/ high speed 30/33 MHz
Intel
CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER WITH 16 KBYTES USER PROGRAMMABLE EPROM
Intel
CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
Intel
CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
Intel
CHMOS SINGLE-CHIP 8-BIT MICROCONTROLLER
Philips Electronics
80C51 8-bit microcontroller family 4K/128 OTP/ROM/ROMless, 8 channel 8 bit A/D, watchdog timer
Philips Electronics
80C51 8-bit microcontroller family 2K/64 OTP/ROM, low pin count