P8051AH 8-bit Microcontroller, 12 MHz, PDIP-40, AMD / Intel 8051AH

IC Microcontroller 64x8 FLASH 8051 CPU 40MHz CMOS, PLCC44 PHILIPS, P89C738ABA

1X W78E054B40PL Winbond 8051 8 Bit Microcontroller 16K 40MHz PLCC-44 MCU IC

PHILIPS P87LPC764BN MICROCONTROLLER MCU, 8BIT, 8051, 20MHZ, DIP-20 - FAST SHIP

1X W77E058A40PL NUVOTON 8051 8 Bit MCU 32KB Flash PLCC-44 Microcontroller 40MHz

(1 PC) W78E858P WINBOND Microcontroller 8-Bit FLASH 8051 CPU 40MHz CMOS PLCC44

W78E51B-40 Winbond 8051 Microcontroller 4KB MTP ROM 128B RAM 40MHz DIP-40

1X P8751BH INTEL 8051 Microcontroller IC 4K EPROM 128B RAM DIP-40