8-Bit MCU, 12MHz, 44-Pin PQCC, CMOS
8-Bit 8051 MCU, 12MHz, 44-Pin PQFP, 5V, Commercial
8-Bit MCU, 8051 CPU, 12MHz, 40-Pin DIP, 5V
8-Bit MCU, 40MHz, 44-Pin PQFP, 5V
8-Bit MCU, 8051 CPU, 24MHz, 44-Pin PQFP, 5V
