8KB 80C51 Microcontroller, 33MHz, 8b Data Bus, 256B RAM, 5.5V
Microcontroller, 8-Bit, UVPROM, 8051 CPU, 33MHz, CMOS, PDIP40,
8-bit MCU, 80C51, 33MHz, 8KB OTP, 256B RAM, 32 I/O, DIP
