8-Bit Microcontroller, 4.2MHz, OTPROM, 22 I/O, ADC, PDIP28
8-Bit Microcontroller, 4.2MHz, OTPROM, CMOS, DIP-28
8-Bit MCU, 4.2MHz, OTPROM, 22 I/O, 256B RAM, ADC, DIP-28