20-Pin SOP Microcontroller, 4.4MHz, 2KB ROM, Surface Mount
20-Pin SOP Lead-Frame SMT Microcontroller
MCU 4-Bit 720 CISC 4KB ROM 3.3V/5V 20-Pin SOP
MCU 4-Bit 720 CISC 2KB ROM 3.3V/5V 20-Pin SOP