8-Bit RISC MCU, 4MHz, 2KB EPROM, SSOP, 20 I/O, 5.5V
8-Bit MCU, 4MHz, 2KB EPROM, 20 I/O, PDIP
8-Bit MCU, 4MHz, 2KB EPROM, 20 I/O, 28SOIC
8-Bit 4MHz RISC MCU, EPROM, 2KB, 20 I/O, PDIP-28
