8-Bit MCU, 20MHz, 32KB Flash, 4KB RAM, 57 I/O, 64-Pin PQFP
8-Bit MCU, 20MHz, 32KB Flash, 4KB RAM, 44-Pin PQFP
8-Bit MCU, 20MHz, 32KB Flash, 4KB RAM, 48-Pin PQFP
