8-Bit 4MHz RISC MCU, 7KB OTP, 33 I/O, PDIP-40
8-Bit MCU, 4MHz, 7KB OTP, 33 I/O, I2C, SPI, UART, PDIP
8-Bit 4MHz PIC MCU, 3.5KB OTP, 33 I/O, PDIP
8-Bit 4MHz PIC MCU, OTP, PDIP18