8-Bit 4MHz RISC MCU, I2C/SPI, 3.5KB OTP, SSOP-28
8-Bit 4MHz PIC MCU, 3.5KB OTP, 22 I/O, I2C/SPI, DIP
8-Bit 4MHz PIC MCU, 3.5KB OTP, SOIC-28, I2C/SPI