C8051F231 25 MIPS, 8 kB Flash, 32-Pin Mixed-Signal.
Silicon Laboratories
C8051F231 - 8K ISP FLASH MCU
C8051F231 25 MIPS, 8 kB Flash, 32-Pin Mixed-Signal MCU Analog Peripherals Two comparators High-Speed 8051 µC Core - - Programmable hysteresis Conf.