MSS-2235S is an 8-bit 8051 microcontroller from the Ninigi series. It features up to 8kB of on-chip ROM, 512 bytes of SRAM, 4KB of EEPROM, 4-channel 16-bit timer/counter, 3-channel 16-bit PWM, SPI and I2C serial interfaces, 8-bit ADC and 8-bit DAC, plus a Low-Power/Idle Mode to help conserve power. The chip is designed to be used in industrial applications, where a combination of analog and digital capabilities are often required. The MSS-2235S is pin- and software-compatable with other 8051 microcontrollers from the Ninigi series.