The MS51FB9AE with NUVOTON TSSOP-20 RoHS is an integrated circuit produced by Nuvoton. It is an 8-bit single-chip microcontroller that features USB 2.0, CAN (Controller Area Network), and I2C support. It has a mode from 2 up to 48-pin packages, including the 20-pin TSSOP package. It has a 32K Bytes Flash memory, 6K Bytes SRAM, and integrated analog circuitry, such as adc, comparator, fast delta-sigma modulator, etc. It has 6 Timers/Counters, 8-ch PWM, 4-ch 10-bit ADC, and 2K-byte E2PROM. It also has 12 external interrupt/wake-up sources and numerous peripherals that provide users with lots of flexibility in their design. The MS51FB9AE with NUVOTON TSSOP-20 RoHS is compliant with the RoHS standard for hazardous materials used in electrical and electronic products.