The STC11F16XE-35I-PDIP40 is an 8-bit single-chip microcontroller manufactured by STC that is designed for a wide variety of embedded control applications. It has a STC PDIP-40 package and is RoHS compliant. It has on-chip modules include an CPU core, RAM, ROM, Timer/Counters, Watchdog Timer, SCA, UART, 2-channel 8-bit A/D Converters, and up to two SPI/I2C serial buses. It features a wide operating voltage range of 5V to 3.6V and a maximum clock frequency of 20 MHz. It is suitable for low-cost, embedded control applications such as consumer electronics, motor control and home appliances.