The STC8F2K08S2 is an 8-bit microcontroller with STC TSSOP-20 RoHS package manufactured by STC.This device is based on the STC8 8051 CPU with a 12-stage pipeline architecture that supports 8 bits/12 bits of code/data bus widths. It operates at 80-80MHz frequency and offers 0-273KB of on-chip Flash ROM, 8-8KB SRAM and 384 bytes of Special Function Registers. Moreover, the STC8F2K08S2 features 4 Timer/Counters, 6 channel 16-bit PWM, 6 serial channels (UART, I²C, SPI, PCA), 4 channel 10-bit A/D Converter and multiple interrupt sources. The microcontroller has an operating voltage range from 2.2V to 5.5V and has built-in EMI frequency synthesis for low-radiation levels.