The STC15W202S is an 8-bit microcontroller with built in flash memory that is manufactured by STC.It is housed in a SOP-16_150mil package that is compliant with RoHS standards and features the 8052 architecture with up to 256K of program memory, 8K of shared RAM and up to 2048 bytes of data memory.The STC15W202S also has a variety of built-in peripherals such as a UART, PWM, SPI, Timers, Comparator, ADC ,DAC, and I2C interface. It operates at a maximum clock speed of 48MHz and is powered by a 5V power supply. The STC15W202S is suitable for a variety of industrial, consumer, and automotive applications.