The STC15W201S with STC SOP-8_150mil RoHS is a 8-Bit Microcontroller manufactured by STC. It features a 8-bit CPU, 16 Kbytes Flash memory, 1 Kbyte SRAM, 32 I/Os, 4 independent 16 bit-counter/timers, and built-incomparators. It has three low power consumption modes, battery backup operation, and multiple interrupt sources with up to four interrupt levels. It also has in-system programming, thorough debug features with the built-in monitor program, and EMC interference immunity. The RoHS certification ensures the product meets all appropriate environmental regulations.