The STC15F101W-35I-SOP-8 is a microcontroller integrated circuit manufactured by STC, or Sino-Tech Corporation. It is an 8-pin surface mount IC with STC SOIC-8_150mil RoHS casing. This IC is a single-chip 8/15/20/30-Bits 8-bit High-Speed Microcontroller containing power-saving technology. The STC15F101W-35I-SOP-8 features an 8-bit high-speed RISC CPU, 128 bytes directly addressable RAM, 1K for fixed-length instruction words, up to 1K bytes of external program memory, and 32 programmable input/output ports. It also includes features such as fivework timers/counters, six high-speed I/O ports, and an 8-channel 10-bit A/D converter. This part is RoHS compliant, and is designed for use in automotive, industrial, office automation, and consumer electronics applications.