The STC15W4K48S4-30I-LQFP48 is a single-chip 8-bit high performance microcontroller designed and manufactured by STC. It is an efficient, ultra-low power 8051 compatible microcontroller with 64K ROM, 1K RAM, 4KB RAM8KB for instruction flash. It also has up to 2KB data EEPROM. The device features in-system programming (ISP) and high speed I/O parallel interface. It comes with an STC LQFP-48_7x7x05P RoHS package and is RoHS compliant. The controller has 16 channels of 10-bit A/D converter, UARTs (2-way, 3-way, 4-way), SPI buses, external Interrupts and I2C controllers. It can be used in various applications including motor control, audio control, security systems, and embedded control.