.The STC15W4K48S4-30I-LQFP32 microcontroller unit is a 48 KByte Flash, 4 KByte SRAM, 30 MHz single-chip 8051 microcontroller unit that is RoHS compliant, manufactured by STC. It features a 51 series LQFP (low-profile quad flat package) format with a 7x7 mm body. It is ideal for industrial control, vending machines, and automation, as well as home appliances and consumer electronics. The device comes with a comprehensive set of building blocks for USB, CAN, IrDA, and other applications. It features an advanced UART and advanced SPI for fast communication and high data transfer speeds. It also features low-power consumption for maximum battery life.