The STC89LE516RD+ is a high-performance 8-bit microcontroller with an embedded 16K byte Flash memory manufactured by STC. It is an 8051 derivative with a LQFP-44_10x10x08P RoHS package, and is an ideal choice for a wide range of applications. It is equipped with 32 I/O ports, two independent UARTs, three 16-bit timer/counters, SPI, PCA, I2C bus, WDT, and 10-bit ADC. The STC89LE516RD+ microcontroller also has a full set of power management functions, such as Supply Voltage Monitoring Circuit (SVMC), power-on reset (POR) and brown-out reset (BOR).The STC89LE516RD+ provides flexibility and high performance for the development of a variety of interconnected embedded systems, such as remote control, security systems, educational products, automotive/industrial control and medical instruments. The STC89LE516RD+ is RoHS and WEEE compliant, and is manufactured to strict quality standards, ensuring the best quality product available.