The STC90C516AD-40I-LQFP44 is an integrated circuit designed by STC. It is a microcontroller-based integrated circuit based on the 8-bit high-performance CPU STC90C516. It is a 44-pin Low-profile Quad Flat Package (LQFP) with lead-free components. It has 10x10x08P physical dimensions and is RoHS compliant. The device features an 8K ROM, 128 bytes of RAM, 2 USARTs, 4 8-bit timers, 4 PWMs, and on-chip analog comparator. It is used for high-performance, cost-effective control applications and provides comprehensive peripherals and single-chip solutions with low power consumption.