The AT89C51CC03C-SLSUM is a Flash-based 8-bit microcontroller from Microchip. It is part of the 8051 family of microcontrollers, which is known for being highly versatile and suitable for a variety of applications. The AT89C51CC03C-SLSUM features 32K byte Flash memory, 256 byte RAM, two 16-bit timers, one 8-bit timer, Brown-out Reset (BOR), Power-On Reset (POR), power saving sleep and idle modes, 4 interrupt sources and 4 serial I/O ports. The parts are available in a 44-pin QFP and with an external clock speed of up to 24 MHz. The chip also has Power-Fail Protection to allow low-power operations. This component is an ideal choice for developing products that require fast, low-power performance.