MicroThe STC12C5A56AD is an 8-bit single-chip central processor designed and manufactured by STC Micro. It is encapsulated in a low-power low-cost LQFP-44_10x10x08P RoHS package. It has a total of 32K Bytes of Flash Program Memory, 1K Byte of RAM, and two 16-bit programmable counter arrays which provide up to 91 input/output ports. The device is able to operate with a maximum frequency of 12 MHz and includes an oscillation circuit, watchdog timer, power-on reset circuit, hardware multiplier, and an 8-channel 12-bit A/D conversion module. The STC12C5A56AD is a versatile single-chip microprocessor suitable for use in applications such as industrial control, car security systems, and home appliance control.