1、The field of use has been extensive, such as smart meters, real-time industrial control, communication equipment, navigation systems, household appliances, etc. 2、The volume is relatively small, and the internal chip is used as a computer system. The structure is simple, but the function is perfect, it is very convenient to use, and can be applied in a modular manner. 3、Strong data processing and computing power, can be applied in various environments, and has strong control ability. 4、The STC89C52 uses the MCS-51 core, but has made a lot of improvements to make the chip have the features that the traditional 51 microcontroller does not have. 5、On a single chip, with a smart 8-bit CPU and in-system programmable Flash, the STC89C52 provides a highly flexible, ultra-efficient solution for many embedded control applications. 6、The STC89X52 can be reduced to 0Hz static logic operation and supports two software selectable power save modes. In idle mode, the CPU stops working, allowing RAM, timer/counter, serial port, and interrupt to continue to work. In the power-down protection mode, the RAM contents are saved, the oscillator is blocked, and all operations of the microcontroller are stopped until the next interrupt or hardware reset. The maximum operating frequency is 35MHz, and 6T/12T is optional. 1 x Development Board2 x Pin Header Item Type:STC89C52RCFlash:8KBRAM:512BI/O:32bitEEPROM:4KBReset Circuit:MAX810Timers/Counters:3 x 16bitExternal Interrupts:4Interrupt Structure:7 Vector 4 Levels