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The AT89S53 is a low-power, high-performance CMOS 8-bit microcomputer with 12K bytes of downloadable Flash programmable and erasable read only memory.
AT89S53 Features
* Compatible with MCS-51™ Products
* 12K Bytes of In-System Reprogrammable Downloadable Flash Memory
* SPI Serial Interface for Program Downloading
* Endurance: 1,000 Write/Erase Cycles
* 4V to 6V Operating Range
* Fully Static Operation: 0 Hz to 24 MH