Atmel 8952 or AT89S52 is a low power and high-performance CMOS 8-bit microcontroller. This microcontroller is manufactured with Atmel�s high-density non-volatile memory technology and compatible with the 80C51 instruction set. It has 8K in-system flash memory, which allows this device to reprogram. Being cost-effective and highly flexible, is used in a embedded application.

Specification:

• Operating voltage: 4v to 5.5V
• In-system flash memory: 8K byte
• Internal RAM: 256 x 8-bit
• Programmable I/O lines: 32
• Timer and Counters: 3 16-bit
• Fully static operation: 0 to 33 MHz
• Interrupt sources: 8