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At89s8252
This document describes the features and specifications of the AT89S8252 microcontroller. It has 8K bytes of flash memory, 2K bytes of EEPROM, and 256 bytes of RAM. It supports SPI serial interfacing and has 32 I/O lines, three timers, interrupts, and low power modes. The flash can be reprogrammed in-system through an SPI interface or programmer to update code.
