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P89V52X2

8-bit 80C51 low power 8 kB flash microcontroller with 256 B

RAM, 192 B data EEPROM

Rev. 01 鈥?7 June 2007

Preliminary data sheet

1. General description

The P89V52X2 is an 80C51 microcontroller with 8 kB flash, 256 B of data RAM, and

192 B of data EEPROM. This device is designed to be a drop in and software compatible

replacement for the P87C52, P87C52X2, P89C52, and P89C52X2 devices.

2. Features

2.1 Principal features

0 MHz to 33 MHz operating frequency in 12脳 mode, 20 MHz in 6脳 mode

8 kB of on-chip flash user code memory

256 B of RAM

Enhanced UART

Three 16-bit timers/counters

Four 8-bit I/O ports

Supports 12-clock (default) or 6-clock mode selection via software or In-Circuit

Programming (ICP)

DIP40, PLCC44, and LQFP44 packages

Six interrupt sources with four priority levels

Second DPTR register

2.2 Additional features

Low EMI mode (ALE inhibit)

Power-down mode with external interrupt wake-up

Idle mode

Extended temperature range

Three security bits

Programmable clock-out pin

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