P89V52X2 8-bit 80C51 low power 8 kB flash microcontroller with 256 B RAM, 192 B data EEPROM

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.

Features

2.1 Principal features

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