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Description

The A/T89C51AC2 is a high performance Flash version of the 80C51 single chip 8-bit microcontrollers. It contains a 32 KB Flash memory block for program and data.

Features

? 80C51 Core Architecture

? 256 Bytes of On-chip RAM

? 1 KB of On-chip XRAM

? 32 KB of On-chip Flash Memory

– Data Retention: 10 Years at 85°C Read/Write Cycle: 10K

? 2 KB of On-chip Flash for Bootloader

? 2 KB of On-chip EEPROM Read/Write Cycle: 100K

? 14-sources 4-level Interrupts

? Three 16-bit Timers/Counters

? Full Duplex UART Compatible 80C51

? Maximum Crystal Frequency 40 MHz, in X2 Mode, 20 MHz (CPU Core, 20 MHz)

? Five Ports: 32 + 2 Digital I/O Lines

? Five-channel 16-bit PCA with:

– PWM (8-bit)

– High-speed Output

– Timer and Edge Capture

? Double Data Pointer

? 21-bit Watchdog Timer (7 Programmable Bits)

? 10-bit Resolution Analog to Digital Converter (ADC) with 8 Multiplexed Inputs

? On-chip Emulation Logic (Enhanced Hook System)

? Power Saving Modes:

– Idle Mode

– Power-down Mode

? Power Supply: 3V to 5.5V

? Temperature Range: Industrial (-40° to +85°C)

? Packages: VQFP44, PLCC44