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