ATXMEGA256A3B中文资料爱特梅尔数据手册PDF规格书

特性 Features

• High-performance, Low-power AVR 8/16-bit XMEGA Microcontroller

• Non-volatile Program and Data Memories

– 256 KB of In-System Self-Programmable Flash

– 8 KB Boot Code Section with Independent Lock Bits

– 4 KB EEPROM

– 16 KB Internal SRAM

• Peripheral Features

– Four-channel DMA Controller with support for external requests

– Eight-channel Event System

– Seven 16-bit Timer/Counters

Four Timer/Counters with 4 Output Compare or Input Capture channels

Three Timer/Counters with 2 Output Compare or Input Capture channels

High-Resolution Extension on all Timer/Counters

Advanced Waveform Extension on one Timer/Counter

– Six USARTs

IrDA modulation/demodulation for one USART

– Two Two-Wire Interfaces with dual address match (I2C and SMBus compatible)

– Two SPI (Serial Peripheral Interface) peripherals

– AES and DES Crypto Engine

– 32-bit Real Time Counter with separate Oscillator and Battery Backup System

– Two Eight-channel, 12-bit, 2 Msps Analog to Digital Converters

– One Two-channel, 12-bit, 1 Msps Digital to Analog Converters

– Four Analog Comparators with Window compare function

– External Interrupts on all General Purpose I/O pins

– Programmable Watchdog Timer with Separate On-chip Ultra Low Power Oscillator

• Special Microcontroller Features

– Power-on Reset and Programmable Brown-out Detection

– Internal and External Clock Options with PLL

– Programmable Multi-level Interrupt Controller

– Sleep Modes: Idle, Power-down, Standby, Power-save, Extended Standby

– Advanced Programming, Test and Debugging Interfaces

JTAG (IEEE 1149.1 Compliant) Interface for test, debug and programming

PDI (Program and Debug Interface) for programming and debugging

• I/O and Packages

– 49 Programmable I/O Lines

– 64-lead TQFP

– 64-pad QFN/MLF

• Operating Voltage

– 1.6 – 3.6V

• Speed performance

– 0 – 12 MHz @ 1.6 – 3.6V

– 0 – 32 MHz @ 2.7 – 3.6V

Typical Applications

• Industrial control

• Factory automation

• Building control

• Board control

• White Goods

• Climate control

• ZigBee

• Motor control

• Networking

• Optical

• Hand-held battery applications

• Power tools

• HVAC

• Metering

• Medical Applications