特性 Features

? High-performance, low-power Atmel? AVR? XMEGA? 8/16-bit Microcontroller

? Nonvolatile program and data memories

? 8K –32KBytes of in-system self-programmable flash

? 2K – 4KBytes boot section

? 512Bytes – 1KBytes EEPROM

? 1K – 4KBytes internal SRAM

? Peripheral features

? Four-channel enhanced DMA controller with 8/16-bit address match

? Eight-channel event system

? Asynchronous and synchronous signal routing

? Quadrature encoder with rotary filter

? Three 16-bit timer/counters

? One timer/counter with 4 output compare or input capture channels

? Two timer/counter with 2 output compare or input capture channels

? High resolution extension enabling down to 4ns PWM resolution

? Waveform extension for control of motor, LED, lighting, H-bridge, high drives and more

? Fault extension for safe and deterministic handling and/or shut-down of external driver

? CRC-16 (CRC-CCITT) and CRC-32 (IEEE 802.3) generator

? XMEGA Custom Logic (XCL) module with timer, counter and logic functions

? Two 8-bit timer/counters with capture/compare and 16-bit cascade mode

? Connected to one USART to support custom data frame length

? Connected to I/O pins and event system to do programmable logic functions

? MUX, AND, NAND, OR, NOR, XOR, XNOR, NOT, D-Flip-Flop, D Latch, RS Latch

? Two USARTs with full-duplex and single wire half-duplex configuration

? Master SPI mode

? Support custom protocols with configurable data frame length up to 256-bit

? System wake-up from deep sleep modes when used with internal 8MHz oscillator

? One two-wire interface with dual address match (I2C and SMBus compatible)

? Bridge configuration for simultaneous master and slave operation

? Up to 1MHz bus speed support

? One serial peripheral interface (SPI)

? 16-bit real time counter with separate oscillator and digital correction

? One sixteen-channel, 12-bit, 300ksps Analog to Digital Converter with:

? Offset and gain correction

? Averaging

? Over-sampling and decimation

? One two-channel, 12-bit, 1Msps Digital to Analog Converter

? Two Analog Comparators with window compare function and current sources

? External interrupts on all general purpose I/O pins

? Programmable watchdog timer with separate on-chip ultra low power oscillator

? QTouch? library support

? Capacitive touch buttons, sliders and wheels

? Special microcontroller features

? Power-on reset and programmable brown-out detection

? Internal and external clock options with PLL

? Programmable multilevel interrupt controller

? Five sleep modes

? Programming and debug interface

? PDI (Program and Debug Interface)

? I/O and Packages

? 26 programmable I/O pins

? 7x7mm 32-lead TQFP

? 5x5mm 32-lead VQFN

? 4x4mm 32-lead UQFN

? Operating Voltage

? 1.6 – 3.6V

? Operating frequency

? 0 – 12MHz from 1.6V

? 0 – 32MHz from 2.7V