Atmel AVR XMEGA User Manual

AVR® MICROCONTROLLERS

AVR XMEGA

8/16-bit High Performance Low Power Flash Microcontrollers

MCU SMART BATTERY SOLUTIONS Everywhere You Are

tinyAVR

megaAVR

AVR XMEGA

AP7

AVR32

UC3

AVR32

32-bit

8-/16-bit

8-bit

LESS POWER

MORE PERFORMANCE

AVR XMEGA™ MICROCONTOLLERS Everywhere You Are

Introducing The AVR Family

High Performance/Low Power 8- to 32-bit microcontrollers/processors

AVR Devices — success through innovation

Atmel® offers both 8-bit and 32-bit AVR®’s, and since day one the AVR philosophy has always been clear:

Highest performance with no power penalty.

Atmel is of feri ng a wide range of AVR
microcontrollers:

tinyAVR , 1-16 KBytes Flash, 8-32 pin

•

packages

megaAVR, 4-256 KBytes Flash, 28 to

•

100 pin packages

AVR XMEGA, 16-384 KBytes Flash,

•

44-100 pin packages

AVR32 UC3, 64-512 KBytes Flash,

•

48-144 pin packages

• AVR32 AP7, 210 DMIPS throughput at
150 MHz, 196-256 pin packages

®

®

AVR XMEGA - For demanding embedded applications

With a DMA Controller, an Innovative Event System, crypto engine and high speed ADC and DAC,

AVR XMEGA™ pushes the boundaries for high performance 8/16 bit MCUs while still remaining highly

®

compatible with tinyAVR

and megaAVR®.

XMEGA highlights

• picoPower™ technology for ultra low power consumption

• True 1.6 volt operation and CPU speeds up to 32 MHz

• Event System and DMA controller

• High speed, high resolution 12-bit ADC and DAC

• Crypto engine, Timers/Counters and fast communication interfaces

• Accurate and flexible Clock System with automatic clock failure protection

All AVR devices from the smallest tinyAVR

to the largest XMEGA uses the same CPU.

They dif fer only in features, pin count and

memor y size. This enable AVR to cover the

complete 8- and 16-bit market with one

single, compatible product family.

www.atmel.comwww.atmel.com

CPU

I/O AC ADC

FLASH

WDT

T/C

PIN

CHANGE

INT.

DMA

EVENT

SYS.

TWI SPI USART

ASYNC. CLK

MAIN CLK

CPU

I/O AC ADC

FLASH

WDT

T/C

PIN

CHANGE

INT.

DMA

EVENT

SYS.

TWI SPI USART

CPU

I/O AC ADC

FLASH

WDT

T/C

PIN

CHANGE

INT.

DMA

EVENT

SYS.

TWI SPI USART

ASYNC.

CLK.

MAIN

CLK.

BOD

CPU

I/O AC ADC

FLASH

WDT

T/C

PIN

CHANGE

INT.

DMA

EVENT

SYS.

TWI SPI USART

BOD

CPU

I/O AC

FLASH

WDT

T/C

PIN

CHANGE

INT.

DMA

EVENT

SYS.

TWI SPI USART

ADC

ASYNC.

BOD

CPU

I/O AC ADC

FLASH

WDT

T/C

PIN

CHANGE

INT.

DMA

EVENT

SYS.

TWI SPI USART

ASYNC.

CLK.

MAIN

CLK.

BOD

CPU

I/O AC ADC

FLASH

WDT

T/C

PIN

CHANGE

INT.

DMA

EVENT

SYS.

TWI SPI USART

BOD

CPU

I/O AC

FLASH

WDT

T/C

PIN

CHANGE

INT.

DMA

EVENT

SYS.

TWI SPI USART

ADC

ASYNC.

BOD

picoPower Technology

Reducing power consumption—maintaining performance

picoPower — Best MCU power budget

Atmel’s picoPower technology reduces power

consumption in both sleep and active mode. With

picoPower technology the embedded designer

can reduce the applications power consumption

while maintaining performance.

True 1.6 Volt Operation

AVR XMEGA offers true 1.6 Volt operation. All functions including ADC, DAC, Flash- and EEPROM

memories are all operating down to 1.6V. This allows safe operation directly from a 1.8V ±10% power

supply. It also enables deeper battery discharge to increase battery life.

Minimized Leakage Current

AVR XMEGA leakage current is only 100 nA while still maintaining

full RAM and register retention. This reduces power consumption

for applications spending most time in sleep mode.

Ultra Low Power 32 kHz Crystal Oscillator

AVR XMEGA’s Real Time Counter consumes only 500 nA while

running from a 32.768 kHz Crystal Oscillator.

Sleep modes

XMEGA has five different sleep modes to turn off unused modules

and reduce the power consumption in the application. Many

sleep modes makes it easy to find the perfect fit for the applica-

tion. The granularity is further enhanced by the innovative Power Reduction Register technology.

In idle sleep mode all peripherals operate while the CPU is sleeping

to reduce the power consumption. with

up to 50%, while event handling, communication and data input/output still run.

In power-save mode, XMEGA uses 650nA to run the Real Time Counter and have full SRAM and register

retention offering industry leading low power numbers. Enabling Watchdog and Brown Out adds only 1uA.

In power-down mode, XMEGA uses only 100nA with SRAM and register retetion, and 5us wake-up time

from pin change on any I/O pin and TWI address match.

Standby and extended standby sleep modes are identical to power-down and power-save, except the

external oscillator is kept running to reduce wake-up time.

Idle mode

Power-save mode Power-down mode

The new XMEGA microcontrollers feature

- Off-loads the CPU

- Based on the AVR CPU

- Increased CPU speed -> 32 MHz

- Supports ultralow 1.6 Volt operation

- Reduced power consumption

- Up to 32 MIPS

- Single cycle execution

- Instruction set optimized for C

- 32x8 general purpose registers

- hardware multiplier

- Reducing power usage

- Up to 8 simultaneous events

-> 100% predictable response time

-> Perfect for 8/16-bit applications

- Supports both AES and DES

- Reducing CPU time and power consumption

- Minimal CPU overhead for secure communication

- Off-loads the CPU

- Saves power

- 4-channels

-> Fast transfer between memories
and peripherals

- 16-bit (32-bit cascaded)

- Advanced Waveform eXtensions

- 16-bit RTC