Atmel AVR XMEGA AU series User Manual

5
8331B–AVR–03/12
Atmel AVR XMEGA AU
In Table 2-1 on page 5 a feature summary for the XMEGA AU family is shown, split into one fea-
ture summary column for each sub-family. Each sub-family has identical feature set, but different
memory options, refer to their device datasheet for ordering codes and memory options.
Table 2-1. XMEGA AU feature summary overview.
Feature Details / sub-family A1U A3U A3BU A4U
Pins, I/O
To ta l 100 64 64 44
Programmable I/O pins 78 50 47 34
Memory
Program memory (KB) 64 - 128 64 - 256 256 16 - 128
Boot memory (KB) 4 - 8 4 - 8 8 4 - 8
SRAM (KB) 4 - 8 4 - 16 16 2 - 8
EEPROM 2 2 - 4 4 1 -2
General purpose registers 16 16 16 16
Package
TQFP 100A 64A 64A 44A
QFN /VQFN – 64M2 64M2 44M1
BGA 100C1/100C2 – – 49C2
QTouch Sense channels 56 56 56 56
DMA Controller Channels 4 4 4 4
Event System
Channels 8 8 8 8
QDEC 3 3 3 3
Crystal Oscillator
0.4 - 16MHz XOSC Yes Yes Yes Yes
32.768 kHz TOSC Yes Yes Yes Yes
Internal Oscillator
2MHz calibrated Yes Yes Yes Yes
32MHz calibrated Yes Yes Yes Yes
128MHz PLL Yes Yes Yes Yes
32.768kHz calibrated Yes Yes Yes Yes
32kHz ULP Yes Yes Yes Yes
Timer / Counter
TC0 - 16-bit, 4 CC 4 4 4 3
TC1 - 16-bit, 2 CC 4 3 2 2
TC2 - 2x 8-bit 4 4 4 2
Hi-Res 4 4 4 3
AWeX 4 2 2 1
RTC 1 1 1
RTC32 1
Battery Backup System Yes

Atmel AVR XMEGA AU series Specifications

General

Brand	Atmel
Model	AVR XMEGA AU series
Category	Microcontrollers
Language	English