Datasheet

www.atmel.com
B Series — for Battery/USB-Powered Applications
The AVR UC3 B Series is designed for high data throughput, low
power consumption and outstanding computing performance.
The series features high connectivity with USB On-The-Go.
This feature, combined with a fast flash and large internal
SRAM, make it ideally suited for data-intensive applications.
The B series is particularly well suited for applications requiring
high computing performance and low power consumption in
combination with USB connectivity. These devices are used in a
range of applications, including USB Human Interface devices,
USB stick gateway, biometric, bridging, industrial control, and low-power portable applications.
64 - 512 KB Flash•
16 - 96 KB SRAM•
Peripheral DMA controller •
Full Speed USB Device + OTG•
3 USARTs•
2 SPI•
1 I•
2
S 24-bit input
1 I•
2
S 24-bit output
Multiple timers and PWM•
5V tolerant I/O•
48- and 64-pin package options•
QFP and QFN packages•
AT32UC3B Key Features
Designed for high data throughput, low power consumption
and outstanding computing performance, the A0 and A1 Series
features high connectivity with USB On-The-Go, Ethernet MAC
and SDRAM interfaces. These features, combined with a fast
flash and large internal SRAM, make ideally suited for data-
intensive applications.
The A0 and A1 Series are particularly well suited for applications
requiring Ethernet or USB connectivity and high computing
performance. These devices are used in a wide range of
applications including audio, biometric, communication, industrial
control and web servers.
A0/A1 Series — for Ethernet and USB OTG Applications
128 - 512 KB Flash•
32 - 64 KB SRAM•
SRAM / SDRAM controller •
Peripheral DMA controller•
Full Speed USB Device + OTG•
Ethernet MAC•
4 USARTs•
2 SPI•
1 I•
2
S 24-bit input
1 I•
2
S 24-bit output
Multiple timers and PWM•
16-bit Stereo bit stream DAC•
5V tolerant I/O•
100- and 144-pin package options•
QFP and BGA packages•
Qualified for Automotive•
AT32UC3A0/A1 Key Features
A3/A4 Series — for Hi-Speed USB Applications
page 12
64 - 256 KB Flash•
128 KB SRAM (64 KB + 2x32 KB)•
SRAM/ SDRAM controller•
MLC NAND Flash controller•
AES crypto engine•
Peripheral DMA controller•
Memory to Memory DMA•
High Speed USB Device + OTG•
SD/ MMC/ SDIO card controller •
4 USARTs•
2 SPI•
1 I•
2
S 24-bit input
1 I•
2
S 24-bit output
16-bit Stereo bit stream DAC•
100- and 144-pin package options•
QFP and BGA packages•
AT32UC3A3/A4 Key Features
The AVR UC3 A3 and A4 Series are designed for exceptionally
high data throughput with Hi-Speed USB On-The-Go, SD/SDIO
card, Multi-Level-Cell (MLC) NAND flash with ECC and SDRAM
interfaces. With their multi-layered AVR databus, 128 KB on-
chip SRAM with triple high-speed interfaces, and multi-channel
peripheral and memory-to-memory DMA controller, the A3 and
A4 offers outstanding data throughput. They also feature a Hi-Fi
stereo Audio DAC and a full duplex multi-channel I2S audio
interface.
The A3 and A4 Series are available with an optional AES crypto
module capable of 128 to 256-bit AES encryption at speeds of
up to 22.8 MBytes/s. Note that export restrictions apply to this
device variant.
The A3 and A4 Series are particularly well suited for applications requiring Hi-speed USB connectivity,
high computing performance and fast memory interfaces. These devices are used in a wide range of ap-
plications including audio, biometric, communication, USB to SDcard bridges and USB dongles.