32-bit AVR UC3 Microcontrollers
Optimized for System Performance
AVR® MICROCONTROLLERS
True 1.6V operation
More MHz per mW
Unrivalled DSP performance
Peripheral DMA controller
www.atmel.com/UC3
AVR UC3 FLASH MICROCONTROLLERS Everywhere You Are®
page 2
AVR Solutions
8- and 32-bit Low-Power, High-Performance MCUs
AVR combines the most code-efficient architecture for C and assembly programming with the ability to tune system parameters
throughout the entire life cycle of your key products. No other microcontrollers deliver more computing performance at a lower power
consumption. Combined with industry leading development tools and design support, you get to market faster. And once there, you
can easily and cost-effectively refine and improve your product offering.
It’s simple: AVR works across the entire range of applications you’re working on, or want to work on.
32-bit AVR UC3
The 32-bit AVR UC3 product family is built on the high-performance 32-bit AVR architecture and optimized
for highly integrated applications. The 32-bit AVR UC3 microcontrollers deliver high computational through-
put, deterministic real-time control, low power consumption, low system cost, high reliability and ease of
use. The 32-bit AVR CPU includes cutting-edge features such as integer and fixed point DSP arithmetic,
single-cycle multiply and accumulate instructions, and single-cycle SRAM access. The peripheral DMA
controller and multi-layer high-speed bus architecture make the UC3 core ideal for high throughput ap-
plications. UC3 devices are perfectly suited for portable and battery-powered applications due to their
outstanding low power properties.
8/16-bit AVR XMEGA
The AVR XMEGA delivers 16-bit performance and leading low-power features at an 8-bit price point.
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.
All AVR XMEGA devices are compatible with tinyAVR and megaAVR devices. Within the XMEGA family, devices are 100% code com-
patible across all devices from the smallest to the largest. This makes it possible to develop with any XMEGA device, and switch to
any other XMEGA device later without having to change any code. This allows multi-project development teams to keep and maintain
only one code base and use and re-use this across multiple projects. The result is much faster development and prototyping cycles.
8-bit megaAVR
The megaAVR family offers the broadest selection of devices and peripheral options, making them suitable
for a wide range of applications. The family contains devices with LCD, USB, CAN, and LIN interfaces, in
addition to the standard SPI, UART and I2C interface. Developed for applications that need large amount
of program code, megaAVR offers substantial program and data memories. Better still, megaAVR features
self-programming flash for fast, secure, cost-effective field upgrades.
8-bit tinyAVR
tinyAVR devices are optimized for a wide range of applications that require a small but power-
ful microcontroller. They are perfect for size constrained applications and they are often found
as glue logic in bigger systems. boards and is available with integrated A/D converter and
EEPROM memory.
By delivering Flash flexibility at Mask ROM prices, tinyAVR significantly cuts your time to mar-
ket, while boosting your bottom line. And there’s nothing tiny about that.
www.atmel.com
Ease of Use
Seamless integration between devices, tools, software framework and support
AVR Tools – Quality and Low cost
32-bit AVR UC3 microcontrollers benefit from the well-established AVR tools and software chain renowned for its quality and ease
of use. Selecting the UC3 microcontroller will bring your application higher performance and lower power consumption, as well as a
seamless ecosystem of source code libraries, development tools, documentation, and a large user community. All this will allow you
to focus on building better products and bringing them to market faster. As an embedded developer you will find it easy to succeed
with the 32-bit AVR microcontrollers.
Debugging and In-system Programming
32-bit AVR UC3 devices include a non-intrusive On-Chip Debug system that requires no device resources. This gives real-time ac-
cess to all peripheral registers, data and program memories, and provides support for an unlimited number of break points. The UC3
provides fast serial programming interfaces, including USB, for production line or in system programming. By including the bootloader
found in the AVR UC3 Software Framework in a project, the UC3 can also receive flash upgrades in the field through virtually any
interface without reset or halt of critical program execution. The serial number in each device eases implementation of safe crypto
bootloaders, networking applications, authentication and life cycle product tracking.
Documentation, Software and Support
From the smallest device to the highest performance processors, reference datasheets describing features and implementations are
available at www.atmel.com/UC3. Application notes and our unique free AVR UC3 Software Framework library make it easy to start
development.
page 3
AVR UC3 Software Framework
Software that Releases the Superior AVR Performance
MCU SMART BATTERY SOLUTIONS Everywhere You Are®
AVR UC3 FLASH MICROCONTROLLERS Everywhere You Are®
Library of C Source Code
The AVR UC3 Software Framework is a collection of
production-ready source code written and optimized
by Atmel application experts and tested in hundreds
of production designs. Using these peripheral drivers,
communication stacks and application-specific libraries
is the quick and effortless way to release the superior
AVR performance. The AVR UC3 Software Framework
supports all 32-bit AVR devices and development kits
and is compatible with both AVR GNU Toolchain and IAR
Embedded Workbench® compilers.
Drivers
Peripheral and CPU Drivers
A complete set of CPU and Peripheral drivers hide any device specific peripheral features below a
standard set of Application Peripheral Interfaces (API) function calls to makes the migration between AVR
devices quick and easy. Peripheral drivers include code used to initialize and service the clock system,
I/O multiplexing, peripheral interrupts, DMA transfers and Peripheral Event System connections.
Peripheral and CPU drivers•
Communication library•
USB/ TCP/IP/ Bluetooth• ®/ IEEE 802.15.4TM
Storage library•
NAND/ SD/ MMC/ Memory stick•
DSP library•
Audio library•
Security and encryption library•
Graphics Toolkit and library•
FAT filesystem•
External components library•
LCD/ Sensors/ Keyboards•
AVR UC3 Software Framework Contents
Components
External Peripherals
The AVR UC3 Software Framework contains drivers for popular off-chip components such as QTouch®
capacitive touch keyboards, LCD displays, SRAM/SDRAM/NAND Flash memories, SD/MMC storage
cards, and audio amplifiers/codecs.
Boards
Hardware Abstraction Layer
To simplify the process of writing code for a specific
hardware board, the AVR UC3 Software Framework uses
a Boards layer to describe the external hardware and
configure the board specific multiplexing of peripheral
functions through the AVR I/O pins. Replacing pin num-
bers by more logical names when addressing external
hardware makes the source code easier to read, and also
simplifies the process of migrating a project from one
board to another.
page 4
www.atmel.comwww.atmel.com
DSP Library: 70 functions in 7 categories
Basic filtering•
Operators•
Signal generation•
Transforms•
Vectors•
Windowing•
Advanced encoders and re-samplers•
Communication Stacks
The 32-bit AVR UC3 is built for very high speed com-
munication, and the communications library contains
complete communication stacks for USB, TCP/IP, and RF communication
USB stack:• Host or device configuration. Full support for popular classes including HID, Mass Stor-
age, Audio, CDC serial port, and Device Firmware Upgrade
TCP/IP stack:• IP, TCP, UDP, ICMP, DHCP, PPP and ARP low level functions. FTP server, HTTP web
server, SMTP client, and POP3 client
Bluetooth stack:• Will be added in 2010
IEEE 802.15.4 ZigBee PRO stack:• Will be added in 2010
Encryption Library
The 32-bit AVR instruction set contains native support for encryption; a library of popular cryptographic
functions for added security to any application. The source code is optimized in assembly by Atmel soft-
ware experts for maximum speed and minimal size. The library contains AES, 3DES, ARC4, MD{2, 4,
5}, SHA-1, SHA-256, RSA1024, X.509, SSL version 3, and TLS version 1, and integrates seamlessly with
other libraries such as the TCP/IP and USB communication stacks and memory card drivers.
Audio Library
The Audio library contains software for decoding of popular audio formats, including MP3 and WMA.
The audio library also includes support for docking audio players and the popular iPod®/ iPhoneTM from
Apple® via USB. The library will be expanded to support the OGG and AAC in 2010.
Picture Library
This library is used for decoding and rescaling multiple picture formats including JPEG and BMP, and
displaying them on an LCD screen.
File System
The 32-bit AVR includes FAT12/16/32 file system support. It is also optimized for seamless integration
with USB mass storage devices and SD memory cards. The library is complete with example code dem-
onstrating how to implement a memory abstraction layer, a file-based data logger, and a shell example
across an RS232 line.
Services
Floating Point and DSP Arithmetic
The 32-bit AVR DSP Library is a complete set of
math functions optimized in assembly by Atmel AVR
experts.
page 5
32-bit AVR UC3 Flash Microcontrollers feature:
- True 1.6V operation
- More MHz per mW
- Unrivalled DSP performance
- Peripheral DMA controller
HIGHER CPU PERFORMANCE
- The 32-bit AVR CPU and its tightly
coupled dual port SRAM allow fast
computation without latencies from
pipeline stalls or system bus
arbitrations.
DETERMINISTIC REAL-TIME CONTROL
- Fast context switches, atomic peripheral
read- modify-write access and a fully
autonomous Peripheral Event System
allow predictable external event handling.
HIGH RELIABILITY
- The 32-bit AVR UC3 microcontrollers boot safely from
the on-board RC oscillator, and return to RC oscillator
operation if external crystal oscillator failure is detected.
The brown-out detector and the windowed hardware
watchdog protect the system from environmental malfunctions.
The non-maskable interrupt ensures critical event
handling. The MPU and privileged operating modes keep the
kernel safe from runaway application code.
HIGHER DATA THROUGHPUT
With parallel buses, peripheral DMA con-
troller, memory to memory DMA controller
and split memory architecture, the 32-bit
AVR UC3 delivers superior bandwidth.
LOW POWER CONSUMPTION
The 32-bit AVR UC3 includes a state of the
art low power architecture. It consumes less than
0.8 mW/MHz in active mode. Designed to
deliver more work per MHz than any competi-
tor and with features such as dynamic frequency
scaling and peripheral event controller, the 32-bit
AVR UC3 is the worlds most efcient 32-bit
low power alternative in the market today.
SHORTEST TIME TO MARKET
The 32-bit AVR UC3 Software Framework offers a unique collection of application software,
drivers and libraries. Combined with high-quality, low-cost development tools and a skilled
world wide support staff we are proud to ensure the shortest time to market.
EASY TO USE
- The seamless integration between 32-bit AVR microcontrollers, development tools, source
code libraries and reference designs enables the user to focus only on application
development. Backed up by Atmel’s excellent design support and a large and active
developer community, the 32-bit AVR will cut development cycles and reduce time to
market.
AVR UC3 FLASH MICROCONTROLLERS Everywhere You Are®
System Performance
For embedded systems, system performance is much more than a good MIPS number. It is important to
have powerful, fast peripherals and an energy-efficient memory system that allows the application to run
effortlessly with minimal power consumption.
Single Cycle SRAM
Fast SRAM access is critical to achieving the
necessary computing performance. The UC3 CPU
has a single-cycle access to the SRAM embedded
in the CPU itself.
Bus Matrix
To ensure sufficient data bandwidth, the 32-bit AVR architects have designed a set of parallel buses where
each bus master has a dedicated bus for all the slaves. This gives the 32-bit AVR a tremendous data band-
width and removes the bottleneck encountered in traditional 32-bit microcontrollers.
Unrivalled DSP Performance
By including powerful instructions for single cycle multiply
accumulate and fractional multiply for various number
formats, the 32-bit AVR UC3 delivers unrivalled DSP per-
formance compared to legacy architectures. In the AVR
UC3 Software Framework more than 70 DSP functions
have been assembly optimized utilizing these instruc-
tions. DSP has never been easier.
Split Memory Architecture with
DMA
High performance peripheral modules require
a true memory DMA controller. In addition, the
memory is partitioned such that one memory block
resides inside the CPU to support single cycle
memory access during program execution. To maximize the bandwidth, two more SRAMs are placed on
two different layers on the multi-layered high-speed bus and can act as data buffers for high-speed periph-
erals like the USB. The SRAMs are coupled to the memory DMA controller such that data can be efficiently
moved without loading the CPU.
Code Density and Efficiency
The 32-bit AVR architecture was designed in close cooperation with compiler experts. This ensures that the
AVR architecture excels when compiling high-level programming languages like C and C++. Compact and
extended instructions are chosen by the compiler without any performance penalty introduced by legacy
architectures. A compact code is important, not only because it resolves in a smaller memory footprint, but
also because a dense instruction can easily be optimized for both speed and size.
page 7
www.atmel.com
Peripheral DMA Controller
The Atmel Peripheral DMA controller sets a
new standard for data transfer efficiency. If
the Peripheral DMA controller is not en-
abled, the maximum usable transfer rate on
the SPI module would be approximately 1
MBit/s, occupying the CPU with more than
50% load just moving data around. With the
Peripheral DMA controller this bottleneck is
removed and the AVR32 UC3 microcontroller
can achieve a transfer rate of 33 MBit/s on
SPI and USART with only a 15% load on the
CPU. The UC3 can even toggle the I/O pins
at 33 MHz.
Interrupt Controller
The 32-bit AVR UC3 CPU includes a multi-level interrupt
controller. Four priority levels are supported where higher
level interrupts are prioritized and executed before low level
interrupts. All peripherals can be assigned any interrupt level
and the interrupt vector addresses can be changed without
stopping the CPU. Interrupt latencies are very fast, typically
11 clock cycles including saving the register file to the stack.
A higher level interrupt will halt execution of a lower level interrupt routine. The lower level
interrupt routine will continue and finish after the higher level interrupt routine finishes.
A second interrupt at an interrupt level already being serviced, will pend until the first
interrupt routine finishes.
page 8
High-level
Medium-level
Program Flow and Interrupt execution
1
2
3
1
21 3 2 1 Main
Main
Low-level
HOLD 2
HOLD
Main
High-level
Medium-level
Program Flow and Interrupt execution
1
1
3
1
2
1 3 1 2 Main
Main
Medium-level
HOLD
HOLD
Main
07
AVR UC3 FLASH MICROCONTROLLERS Everywhere You Are®
Peripheral Event System
By removing interrupt-driven data transfer
and replacing it with an event-triggered
data transfer, the innovative Peripheral
Event System in 32-bit AVR UC3 repre-
sents a paradigm shift. The Peripheral
Event System allows the 32-bit AVR UC3
to send signals (events) directly to other
peripherals without involving the CPU. This
ensures short and predictable response
time, and at the same time it offloads the
CPU and reduces power consumption.
Without Peripheral Event System all Peripheral Requests
need to be handled by the CPU.
With Peripheral Event System peripherals can send
signals (events) to other peripherals.
Security
The 32-bit AVR UC3L provides mechanisms to protect
the system from hacker modification,
flash software theft and runaway code.
Secure CPU State
CPU resources and sections of code/data memory can be reserved for proprietary
software IP or critical sections of code/data. A special API is used to access
these resources from the rest of the code. Attempts to access these resources
by circumventing this API (either by hacking or runaway code) will be aborted
and result in an exception.
Memory Protection Unit (MPU)
A MPU restricts access to selected peripherals and memory regions so
they can only be accessed in a controllable way.
Secure Access Unit (SAU)
A SAU allows the user to set-up tunnels through regions pro-
tected by the MPU, allowing unrestricted access to specified
peripheral registers, reducing code size, and increasing ex-
ecution speed.
page 9
ADC
DAC
Analog
Comparator
Peripheral
DMA
Timer/
Counter0
Timer/
Counter1
PWM
CPU
ADC
DAC
Analog
Comparator
Timer/
Counter0
Timer/
Counter1
CPU
Peripheral Event System
PWM
Peripheral
DMA
0 1 2
64 channels
3 64
True 1.6V Operation
The 32-bit AVR UC3L family offers true 1.6V operation. All functions — including
ADC, DAC, onboard Flash and SRAM — are capable of operating down to 1.62V.
Minimized Leakage Current
The 32-bit AVR UC3L leakage current is only 100 nA retaining special purpose registers.
The leakage current with a real-time clock running is less than 1.5 µA. The real-time clock
includes a calendar mode, ensuring that clock cycles are not wasted on
calculating date and time.
Ultra Low Power 32 KHz Crystal Oscillator
The 32-bit AVR UC3L Real Time Clock consumes less than 1.5 µA while running from a 32.768 kHz crystal
oscillator.
Multiple Clock Domains
The main databus and two peripheral data buses can all be set to individual clock frequencies to ensure that
no unnecessary power is consumed. The UC3 microcontrollers also feature two crystal oscillators and dual
PLLs and DFFLs to simplify the task of selecting a suitable crystal
frequency for peripherals such as USB, UART and audio codec.
Dynamic Frequency Scaling
Dynamic Frequency Scaling (DFS) reduces power consumption
when maximum speed is not required throughout the execution of
an application. DFS makes it possible to adapt the clock frequency
on-the-fly to an application without halting program execution.
Individual Peripheral Clock Control
It is used to turn the clocks on or off dynamically for peripheral units
not in use.
www.atmel.com
picoPower Technology
Reducing Power Consumption while Maintaining Performance
The 32-bit AVR UC3 comes with a variety of interfaces that combined with the DMA and Peripheral Event
Control creates a fast and powerful communication platform.
High Speed I/O Interfaces
USART
• Asynchronous and synchronous operation
• SPI Mode
• LIN Mode
• Supports IrDA
• Up to 33 Mbps communication
• Peripheral DMA
TWI
• I2C and SMBusTM compliant
• Full 100 kHz and 400 kHz support
• Master and Slave operation
• Peripheral DMA
SPI
• Supports up to 15 external devices
• Up to 33 Mbps communication
• Peripheral DMA
USB On-the-Go
• Host mode
• Up to 480 Mbps communication in Hi-Speed mode
• Peripheral DMA
Ethernet
• Up to 100 Mbps communication
• Peripheral DMA
Up to 36 PWM channels
• 8-bit resolution
• Up to 150 MHz base clock
• Peripheral Event System
Synchronous Serial Controller (SSC)
• Full duplex 24-bit I2S
• Up to 33 Mbps communication
• Peripheral DMA
page 10
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• 2S 24-bit input
1 I• 2S 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• 2S 24-bit input
1 I• 2S 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• 2S 24-bit input
1 I• 2S 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.
011
AVR UC3 FLASH MICROCONTROLLERS Everywhere You Are®
The AVR UC3 D Series is a cost reduced option, ideal for the
most cost-sensitive embedded applications that require USB
device connectivity. Designed to be 100% pin and functionally
compatible with the UC3B series, the UC3D offers a reduced
maximum speed, a USB device interface without OTG function,
and I/O pads limited to 3.6V maximum voltage.
D Series — for Cost-Sensitive Applications
64 - 256 KB Flash•
8 - 16 KB SRAM •
Peripheral DMA controller•
Full Speed USB device•
2 USARTs•
1 SPI•
1 Two-Wire Interface•
Multiple timers and PWM•
48-pin package•
QFP and QFN packages•
AT32UC3D Key Features
The AVR UC3 C Series is designed for industrial and automotive
control applications, including high-speed communication and
motor control. The devices feature single or dual CAN interfaces,
a full speed USB with OTG, NAND flash and SDRAM interface,
PWM with dead-time insertion, two 1.5 MSPS 12-bit ADC with
16 channels and dual sample-and-hold circuitry for synchronized
sampling of 2 signals, two 1.5 12-bit analog DAC with dual
outputs. Designed with the multi-layered AVR32 databus, 68
KB on-chip SRAM with triple high-speed interfaces, and multi-
channel Peripheral and memory to memory DMA controller, the
AT32UC3C offers outstanding data throughput.
The AT32UC3C Peripheral Event System provides a connection
between on-chip peripherals to off-load the CPU, reduces power consumption and provides a deterministic
response to external and internal events.
C Series — for Industrial Control Applications
64 – 512 KB Flash•
68 KB SRAM (2 x 32 KB + 4 KB)•
SRAM / SDRAM controller •
NAND flash controller•
Peripheral DMA controller•
Memory to Memory DMA•
Peripheral Event System•
Single / Dual CAN interface•
Full speed USB device + OTG•
16 ch 12-bit ADC, 1.5 MSPS dual •
2 ch 12-bit DAC, 1.5 MSPS•
PWM with dead-time insertion•
4 USART•
2 SPI•
1 I• 2S 24-bit input
1 I• 2S 24-bit output
144-, 100- and 64-pin packages•
QFP, QFN and BGA packages•
AT32UC3C Key Features
L Series — for Battery-Powered Applications
16 - 256 KB Flash•
8 - 16 KB SRAM•
Peripheral DMA controller•
Peripheral Event System•
Full speed USB device •
4 USARTs•
1 SPI•
2 Two-Wire Interfaces•
6 channels 12-bit ADC•
8 Analog Comparators•
36 PWM channels•
48-pin package•
QFP and QFN packages•
AT32UC3L Key Features
The AVR UC3 L Series is Atmel’s first picoPower 32-bit microcon-
troller. It delivers down to 0.48 mW/MHz in active operation and
sleep mode consumption of 1.5uA with RTC running, or 100nA with
all clocks stopped. The L series delivers a wide range of techno-
logical innovations to the 32-bit microcontroller market. It is the
industry’s first 32-bit microcontroller with a built-in Capacitive Touch
Peripheral. The new FlashVault™ code protection allows the on-chip
flash to be partially programmed and locked, creating secure on-
chip storage for software intellectual property. Code stored in the
FlashVault will execute as normal, but it cannot be read, copied or
debugged.
page 13
The FlashVault code protection can carry software such as a math library or an encryption
algorithm to potentially untrustworthy environments where the rest of the source code can be developed
and debugged.
Other innovations first introduced in the UC3L Series include SleepWalking™ intelligent peripherals, a
Peripheral Event System, Clock Failure Protection, Spread Spectrum Clocks with fast startup times, a
Frequency Meter, an RTC with Crystal Precision Tuner and calendar mode, and a PWM output on all 36
I/O pins.
The L series is targeted at portable consumer applications, board controller, game pads, remote con-
trols, and human interface devices.
AVR UC3 FLASH MICROCONTROLLERS Everywhere You Are®
Products
Flash (KBytes)
SRAM (Bytes)
SD/MMC
Ethernet MAC
USB Hi-Speed
USB Full Speed
USB Host/OTG
CAN
USART
SPI with 4x Slave
SSC (I2S audio)
TWI (I2C)
I/O
16-bit Timer/Counters
PWM (Channels)
RTC/ 32 KHz oscillator
Crystal oscillator
Memory Protection Unit
10-bit A/D (Channels)
12-bit A/D (Channels)
ABDAC (Audio Bitstream DAC)
DAC
Analog Comparator
Crypto (AES)
VCC (V)
Clock Speed (MHz)
Package (b)
AT32UC3A0128 128 32K 1 Y Y 4 2 1 Y 109 313 Y 2 Y 8 3.0 - 3.6 66 LQFP144, TFBG A144
AT32UC3A0256 256 64K 1 Y Y 4 2 1 Y 109 313 Y 2 Y 8 3.0 - 3.6 66 LQFP144, TFBG A144
AT32UC3A0512 512 64K 1 Y Y 4 2 1 Y 109 313 Y 2 Y 8 3.0 - 3.6 66 LQ FP144, TFBGA144
AT32UC3A1128 128 32K 1 Y Y 4 2 1 Y 69 313 Y 2 Y 8 3.0 - 3.6 66 TQFP100
AT32UC3A1256 256 64K 1 Y Y 4 2 1 Y 69 313 Y 2 Y 8 3.0 - 3.6 66 TQFP100
AT32UC3A1512 512 64K 1 Y Y 4 2 1 Y 69 313 Y 2 Y 8 3.0 - 3.6 66 TQFP100
AT32UC3A364 64 128K Y Y Y Y 4 2 1 Y 110 613 Y 2 Y 8 3.0 - 3.6 66 LQ FP144, TFBGA144
AT32UC3A3128 128 128K Y Y Y Y 4 2 1 Y 110 613 Y 2 Y 8 3.0 - 3.6 66 LQFP144, TFBGA144
AT32UC3A3256 256 128K Y Y Y Y 4 2 1 Y 110 613 Y 2 Y 8 3.0 - 3.6 66 LQFP144, TFBGA144
AT32UC3A364S 64 128K Y Y Y Y 4 2 1 Y 110 613 Y 2 Y 8 Y 3.0 - 3.6 66 LQFP144, TFBG A144
AT32UC3A3128S 128 128K Y Y Y Y 4 2 1 Y 110 613 Y 2 Y 8 Y 3.0 - 3.6 66 LQFP144, T FBGA144
AT32UC3A3256S 256 128K Y Y Y Y 4 2 1 Y 110 613 Y 2 Y 8 Y 3.0 - 3.6 66 LQFP144, TFBGA144
AT32UC3A464 64 128K Y Y Y Y 4 2 1 Y 83 613 Y 2 Y 8 3.0 - 3.6 66 VFBG A10 0
AT32UC3A4128 128 128K Y Y Y Y 4 2 1 Y 83 613 Y 2 Y 8 3.0 - 3.6 66 VFB G A10 0
AT32UC3A4256 256 128K Y Y Y Y 4 2 1 Y 83 613 Y 2 Y 8 3.0 - 3.6 66 VFBG A10 0
AT32UC3A464S 64 128K Y Y Y Y 4 2 1 Y 83 613 Y 2 Y 8 Y 3.0 - 3.6 66 VFBGA100
AT32UC3A4128S 128 128K Y Y Y Y 4 2 1 Y 83 613 Y 2 Y 8 Y 3.0 - 3.6 66 VFBG A10 0
AT32UC3A4256S 256 128K Y Y Y Y 4 2 1 Y 83 613 Y 2 Y 8 Y 3.0 - 3.6 66 VFB G A10 0
AT32UC3B064 64 16K Y Y 3 1 1 Y 44 313 Y 2 Y 8 3.0 - 3.6 60 TQFP64, QFN64
AT32UC3B0128 128 32K Y Y 3 1 1 Y 44 313 Y 2 Y 8 3.0 - 3.6 60 TQFP64, QFN64
AT32UC3B0256 256 32K Y Y 3 1 1 Y 44 313 Y 2 Y 8 3.0 - 3.6 60 TQFP64, QFN64
AT32UC3B0512 512 96K Y Y 3 1 1 Y 44 313 Y 2 Y 8 3.0 - 3.6 60 TQFP64, QFN64
AT32UC3B164 64 16K Y 2 1 Y 28 313 Y 1 Y 6 3.0 - 3.6 60 TQFP48, QFN48
AT32UC3B1128 128 32K Y 2 1 Y 28 313 Y 1 Y 6 3.0 - 3.6 60 TQFP48, QFN48
AT32UC3B1256 256 32K Y 2 1 Y 28 313 Y 1 Y 6 3.0 - 3.6 60 TQFP48, QFN48
AT32UC3B1512 512 96K Y 2 1 Y 28 313 Y 1 Y 6 3.0 - 3.6 60 TQFP48, QFN48
AT32UC3C064 64 16K 1Y Y 2 4 2 1 2 125 620 Y 2 Y 16 2 4 Y3.0 - 5.5(c) 66 LQ FP144
AT32UC3C0128 128 32K 1Y Y 2 4 2 1 2 125 620 Y 2 Y 16 2 4 Y3.0 - 5.5(c) 66 LQFP144
AT32UC3C0256 256 64K 1Y Y 2 4 2 1 2 125 620 Y 2 Y 16 2 4 Y3.0 - 5.5(c) 66 LQFP144
AT32UC3C0512 512 64K 1Y Y 2 4 2 1 2 125 620 Y 2 Y 16 2 4 Y3.0 - 5.5(c) 66 LQ FP144
AT32UC3C164 64 16K 1Y Y 2 4 2 1283 620 Y 2 Y 16 2 4 Y3.0 - 5.5(c) 66 TQFP100
AT32UC3C1128 128 32K 1Y Y 2 4 2 1283 620 Y 2 Y 16 2 4 Y3.0 - 5.5(c) 66 TQFP100
AT32UC3C1256 256 64K 1Y Y 2 4 2 1283 620 Y 2 Y 16 2 4 Y3.0 - 5.5(c) 66 TQFP100
AT32UC3C1512 512 64K 1Y Y 2 4 2 1283 620 Y 2 Y 16 2 4 Y3.0 - 5.5(c) 66 TQFP100
AT32UC3C264 64 16K 1Y Y 2 3 1 1 2 47 320 Y 2 Y 11 1 2 Y3.0 - 5.5(c) 66 TQFP64
AT32UC3C2128 128 32K 1Y Y 2 3 1 1 2 47 320 Y 2 Y 11 1 2 Y3.0 - 5.5(c) 66 TQFP64
AT32UC3C2256 256 64K 1Y Y 2 3 1 1 2 47 320 Y 2 Y 11 1 2 Y3.0 - 5.5(c) 66 TQFP64
AT32UC3C2512 512 64K 1Y Y 2 3 1 1 2 47 320 Y 2 Y 11 1 2 Y3.0 - 5.5(c) 66 TQFP64
AT32UC3D164 64 8K Y2 1 Y 28 313 Y 1 6 1.62 - 3.6 48 TQFP48, QFN48
AT32UC3D1128 128 16K Y2 1 Y 28 313 Y 1 6 1.62 - 3.6 48 TQFP48, QFN48
AT32UC3D1256 256 16K Y2 1 Y 28 313 Y 1 6 1.62 - 3.6 48 TQFP48, QFN48
AT32UC3L016 16 8K 4 1 2 36 636 Y 1 Y 9 Y 8 1.62 - 3.6 50 TQFP48, QFN48, LLGA48
AT32UC3L032 32 16K 4 1 2 36 636 Y 1 Y 9 Y 8 1.62 - 3.6 50 TQFP48, QFN48, LLGA48
AT32UC3L0 64 64 16K 4 1 2 36 6 3 6 Y 1 Y 9 Y 8 1.62 - 3.6 50 TQFP48,QFN48, LLGA48
AT32UC3L0128 128 32K 4 1 2 36 636 Y 1 Y 9 Y 8 1.62 - 3.6 50 TQFP48, QFN48, LLGA48
AT32UC3L0256 255 32K 4 1 2 36 636 Y 1 Y 9 Y 8 1.63 - 3.6 50 TQFP48, QFN48, LLGA48
a) P: Product in Full Production, I: Device under Introduction, F: Future device.
b) Pb-free packaging complies to the European Directive for Restriction of Hazardous Substances (RoHS directive). Also Halide free and fully Green.
c) Voltage supply: 3.0 - 3.6V or 4.5 - 5.5V.
Product Selector Guide
page 14
www.atmel.com
Development Tools
Kit P/N Supported parts Description
AVR ONE!
Debugger All AVR MCUs
• Nexus and JTAG Interface
• Non-intrusive Real-Time Trace
• Run-Time Control (Run, Stop, Single-step, Reset)
• Program Flash and Fuses
JTAGICE mkII
Debugger All AVR MCUs
• JTAG Interface
• Run-Time Control (Run, Stop, Single-step, Reset)
• Program Flash and Fuses
AVR Dragon
Debugger All AVR MCUs
• JTAG and debugWire Interface
• In-System Programming
• High Voltage Serial Programming
• Parallel Programming
ATE VK1100
Evaluation kit A0/A1 series
• 10/100 Ethernet and USB OTG interface
• SPI, TWI and USARTs
• Temperature and light sensors
• 20x4 character LCD
• MMC/SD card & expansion connector
ATE VK1101
Evaluation kit B series
• USB OTG interface
• SPI, TWI and USARTS
• 3-axis accelerometer, temperature and light sensors
• MMC/SD card & expansion connector
ATE VK1104
Evaluation kit A3/A4 series
• Hi-Speed USB OTG interface
• 320 x 240 QVGA TFT LCD
• Two MMC/ SD card connectors
• SPI, TWI and USARTs
• Capacitive Touch interface
ATE VK1105
Evaluation kit A0/A1 series
• 10/100 Ethernet and USB OTG interface
• SPI, TWI and USARTs
• 320 x 240 QVGA TFT LCD
• Capacitive Touch keyboard
• Stereo Audio 3.5mm jack output
• MMC/SD card expansion connector
UC3C-EK
Evaluation kit C series
• Full Speed USB OTG interface
• 320 x 240 QVGA TFT LCD
• Dual CAN, LIN, SPI, TWI and USARTs
• Capacitive Touch interface
• Motor Control Interface
Will arrive in 2010
AT32UC3L-EK
Evaluation kit L series • Capacitive Touch Keyboard Will arrive in 2010
ATE XT WIFI
Evaluation kit All UC3
• 32-bit AVR Wi-FI Extension Board
• SD card form factor
• For use with ATEVK1105, ATEVK1104, ATEVK1101 and ATEVK1100
• AVR Wi-Fi Extension Board mounted with HDG104 WLAN 802.11b/g
• http://www.hd-wireless.se
ATSTK600
Starter kit All UC3 Complete programming and development system
supporting all AVR32 UC3 series via socket adaptors
ATQT600
Evaluation kit L series
• 1x USB powered interface board
• 3x MCU boards (ATtiny88, ATmega324PA, ATxmega128A1)
• 3x Sensor boards supporting up to 64-channels
• Cables
Free AVR
Development
Software
All UC3
• AVR32 Studio (multi platform IDE)
• GNU Toolchain (gcc, gdb, etc.)
• AVR UC3 Software Framework
Commercial
Development
Software(1)
All UC3
• Embedded Workbench from IARTM - www.iar.com
• ThreadX® from Express Logic - www.rtos.com
• µC/OS-II from Micrium - www.micrium.com
• EmbOS from Segger - www.segger.com
32-bit AVR UC3 microcontrollers benefit from the well-known AVR tools and software chain, which is renowned for its quality
and seamless integration of devices, hardware and software tools, and documentation. Embedded developers will find it easy
to succeed with the AVR.
page 15
(1) The AVR third party program is continuously expanding. Please visit www.atmel.com/products/AVR/thirdparty.asp for the up-to-date
information.
Headquarters
Atmel Corporation
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International
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Tel.: (+49) 89-31970-111
Fax: (+49) 89-3194621
Atmel Japan
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JAPAN
Tel: (+81) 3-3523-3551
Fax: (+81) 3-3523-7581
Literature Requests
www.atmel.com/literature
Website
www.atmel.com
© 2010 Atmel Corporation. All
rights reserved. Atmel®, Atmel
logo and combinations thereof,
AVR®, Everywhere You Are®,
STK®, QTouch® and others
are re gistered trademarks,
XMEGATM and others are trade-
marks of Atmel Corporation or
its subsidiaries. Other terms
and product names may be
trademarks of others.
Rev.:
7919H-AVR-05/10
http://www.atmel.com/avr
Device selection Guides, Datasheets, Application notes, Tools, Software, Consultants
http://www.avrfreaks.net
AVR Experts Discussion Forum, Selection Guides, Third Party Tools Information
Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property
right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND CONDITIONS OF SALES LOCATED ON
ATMEL’S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS
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Packaging Options
LQFP-144
20 x 20 mm
0.5 mm pitch
TQFP-100
14 x 14 mm
0.5 mm pitch
TQFP-64
10 x 10 mm
0.5 mm pitch
QFN-64
9 x 9 mm
0.5 mm pitch
QFN-48
7 x 7 mm
0.5 mm pitch
TQFP-48
7 x 7 mm
0.5 mm pitch
FFBGA-14 4
11 x 11 mm
0.8 mm pitch
TLLGA-48
5.5 x 5.5 mm
0.4 mm pitch
32-bit AVR UC3 Microcontrollers
HW Product of the year 2008
Embedded World (Germany)
32-bit AVR
Innovation of the Year 2007
EDN (USA)
32-bit AVR UC3 Microcontrollers
Hot Products 2007
EDN (USA)
32-bit AVR Microcontrollers
Product of the year 2006 & 2007
Elektronik (Germany)
Award-Winning Products
Mouser Electronics
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