Description
The AT32UC3A3 is a complete System-On-Chip microcontroller based on
the AVR32 UC RISC processor running at frequencies up to 66MHz.
AVR32 UC is a high-performance 32-bit RISC microprocessor core,
designed for cost-sensitive embedded applications, with particular
emphasis on low power consumption, high code density and high
performance.
Features
• High Performance, Low Power AVR®32 UC 32-Bit Microcontroller
– Compact Single-Cycle RISC Instruction Set Including DSP
Instruction Set
– Read-Modify-Write Instructions and Atomic Bit Manipulation
– Performing 1.49DMIPS/MHz
• Up to 91DMIPS Running at 66MHz from Flash (1 Wait-State)
• Up to 54 DMIPS Running at 36MHz from Flash (0 Wait-State)
– Memory Protection Unit
• Multi-Layer Bus System
– High-Performance Data Transfers on Separate Buses for Increased
Performance
– 8 Peripheral DMA Channels (PDCA) Improves Speed for Peripheral
Communication
– 4 generic DMA Channels for High Bandwidth Data Paths
• Internal High-Speed Flash
– 256KBytes, 128KBytes, 64KBytes versions
– Single-Cycle Flash Access up to 36MHz
– Prefetch Buffer Optimizing Instruction Execution at Maximum Speed
– 4 ms Page Programming Time and 8ms Full-Chip Erase Time
– 100,000 Write Cycles, 15-year Data Retention Capability
– Flash Security Locks and User Defined Configuration Area
• Internal High-Speed SRAM
– 64KBytes Single-Cycle Access at Full Speed, Connected to CPU
Local Bus
– 64KBytes on the Multi-Layer Bus System
• Interrupt Controller
– Autovectored Low Latency Interrupt Service with Programmable
Priority
• System Functions
– Power and Clock Manager Including Internal RC Clock and One 32KHz
Oscillator
– Two Multipurpose Oscillators and Two Phase-Lock-Loop (PLL),
– Watchdog Timer, Real-Time Clock Timer
• External Memories
– Support SDRAM, SRAM, NandFlash (1-bit and 4-bit ECC), Compact
Flash
– Up to 66 MHz
• External Storage device support
– MultiMediaCard (MMC), Secure-Digital (SD), SDIO V1.1
– CE-ATA, FastSD, SmartMedia, Compact Flash
– Memory Stick: Standard Format V1.40, PRO Format V1.00, Micro
– IDE Interface
• One Advanced Encryption System (AES) for AT32UC3A3256S,
AT32UC3A3128S and AT32UC3A364S
– 256-, 192-, 128-bit Key Algorithm, Compliant with FIPS PUB 197
Specifications
– Buffer Encryption/Decryption Capabilities
• Universal Serial Bus (USB)
– High-Speed USB (480Mbit/s) Device/MiniHost with On-The-Go (OTG)
– Flexible End-Point Configuration and Management with Dedicated
DMA Channels
– On-Chip Transceivers Including Pull-Ups
• One 8-channel 10-bit Analog-To-Digital Converter, multiplexed
with Digital IOs.
• Two Three-Channel 16-bit Timer/Counter (TC)
• Four Universal Snchronous/Asynchronous Receiver/Transmitters
(USART)
– Independent Baudrate Generator, Support for SPI, IrDA and ISO7816
interfaces
– Support for Hardware Handshaking, RS485 Interfaces and Modem Line
• Two Master/Slave Serial Peripheral Interfaces (SPI) with Chip
Select Signals
• One Synchronous Serial Protocol Controller
– Supports I2S and Generic Frame-Based Protocols
• Two Master/Slave Two-Wire Interface (TWI), 400kbit/s
I2C-compatible
• On-Chip Debug System (JTAG interface)
– Nexus Class 2+, Runtime Control, Non-Intrusive Data and Program
Trace
• 110 General Purpose Input/Output (GPIOs)
– Standard or High Speed mode
– Toggle capability: up to 66MHz
• 144-pin TBGA and LQFP
• Single 3.3V Power Supply
