AT32UC3A0256 带有256KB系统内可编程Flash存储器

爱特梅尔的AVR. 微控制器有一个RISC 核心运行单周期指令和限制对外在组分的需要的一个明确定义的I/O 结构。内部振荡器, 定时器, UART, SPI, 上拉电阻, 脉冲宽度调制, ADC, 模拟比较器和看门狗定器是AVR 设备里的一些特性。AVR 指令可协调用于减小程序的规模,不论代码是用C 或汇编写的。AVR有内嵌于芯片的系统可编程的Flash和EEPROM, 这是为了优化成本和使产品迅速面向市场的一个理想选择。

32-bit Flash Microcontroller based on AVR32 UC core featuring 256K bytes Flash, 64 KBytes SRAM, 10/100 Ethernet MAC, full-speed (12 Mbps) USB 2.0 with On-The-Go (OTG) capability.
The AT32UC3A0256 also feature SRAM/SDRAM external bus interface.
The AT32UC3 devices deliver 91 Dhrystone MIPS (DMIPS) at 66 MHz and consume only 40 mA at 3.3V.

The AT32UC3A is a complete System-On-Chip microcontroller based on the AVR32 UC RISC processor running at frequencies up to 66 MHz. 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.

The processor implements a Memory Protection Unit (MPU) and a fast and flexible interrupt controller for supporting modern operating systems and real-time operating systems. Higher computation capabilities are achievable using a rich set of DSP instructions.

The AT32UC3A incorporates on-chip Flash and SRAM memories for secure and fast access. For applications requiring additional memory, an external memory interface is provided on AT32UC3A0 derivatives. The Peripheral Direct Memory Access controller (PDCA) enables data transfers between peripherals and memories without processor involvement. PDCA drastically reduces processing overhead when transferring continuous and large data streams between modules within the MCU.

The PowerManager improves design flexibility and security: the on-chip Brown-Out Detector monitors the power supply, the CPU runs from the on-chip RC oscillator or from one of external oscillator sources, a Real-Time Clock and its associated timer keeps track of the time. The Timer/Counter includes three identical 16-bit timer/counter channels. Each channel can be independently programmed to perform frequency measurement, event counting, interval measurement, pulse generation, delay timing and pulse width modulation.

The PWM modules provides seven independent channels with many configuration options including polarity, edge alignment and waveform non overlap control. One PWM channel can trigger ADC conversions for more accurate close loop control implementations.

The AT32UC3A also features many communication interfaces for communication intensive applications. In addition to standard serial interfaces like UART, SPI or TWI, other interfaces like flexible Synchronous Serial Controller, USB and Ethernet MAC are available. The Synchronous Serial Controller provides easy access to serial communication protocols and audio standards like I2S. The Full-Speed USB 2.0 Device interface supports several USB Classes at the same time thanks to the rich End-Point configuration. The On-The-GO (OTG) Host interface allows device like a USB Flash disk or a USB printer to be directly connected to the processor. The media-independent interface (MII) and reduced MII (RMII) 10/100 Ethernet MAC module provides on-chip solutions for network-connected devices.

AT32UC3A integrates a class 2+ Nexus 2.0 On-Chip Debug (OCD) System, with non-intrusive real-time trace, full-speed read/write memory access in addition to basic runtime control.

AT32UC3A0256 特性

? 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 1.49 DMIPS / MHz
Up to 91 DMIPS Running at 66 MHz from Flash (1 Wait-State)
Up to 49 DMIPS Running at 33MHz from Flash (0 Wait-State)
– Memory Protection Unit
? Multi-hierarchy Bus System
– High-Performance Data Transfers on Separate Buses for Increased Performance
– 15 Peripheral DMA Channels Improves Speed for Peripheral Communication
? Internal High-Speed Flash
– 512K Bytes, 256K Bytes, 128K Bytes Versions
– Single Cycle Access up to 33 MHz
– Prefetch Buffer Optimizing Instruction Execution at Maximum Speed
– 4ms 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, Single-Cycle Access at Full Speed
– 64K Bytes (512KB and 256KB Flash), 32K Bytes (128KB Flash)
? External Memory Interface on AT32UC3A0 Derivatives
– SDRAM / SRAM Compatible Memory Bus (16-bit Data and 24-bit Address Buses)
? 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) allowing
Independant CPU Frequency from USB Frequency
– Watchdog Timer, Real-Time Clock Timer
? Universal Serial Bus (USB)
– Device 2.0 Full Speed and On-The-Go (OTG) Low Speed and Full Speed
– Flexible End-Point Configuration and Management with Dedicated DMA Channels
– On-chip Transceivers Including Pull-Ups
? Ethernet MAC 10/100 Mbps interface
– 802.3 Ethernet Media Access Controller
– Supports Media Independent Interface (MII) and Reduced MII (RMII)
? One Three-Channel 16-bit Timer/Counter (TC)
– Three External Clock Inputs, PWM, Capture and Various Counting Capabilities
? One 7-Channel 16-bit Pulse Width Modulation Controller (PWM)
? Four Universal Synchronous/Asynchronous Receiver/Transmitters (USART)
– Independant 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
? One Master/Slave Two-Wire Interface (TWI), 400kbit/s I2C-compatible
? One 8-channel 10-bit Analog-To-Digital Converter
? 16-bit Stereo Audio Bitstream
– Sample Rate Up to 50 KHz
? On-Chip Debug System (JTAG interface)
– Nexus Class 2+, Runtime Control, Non-Intrusive Data and Program Trace
? 100-pin TQFP (69 GPIO pins), 144-pin LQFP (109 GPIO pins) , 144 BGA (109 GPIO pins)
? 5V Input Tolerant I/Os
? Single 3.3V Power Supply or Dual 1.8V-3.3V Power Supply

AT32UC3A0256 订购型号

AT32UC3A0256 技术支持

1. ATMEL 爱特梅尔AVR32 微控制器AT32UC3A0256 数据手册DataSheet 下载. PDF（完整版）
2. ATMEL 爱特梅尔AVR32 微控制器AT32UC3A0256 数据手册DataSheet 下载. PDF（简洁版）
3. ATMEL 爱特梅尔半导体公司产品线. PDF (编号:Atmel Products)
4. Atmel 爱特梅尔AVR32 微控制器简介.PDF
5. AVR32UC技术参考手册 .PDF
6. AVR32 UC3 USB DFU Bootloader (28 pages, revision A, updated 7/07)
7. AVR32架构手册 .PDF
8. 相关产品选型（ Excel 文档格式）
9. ATMEL 爱特梅尔公司全线产品目录. pdf