AT91系列 ARM 微控制器 AT91M55800A

AT91M55800A 概述

爱特梅尔的AT91 ARM Thumb微控制器能提供8位微控制器用户期望的32位的性能，而仍在他的严格的系统预算之内。额外性能使软件中创新而非发展通信、压缩或控制协议。依据工业标准的ARM处理器核心建立一个微控制器产品系列保证了顾客的长期可及性。ARM处理器的普遍采用使大量的合格软件IP产品得到发展，减少了新产品的上市时间。AT91 微控制器以低功率, 实时控制应用为目标。它们已经被成功地设计入工业自动化系统、MP-3/WMA 播放器、数据采集产品、传呼器, 点销售终端、医疗设备, GPS 和网络系统。

The AT91M55800A is a member of the Atmel AT91 16/32-bit microcontroller family, which is based on the ARM7TDMI processor core. This processor has a high-performance 32-bit RISC architecture with a high-density 16-bit instruction set and very low power consumption. In addition, a large number of internally banked registers result in very fast exception handling, making the device ideal for real-time control applications.

AT91M55800A 特性

• Utilizes the ARM7TDMI? ARM? Thumb? Processor Core
  – High-performance 32-bit RISC Architecture
  – High-density 16-bit Instruction Set
  – Leader in MIPS/Watt
  – EmbeddedICE? (In-Circuit Emulation)
• 8K Bytes Internal SRAM
• Fully-programmable External Bus Interface (EBI)
  – Maximum External Address Space of 128M Bytes
  – 8 Chip Selects
  – Software Programmable 8/16-bit External Databus
• 8-level Priority, Individually Maskable, Vectored Interrupt Controller
  – 7 External Interrupts, Including a High-priority, Low-latency Interrupt Request
• 58 Programmable I/O Lines
• 6-channel 16-bit Timer/Counter
  – 6 External Clock Inputs and 2 Multi-purpose I/O Pins per Channel
• 3 USARTs
• Master/Slave SPI Interface
  – 8-bit to 16-bit Programmable Data Length
  – 4 External Slave Chip Selects
• Programmable Watchdog Timer
• 8-channel 10-bit ADC
• 2-channel 10-bit DAC
• Clock Generator with On-chip Main Oscillator and PLL for Multiplication
  – 3 to 20 MHz Frequency Range Main Oscillator
• Real-time Clock with On-chip 32 kHz Oscillator
  – Battery Backup Operation and External Alarm
• 8-channel Peripheral Data Controller for USARTs and SPIs
• Advanced Power Management Controller (APMC)
  – Normal, Wait, Slow, Standby and Power-down modes
• IEEE? 1149.1 JTAG Boundary-scan on all Digital Pins
• Fully Static Operation: 0 Hz to 33 MHz Internal Frequency Range
  at VDDCORE = 3.0V, 85°C
• 2.7V to 3.6V Core Operating Range, 2.7V to 5.5V I/O Operating Range
• 2.7V to 3.6V Analog Operating Range
• 1.8V to 3.6V Backup Battery Operating Range
• 2.7V to 3.6V Oscillator and PLL Operating Range
• -40° C to +85°C Temperature Range
• Available in a 176-lead LQFP (Green) or 176-ball BGA Package (RoHS-compliant)

AT91M55800A 订购型号

AT91M55800A 技术支持

1. AT91M55800A 数据手册DataSheet 下载 . PDF(完整版)
2. AT91M55800A 数据手册DataSheet 下载 . PDF(简洁版)
3. ARM7TDMI 技术白皮书
4. AT91SAM 系列产品选型指南(Brochure, 2 pages, revision E, updated 2/09)
   Product selection guide to Atmel's AT91SAM microcontrollers that give immediate access to market-leading ARM processors.
5. Atmel's ARM-based Microcontroller Excels in Real-Time (White Paper, 6 pages, revision A, updated 3/01)
   Applications such as mobile communicators, PDAs, solid-state music players and internet appliances demand the best possible real-time performance. Atmel's AT91 series of ARM-based microcontrollers incorporates a number of advanced features that enhance the real-time performance of the ARM7TDMI core, making it ideal for applications of this nature.