AT91M40800 32位ARM单片机

Status Production
SRAM (Bytes) 8K
External Bus Interface 1
Peripheral DMA Channels 4
Max. Clock Speed (MHz) 40
I/O Pins 32
USART/DBGU 2/-
16-bit Timers 3
Watchdog Timer 1
ARM Core 7TDMI
I/O Voltage Domain (V) 1.8/3.3
Single Supply Y
Pb-Free Packages LQFP 100
AT91M40800 描述

The AT91M40800 features 8K bytes of on-chip SRAM, an External Bus Interface, a 3-channel Timer/Counter, 2 USARTs, a Watchdog Timer and advanced power-saving features.

BSDL software files are not available. The AT91X408XX Series does not feature Boundary-scan cells on digital pins. The JTAG/ICE port is only used as debug port.

The AT91M40800 microcontroller 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.

The AT91M40800 microcontroller features a direct connection to off-chip memory, including Flash, through the fully-programmable External Bus Interface (EBI). An eight-level priority vectored interrupt controller, in conjunction with the Peripheral Data Controller, significantly improves the real-time performance of the device.

The device is manufactured using Atmel’s high-density CMOS technology. By combining the ARM7TDMI processor core with on-chip high-speed memory and a wide range of peripheral functions on a monolithic chip, the AT91M40800 is a powerful microcontroller that offers a flexible, cost-effective solution to many compute-intensive embedded control applications.

AT91M40800 主要参数
  1. Status:Production
  2. SRAM (Bytes):8K
  3. USART/DBGU  :2/-
  4. Max. Clock Speed ( :40
  5. I/O Pins  :32
  6. External Bus Inter  :1
  7. Peripheral DMA Cha   :4
  8. 16-bit Timers :3
  9. Watchdog Timer  :1
  10. ARM Core   :7TDMI
  11. I/O Voltage Domain  :1.8/3.3
  12. Single Supply   :Y
  13. 绿色封装:LQFP 100
AT91M40800 特性
AT91M40800 订购型号
Ordering Code Package Package Type Operating Temperature Range
AT91M40800-33AU LQFP100 Green Industrial (-40° C to 85° C)
AT91M40800 应用技术支持与电子电路设计开发资源下载
  1. AT91M40800 数据手册DataSheet 下载. PDF
  2. AT91M40800 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.