AT91SAM7X256-AU 32位ARM单片机LQFP-100封装

Status Production
Flash (Bytes) 256K
SRAM (Bytes) 64K
Ethernet MAC 10/100 1
RTC/RTT -/1
10-bit ADC Channels 8
Peripheral DMA Channels 11
Max. Clock Speed (MHz) 55
I/O Pins 62
SDRAM Interface 1
Enhanced USART 2
USART/DBGU -/1
SPI 2
TWI 1
SSC 1
USB Device FS
PWM Controller 4
High Current Pads 4
16-bit Timers 3
Period Interval Timer 1
Watchdog Timer 1
Power-On-Reset 1
Brown Out Detection 1
On-chip RC Oscillator 1
Crystal Oscillator/PLL 1/1
ARM Core 7TDMI
CAN 1
I/O Voltage Domain (V) 3.3
In-System Programming Y
Single Supply Y
Pb-Free Packages LQFP 100
TFBGA 100
AT91SAM7X256-AU 描述

The AT91SAM7X256 is a Flash microcontroller with integrated Ethernet, USB and CAN interface, based on the 32-bit ARM7TDMI RISC processor. It features 256K bytes of embedded high-speed Flash with sector lock capabilities and a security bit, and 64K bytes of SRAM. The integrated proprietary SAM-BA Boot Assistant enables in-system programming of the embedded Flash.

Its extensive peripheral set includes a USB 2.0 Full Speed Device Port, Ethernet MAC 10/100 base T, CAN 2.0A and 2.0B compliant Controller, USARTs, SPI, SSC, TWI and an 8-channel 10-bit ADC. Its Peripheral DMA Controller channels eliminate processor bottlenecks during peripheral-to-memory transfers. Its System Controller manages interrupts, clocks, power, time, debug and reset, significantly reducing the external chip count and minimizing power consumption. In industrial temperature, worse case conditions the maximum clock frequency is 55MHz. Typical core supply is 1.8V, I/Os are supplied at 1.8V or 3.3V and are 5V tolerant. An integrated Voltage Regulator permits single supply at 3.3V. The AT91SAM7X256 is supplied in a 100-lead LQFP Green package. It is supported by an Evaluation Board and extensive application development tools. The AT91SAM7X256 is a general-purpose microcontroller, particularly suited to real-time embedded control applications that require USB connectivity as well as Ethernet, CAN and/or ZigBee networking.

AT91SAM7X256-AU 特性
AT91SAM7X256-AU 订购型号
Ordering Code Package Package Type Operating Temperature Range
AT91SAM7X256-AU LQFP 100 Green Industrial (-40° C to 85° C)
AT91SAM7X256-CU TFBGA 100 Green Industrial (-40° C to 85° C)
AT91SAM7X256B-AU LQFP 100 Green Industrial (-40° C to 85° C)
AT91SAM7X256B-CU TFBGA 100 Green Industrial (-40° C to 85° C)
AT91SAM7X256-AU 应用技术支持与电子电路设计开发资源下载
  1. AT91SAM7X256 数据手册DataSheet 下载. PDF(简洁版)
  2. AT91SAM7X256 数据手册DataSheet 下载. PDF(完整版)
  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.