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AT91SAM7X256

订购信息

型号 封装 在线定购
AT91SAM7X256B-AU(查看) LQFP100

引脚布局

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技术资料—— AT91SAM7X256 PDF技术资料

AT91SAM7X256 概述

The AT91SAM7X256 is a Flash microcontroller with integrated Ethernet, USB and CAN interface, based on the 32-bit ARM7TDMI RISC processor. The AT91SAM7X256 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.

The AT91SAM7X256's 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. The AT91SAM7X256's 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 参数
AT91SAM7X256 系统
CPU ARM7TDMI, 55MHz
Debug JTAG
AT91SAM7X256 存储器
Flash (Bytes) 256K
SRAM (Bytes) 64K
Ext. Bus. -
Boot Flash, SAM-BA ROM
AT91SAM7X256 性能参数
Ethernet MAC 10/100 1
CAN 1
RTC/RTT -/1
10-bit ADC Channels 8
Peripheral DMA Channels 11
I/O Pins 62
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
I/O Voltage Domain (V) 3.3
In-System Programming Y
Single Supply Y
AT91SAM7X256 封装与引脚
TFBGA100, LQFP100