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AT91SAM7A3

订购信息

型号 封装 在线定购
AT91SAM7A3-AU(查看) LQFP100

引脚布局

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技术资料—— AT91SAM7A3 PDF技术资料

AT91SAM7A3 概述

The AT91SAM7A3 is a Flash microcontroller based on the 32-bit ARM7TDMI RISC processor optimized for embedded control. It features 256K bytes of embedded high-speed Flash and 32K bytes of SRAM.

The AT91SAM7A3's extensive peripheral set includes two CAN 2.0B Controllers, 8-channel 20-bit PWM Controller, nine 16-bit general purpose Timers, 16-channel 10-bit ADCs, a USB 2.0 Full Speed Device Port, MCI, USARTs, SPI, SSC and TWI. Its Peripheral DMA Controller channels eliminate processor bottlenecks during peripheral-to-memory transfers. The AT91SAM7A3'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 60MHz. 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 AT91SAM7A3 is supplied in a 100-lead LQFP Green package. It is supported by an Evaluation Board and extensive application development tools.

The AT91SAM7A3 is a general-purpose microcontroller, particularly suited to real-time embedded industrial control applications that require CAN networking.

AT91SAM7A3 参数
AT91SAM7A3 系统
CPU ARM7TDMI, 60MHz
Debug JTAG
MMU/MPU MPU
AT91SAM7A3 存储器
Flash (Bytes) 256K
SRAM (Bytes) 32K
External Bus Interface -
AT91SAM7A3 性能参数
CAN 2
RTC/RTT -/1
10-bit ADC Channels 16
Peripheral DMA Channels 19
I/O Pins 62
Enhanced USART 3
USART/DBGU -/1
SPI 2
TWI 1
SSC 2
MCI 1
USB Device FS
PWM Controller 8
16-bit Timers 9
Period Interval Timer 1
Watchdog Timer 1
Power-On-Reset 1
On-chip RC Oscillator 1
Crystal Oscillator/PLL 1/1
I/O Voltage Domain (V) 3.3
Single Supply Y
AT91SAM7A3 封装与引脚
LQFP100