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AT91SAM7SE256

订购信息

型号 封装 在线定购
AT91SAM7SE256-AU(查看) LQFP128

引脚布局

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技术资料—— AT91SAM7SE256 PDF技术资料

AT91SAM7SE256 概述

The AT91SAM7SE256 is a Flash microcontroller with external memory bus based on the 32-bit ARM7TDMI RISC processor. The AT91SAM7SE256 features 256K bytes of embedded high-speed Flash with sector lock capabilities and a security bit, and 32K bytes of SRAM. The integrated proprietary SAM-BA Boot Assistant enables in-system programming of the embedded Flash. The external bus interface supports SDRAM and static memories including CompactFlash and ECC-enabled NAND Flash.

The AT91SAM7SE256's extensive peripheral set includes a USB 2.0 Full Speed Device Port, 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 AT91SAM7SE256'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 48MHz. Typical core supply is 1.8V, I/Os are supplied at 1.8V or 3.3V. An integrated Voltage Regulator permits single supply at 3.3V. The AT91SAM7SE256 is supplied in a 128-lead LQFP Green Package, or a 144-ball Green Package. It is supported by an Evaluation Board and extensive application development tools.

The AT91SAM7SE256 is a general-purpose microcontroller, particularly suited to applications requiring high performance, USB connectivity and extended on- and off-chip memory.

AT91SAM7SE256 参数
AT91SAM7SE256 系统
CPU ARM7TDMI, 48MHz
Debug JTAG
MMU/MPU MPU
AT91SAM7SE256 存储器
Flash (Bytes) 256K
SRAM (Bytes) 32K
External Bus Interface 1
Boot Flash, SAM-BA ROM
AT91SAM7SE256 性能参数
RTC/RTT -/1
10-bit ADC Channels 8
Peripheral DMA Channels 11
I/O Pins 88
SDRAM Interface 1
NAND Flash & ECC 1/1
Enhanced USART 2
USART/DBGU -/1
SPI 1
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
AT91SAM7SE256 封装与引脚
LQFP128, LFBGA144