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AT91SAM7S128

订购信息

型号 封装 在线定购
AT91SAM7S128-AU-001(查看) LQFP64

引脚布局

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技术资料—— AT91SAM7S128 PDF技术资料

AT91SAM7S128 概述

The AT91SAM7S128 is a low pincount Flash microcontroller based on the 32-bit ARM7TDMI RISC processor. The AT91SAM7S128 features 128K 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 AT91SAM7S128'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 AT91SAM7S128'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 AT91SAM7S128 is supplied in a 64-lead LQFP or QFN Green package. It is supported by an Evaluation Board and extensive application development tools.

The AT91SAM7S128 is a general-purpose microcontroller, providing an ideal migration path for 8-bit applications requiring additional performance, USB connectivity and extended memory.

AT91SAM7S128 参数
AT91SAM7S128 系统
CPU ARM7TDMI, 55MHz
Debug JTAG
AT91SAM7S128 存储器
Flash (Bytes) 128K
SRAM (Bytes) 32K
Ext. Bus. -
Boot Flash, SAM-BA ROM
AT91SAM7S128 性能参数
Image Sensor Interface -
RTC/RTT -/1
10-bit ADC Channels 8
Peripheral DMA Channels 11
I/O Pins 32
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
AT91SAM7S128 封装与引脚
QFN64, LQFP64