AT91SAM7A3

更新时间： 2024-02-14 02:32:23

品牌	Logo	应用领域
爱特美尔 - ATMEL		微控制器
页数	文件大小	规格书
32页	312K
描述
AT91 ARM Thumb-based Microcontrollers

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技术参数
数据手册

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AT91SAM7A3 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
零件包装代码：	QFP	包装说明：	LFQFP, QFP100,.63SQ,20
针数：	100	Reach Compliance Code：	unknown
ECCN代码：	3A991.A.2	HTS代码：	8542.31.00.01
风险等级：	5.75	具有ADC：	YES
其他特性：	ALSO REQUIRES 3.3V SUPPLY	地址总线宽度：
位大小：	32	CPU系列：	ARM7
最大时钟频率：	50 MHz	DAC 通道：	NO
DMA 通道：	YES	外部数据总线宽度：
JESD-30 代码：	S-PQFP-G100	长度：	14 mm
湿度敏感等级：	3	I/O 线路数量：	62
端子数量：	100	最高工作温度：	85 °C
最低工作温度：	-40 °C	PWM 通道：	YES
封装主体材料：	PLASTIC/EPOXY	封装代码：	LFQFP
封装等效代码：	QFP100,.63SQ,20	封装形状：	SQUARE
封装形式：	FLATPACK, LOW PROFILE, FINE PITCH	峰值回流温度（摄氏度）：	260
电源：	1.8,3.3 V	认证状态：	Not Qualified
RAM（字节）：	32768	ROM（单词）：	65536
ROM可编程性：	FLASH	座面最大高度：	1.6 mm
速度：	60 MHz	子类别：	Microcontrollers
最大供电电压：	1.95 V	最小供电电压：	1.65 V
标称供电电压：	1.8 V	表面贴装：	YES
技术：	CMOS	温度等级：	INDUSTRIAL
端子形式：	GULL WING	端子节距：	0.5 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	14 mm	uPs/uCs/外围集成电路类型：	MICROCONTROLLER, RISC
Base Number Matches：	1

AT91SAM7A3 数据手册

Features

• Incorporates the ARM7TDMI ^®ARM^®Thumb^®Processor

– High-performance 32-bit RISC Architecture

– High-density 16-bit Instruction Set

– Leader in MIPS/Watt

• Embedded ICE In-circuit Emulation, Debug Communication Channel Support

• 256 Kbytes of Internal High-speed Flash, Organized in 1024 Pages of 256 Bytes

– Single Cycle Access at Up to 30 MHz in Worst Case Conditions

– Prefetch Buffer Optimizing Thumb Instruction Execution at Maximum Speed

– Page Programming Time: 4 ms, Including Page Auto-erase, Full Erase Time: 10 ms

– 10,000 Write Cycles, 10-year Data Retention Capability, Sector Lock Capabilities

• 32K Bytes of Internal High-speed SRAM, Single-cycle Access at Maximum Speed

• Memory Controller (MC)

AT91 ARM^®

Thumb^®-based

Microcontrollers

– Embedded Flash Controller, Abort Status and Misalignment Detection

– Memory Protection Unit

• Reset Controller (RSTC)

– Based on Three Power-on Reset Cells

– Provides External Reset Signal Shaping and Reset Sources Status

• Clock Generator (CKGR)

– Low-power RC Oscillator, 3 to 20 MHz On-chip Oscillator and One PLL

• Power Management Controller (PMC)

AT91SAM7A3

Summary

– Power Optimization Capabilities, including Slow Clock Mode (Down to 500 Hz), Idle

Mode, Standby Mode and Backup Mode

– Four Programmable External Clock Signals

• Advanced Interrupt Controller (AIC)

– Individually Maskable, Eight-level Priority, Vectored Interrupt Sources

– Four External Interrupt Sources and One Fast Interrupt Source, Spurious Interrupt

Protected

Preliminary

• Debug Unit (DBGU)

– 2-wire UART and Support for Debug Communication Channel interrupt,

Programmable ICE Access Prevention

• Periodic Interval Timer (PIT)

– 20-bit Programmable Counter plus 12-bit Interval Counter

• Windowed Watchdog (WDT)

– 12-bit key-protected Programmable Counter

– Provides Reset or Interrupt Signal to the System

– Counter May Be Stopped While the Processor is in Debug Mode or in Idle State

• Real-time Timer (RTT)

– 32-bit Free-running Counter with Alarm

– Runs Off the Internal RC Oscillator

• Two Parallel Input/Output Controllers (PIO)

– Sixty-two Programmable I/O Lines Multiplexed with up to Two Peripheral I/Os

– Input Change Interrupt Capability on Each I/O Line

– Individually Programmable Open-drain, Pull-up resistor and Synchronous Output

• Shutdown Controller (SHDWC)

– Programmable Shutdown Pin and Wake-up Circuitry

• Four 32-bit Battery Backup Registers for a Total of 16 Bytes

• One 8-channel 20-bit PWM Controller (PMWC)

• One USB 2.0 Full Speed (12 Mbits per Second) Device Port

– On-chip Transceiver, 2-Kbyte Configurable Integrated FIFOs

• Nineteen Peripheral Data Controller (PDC) Channels

• Two CAN 2.0B Active Controllers, Supporting 11-bit Standard and 29-bit Extended

Identifiers

– 16 Fully Programmable Message Object Mailboxes, 16-bit Time Stamp Counter

• Two 8-channel 10-bit Analog-to-Digital Converter

6042AS–ATARM–23-Dec-04

Note: This is a summary document. A complete document

is available on our Web site at www.atmel.com.

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与AT91SAM7A3相关器件

型号	品牌	描述	获取价格	数据表
AT91SAM7A3_04	ATMEL	AT91 ARM Thumb-based Microcontrollers	获取价格
AT91SAM7A3_06	ATMEL	Incorporates the ARM7TDMI ARM Thumb Processor	获取价格
AT91SAM7A3-AJ	ATMEL	AT91 ARM Thumb-based Microcontrollers	获取价格
AT91SAM7A3-AU	ATMEL	Incorporates the ARM7TDMI ARM Thumb Processor	获取价格
AT91SAM7L128	ATMEL	AT91 ARM Thumb-based Microcontroller	获取价格
AT91SAM7L128-AU	ATMEL	AT91 ARM Thumb-based Microcontroller	获取价格

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