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AT91SAM7S256-AI PDF预览

AT91SAM7S256-AI

更新时间： 2024-01-23 04:43:25
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 320K
描述
AT91 ARM THUMB-BASED MICROCONTROLLERS

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AT91SAM7S256-AI 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active包装说明：GREEN, MS-026, LQFP-64
Reach Compliance Code：compliantFactory Lead Time：8 weeks
风险等级：1.33Is Samacsys：N
具有ADC：YES地址总线宽度：
位大小：32CPU系列：ARM7
最大时钟频率：50 MHzDAC 通道：NO
DMA 通道：YES外部数据总线宽度：
JESD-30 代码：S-PQFP-G64JESD-609代码：e3
长度：10 mm湿度敏感等级：3
I/O 线路数量：32端子数量：64
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：QFP64,.47SQ,20
封装形状：SQUARE封装形式：FLATPACK, LOW PROFILE, FINE PITCH
电源：1.8,3.3 V认证状态：Not Qualified
RAM（字节）：65536ROM（单词）：262144
ROM可编程性：FLASH座面最大高度：1.6 mm
速度：55 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
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：0.5 mm端子位置：QUAD
宽度：10 mmuPs/uCs/外围集成电路类型：MICROCONTROLLER, RISC
Base Number Matches：1

AT91SAM7S256-AI 数据手册

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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,  
Flash Security Bit  
– Fast Flash Programming Interface for High Volume Production  
• 64 Kbytes 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  
• Reset Controller (RSTC)  
– Based on Power-on Reset and Low-power Factory-calibrated Brownout Detector  
– Provides External Reset Signal Shaping and Reset Source Status  
• Clock Generator (CKGR)  
– Low-power RC Oscillator, 3 to 20 MHz On-chip Oscillator and one PLL  
• Power Management Controller (PMC)  
AT91SAM7S256  
– Software Power Optimization Capabilities, Including Slow Clock Mode (Down to  
500 Hz) and Idle Mode  
– Three Programmable External Clock Signals  
Summary  
Preliminary  
• Advanced Interrupt Controller (AIC)  
– Individually Maskable, Eight-level Priority, Vectored Interrupt Sources  
– Two External Interrupt Sources and One Fast Interrupt Source, Spurious Interrupt  
Protected  
• 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 Signals to the System  
– Counter May Be Stopped While the Processor is in Debug State or in Idle Mode  
• Real-time Timer (RTT)  
– 32-bit Free-running Counter with Alarm  
– Runs Off the Internal RC Oscillator  
• One Parallel Input/Output Controller (PIOA)  
– Thirty-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  
• Eleven Peripheral Data Controller (PDC) Channels  
• One USB 2.0 Full Speed (12 Mbits per second) Device Port  
– On-chip Transceiver, 328-byte Configurable Integrated FIFOs  
• One Synchronous Serial Controller (SSC)  
– Independent Clock and Frame Sync Signals for Each Receiver and Transmitter  
– I²S Analog Interface Support, Time Division Multiplex Support  
– High-speed Continuous Data Stream Capabilities with 32-bit Data Transfer  
• Two Universal Synchronous/Asynchronous Receiver Transmitters (USART)  
– Individual Baud Rate Generator, IrDA Infrared Modulation/Demodulation  
– Support for ISO7816 T0/T1 Smart Card, Hardware Handshaking, RS485 Support  
– Full Modem Line Support on USART1  
• One Master/Slave Serial Peripheral Interface (SPI)  
6117AS–ATARM–20-Oct-04  
– 8- to 16-bit Programmable Data Length, Four External Peripheral Chip Selects  
Note: This is a summary document. A complete document  
is not available at this time. For more information, please  
contact your local Atmel sales office.  
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