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AT91SAM7S32 PDF预览

AT91SAM7S32

更新时间： 2024-01-20 01:00:57
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
446页 2736K
描述
AT91 ARM THUMB BASED MICROCONTROLLERS

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AT91SAM7S32 技术参数

是否Rohs认证： 符合生命周期：Obsolete
零件包装代码：QFN包装说明：HVQCCN, LCC48,.27SQ,20
针数：48Reach Compliance Code：unknown
ECCN代码：3A001.A.3HTS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：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-PQCC-N48长度：7 mm
I/O 线路数量：21端子数量：48
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：HVQCCN封装等效代码：LCC48,.27SQ,20
封装形状：SQUARE封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
电源：1.8,3.3 V认证状态：Not Qualified
RAM（字节）：8192ROM（单词）：32768
ROM可编程性：FLASH座面最大高度：0.9 mm
速度：55 MHz子类别：Microcontrollers
最大压摆率：3 mA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：NO LEAD
端子节距：0.5 mm端子位置：QUAD
宽度：7 mmuPs/uCs/外围集成电路类型：MICROCONTROLLER, RISC
Base Number Matches：1

AT91SAM7S32 数据手册

 浏览型号AT91SAM7S32的Datasheet PDF文件第5页浏览型号AT91SAM7S32的Datasheet PDF文件第6页浏览型号AT91SAM7S32的Datasheet PDF文件第7页浏览型号AT91SAM7S32的Datasheet PDF文件第9页浏览型号AT91SAM7S32的Datasheet PDF文件第10页浏览型号AT91SAM7S32的Datasheet PDF文件第11页 
Power Considerations  
Power Supplies  
The AT91SAM7S32 has six types of power supply pins and integrates a voltage regula-  
tor, allowing the device to be supplied with only one voltage. The six power supply pin  
types are:  
•
VDDIN pin. It powers the voltage regulator; voltage ranges from 3.0V to 3.6V, 3.3V  
nominal. If the voltage regulator is not used, VDDIN should be connected to GND.  
•
•
VDDOUT pin. It is the output of the 1.8V voltage regulator.  
VDDIO pin. It powers the I/O lines and the USB transceivers; dual voltage range is  
supported. Ranges from 3.0V to 3.6V, 3.3V nominal.  
•
•
VDDFLASH pin. It powers a part of the Flash and is required for the Flash to  
operate correctly; voltage ranges from 3.0V to 3.6V, 3.3V nominal.  
VDDCORE pins. They power the logic of the device; voltage ranges from 1.65V to  
1.95V, 1.8V typical. It can be connected to the VDDOUT pin with decoupling  
capacitor. VDDCORE is required for the device, including its embedded Flash, to  
operate correctly.  
•
VDDPLL pin. It powers the oscillator and the PLL. It can be connected directly to the  
VDDOUT pin.  
No separate ground pins are provided for the different power supplies. Only GND pins  
are provided and should be connected as shortly as possible to the system ground  
plane.  
Power Consumption  
Voltage Regulator  
The AT91SAM7S32 has a static current of less than 60 µA on VDDCORE at 25°C,  
including the RC oscillator, the voltage regulator and the power-on reset when the  
brownout detector is deactivated. Activating the brownout detector adds 20 µA static  
current.  
The dynamic power consumption on VDDCORE is less than 50 mA at full speed when  
running out of the Flash. Under the same conditions, the power consumption on  
VDDFLASH does not exceed 10 mA.  
The AT91SAM7S32 embeds a voltage regulator that is managed by the System  
Controller.  
In Normal Mode, the voltage regulator consumes less than 100 µA static current and  
draws 100 mA of output current.  
The voltage regulator also has a Low-power Mode. In this mode, it consumes less than  
20 µA static current and draws 1 mA of output current.  
Adequate output supply decoupling is mandatory for VDDOUT to reduce ripple and  
avoid oscillations. The best way to achieve this is to use two capacitors in parallel: one  
external 470 pF (or 1 nF) NPO capacitor must be connected between VDDOUT and  
GND as close to the chip as possible. One external 2.2 µF (or 3.3 µF) X7R capacitor  
must be connected between VDDOUT and GND.  
Adequate input supply decoupling is mandatory for VDDIN in order to improve startup  
stability and reduce source voltage drop. The input decoupling capacitor should be  
placed close to the chip. For example, two capacitors can be used in parallel: 100 nF  
NPO and 4.7 µF X7R.  
8
AT91SAM7S32 Preliminary  
6071A–ATARM–28-Oct-04  
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