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AME8501BEFTAF40 PDF预览

AME8501BEFTAF40

更新时间： 2024-11-18 23:12:35
品牌 Logo 应用领域
安茂微 - AME /
页数 文件大小 规格书
14页 411K
描述
UProcessor Supervisory

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中文翻译

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AME8501BEFTAF40 技术参数

生命周期：Contact Manufacturer包装说明：,
Reach Compliance Code：compliant风险等级：5.72
Base Number Matches：1

AME8501BEFTAF40 数据手册

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AME, Inc.  
µProcessor Supervisory  
AME8500 / 8501  
n General Description  
n Typical Operating Circuit  
The AME8500 family allows the user to customize the  
CPU reset function without any external components.  
The user has a large choice of reset voltage thresholds,  
reset time intervals, and output driver configurations, all  
of which are preset at the factory. Each wafer is trimmed  
to the customer's specifications.  
*
2
VCC  
VCC  
AME8500  
Processor  
RESET  
Input  
RESET / RESET  
These circuits monitor the power supply voltage of µP  
based systems. When the power supply voltage drops  
below the voltage threshold a reset is asserted immedi-  
ately (within an interval TD1). The reset remains asserted  
after the supply voltage rises above the voltage threshold  
for a time interval, TD2 . The reset output may be either  
active high (RESET) or active low (RESETB). The reset  
output may be configured as either push/pull or open  
drain. The state of the reset output is guaranteed to be  
correct for supply voltages greater than 1V.  
GND  
GND  
3
Note: * External pull-up resistor is required if open-  
drain output is used. 10 kΩ is recommended.  
The AME8501 includes all the above functionality plus  
an overtemperature shutdown function. When the ambi-  
ent temperature exceeds 80oC a reset is asserted and  
remains asserted until the temperature falls below 60oC.  
n Block Diagram  
AME8500 with Push-Pull RESET  
Space saving SOT23 packages and micropower qui-  
escent current (<3.0µA) make this family a natural for  
portable battery powered equipment.  
VDD  
I1  
R1  
R2  
P1  
N1  
n Features  
l Small packages: SOT-23, SOT-89  
Delay  
RESET  
l 11 voltage threshold options  
VREF  
l Tight voltage threshold tolerance ---±1.50%  
l 5 reset interval options  
GND  
l 4 output configuration options  
l Wide temperature range -------- -40oC to 85oC  
l Low temperature coefficient --- 100ppm/oC(max)  
l Low quiescent current < 3.0µA  
l Thermal shutdown option (AME8501)  
AME8500 with Push-Pull RESET  
VDD  
I1  
R1  
n Applications  
P1  
l Portable electronics  
RESET  
Delay  
l Power supplies  
R2  
VREF  
l Computer peripherals  
l Data acquisition systems  
l Applications using CPUs  
l Consumer electronics  
N1  
GND  
1
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