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AS1914SF-T

更新时间： 2024-01-02 23:20:03
品牌 Logo 应用领域
艾迈斯 - AMSCO 微处理器光电二极管监控输入元件
页数 文件大小 规格书
15页 384K
描述
Dual-Voltage Microprocessor Supervisory Circuits with Manual Reset and Watchdog

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AS1914SF-T 技术参数

生命周期：Contact Manufacturer零件包装代码：SOT-23
包装说明：LSSOP,针数：6
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.33
其他特性：MANUAL RESET INPUT可调阈值：YES
模拟集成电路 - 其他类型：POWER SUPPLY MANAGEMENT CIRCUITJESD-30 代码：R-PDSO-G6
长度：2.925 mm信道数量：1
功能数量：1端子数量：6
最高工作温度：125 °C最低工作温度：-40 °C
封装主体材料：PLASTIC/EPOXY封装代码：LSSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
认证状态：Not Qualified座面最大高度：1.45 mm
最大供电电压 (Vsup)：3.6 V最小供电电压 (Vsup)：1.8 V
表面贴装：YES温度等级：AUTOMOTIVE
端子形式：GULL WING端子节距：0.95 mm
端子位置：DUAL宽度：1.625 mm
Base Number Matches：1

AS1914SF-T 数据手册

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Data Sheet  
AS1910 - AS1915  
Dual-Voltage Microprocessor Supervisory Circuits  
with Manual Reset and Watchdog  
1 General Description  
2 Key Features  
ꢀ
Primary VCC Supervisory Range: +1.8 to +3.6V  
The AS1910 - AS1915 microprocessor supervisory cir-  
cuits were designed to generate a reset when one of the  
two monitored supply voltages falls below a factory-  
trimmed threshold, and to maintain the reset for a mini-  
mum timeout period when both supplies are above their  
reset thresholds. Guaranteed to be in the correct state  
for VCC higher than +1.0V, these devices are ideal for  
multiple-voltage systems with strict monitoring require-  
ments.  
ꢀ
Secondary VCC Supervisory Range: +0.9 to +2.5V  
(AS1913/AS1914/AS1915)  
ꢀ
User-Adjustable Threshold Down to +0.63V  
(AS1910/AS1911/AS1912)  
ꢀ
ꢀ
ꢀ
ꢀ
Guaranteed Reset Valid Down to VCC = +1.0V  
Reset Timeout Delay: 215ms  
Manual Reset Input  
The AS1913/AS1914/AS1915 feature factory-trimmed  
thresholds to monitor a primary voltage between 1.8 and  
3.6V, and a secondary voltage between 0.9 and 2.5V.  
For the AS1910/AS1911/AS1912, a secondary monitor-  
ing voltage can be user-adjusted via an external resistor  
divider down to 0.6V.  
Three Reset Output Types  
- Active-High Push/Pull  
- Active-Low Push/Pull  
- Active-Low Open-Drain  
The devices are available with the reset output types  
listed in Table 1.  
Table 1. Standard Products  
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
Watchdog Timeout Period: 1.5s  
Model  
Reset Output Type  
Active-Low Push/Pull  
Active-High Push/Pull  
Active-Low Open-Drain  
Immune to Fast Negative VCC Transients  
External Components Not Required  
Operating Temperature Range: -40 to +125°C  
6-pin SOT23 Package  
AS1910/AS1913  
AS1911/AS1914  
AS1912/AS1915  
The AS1910 - AS1915 include a manual-reset input for  
systems that never fully power down the microproces-  
sor. Additionally, these devices feature a watchdog timer  
to help ensure that the processor is operating within  
proper code boundaries.  
3 Applications  
The AS1910 - AS1915 are available in a 6-pin SOT23  
package.  
The devices are ideal for portable and battery-powered  
systems, embedded controllers, intelligent instruments,  
automotive systems, critical CPU monitoring, and any  
multi-supply application.  
Figure 1. Typical Application Diagram  
I/O Supply  
6
VCC  
VCC  
Core  
Supply  
5
AS1913/  
AS1915  
1
CPU  
VCC2  
RESETN  
RESETN  
VCC2  
3
4
GND  
External  
Reset  
I/O  
MRN  
WDI  
GND  
2
www.austriamicrosystems.com  
Revision 1.00  
1 - 15  
1234567...15

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