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AS1918S-T PDF预览

AS1918S-T

更新时间: 2024-02-17 21:19:31
品牌 Logo 应用领域
艾迈斯 - AMSCO 微处理器监控
页数 文件大小 规格书
13页 403K
描述
Microprocessor Supervisory Circuits with Manual Reset and Watchdog

AS1918S-T 技术参数

是否Rohs认证: 符合生命周期:Contact Manufacturer
零件包装代码:SOT-23包装说明:LSSOP,
针数:5Reach Compliance Code:unknown
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.16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 CIRCUIT
JESD-30 代码:R-PDSO-G5长度:2.925 mm
信道数量:1功能数量:1
端子数量:5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峰值回流温度(摄氏度):NOT SPECIFIED
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处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:1.625 mmBase Number Matches:1

AS1918S-T 数据手册

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AS1916 - AS1918  
austriamicrosystems  
Data Sheet  
RESET/RESETN  
8 Detailed Description  
The AS1916 - AS1918 supervisory circuits were designed to generate a reset when the monitored supply voltage falls  
below its factory-trimmed trip threshold (see VTH on page 3), and to maintain the reset for a minimum timeout period  
(see tRP on page 3) after the supply has stabilized.  
The integrated watchdog timer (see Watchdog Input on page 8) helps mitigate against bad programming code or clock  
signals, and/or poor peripheral response.  
The active-low manual reset input (see Manual Reset Input on page 8) allows for an externally activated system reset.  
RESET/RESETN  
Whenever the monitored supply voltage falls below its reset threshold, the RESET output asserts low or the RESETN  
output asserts high. Once the monitored voltage has stabilized, an internal timer keeps the reset asserted for the reset  
timeout period (tRP). After the tRP period, the RESET/RESETN output returns to its original state (see Figure 10).  
Figure 9. Functional Diagram of VCC Supervisory Application  
5
AS1916 - AS1918  
VCC  
1
Reset Timeout  
Delay Generator  
RESETN/  
RESET  
+
1.26V  
VCC  
3
MRN  
4
Watchdog Transition  
Detector  
Watchdog  
Timer  
WDI  
2
GND  
Figure 10. Reset Timing Diagram  
VCC  
1V  
VTH  
VTH  
1V  
tRP  
RESETN  
tRD  
tRD  
RESET  
GND  
tRP  
www.austriamicrosystems.com  
Revision 0.52  
7 - 13  

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