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SP704CN PDF预览

SP704CN

更新时间: 2024-11-05 22:21:31
品牌 Logo 应用领域
西伯斯 - SIPEX 电池微处理器光电二极管监控
页数 文件大小 规格书
16页 219K
描述
Low Power Microprocessor Supervisory with Battery Switch-Over

SP704CN 数据手册

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®
SP703/SP704  
Low Power Microprocessor Supervisory  
with Battery Switch-Over  
Precision Voltage Monitor:  
SP703 at 4.65V  
SP704 at 4.40V  
Reset Time Delay - 200ms  
Debounced TTL/CMOS -  
Compatible Manual - Reset Input  
Minimum component count  
60µA Maximum Operating Supply Current  
0.6µA Maximum Battery Backup Current  
0.1µA Maximum Battery Standby Current  
Power Switching  
250mA Output in VCC Mode (0.6)  
25mA Output in Battery Mode (5)  
Voltage Monitor for Power Fail or  
Low Battery Warning  
Available in 8 pin SO and DIP packages  
RESET asserted down to VCC = 1V  
Pin Compatible Upgrades to  
MAX703/MAX704  
DESCRIPTION  
The SP703/704 devices are microprocessor (µP) supervisory circuits that integrate a myriad  
of components involved in discrete solutions to monitor power-supply and battery-control  
functions in µP and digital systems. The series will significantly improve system reliability and  
operational efficiency when compared to discrete solutions. The features of the SP703/704  
devices include a manual reset input, a µP reset and backup-battery switchover, and power-  
failure warning. The series is ideal for applications in computers, controllers, intelligent  
instruments and automotive systems. All designs where it is critical to monitor the power  
supply to the µP and its related digital components will find the series to be an ideal solution.  
BATTERY SWITCHOVER  
CIRCUITRY  
V
BATT  
V
OUT  
1
2
3
4
8
7
6
5
VCC  
V
OUT  
V
BATT  
RESET  
GENERATOR  
RESET  
RESET  
MR  
V
CC  
1.25V  
GND  
PFI  
MR  
PFI  
PFO  
PFO  
1.25V  
PINOUT  
INTERNAL BLOCK DIAGRAM  
SP703/704DS/07  
SP703/704 Low Power Microprocessor Supervisory  
© Copyright 2000 Sipex Corporation  
1

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