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SP691AEN

更新时间： 2024-11-05 22:38:39
品牌 Logo 应用领域
西伯斯 - SIPEX 电池微处理器监控
页数 文件大小 规格书
24页 195K
描述
Low Power Microprocessor Supervisory with Battery Switch-Over

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SP691AEN 数据手册

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SP691A/693A/800L/800M  
SIGNAL PROCESSING EXCELLENCE  
Low Power Microprocessor Supervisory  
with Battery Switch-Over  
FEATURES  
TOP VIEW  
■ Precision 4.65V/4.40V Voltage Monitoring  
■ 200ms Or Adjustable Reset Time  
■ 100ms, 1.6s Or Adjustable Watchdog Time  
■ 60µA Maximum Operating Supply Current  
■ 2.0µA Maximum Battery Backup Current  
■ 0.1µA Maximum Battery Standby Current  
1
2
3
4
5
6
7
8
16  
15  
V
BATT  
RESET  
RESET  
V
OUT  
Vcc  
14 WDO  
GND  
BATT ON  
LOWLINE  
13  
12  
CEIN  
CEOUT  
WDI  
Corporation  
11  
10  
■ Power Switching  
OSCIN  
PFO  
PFI  
250mA Output in Vcc Mode (0.6Ω)  
25mA Output in Battery Mode (5Ω)  
9
OSCSEL  
■ On-Board Gating of Chip-Enable Signals  
Memory Write-Cycle Completion  
6ns CE Gate Propagation Delay  
DIP/SO  
Now Available in Lead Free Packaging  
■ Voltage Monitor for Power-Fail or Low Battery  
■ Backup-Battery Monitor  
■ RESET Valid to Vcc=1V  
■ 1% Accuracy Guaranteed (SP800L/800M)  
■ Pin Compatible Upgrade to MAX691A/693A/  
800L/800M  
DESCRIPTION  
The SP691A/693A/800L/800M is a microprocessor (µP) supervisory circuit that integrates  
a myriad of components involved in discrete solutions to monitor power-supply and  
battery-control functions in µP and digital systems. The SP691A/693A/800L/800M offers  
complete µP monitoring and watchdog functions. The SP691A/693A/800L/800M is ideal for  
a low-cost battery management solution and is well suited for portable, battery-powered  
applications with its supply current of 35µA. The 6ns chip-enable propagation delay,  
the 25mA current output in battery-backup mode, and the 250mA current output in  
standard operation also makes the SP691A/693A/800L/800M suitable for larger scale,  
high-performance equipment.  
Part Number  
SP691A  
RESET Threshold RESET Accuracy  
PFI Accuracy  
+4%  
Backup-Battery Switch  
4.65V  
4.40V  
4.65V  
4.40V  
+125mV  
+125mV  
+50mV  
+50mV  
YES  
YES  
YES  
YES  
SP693A  
+4%  
SP800L  
+1%  
SP800M  
+1%  
Date: 5/25/04  
SP691A/693A/800L/800M Low Power Microprocessor Supervisor with Battery Switch-Over © Copyright 2004 Sipex Corporation  
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