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| 型号： | SP690AEN-L/TR |
| 厂商： | Exar Corporation |
| 文件页数： | 13/16页 |
| 文件大小： | 0K |
| 描述： | IC SUPERVISOR MPU LP 8NSOIC |
| 产品变化通告： | SP690A,S,T |
| 标准包装： | 2,500 |
| 类型： | 简单复位/加电复位 |
| 监视电压数目： | 1 |
| 复位： | 低有效 |
| 复位超时： | 最小为 140 ms |
| 电压 - 阀值： | 4.65V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 带卷 (TR) |
+5V
V CC
R 1
Buffered RESET connects to System Components
5.0 - 1.25 = 1.25 - V TRIP
GND
PFI
PFO
R 1 R 2
R 2
V-
+5V
V CC
GND
RESET
4.7K ?
RESET
+5V
V CC
μ P
GND
PFO
+5V
Figure 20. Interfacing to Microprocessors with
Bidirectional RESET I/O
*V TRIP
0V
0V
V-
*V TRIP is a negative voltage
Figure 19. Monitoring a Negative Voltage
Interfacing to Microprocessors with
Bidirectional Reset Pins
Microprocessors with bidirectional reset pins,
such as the Motorola 68HC11 series, can con-
tend with this series' RESET output. If, for
example, the RESET output is driven high and
the μ P wants to pull it low, indeterminate logic
levels may result. To correct this, connect a
4.7K ? resistor between the RESET output and
the μ P reset I/O, as in Figure 20 . Buffer the
RESET output to other system components.
Date: 11/29/04
SP690A/692A Low Power Microprocessor Supervisory with Battery Switch-Over
13
? Copyright 2004 Sipex Corporation
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SP690AEP | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:Low Power Microprocessor Supervisory with Battery Switch-Over |
| SP690AEP-L | 功能描述:监控电路 LW PWR MICRO 4.65V TEMP -40C to 85C RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| SP690R | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:3.0V/3.3V Low Power Microprocessor Supervisory with Battery Switch-Over |
| SP690RCN | 制造商:SIPEX 制造商全称:Sipex Corporation 功能描述:3.0V/3.3V Low Power Microprocessor Supervisory with Battery Switch-Over |
| SP690RCN-L | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
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