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| 型號(hào)： | SP805MEN |
| 英文描述： | Low Power Microprocessor Supervisory with Battery Switch-Over |
| 中文描述： | 低功耗微處理器監(jiān)控與電池開關(guān)過 |
| 文件頁數(shù)： | 13/16頁 |
| 文件大?。?/td> | 631K |
| 代理商： | SP805MEN |
SP690A/692ADS/08 SP690A/692A Low Power Microprocessor Supervisory with Battery Switch-Over
Copyright 2000 Sipex Corporation
13
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.
Figure 19. Monitoring a Negative Voltage
Figure 20. Interfacing to Microprocessors with
Bidirectional RESET I/O
PFI
PFO
R
2
R
1
V
CC
+5V
GND
PFO
V-
+5V
*V
TRIP
0V
0V
5.0 - 1.25
R
1
1.25 - V
TRIP
R
2
V-
=
*V
TRIP
is a negative voltage
V
CC
+5V
GND
V
CC
+5V
GND
RESET
RESET
4.7K
μ
P
Buffered RESET connects to System Components
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SP690R | 3.0V/3.3V Low Power Microprocessor Supervisory with Battery Switch-Over |
| SP690RCN | 3.0V/3.3V Low Power Microprocessor Supervisory with Battery Switch-Over |
| SP690RCP | 3.0V/3.3V Low Power Microprocessor Supervisory with Battery Switch-Over |
| SP690REN | 3.0V/3.3V Low Power Microprocessor Supervisory with Battery Switch-Over |
| SP690REP | Trim Pot Accessory; Body Material:Polyester; Mounting Hole Dia:0.330" |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SP805MEN/TR | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Low Power Microprocessor Supervisory with Battery Switch-Over |
| SP805MEP | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Low Power Microprocessor Supervisory with Battery Switch-Over |
| SP805R | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:3.0V/3.3V Low Power Microprocessor Supervisory with Battery Switch-Over |
| SP805RCN | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:3.0V/3.3V Low Power Microprocessor Supervisory with Battery Switch-Over |
| SP805RCP | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:3.0V/3.3V Low Power Microprocessor Supervisory with Battery Switch-Over |
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