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參數(shù)資料
| 型號： | SP704EN |
| 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)控與電池開關過 |
| 文件頁數(shù)： | 13/16頁 |
| 文件大?。?/td> | 216K |
| 代理商： | SP704EN |
SP703/704DS/07
SP703/704 Low Power Microprocessor Supervisory
13
Copyright 2000 Sipex Corporation
Interfacing to Microprocessors with
Bidirectional Reset Pins
Microprocessors with bidirectional reset pins,
such as the Motorola 68HC11 series, can
contend 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 16
. Buffer the
RESET output to other system components.
Figure 15. Monitoring a Negative Voltage
Figure 16. 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PDF資料 |
PDF描述 |
|---|---|
| SP704EP | Low Power Microprocessor Supervisory with Battery Switch-Over |
| SP706S | +3.0V/+3.3V Low Power Microprocessor Supervisory Circuits |
| SP706SCN | +3.0V/+3.3V Low Power Microprocessor Supervisory Circuits |
| SP706SCP | +3.0V/+3.3V Low Power Microprocessor Supervisory Circuits |
| SP706SCU | +3.0V/+3.3V Low Power Microprocessor Supervisory Circuits |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SP704EN-L | 制造商:Exar Corporation 功能描述:SUPERVISORY CIRCUIT LOW POWER 704 |
| SP704EP | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Low Power Microprocessor Supervisory with Battery Switch-Over |
| SP704EP-L | 制造商:Exar Corporation 功能描述: |
| SP705 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Low Power Microprocessor Supervisory Circuits |
| SP705_06 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:Low Power Microprocessor Supervisory Circuits |
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