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參數(shù)資料
| 型號： | S93WD462 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Precision Supply-Voltage Monitor and Reset Controller With a Watchdog Timer and 1k-bit Microwire Memory |
| 中文描述： | 精密電源電壓監(jiān)控和復位控制器，看門狗定時器和1K位微型導線記憶 |
| 文件頁數(shù)： | 11/14頁 |
| 文件大?。?/td> | 81K |
| 代理商： | S93WD462 |
11
S93WD462/S93WD463
2029 2.2 1/23/01
SUMMIT MICROELECTRONICS, Inc.
Frequently the reset controller will be deployed on a PC board that provides a peripheral function to a system.
Examples might be modem or network cards in a PC or a PCMCIA card in a laptop. In instances like this the peripheral
card may have a requirement for a clean reset function to insure proper operation. The system may or may not provide
a reset pulse of sufficient duration to clear the peripheral or to protect data stored in a nonvolatile memory.
The I/O capability of the RESET pins can provide a solution. The system
’
s reset signal to the peripheral can be fed
into the S93WD462/WD463 and it in turn can clean up the signal and provide a known entity to the peripheral
’
s circuits.
The figure below shows the basic timing characteristics under the assumption the reset input is shorter in duration
than t
PURST
. The same reset output affect can be attained by using the active high reset input.
When planning your resistor pull-up and pull-down values, use the following chart to help determine min. resistances.
Condition
V
CC
= 1.0V, I
OL
=100μA
V
CC
= 1.2V, I
OL
=100μA
V
CC
= 3.0V, I
OL
=500μA
V
CC
= 3.6V, I
OL
=500μA
V
CC
= 4.5V, I
OL
=750μA
V
CC
= 1.0V, I
OL
=100μA
V
CC
= 1.2V, I
OL
=150μA
V
CC
= 3.0V, I
OL
=750μA
V
CC
= 3.6V, I
OL
=1mA
V
CC
= 4.5V, I
OL
=1mA
V
CC
= 1.0V, I
OH
=400μA
V
CC
= 1.2V, I
OH
=800μA
V
CC
= 3.0V, I
OH
=800μA
V
CC
= 3.6V, I
OH
=800μA
V
CC
= 4.5V, I
OH
=800μA
Min
Typ
Max
0.3
0.3
0.3
0.3
0.3
0.4
0.4
0.4
0.4
0.4
Units
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
CC
-0.75
V
CC
-0.75
V
CC
-0.5
V
CC
-0.5
V
CC
-0.5
Worst Case RESET Sink/Source Capabilities at Various V
CC
Levels
Parameter
Symbol
RESET#
Output
Voltage
V
OL
RESET#
Output
V
OL
Voltage
RESET Output
Voltage
V
OH
2029 PGM T5.0
RESET#
Input
RESET#
Output
RESET
Output
2029 T fig09 2.0
t
PURST
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S93WD462_98 | 制造商:SUMMIT 制造商全稱:SUMMIT 功能描述:Precision Supply-Voltage Monitor and Reset Controller With a Watchdog Timer and 1k-bit Microwire Memory |
| S93WD462P-2.7 | 制造商:SUMMIT 制造商全稱:SUMMIT 功能描述:Precision Supply-Voltage Monitor and Reset Controller With a Watchdog Timer and 1k-bit Microwire Memory |
| S93WD462P-2.7T | 制造商:SUMMIT 制造商全稱:SUMMIT 功能描述:Precision Supply-Voltage Monitor and Reset Controller With a Watchdog Timer and 1k-bit Microwire Memory |
| S93WD462PA | 制造商:SUMMIT 制造商全稱:SUMMIT 功能描述:Precision Supply-Voltage Monitor and Reset Controller With a Watchdog Timer and 1k-bit Microwire Memory |
| S93WD462PAT | 制造商:SUMMIT 制造商全稱:SUMMIT 功能描述:Precision Supply-Voltage Monitor and Reset Controller With a Watchdog Timer and 1k-bit Microwire Memory |
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