參數(shù)資料
型號: SIP825MEUDT-TR1
廠商: Vishay Intertechnology,Inc.
英文描述: 5-Pin UP Reset Circuits with Watchdog Timer and Manual Reset
中文描述: 5引腳復位和看門狗定時器和手動復位電路
文件頁數(shù): 4/6頁
文件大小: 55K
代理商: SIP825MEUDT-TR1
SiP823/SiP824/SiP825
Vishay Siliconix
www.vishay.com
4
Document Number: 72397
S-41150—Rev. B, 14-Jun-04
PIN DESCRIPTION
SiP823
SiP824
SiP825
Name
Description
1
1
1
RESET
RESET is active low. This pin has a push/pull output.
2
2
3
2
3
GND
RESET
Ground
RESET is active high. This pin has a push/pull output.
N/A
3
N/A
4
MR
Manual RESET. Active low. Pulling this pin low forces a RESET. After a low to high transition RESET
remains asserted for exactly one RESET timed period. This pin is internally pulled high. If this function is
unused it can be left open or tied to V
CC.
Watchdog Input. Any transition on this pin will RESET the watchdog timer. If this pin remains high or low
for longer than the watchdog interval, a RESET is asserted. Float or tristate this pin to disable the
watchdog feature.
Positive power supply. A RESET is asserted after this voltage drops below a predetermined level. After
V
CC
rises above that level, RESET remains asserted until the end of the RESET time-out period.
4
4
N/A
W
DI
5
5
5
V
CC
TIMING DIAGRAMS
50%
50%
50%
50%
V
CC
RESET
RESET
Figure 1.
RESET Timing Diagram
Figure 2.
Watchdog Timing Diagram
t
D2
t
WD
t
D2
WDI
RESET
B
V
DD
t
D2
t
D2
t
D1
t
D1
V
TH
V
TH
V
TH
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