Datasheet

Watchdog timing STWD100
12/25 Doc ID 14134 Rev 7
Figure 8. Timeout without re-trigger
X
X
STWD100xP
STWD100xW,
STWD100xX,
STWD100xY
AI12664
After a timeout and WDO is
asserted, it will stay low for
t
PW
time period, then
return high. If no WDI trigger
event occurs within t
WD
time period, WDO will again
assert low. This cycle repeats
until a WDI trigger event
occurs while WDO is high.
After a timeout and WDO is
asserted, it will stay low for
t
WD
time period, then
return high. If no WDI trigger
event occurs, WDO will again
assert low after t
WD
time
period. This cycle repeats
until a WDI trigger event
occurs.
V
CC
V
CC
WDI
WDI
WDO
WDO
EN
EN
t
WD
t
WD
t
WD
t
WD
t
WD
t
WD
t
WD
t
WD
t
WD
t
WD
t
PW
t
PW
t
PW