Datasheet

Watchdog timing STWD100
14/25 Doc ID 14134 Rev 7
Figure 10. Enable pin, EN, triggering
X
DISABLED
X
DISABLED
STWD100xx
STWD100xx
AI12666
Whenever EN is high, all timing is
reset, and the part is disabled.
Timing commences from 0 when
EN goes low.
If EN goes high while WDO is
asserted, WDO will de-assert but
only after the nominal minimum
pulse width of 10 µs has elapsed.
V
CC
V
CC
WDI
WDI
WDO
WDO
EN
EN
~ 2.2 V
X (ie, 1 or 0 but not floating)
>10 µs min.
X (ie, 1 or 0 but not floating)
< t
WD
t
WD
t
WD
t
WD