X4043-45 Datasheet, PDF (20/24 Pages) Intersil Corporation – 2.7V to 5.5V power supply operation

X4043, X4045
Watchdog Time Out For 2-Wire Interface
Start
Clockin (0 or 1)
t_RSP
Start
< t_WDO
SCL
SDA
(4043) RESET
Start
Minimum Sequence to Reset WDT
SCL
SDA
WDT
Restart
t_RST t_WDO t_RST
V_TRIP Set/Reset Conditions
(V_TRIP)
t_TSU
WP
t_VPS
V_CC
V_P
SCL
0
70
70
t_THD
t_VPH
t_VPO
7
SDA
A0h
00h
t_WC
Start
01h* sets V_TRIP
03h* ^{resets V}TRIP
* all others reserved
20
FN8118.3
December 9, 2015