X40430 INTERSIL [Intersil Corporation], X40430 Datasheet - Page 20

• Manufacturer Part Number: X40430
• Description: Triple Voltage Monitor with Integrated CPU Supervisor
• Manufacturer: INTERSIL [Intersil Corporation]

LOW VOLTAGE AND WATCHDOG TIMINGS PARAMETERS (@25°C, V
Notes: (1) V
Watchdog Time Out For 2-Wire Interface
Symbol
t
t
t
t
RST1
RST2
WDO
t
RSP
in1
(2) Values based on characterization data only.
CC
Pulse width for MR
Watchdog Timer Period:
WD1 = 0, WD0 = 0
WD1 = 0, WD0 = 1
WD1 = 1, WD0 = 0
WD1 = 1, WD0 = 1 (factory setting)
Watchdog Reset Time Out Delay
WD1 = 0, WD0 = 0
WD1 = 0, WD0 = 1
Watchdog Reset Time Out Delay WD1 = 1, WD0 = 0
Watchdog timer restart pulse width
= 5V at 25°C.
WDO
SCL
SDA
SCL
SDA
Minimum Sequence to Reset WDT
20
Start
X40430, X40431, X40434, X40435
Parameters
Clockin (0 or 1)
Start
t
RSP
< t
WDO
Start
WDT
Restart
CC
= 5V)
12.5
Min
100
(CONTINUED)
5
1
Typ
200
1.4
OFF
t
200
RST
25
25
(2)
(2)
(1)
t
WDO
Max
37.5
300
t
RST
July 29, 2005
Unit
FN8251.0
ms
ms
ms
ms
µs
µs
s