X40030_13 Datasheet, PDF (20/23 Pages) Intersil Corporation – Triple Voltage Monitor with Integrated CPU Supervisor

X40030, X40031, X40034, X40035
Low Voltage and Watchdog Timings Parameters (@ +25°C, V_CC = 5V) (Continued)
SYMBOL
PARAMETERS
MIN
TYP
MAX
(Note 3) (Note 12) (Note 3)
t_F
t_R
V_RVALID
t_MD
t_in1
t_WDO
V_CC,V2MON, V3MON, Fall Time
V_CC, V2MON, V3MON, Rise Time
Reset Valid V_CC
MR to RESET/RESET Delay (activation only)
Pulse Width for MR
Watchdog Timer Period
WD1 = 0, WD0 = 0
20
20
1
500
5
1.4
WD1 = 0, WD0 = 1
200
WD1 = 1, WD0 = 0
25
WD1 = 1, WD0 = 1 (Factory Setting)
OFF
t_RST1
Watchdog Reset Time Out Delay
WD1 = 0, WD0 = 0
100
200
300
WD1 = 0, WD0 = 1
t_RST2
Watchdog Reset Time Out Delay WD1 = 1, WD0 = 0
t_RSP
Watchdog Timer Restart Pulse Width
NOTES:
12. V_CC = 5V at +25°C.
13. Values based on characterization data only.
12.5
25
37.5
1
UNIT
mV/µs
mV/µs
V
ns
µs
s
ms
ms
ms
ms
µs
Watchdog Time Out for 2-Wire Interface
SCL
START
CLOCKIN (0 OR 1)
t_RSP
START
< t_WDO
SDA
WDO
START
MINIMUM SEQUENCE TO RESET WDT
SCL
SDA
WDT
RESTART
t_RST t_WDO
t_RST
20
FN8114.2
August 25, 2008