X40430/X40431 – Preliminary Information
RESET/RESET/MR Timings
V
TRIP1
V
CC
t
t
PURST
PURST
t
RPD1
t
F
t
R
RESET
V
RVALID
RESET
MR
t
MD
t
IN1
LOW VOLTAGE AND WATCHDOG TIMINGS PARAMETERS
Symbol
Parameters
Min.
Typ.
Max.
Unit
t
t
V
V
to RESET/RESET (Power down only)
to LOWLINE
10
20
µs
RPD1
RPDL
TRIP1
TRIP1
t
LOWLINE to RESET/RESET delay (Power down only) [= t
-t ]
500
10
ns
µs
LR
RPD1 RPDL
t
V
to V2FAIL, or V to V3FAIL
TRIP3
20
RPDX
TRIP2
t
Power On Reset delay:
PUP1=0, PUP0=0
PUP1=0, PUP0=1
PUP1=1, PUP0=0
PUP1=1, PUP0=1
PURST
50
ms
ms
ms
ms
200
400
800
t
V
V
V2MON V3MON Fall Time
20
20
1
mV/µs
mV/µs
V
F
CC,
,
,
t
V2MON V3MON Rise Time
, ,
R
CC,
V
Reset Valid V
CC
RVALID
t
MR to RESET/ RESET delay (activation only)
Pulse width for MR
500
5
ns
MD
t
µs
in1
t
Watchdog Timer Period:
WD1=0, WD0=0
WDO
1.4
200
25
s
ms
ms
WD1=0, WD0=1
WD1=1, WD0=0
t
t
Watchdog Reset Time Out Delay
WD1=0, WD0=0
WD1=0, WD0=1
100
200
300
ms
RST1
Watchdog Reset Time Out Delay WD1=1, WD0=0
Watchdog timer restart pulse width
12.5
1
25
37.5
ms
µs
RST2
t
RSP
Characteristics subject to change without notice. 19 of 24
REV 1.2.3 11/28/00
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XICOR [ XICOR INC. ]
