X4043 INTERSIL [Intersil Corporation], X4043 Datasheet - Page 19

• Manufacturer Part Number: X4043
• Description: CPU Supervisor with 4kbit EEPROM
• Manufacturer: INTERSIL [Intersil Corporation]

Power-Up and Power-Down Timing
RESET Output Timing
Notes: (8) This parameter is periodically sampled and not 100% tested.
Symbol
V
t
t
V
PURST
RPD
RVALID
t
t
t
t
t
WDO
RSP
R
RST
TRIP
F
(8)
(8)
(8)
(X4043)
(X4045)
RESET
RESET
V
CC
0 Volts
Reset trip point voltage, X4043/45-4.5A
Reset trip point voltage, X4043/45
Reset trip point voltage, X4043/45-2.7A
Reset trip point voltage, X4043/45-2.7
Power-up reset time out
V
V
V
Reset valid V
Watchdog time out period,
Watchdog Time Restart pulse width
Reset time out
CC
CC
CC
WD1 = 1, WD0 = 0
WD1 = 0, WD0 = 1
WD1 = 0, WD0 = 0
detect to RESET/RESET
fall time
rise time
V
TRIP
19
CC
t
R
t
PURST
Parameter
X4043, X4045
t
RPD
t
PURST
Min.
4.25
2.85
2.55
100
100
450
100
4.5
20
20
1
1
1
Typ.
4.62
4.38
2.92
2.62
200
200
600
200
1.4
10
V
RVALID
V
t
F
RVALID
Max.
4.75
400
300
800
400
4.5
3.0
2.7
20
2
September 30, 2005
mV/µs
mV/µs
Unit
sec
ms
ms
ms
ms
µs
µs
V
V
FN8118.1