X5643 INTERSIL [Intersil Corporation], X5643 Datasheet - Page 13

• Manufacturer Part Number: X5643
• Description: CPU Supervisor with 64Kbit SPI EEPROM
• Manufacturer: INTERSIL [Intersil Corporation]

Power-Up and Power-Down Timing
RESET Output Timing
Note:
CS/WDI vs. RESET/RESET Timing
Symbol
V
t
t
V
PURST
RPD
RVALID
t
V
t
R
F
TRIP
TH
(5)
(5)
(5) This parameter is periodically sampled and not 100% tested.
(5)
Reset trip point voltage, X5643-4.5A, X5643-4.5A
Reset trip point voltage, X5643, X5645
Reset trip point voltage, X5643-2.7A, X5645-2.7A
Reset trip point voltage, X5643-2.7, X5645-2.7
V
Power-up reset time out
V
V
V
Reset valid V
TRIP
CC
CC
CC
detect to reset/output
fall time
rise time
hysteresis (HIGH to LOW vs. LOW to HIGH V
CS/WDI
RESET
RESET
CC
13
V
CC
RESET (X5643)
RESET (X5645)
0 Volts
V
Parameter
TRIP
t
R
t
WDO
t
CST
X5643, X5645
t
PURST
t
RST
t
PURST
TRIP
voltage)
t
WDO
V
Min.
4.25
2.85
2.55
TRIP
100
100
100
t
4.5
RST
t
1
RPD
t
F
Typ.
4.63
4.38
2.93
2.63
200
20
Max.
4.75
280
500
4.5
3.0
2.7
July 18, 2005
Unit
FN8135.1
mV
ms
ns
µs
µs
V
V