X5645 XICOR [Xicor Inc.], X5645 Datasheet - Page 13

• Manufacturer Part Number: X5645
• Description: CPU Supervisor with 64Kbit SPI EEPROM
• Manufacturer: XICOR [Xicor Inc.]

X5643/X5645
Power-Up and Power-Down Timing
RESET Output Timing
Note: (5) This parameter is periodically sampled and not 100% tested.
CS/WDI vs. RESET/RESET Timing
REV 1.1.1 3/5/01
Symbol
V
t
t
V
PURST
RPD
RVALID
V
t
t
TRIP
R
F
TH
(5)
(5)
(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
V
CC
RESET (X5643)
RESET (X5645)
0 Volts
Parameter
V
TRIP
t
R
t
WDO
t
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CST
t
PURST
t
RST
t
PURST
TRIP
voltage)
t
WDO
Characteristics subject to change without notice.
Min.
4.25
2.85
2.55
100
100
100
4.5
V
1
TRIP
t
RST
t
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
13 of 19
Unit
mV
ms
ns
µs
µs
V
V