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| X5645 Datasheet, PDF (14/19 Pages) Xicor Inc. – CPU Supervisor with 64Kbit SPI EEPROM | |||
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X5643/X5645
RESET/RESET Output Timing
Symbol
tWDO
tCST
tRST
Parameter
Watchdog time out period,
WD1 = 1, WD0 = 0
WD1 = 0, WD0 = 1
WD1 = 0, WD0 = 0
CS pulse width to reset the watchdog
Reset time out
VTRIP Set Conditions
Min.
100
450
1
400
100
Typ.
200
600
1.4
200
VCC
VTRIP
tTHD
tTSU
tRP
tVPS
tP
tVPH
CS
SCK
SI
tVPS
tVPH
tVPO
VP
VP
tVPO
Max.
300
800
2
300
Unit
ms
ms
sec
ns
ms
VTRIP Reset Conditions
VCC*
CS
SCK
SI
VCC
VP
tRP
tVPS
tP
tVP1
tVPS
tVPH
tVPO
tVPO
*VCC > Programmed VTRIP
REV 1.1.1 3/5/01
www.xicor.com
Characteristics subject to change without notice. 14 of 19
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