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X5643P Datasheet(PDF) 13 Page - Xicor Inc.

No. de pieza X5643P
Descripción Electrónicos  CPU Supervisor with 64Kbit SPI EEPROM
PDF  19 Pages
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Fabricante Electrónico  XICOR [Xicor Inc.]
Página de inicio  http://www.xicor.com
Logo XICOR - Xicor Inc.

X5643P Datasheet(HTML) 13 Page - Xicor Inc.

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X5643/X5645
Characteristics subject to change without notice.
13 of 19
REV 1.1.1 3/5/01
www.xicor.com
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
Symbol
Parameter
Min.
Typ.
Max.
Unit
VTRIP
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
4.5
4.25
2.85
2.55
4.63
4.38
2.93
2.63
4.75
4.5
3.0
2.7
V
VTH
VTRIP hysteresis (HIGH to LOW vs. LOW to HIGH VTRIP voltage)
20
mV
tPURST
Power-up reset time out
100
200
280
ms
tRPD
(5)
VCC detect to reset/output
500
ns
tF
(5)
VCC fall time
100
µs
tR
(5)
VCC rise time
100
µs
VRVALID
Reset valid VCC
1V
RESET (X5643)
RESET (X5645)
VCC
tPURST
tPURST
tR
tF
tRPD
0 Volts
VTRIP
VTRIP
CS/WDI
tCST
RESET
tWDO
tRST
RESET
tWDO
tRST



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