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X4003 Datasheet, PDF (13/17 Pages) Xicor Inc. – CPU Supervisor
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Power-Up and Power-Down Timing
VCC
VTRIP
0 Volts
tR
tPURST
RESET
X4003, X4005
tRPD
tPURST
tF
VRVALID
RESET
VRVALID
RESET/RESET Output Timing
Symbol
VTRIP
tPURST
tRPD(8)
tF(8)
tR(8)
VRVALID
Parameter
Reset trip point voltage, X4003-4.5A, X4005-4.5A
Reset trip point voltage, X4003, X4005
Reset trip point voltage, X4003-2.7A, X4005-2.7A
Reset trip point voltage, X4003-2.7, X4005-2.7
Reset trip point voltage, X4003-1.8, X4005-1.8
Power-up reset time out
VCC detect to reset/output
VCC fall time
VCC rise time
Reset valid VCC
Note: (8) This parameter is periodically sampled and not 100% tested.
SDA vs. RESET/RESET Timing
SCL
SDA
RESET
RESET
tCST
tWDO
tRST
Min.
4.5
4.25
2.85
2.55
1.7
100
10
0.1
1
Typ.
4.62
4.38
2.92
2.62
1.75
200
Max.
4.75
4.5
3.0
2.7
1.8
400
500
tWDO
tRST
Unit
V
V
V
ms
ns
ms
ns
V
13
FN8113.0
March 15, 2005
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