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| X4283 Datasheet, PDF (18/21 Pages) Xicor Inc. – CPU Supervisor with 128K EEPROM | |||
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X4283, X4285
RESET Output Timing
Symbol
Parameter
tWDO
tRST
Watchdog Time Out Period,
WD1 = 1, WD0 = 1 (factory setting)
WD1 = 1, WD0 = 0
WD1 = 0, WD0 = 1
WD1 = 0, WD0 = 0
Reset Time Out
VTRIP Programming Timing Diagram (WEL = 1)
VCC
(VTRIP)
VTRIP
VP
WP
tVPS
SCL
Min.
100
450
1
100
Typ.
OFF
250
650
1.5
250
tTSU
tVPH
SDA
A0h
00h
01h or 03h
00h
Max.
400
850
2
400
tTHD
tVPO
tRP
Unit
ms
ms
sec
ms
VTRIP Programming Parameters
Parameter
Description
tVPS
VTRIP Program Enable Voltage Setup time
tVPH
VTRIP Program Enable Voltage Hold time
tTSU
VTRIP Setup time
tTHD
VTRIP Hold (stable) time
tWC
VTRIP Write Cycle Time
tVPO
VTRIP Program Enable Voltage Off time (Between successive adjustments)
tRP
VTRIP Program Recovery Period (Between successive adjustments)
VP
Programming Voltage
VTRAN
VTRIP Programmed Voltage Range
Vtv
VTRIP Program variation after programming (0-75°C). (Programmed at 25°C.)
VTRIP programming parameters are periodically sampled and are not 100% tested.
Min.
1
1
1
10
0
10
15
2.55
-25
Max.
10
18
4.75
+25
Unit
µs
µs
µs
ms
ms
µs
ms
V
V
mV
18
FN8121.0
March 29, 2005
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