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| X4283 Datasheet, PDF (18/22 Pages) Xicor Inc. – CPU Supervisor with 128K EEPROM | |||
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X4283/85 â Preliminary Information
RESET Output Timing
Symbol
tWDO
tRST
Parameter
Watchdog Time Out Period,
WD1 = 1, WD0 = 0
WD1 = 0, WD0 = 1
WD1 = 0, WD0 = 0 (factory setting)
Reset Time Out
VTRIP Programming Timing Diagram (WEL = 1)
Min.
100
450
1
100
Typ.
250
650
1.5
250
VCC
(VTRIP)
VP
WP
SCL
tVPS
VTRIP
tTSU
tVPH
SDA
A0h
00h
01h or 03h
00h
Max.
400
850
2
400
Unit
ms
ms
sec
ms
tTHD
tVPO
tRP
VTRIP Programming Parameters
Parameter
Description
tVPS
tVPH
tTSU
tTHD
tWC
tVPO
tRP
VP
VTRAN
Vta1
Vta2
VTRIP Program Enable Voltage Setup time
VTRIP Program Enable Voltage Hold time
VTRIP Setup time
VTRIP Hold (stable) time
VTRIP Write Cycle Time
VTRIP Program Enable Voltage Off time (Between successive adjustments)
VTRIP Program Recovery Period (Between successive adjustments)
Programming Voltage
VTRIP Programmed Voltage Range
Initial VTRIP Program Voltage accuracy (VCC appliedâVTRIP) (Programmed at 25°C.)
Subsequent VTRIP Program Voltage accuracy [(VCC appliedâVta1)âVTRIP.
Programmed at 25°C.)
Vtr
VTRIP Program Voltage repeatability (Successive program operations. Programmed
at 25°C.)
Vtv
VTRIP Program variation after programming (0â75°C). (Programmed at 25°C.)
VTRIP programming parameters are periodically sampled and are not 100% tested.
Min. Max. Unit
1
µs
1
µs
1
µs
10
ms
10 ms
0
µs
10
ms
15 18 V
2.55 4.75 V
-0.1 +0.4 V
-25 +25 mV
-25 +25 mV
-25 +25 mV
REV 1.17 11/27/00
www.xicor.com
Characteristics subject to change without notice. 18 of 22
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