X4643 XICOR [Xicor Inc.], X4643 Datasheet - Page 18

• Manufacturer Part Number: X4643
• Description: CPU Supervisor with 64K EEPROM
• Manufacturer: XICOR [Xicor Inc.]

X4643/5 – Preliminary Information
RESET Output Timing
V
V
REV 1.26 4/30/02
V
TRIP
TRIP
Parameter
TRIP
Symbol
(V
V
V
SDA
SCL
WP
t
t
t
t
t
t
TRIP
V
V
t
TRAN
t
VPO
VPS
VPH
TSU
THD
t
WDO
V
CC
WC
V
V
RST
RP
Programming Timing Diagram (WEL = 1)
Programming Parameters
ta1
ta2
tv
P
tr
V
programming parameters are periodically sampled and are not 100% tested.
)
P
V
V
V
V
V
V
V
Programming Voltage
V
Initial V
Subsequent V
Programmed at 25°C.)
V
at 25°C.)
V
Watchdog Time Out Period,
Reset Time Out
TRIP
TRIP
TRIP
TRIP
TRIP
TRIP
TRIP
TRIP
TRIP
TRIP
t
VPS
WD1 = 1, WD0 = 1 (factory setting)
WD1 = 1, WD0 = 0
WD1 = 0, WD0 = 1
WD1 = 0, WD0 = 0
A0h
Program Voltage repeatability (Successive program operations. Programmed
Program Enable Voltage Setup time
Program Enable Voltage Hold time
Setup time
Hold (stable) time
Write Cycle Time
Program Enable Voltage Off time (Between successive adjustments)
Program Recovery Period (Between successive adjustments)
Programmed Voltage Range
Program variation after programming (0–75°C). (Programmed at 25°C.)
TRIP
Program Voltage accuracy (V
TRIP
Parameter
Program Voltage accuracy [(V
00h
V
TRIP
Description
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CC
01h or 03h
applied–V
CC
TRIP
applied–V
Min.
100
450
100
1
t
TSU
00h
) (Programmed at 25°C.)
ta1
Characteristics subject to change without notice.
t
VPH
)—V
Typ.
OFF
250
650
250
1.5
TRIP
.
t
THD
Max.
t
300
850
400
RP
2
Min.
2.55
-0.1
-25
-25
-25
10
10
15
t
1
1
1
0
VPO
Max. Unit
4.75
+0.4
+25
+25
+25
10
18
Unit
sec
ms
ms
ms
18 of 22
mV
mV
mV
ms
ms
ms
µs
µs
µs
µs
V
V
V