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DS1743-70+
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P16
DS1743/DS1743P Y2K-Compliant, Nonvolatile Time
keeping RAMs
10 of 16
AC CHARACTERISTICS—READ CYCLE (3.3V)
(
V
CC
= 3.3V
10%
, T
A
= Over the Operating Range.)
ACCESS
120ns 150ns
PARAMETER SYMBOL
MIN MAX MIN MAX
UNITS NOTES
Read Cycle Time
t
RC
120
150
ns
Address Access Time
t
AA
120
150
ns
CE
and CE2 Low to DQ Low-Z
t
CEL
5
5
ns
5
CE
and CE2 Access Time
t
CEA
120
150
ns
5
CE
and CE2 Data-Off time
t
CEZ
40
50
ns
5
OE
Low to DQ Low-Z
t
OEL
5
5
ns
OE
Access Time
t
OEA
100
130
ns
OE
Data-Off Time
t
OEZ
35
35
ns
Output Hold from Address
t
OH
5
5
ns
READ CYCLE TIMING DIAGRAM
DS1743/DS1743P Y2K-Compliant, Nonvolatile Time
keeping RAMs
11 of 16
AC CHARACTERISTICS—WRITE CYCLE (5V)
(V
CC
= 5.0V
10%, T
A
= Over the Operating Range.)
ACCESS
70ns 85ns
100ns
PARAMETER SYMBOL
MIN MAX MIN MAX MIN MAX
UNITS
NOTES
Write Cycle Time
t
WC
70 85
100
ns
Address Setup Time
t
AS
0 0 0
ns
5
WE
Pulse Width
t
WEW
50 65 70
ns
CE
Pulse Width
t
CEW
60 70 75
ns
5
CE2 Pulse Width
t
CE2W
65 75 85
ns
5
Data Setup Time
t
DS
30 35 40
ns
5
Data Hold Time
CE
t
DH
0 0 0
ns
5
Data Hold Time CE2
t
DH
8 8 8
ns
5
Address Hold Time
t
AH
5 5 5
ns
5
WE
Data-Off Tim
e
t
WEZ
25 30 35
ns
Write Recovery Time
t
WR
10 10 10
ns
AC CHARACTERISTICS—WRITE CYCLE (3.3V)
(
V
CC
= 3.3V
10%
, T
A
= Over the Operating Range.)
ACCESS
120ns 150ns
PARAMETER SYMBOL
MIN MAX MIN MAX
UNITS NOTES
Write Cycle Time
t
WC
120
150
ns
Address Setup Time
t
AS
0
0
ns
5
WE
Pulse Width
t
WEW
100
130
ns
CE
and CE2 Pulse Width
t
CEW
110
140
ns
5
Data Setup Time
t
DS
80
90
ns
5
Data Hold Time
CE
t
DH
0
0
ns
5
Data Hold Time CE2
t
DH
10
10
ns
5
Address Hold Time
t
AH
0
0
ns
5
WE
Data-Off Tim
e
t
WEZ
40
50
ns
Write Recovery Time
t
WR
10
10
ns
DS1743/DS1743P Y2K-Compliant, Nonvolatile Time
keeping RAMs
12 of 16
WRITE CYCLE TIMING—WRI
TE-ENABLE CONTROLLED
(See Note 5)
WRITE CYCLE TIMING—
CE
/CE2-CONTROLLED
(See Note 5)
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P16
DS1743-70+
Mfr. #:
Buy DS1743-70+
Manufacturer:
Maxim Integrated
Description:
Real Time Clock TIMEKEEP RAM 8KX8 70NS PB-FREE
Lifecycle:
New from this manufacturer.
Delivery:
DHL
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Ups
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EMS
Payment:
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