DS1742
AC CHARACTERISTICS—WRITE CYCLE (5V)
(VCC = 5.0V ±10%, Over the operating range.)
PARAMETER
SYMBOL 85ns ACCESS
100ns
ACCESS
MIN MAX MIN MAX
Write Cycle Time
tWC
85
100
Address Access Time
tAS
0
0
WE Pulse Width
tWEW
65
70
CE Pulse Width
tCEW
70
75
Data Setup Time
tDS
35
40
Data Hold time
tDH
0
0
Address Hold Time
tAH
5
5
WE Data Off Time
tWEZ
30
35
Write Recovery Time
tWR
5
5
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
AC CHARACTERISTICS—WRITE CYCLE (3.3V)
(VCC = 3.3V ±10%, Over the operating range.)
120ns
PARAMETER
SYMBOL ACCESS
MIN MAX
Write Cycle Time
tWC
120
Address Setup Time
tAS
0
WE Pulse Width
tWEW
100
CE Pulse Width
tCEW
110
Data Setup Time
tDS
80
Data Hold Time
tDH
0
Address Hold Time
tAH
0
WE Data Off Time
tWEZ
40
Write Recovery Time
tWR
10
150ns
ACCESS
MIN MAX
150
0
130
140
90
0
0
50
10
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
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