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IS46DR16640C Scheda tecnica(PDF) 23 Page - Integrated Silicon Solution, Inc

Il numero della parte IS46DR16640C
Spiegazioni elettronici  Differential data strobe
PDF  49 Pages
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Produttore elettronici  ISSI [Integrated Silicon Solution, Inc]
Homepage  http://www.issi.com
Logo ISSI - Integrated Silicon Solution, Inc

IS46DR16640C Scheda tecnica(HTML) 23 Page - Integrated Silicon Solution, Inc

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Integrated Silicon Solution, Inc. — www.issi.com
23
Rev. 00A
6/4/2013
IS43/46DR81280C, IS43/46DR16640C
7. Timings are specified with CK/CK differential slew rate of 2.0 V/ns. Timings are guaranteed for DQS signals with
a differential slew rate of 2.0 V/ns in differential strobe mode and a slew rate of 1 V/ns in single ended mode. See
Specific Notes on derating for other slew rate values.
8. Data setup and hold time derating (tds, tdh).
DtDS, DtDH derating values for DDR2-400, DDR2-553 (All units in ‘ps’; the note applies to the entire table)
DQS, DQS Differential Slew Rate
4.0 V/ns
3.0 V/ns
2.0 V/ns
1.8 V/ns
1.6 V/ns
1.4 V/ns
1.2 V/ns
1.0 V/ns
0.8 V/ns
DtDS DtDH DtDS DtDH DtDS DtDH DtDS DtDH DtDS DtDH DtDS DtDH DtDS DtDH DtDS DtDH DtDS DtDH
DQ
Slew
rate
V/ns
2.0
125
45
125
45
125
45
-
-
-
-
-
-
-
-
-
-
-
-
1.5
83
21
83
21
83
21
95
33
-
-
-
-
-
-
-
-
-
-
1.0
0
0
0
0
0
0
12
12
24
24
-
-
-
-
-
-
-
-
0.9
-
-
-11
-14
-11
-14
1
-2
13
10
25
22
-
-
-
-
-
-
0.8
-
-
-
-
-25
-31
-13
-19
-1
-7
11
5
23
17
-
-
-
-
0.7
-
-
-
-
-
-
-31
-42
-19
-30
-7
-18
5
-6
17
6
-
-
0.6
-
-
-
-
-
-
-
-
-43
-59
-31
-47
-19
-35
-7
-23
5
-11
0.5
-
-
-
-
-
-
-
-
-
-
-74
-89
-62
-77
-50
-65
-38
-53
0.4
-
-
-
-
-
-
-
-
-
-
-
-
-127 -140 -115 -128 -103 -116
DDR2-667/800 tDS/tDH derating with differential data strobe
DtDS, DtDH derating values for DDR2-667, DDR2-800 (All units in ‘ps’; the note applies to the entire table)
DQS, DQS Differential Slew Rate
4.0 V/ns
3.0 V/ns
2.0 V/ns
1.8 V/ns
1.6 V/ns
1.4 V/ns
1.2 V/ns
1.0 V/ns
0.8 V/ns
DtDS DtDH DtDS DtDH DtDS DtDH DtDS DtDH DtDS DtDH DtDS DtDH DtDS DtDH DtDS DtDH DtDS DtDH
DQ
Slew
rate
V/ns
2.0
100
45
100
45
100
45
-
-
-
-
-
-
-
-
-
-
-
-
1.5
67
21
67
21
67
21
79
33
-
-
-
-
-
-
-
-
-
-
1.0
0
0
0
0
0
0
12
12
24
24
-
-
-
-
-
-
-
-
0.9
-
-
-5
-14
-5
-14
7
-2
19
10
31
22
-
-
-
-
-
-
0.8
-
-
-
-
-13 -31
-1
-19
11
-7
23
5
35
17
-
-
-
-
0.7
-
-
-
-
-
-
-10 -42
2
-30
14
-18
26
-6
38
6
-
-
0.6
-
-
-
-
-
-
-
-
-10 -59
2
-47
14
-35
26
-23
38
-11
0.5
-
-
-
-
-
-
-
-
-
-
-24 -89 -12 -77
0
-65
12
-53
0.4
-
-
-
-
-
-
-
-
-
-
-
-
-52 -140 -40 -128 -28 -116
DDR2-400/533 tDS/tDH derating with differential data strobe



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