1Gb: x4, x8, x16 DDR3 SDRAM
Speed Bin Tables
Table 55:
DDR3-800, DDR3-1066, DDR3-1333, and DDR3-1600 Derating Values for
t
IS/
t
IH – AC/DC-
Based
AC175 threshold
Δ
t
IS,
Δ
t
IH Derating (ps) – AC/DC-Based
AC175 Threshold: V
IH
(
AC
) = V
REF
(
DC
) + 175mV, V
IL
(
AC
) = V
REF
(
DC
) - 175mV
CK, CK# Differential Slew Rate
CMD/
ADDR
Slew Rate
V/ns
2.0
1.5
1.0
0.9
0.8
0.7
0.6
0.5
0.4
4.0 V/ns
Δ
t
IS
88
59
0
–2
–6
–11
–17
–35
–62
Δ
t
IH
50
34
0
–4
–10
–16
–26
–40
–60
3.0 V/ns
Δ
t
IS
88
59
0
–2
–6
–11
–17
–35
–62
Δ
t
IH
50
34
0
–4
–10
–16
–26
–40
–60
2.0 V/ns
Δ
t
IS
88
59
0
–2
–6
–11
–17
–35
–62
Δ
t
IH
50
34
0
–4
–10
–16
–26
–40
–60
1.8 V/ns
Δ
t
IS
96
67
8
6
2
–3
–9
–27
–54
Δ
t
IH
58
42
8
4
–2
–8
–18
–32
–52
1.6 V/ns
Δ
t
IS
104
75
16
14
10
5
–1
–19
–46
Δ
t
IH
66
50
16
12
6
0
–10
–24
–44
1.4 V/ns
Δ
t
IH
112
83
24
22
18
13
7
–11
–38
Δ
t
IH
74
58
24
20
14
8
–2
–16
–36
1.2 V/ns
Δ
t
IS
120
91
32
30
26
21
15
–2
–30
Δ
t
IH
84
68
34
30
24
18
8
–6
–26
1.0 V/ns
Δ
t
IS
128
99
40
38
34
29
23
5
–22
Δ
t
IH
100
84
50
46
40
34
24
10
–10
Table 56:
DDR3-1333 and DDR3-1600 Derating Values for
t
IS/
t
IH – AC/DC-Based
AC150 threshold
Δ
t
IS,
Δ
t
IH Derating (ps) – AC/DC-Based
AC150 Threshold: V
IH
(
AC
) = V
REF
(
DC
) + 150mV, V
IL
(
AC
) = V
REF
(
DC
) - 150mV
CK, CK# Differential Slew Rate
CMD/
ADDR
Slew Rate
V/ns
2.0
1.5
1.0
0.9
0.8
0.7
0.6
0.5
0.4
4.0 V/ns
Δ
t
IS
75
50
0
0
0
0
–1
–10
–25
Δ
t
IH
50
34
0
–4
–10
–16
–26
–40
–60
3.0 V/ns
Δ
t
IS
75
50
0
0
0
0
–1
–10
–25
Δ
t
IH
50
34
0
–4
–10
–16
–26
–40
–60
2.0 V/ns
Δ
t
IS
75
50
0
0
0
0
–1
–10
–25
Δ
t
IH
50
34
0
–4
–10
–16
–26
–40
–60
1.8 V/ns
Δ
t
IS
83
58
8
8
8
8
7
–2
–17
Δ
t
IH
58
42
8
4
–2
–8
–18
–32
–52
1.6 V/ns
Δ
t
IS
91
66
16
16
16
16
15
6
–9
Δ
t
IH
66
50
16
12
6
0
–10
–24
–44
1.4 V/ns
Δ
t
IH
99
74
24
24
24
24
23
14
–1
Δ
t
IH
74
58
24
20
14
8
–2
–16
–36
1.2 V/ns
Δ
t
IS
107
82
32
32
32
32
31
22
7
Δ
t
IH
84
68
34
30
24
18
8
–6
–26
1.0 V/ns
Δ
t
IS
115
90
40
40
40
40
39
30
15
Δ
t
IH
100
84
50
46
40
34
24
10
–10
PDF: 09005aef826aa906/Source: 09005aef82a357c3
1Gb_DDR3_3.fm - Rev. D 8/1/08 EN
78
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