1Gb DDR3 SDRAM A-Die
NT5CB256M4AN / NT5CB128M8AN / NT5CB64M16AP
100
REV 1.2
01 / 2009
ΔtIS ΔtIH ΔtIS ΔtIH ΔtIS ΔtIH ΔtIS ΔtIH ΔtIS ΔtIH ΔtIS ΔtIH ΔtIS ΔtIH ΔtIS ΔtIH
2.0
88
50
88
50
88
50
96
58
104
66
112
74
120
84
128
100
1.5
59
34
59
34
59
34
67
42
75
50
83
58
91
68
99
84
1.0
0
8
16
24
32
34
40
50
0.9
-2
-4
-2
-4
-2
-4
6
4
14
12
22
20
30
38
46
0.8
-6
-10
-6
-10
-6
-10
2
-2
10
6
18
14
26
24
34
40
0.7
-11
-16
-11
-16
-11
-16
-3
-8
5
0
13
8
21
18
29
34
0.6
-17
-26
-17
-26
-17
-26
-9
-18
-1
-10
7
-2
15
8
23
24
0.5
-35
-40
-35
-40
-35
-40
-27
-32
-19
-24
-11
-16
-2
-6
5
10
0.4
-62
-60
-62
-60
-62
-60
-54
-52
-46
-44
-38
-36
-30
-26
-22
-10
ΔtIS ΔtIH ΔtIS ΔtIH ΔtIS ΔtIH ΔtIS ΔtIH ΔtIS ΔtIH ΔtIS ΔtIH ΔtIS ΔtIH ΔtIS ΔtIH
2.0
75
50
75
50
75
50
83
58
91
66
99
74
107
84
115
100
1.5
50
34
50
34
50
34
58
42
66
50
74
58
82
68
90
84
1.0
0
8
16
24
32
34
40
50
0.9
0
-4
0
-4
0
-4
8
4
16
12
24
20
32
30
40
46
0.8
0
-10
0
-10
0
-10
8
-2
16
6
24
14
32
24
40
0.7
0
-16
0
-16
0
-16
8
-8
16
0
24
8
32
18
40
34
0.6
-1
-26
-1
-26
-1
-26
7
-18
15
-10
23
-2
31
8
39
24
0.5
-10
-40
-10
-40
-10
-40
-2
-32
6
-24
14
-16
22
-6
30
10
0.4
-25
-60
-25
-60
-25
-60
-17
-52
-9
-44
-1
-36
7
-26
15
-10
1.2 V/ns
1.0 V/ns
4.0 V/ns
3.0 V/ns
2.0 V/ns
1.8 V/ns
1.6 V/ns
1.4 V/ns
Derating values DDR3-1333/1600 tIS/tIH - ac/dc based - Alternate
AC150 Threshold
ΔtIS, ΔtIH derating in [ps] AC/DC based
Alternate AC150 Threshold -> VIH(ac)=VREF(dc)+150mV, VIL(ac)=VREF(dc)-150mV
CK,
Differential Slew Rate
C
M
D
/A
D
S
le
w
ra
te
V
/ns
Derating values DDR3-800/1066/1333/1600 tIS/tIH - ac/dc based
ΔtIS, ΔtIH derating in [ps] AC/DC based
Alternate AC150 Threshold -> VIH(ac)=VREF(dc)+175mV, VIL(ac)=VREF(dc)-175mV
CK,
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
C
M
D
/A
D
S
le
w
ra
te
V
/ns
Required time tVAC above VIH(ac) {below VIL(ac)} for valid transition
Slew Rate [V/ns]
tVAC@175mV [ps]
min
max
min
max
>2.0
75
-
175
-
2
57
-
170
-
1.5
50
-
167
-
1
38
-
163
-
0.9
34
-
162
-
0.8
29
-
161
-
0.7
22
-
159
-
0.6
13
-
155
-
0.5
0
-
150
-
<0.5
0
-
150
-