NTC Proprietary
Level: Property
DDR3(L)-2Gb SDRAM
NT5CB(C)256M8JQ/NT5CB(C)128M16JR
Derating values DDR3- 1866/2133 tDS/tDH - AC/DC based AC135 Threshold
DDR3
Alternate AC135 Threshold -> VIH(ac)=VREF(dc)+135mV, VIL(ac)=VREF(dc)-135mV
Alternate DC100 Threshold -> VIH(dc)=VREF(dc)+100mV, VIL(dc)=VREF(dc)-100mV
DQS, Differential Slew Rate
8.0 V/ns 7.0 V/ns 6.0 V/ns 5.0 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
1.2 V/ns
1.0 V/ns
△tDS △tDH △tDS △tDH △tDS △tDH △tDS △tDH △tDS △tDH △tDS △tDH △tDS △tDH △tDS △tDH △tDS △tDH △tDS △tDH △tDS △tDH △tDS △tDH
34 25 34 25 34 25
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
4
29 21 29 21 29 21 29
23 17 23 17 23 17 23
21
17
10
-
-
3.5
3
23
14
17
10
-
-
-
-
-
-
14 10 14 10 14
14
10
2.5
DQ
Slew
rate
-
-
0
0
0
0
0
0
0
0
0
0
-
-
-
-
-
-
-
-
-
-
-
-
2
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-23 -17 -23 -17 -23 -17 -23 -17 -15 -9
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1.5
1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-68 -50 -68 -50 -68 -50 -60 -42 -52 -34
-
-
-
-
-
-
-
-
-
-
-
-
-66 -54 -66 -54 -58 -46 -50 -38 -42 -30
0.9
0.8
0.7
0.6
0.5
0.4
-
-
-
-
-
-
-
-
-
-
-64 -60 -56 -52 -48 -44 -40 -36 -32 -26
V/ns
-
-
-
-
-
-
-
-
-53 -59 -45 -51 -37 -43 -29 -33 -21 -17
-
-
-
-
-
-
-43 -61 -35 -53 -27 -43 -19 -27
-
-
-
-
-39 -66 -31 -56 -23 -40
-38 -76 -30 -60
-
-
NOTE1: Cell contents shaded in gray are defined as ‘not supported’.
Derating values DDR3- 1600 tDS/tDH - AC/DC based AC135 Threshold
DDR3
Alternate AC135 Threshold -> VIH(ac)=VREF(dc)+135mV, VIL(ac)=VREF(dc)-135mV
Alternate DC100 Threshold -> VIH(dc)=VREF(dc)+100mV, VIL(dc)=VREF(dc)-100mV
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
△tDS △tDH △tDS △tDH △tDS △tDH △tDS △tDH △tDS △tDH △tDS △tDH △tDS △tDH △tDS △tDH
2
68
45
50
34
68
45
50
34
68
45
50
34
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1.5
53
42
1
0
0
0
0
0
0
8
8
16
16
-
-
-
-
-
-
DQ
Slew rate
V/ns
0.9
0.8
0.7
0.6
0.5
0.4
-
-
-
-
-
-
-
-
-
-
-
-
2
-
-4
-
2
3
-
-4
10
11
14
-
4
-2
-8
-
18
19
22
25
-
12
6
26
27
30
33
29
-
20
14
8
-
-
-
-
-10
35
38
41
37
30
24
18
8
-
-
-
-
-
-
-
-
0
46
49
45
38
34
24
10
-10
-
-
-
-10
-
-2
-16
-
-
-
-
-
-
-6
-
-
-
-
-
-
-
-26
NOTE1: Cell contents shaded in gray are defined as ‘not supported’.
Version 1.4
05/2019
151
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