IS43TR16256A(2012) View Datasheet(PDF) - Integrated Silicon Solution
Part Name
Description
Manufacturer
IS43TR16256A Datasheet PDF : 81 Pages
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IS43/46TR16256A, IS43/46TR16256AL,
IS43/46TR85120A, IS43/46TR85120AL
9.5.2 Derating values DDR3-800/1066/1333/1600 tIS/tIH - ac/dc based AC175 Threshold
” tIS, ” tIH derating in [ps] AC/DC based
AC175 Threshold -> VIH(ac)=VREF(dc)+175mV, VIL(ac)=VREF(dc)-175mV
CK,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
” tIS ” tIH ” tIS ” tIH ” tIS ” tIH ” tIS ” tIH ” tIS ” tIH ” tIS ” tIH
2.0 88
50
88
50
88
50
96
58 104 66 112 74
1.5 59
34
59
34
59
34
67
42
75
50
83
58
1.0 0
0
0
0
0
0
8
8
16 16 24 24
CMADDD/ 0.9 -2
-4
-2
-4
-2
-4
6
4
14 12 22 20
Slew rate 0.8 -6 -10 -6
-10 -6
-10
2
-2
10
6
18 14
V/ns
0.7 -11 -16 -11 -16 -11 -16
-3
-8
5
0
13
8
0.6 -17 -26 -17 -26 -17 -26
-9
-18
-1 -10
7
-2
0.5 -35 -40 -35 -40 -35 -40 -27 -32 -19 -24 -11 -16
0.4 -62 -60 -62 -60 -62 -60 -54 -52 -46 -44 -38 -36
1.2 V/ns
” tIS ” tIH
120 84
91 68
32 34
30 30
26 24
21 18
15
8
-2
-6
-30 -26
1.0 V/ns
” tIS ” tIH
128 100
99 84
40 50
38 46
34 40
29 34
23 24
5
10
-22 -10
9.5.3 Derating values DDR3-800/1066/1333/1600 tIS/tIH - ac/dc based – Alternate AC150 Threshold
” tIS, ” tIH derating in [ps] AC/DC based
Alternate AC150 Threshold -> VIH(ac)=VREF(dc)+150mV, VIL(ac)=VREF(dc)-150mV
CK,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
” tIS ” tIH ” tIS ” tIH ” tIS ” tIH ” tIS ” tIH ” tIS ” tIH ” tIS ” tIH ” tIS ” tIH
2.0 75 50 75 50 75 50 83 58 91 66 99 74 107 84
1.5 50 34 50 34 50 34 58 42 66 50 74 58 82 68
1.0 0
0
0
0
0
0
8
8
16 16 24 24 32 34
CADDMD/ 0.9 0
-4
0
-4
0
-4
8
Slew rate 0.8 0
-10
0
-10
0
-10
8
V/ns
0.7 0 -16
0 -16
0
-16
8
4
16 12 24 20 32 30
-2
16
6
24 14 32 24
-8
16
0
24
8
32 18
0.6 -1 -26 -1 -26 -1 -26
7
-18 15 -10 23
-2 31
8
0.5 -10 -40 -10 -40 -10 -40 -2 -32 6 -24 14 -16 22 -6
0.4 -25 -60 -25 -60 -25 -60 -17 -52 -9 -44 -1 -36 7 -26
1.0 V/ns
” tIS ” tIH
115 100
90 84
40 50
40 46
40 40
40 34
39 24
30 10
15 -10
9.5.4 Required time tVAC above VIH(ac) {below VIL(ac)} for valid transition
Slew Rate [V/ns]
tVAC @ AC175 [ps]
min
max
> 2.0
2.0
1.5
1.0
0.9
0.8
0.7
0.6
0.5
< 0.5
75
-
57
-
50
-
38
-
34
-
29
-
22
-
13
-
0
-
0
-
tVAC @ AC150 [ps]
min
max
175
-
170
-
167
-
163
-
162
-
161
-
159
-
155
-
150
-
150
-
Integrated Silicon Solution, Inc. – www.issi.com –
71
Rev. 00A
11/14/2012
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