256Mb: x4, x8, x16 DDR SDRAM
Electrical Specifications – DC and AC
Table 19:
Reduced Output Drive Characteristics
Characteristics are specified under best, worst, and nominal process variation/conditions
Pull-Down Current (mA)
Voltage
(V)
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
Nominal
Low
3.4
6.9
10.3
13.6
16.9
19.9
22.3
24.7
26.9
29.0
30.6
31.8
32.8
33.5
34.0
34.3
34.5
34.8
35.1
35.4
35.6
35.8
36.1
36.3
36.5
36.7
36.8
Nominal
High
3.8
7.6
11.4
15.1
18.7
22.1
25.0
28.2
31.3
34.1
36.9
39.5
42.0
44.4
46.6
48.6
50.5
52.2
53.9
55.0
56.1
57.1
57.7
58.2
58.7
59.2
59.6
Min
2.6
5.2
7.8
10.4
13.0
15.7
18.2
20.8
22.4
24.1
25.4
26.2
26.6
26.8
27.0
27.2
27.4
27.7
27.8
28.0
28.1
28.2
28.3
28.3
28.4
28.5
28.6
Max
5.0
9.9
14.6
19.2
23.6
28.0
32.2
35.8
39.5
43.2
46.7
50.0
53.1
56.1
58.7
61.4
63.5
65.6
67.7
69.8
71.6
73.3
74.9
76.4
77.7
78.8
79.7
Nominal
Low
–3.5
–6.9
–10.3
–13.6
–16.9
–19.4
–21.5
–23.3
–24.8
–26.0
–27.1
–27.8
–28.3
–28.6
–28.7
–28.9
–28.9
–29.0
–29.2
–29.2
–29.3
–29.5
–29.5
–29.6
–29.7
–29.8
–29.9
Pull-Up Current (mA)
Nominal
High
–4.3
–7.8
–12.0
–15.7
–19.3
–22.9
–26.5
–30.1
–33.6
–37.1
–40.3
–43.1
–45.8
–48.4
–50.7
–52.9
–55.0
–56.8
–58.7
–60.0
–61.2
–62.4
–63.1
–63.8
–64.4
–65.1
–65.8
Min
–2.6
–5.2
–7.8
–10.4
–13.0
–15.7
–18.2
–20.4
–21.6
–21.9
–22.1
–22.2
–22.3
–22.4
–22.6
–22.7
–22.7
–22.8
–22.9
–22.9
–23.0
–23.0
–23.1
–23.2
–23.2
–23.3
–23.3
Max
–5.0
–9.9
–14.6
–19.2
–23.6
–28.0
–32.2
–35.8
–39.5
–43.2
–46.7
–50.0
–53.1
–56.1
–58.7
–61.4
–63.5
–65.6
–67.7
–69.8
–71.6
–73.3
–74.9
–76.4
–77.7
–78.8
–79.7
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DDR_x4x8x16_Core2.fm - 256Mb DDR: Rev. S, Core DDR: Rev. E 9/12 EN
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