2GB-DDR2-AS4C256M8D2 Datasheet, PDF (55/70 Pages) Alliance Semiconductor Corporation – Weak Strength Data-Output Driver Option

2Gb DDR2 - AS4C256M8D2
Table 1. Full Strength Default Pulldown Driver Characteristics
Pulldow n Current (mA)
Voltage (V)
Minimum (23.4 Ohms)
Nominal Default
Low (18 ohms)
Nominal Default
High (18 ohms)
Maximum (12.6 Ohms)
0.2
8.5
0.3
12.1
0.4
14.7
0.5
16.4
0.6
17.8
0.7
18.6
0.8
19.0
0.9
19.3
1.0
19.7
1.1
19.9
1.2
20.0
1.3
20.1
1.4
20.2
1.5
20.3
1.6
20.4
1.7
20.6
1.8
1.9
11.3
11.8
16.5
16.8
21.2
22.1
25.0
27.6
28.3
32.4
30.9
36.9
33.0
40.9
34.5
44.6
35.5
47.7
36.1
50.4
36.6
52.6
36.9
54.2
37.1
55.9
37.4
57.1
37.6
58.4
37.7
59.6
37.9
60.9
Figure 1. DDR2 Default Pulldown Characteristics for Full Strength Driver
120
15.9
23.8
31.8
39.7
47.7
55.0
62.3
69.4
75.3
80.5
84.6
87.7
90.8
92.9
94.9
97.0
99.1
101.1
100
Maximum
80
Nominal
Default
60
High
40
Nominal
Default
Low
20
Minimum
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8
0.3 0.5 0.7 0.9 1.1 1.3 1.5 1.7 1.9
VOUT to VSSQ (V)
Confidential
-55/70-
Rev.1.0 Sep. 2015