HYB18H1G321AF QIMONDA [Qimonda AG], HYB18H1G321AF Datasheet - Page 32

• Manufacturer Part Number: HYB18H1G321AF
• Description: GDDR3 Graphics RAM 1-Gbit GDDR3 Graphics RAM
• Manufacturer: QIMONDA [Qimonda AG]

5.7.2
Figure 17
conditions. The actual DQ termination Pull-Up current must lie between these two bounding curves. The value of the external
ZQ resistor is 240 Ω, setting the nominal DQ termination impedance to 60 Ω. (Extended Mode Register programmed to ZQ/4).
Rev. 0.92, 2007-10
06122007-MW7D-3G3M
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
represents the DQ termination Pull-Up IV characteristic under process, voltage and temperature best and worst case
Termination IV Characteristic at 60 Ohms
Minimum
2.32
4.56
6.69
8.74
10.70
12.56
14.34
16.01
17.61
19.11
20.53
21.92
23.29
24.65
26.00
27.35
28.70
30.08
—
—
Pull-Down Current (mA)
Maximum
3.04
5.98
8.82
11.56
14.19
16.72
19.14
21.44
23.61
26.10
28.45
30.45
32.73
34.95
37.10
39.15
41.01
42.53
43.71
44.89
32
Programmed Driver IV Characteristics at 40 Ohm
Minimum
-2.44
-4.79
-7.03
-9.18
-11.23
-13.17
-15.01
-16.74
-18.37
-19.90
.21.34
-22.72
-24.07
-25.40
-26.73
-28.06
-29.37
-30.66
—
—
Pull-Up Current (mA)
HYB18H1G321AF–10/11/14
Maximum
-3.27
-6.42
-9.45
-12.37
-15.17
-17.83
-20.37
-22.78
-25.04
-27.17
-29.17
-31.25
-33.00
-35.00
-37.00
-39.14
-41.25
-43.29
-45.23
-47.07
Internet Data Sheet
TABLE 16
1-Gbit GDDR3