HYB18H256321BF QIMONDA [Qimonda AG], HYB18H256321BF Datasheet - Page 26

• Manufacturer Part Number: HYB18H256321BF
• Description: 256-Mbit GDDR3 Graphics RAM GDDR3 Graphics RAM
• Manufacturer: QIMONDA [Qimonda AG]

4.6
4.7
4.7.1
Figure 14
worst case conditions. The actual Driver Pull-Down and Pull-Up current must lie between these two bounding curves. The value
of the external ZQ resistor is 240 Ω, setting the nominal driver output impedance to 40 Ω.
Table 14
IV characteristics.
Rev. 0.80, 2007-09
09132007-07EM-7OYI
Parameter
Input capacitance:
A0-A11, BA0-1, CKE, CS, CAS, RAS, WE, CKE, RES,CLK,CLK
Input capacitance:
DQ0-DQ31, RDQS0-RDQS3, WDQS0-WDQS3, DM0-DM3
lists the numerical values of the minimum and maximum allowed values of the output driver Pull-Down and Pull-Up
represents the driver Pull-Down and Pull-Up IV characteristics under process, voltage and temperature best and
Pin Capacitances
Driver current characteristics
Driver IV characteristics at 40 Ohms
Pin Capacitances (VDDQ = 1.8 V, TA = 25°C, f = 1 MHz)
40 Ohm Driver Pull-Down and Pull-Up Characteristics
26
Symbol
CI,CCK
CIO
Min.
1.0
2.0
Max.
2.5
3.0
Internet Data Sheet
HYB18H256321BF
256-Mbit GDDR3
FIGURE 14
Unit
pF
pF
TABLE 13
Note