HYB18H256321BF QIMONDA [Qimonda AG], HYB18H256321BF Datasheet - Page 25

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

4.4
1) All voltages referenced to
2)
3) The value of
4.5
Rev. 0.80, 2007-09
09132007-07EM-7OYI
Parameter
Clock Input Mid-Point Voltage, CLK and CLK
Clock Input Voltage Level, CLK and CLK
Clock DC Input Differential Voltage, CLK and
CLK
Clock AC Input Differential Voltage, CLK and CLK
AC Differential Crossing Point Input Voltage
V
ID
is the magnitude of the difference between the input level on CLK and the input level on CLK.
V
IX
is expected to equal 0.7 ×
Differential Clock DC and AC Levels
Output Test Conditions
V
SS.
V
DDQ
of the transmitting device and must track variations in the DC level of the same.
Differential Clock DC and AC Input conditions (0 °C ≤ T
DQS
DQ
Symbol
V
V
V
V
V
MP(DC)
IN(DC)
ID(DC)
ID(AC)
IX(AC)
25
Min.
0.7 ×
0.42
0.3
0.5
0.7 ×
60 Ohm
Test point
V
V
V
DDQ
DDQ
DDQ
– 0.10
– 0.15
Limit Values
Max.
0.7 ×
V
V
V
0.7 ×
DDQ
DDQ
DDQ
+ 0.5
V
+ 0.3
V
DDQ
DDQ
+ 0.10
+ 0.15
Output Test Circuit
Internet Data Sheet
HYB18H256321BF
256-Mbit GDDR3
FIGURE 13
TABLE 12
Unit
V
V
V
V
V
c
≤ 85 °C)
Note
1)
1)
1)
1)2)
1)3)