參數(shù)資料
型號: HYB18T512160AF
廠商: INFINEON TECHNOLOGIES AG
英文描述: 512-Mbit DDR2 SDRAM
中文描述: 512兆位DDR2 SDRAM的
文件頁數(shù): 96/117頁
文件大?。?/td> 2102K
代理商: HYB18T512160AF
HYB18T512[40/80/16]0AF–[3/3S/3.7/5]
512-Mbit DDR2 SDRAM
Currents Measurement Specifications and Conditions
Data Sheet
96
Rev. 1.3, 2005-01
09112003-SDM9-IQ3P
6.1.1
On Die Termination (ODT) Current
The ODT function adds additional current consumption
to the DDR2 SDRAM when enabled by the EMRS(1).
Depending on address bits A6 & A2 in the EMRS(1) a
full or reduced termination can be selected. The current
consumption for any terminated input pin depends on
whether the input pin is in tri-state or driving “0” or “1”,
as long a ODT is enabled during a given period of time..
See
Table 50
Note:For power consumption calculations the ODT duty cycle has to be taken into account
Table 50
ODT Current
Enabled ODT current per DQ
added
I
DDQ
current for ODT enabled;
ODT is HIGH; Data Bus inputs are floating
ODT current per terminated input pin
EMRS(1) State
A6 = 0, A2 = 1
A6 = 1, A2 = 0
A6 = 1, A2 = 1
A6 = 0, A2 = 1
A6 = 1, A2 = 0
A6 = 1, A2 = 0
Min.
5
2.5
7.5
10
5
15
Typ.
6
3
9
12
6
18
Max.
7.5
3.75
11.25
15
7.5
22.5
Unit
mA/DQ
mA/DQ
mA/DQ
mA/DQ
mA/DQ
mA/DQ
I
ODTO
Active ODT current per DQ
added
I
DDQ
current
for ODT enabled;
ODT is HIGH; worst case of Data Bus inputs are
stable or switching.
I
ODTT
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