參數(shù)資料
型號: HYS72T32000HP
廠商: QIMONDA
英文描述: 240-Pin Registered DDR2 SDRAM Modules
中文描述: 240針DDR2 SDRAM的注冊模塊
文件頁數(shù): 35/53頁
文件大?。?/td> 1264K
代理商: HYS72T32000HP
Internet Data Sheet
Rev. 1.01, 2006-09
03292006-ZZHP-PR83
35
HYS72T[32/64]xxxHP–[3S/3.7]–A
Registered DDR2 SDRAM Modules
3.4.2
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 A[6,2] in the EMRS(1) a “weak” or “strong” termination can be selected. The current consumption for any
terminated input pin, depends on the input pin is in tri-state or driving 0 or 1, as long a ODT is enabled during a given period of
time.
TABLE 26
ODT current per terminated pin
Parameter
Symbol
Min.
Typ.
Max.
Unit
EMRS(1) State
Enabled ODT current per DQ
ODT is HIGH; Data Bus inputs are FLOATING
I
ODTO
5
2.5
7.5
10
5
15
6
3
9
12
6
18
7.5
3.75
11.25
15
7.5
22.5
mA/DQ
mA/DQ
mA/DQ
mA/DQ
mA/DQ
mA/DQ
A6 = 0, A2 = 1
A6 = 1, A2 = 0
A6 = 1, A2 = 1
A6 = 0, A2 = 1
A6 = 1, A2 = 0
A6 = 1, A2 = 0
Active ODT current per DQ
ODT is HIGH; worst case of Data Bus inputs are
STABLE or SWITCHING.
I
ODTT
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