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| HYB25D256800BT Datasheet, PDF (13/29 Pages) Infineon Technologies AG – 256MBit Double Data Rata SDRAM | |||
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HYB25D256[800/160]BT(L)-[5/5A]
256MBit Double Data Rata SDRAM
Preliminary DDR400 Data Sheet Addendum
Extended Mode Register Definition
BA1 BA0 A12 A11 A10 A9
A8 A7
A6 A5 A4
A3
A2
A1 A0 Address Bus
0* 1*
Operating Mode
0
DS
DLL
Extended
Mode Register
An - A3
0
-
A2 - A0
Valid
-
Operating Mode
Normal Operation
All other states
Reserved
Drive Strength
A1
Drive Strength
0
Normal
1
Weak
A2
0
must be set to 0
* BA0 and BA1 must be 1, 0 to select the Extended Mode Register
(vs. the base Mode Register)
A0
DLL
0
Enable
1
Disable
2003-01-10, V0.9
Page 13 of 29
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