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HY5DU561622FTP-5I Datasheet(PDF) 20 Page - Hynix Semiconductor

Part No. HY5DU561622FTP-5I
Description  256M(16Mx16) DDR SDRAM
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Maker  HYNIX [Hynix Semiconductor]
Homepage  http://www.skhynix.com/kor/main.do
Logo HYNIX - Hynix Semiconductor

HY5DU561622FTP-5I Datasheet(HTML) 20 Page - Hynix Semiconductor

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Rev. 1.1 / Mar. 2008
20
1HY5DU561622FTP-5I
HY5DU561622FTP-4I
EXTENDED MODE REGISTER SET (EMRS)
The Extended Mode Register controls functions beyond those controlled by the Mode Register; these additional func-
tions include DLL enable/disable, output driver strength selection(optional). These functions are controlled via the bits
shown below. The Extended Mode Register is programmed via the Mode Register Set command ( BA0=1 and BA1=0)
and will retain the stored information until it is programmed again or the device loses power.
The Extended Mode Register must be loaded when all banks are idle and no bursts are in progress, and the controller
must wait the specified time before initiating any subsequent operation. Violating either of these requirements will
result in unspecified operation.
BA1
BA0
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
0
1
RFU*
DS
RFU*
DS
DLL
A0
DLL enable
0Enable
1Diable
BA0
MRS Type
0MRS
1EMRS
* All bits in RFU address fields must be programmed to Zero, all other states are reserved for future usage.
A6
A1
Output Driver Impedance Control
00
Full
0
1
Half
10
RFU*
11
RFU*


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