參數(shù)資料
型號(hào)： HY5DU56422DTP
廠商： Hynix Semiconductor Inc.
英文描述： 256M DDR SDRAM (268,435,456-bit CMOS Double Data Rate(DDR) Synchronous DRAM)
中文描述： 256M DDR內(nèi)存（268435456位CMOS雙數(shù)據(jù)速率（DDR）同步DRAM）
文件頁(yè)數(shù)： 21/37頁(yè)
文件大?。?/td> 414K
代理商： HY5DU56422DTP
Rev. 0.1 /May 2004 21
HY5DU56422D(L)TP
HY5DU56822D(L)TP
HY5DU561622D(L)TP
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
Operating Mode
0*
DS
DLL
A0
DLL enable
0
Enable
1
Diable
BA0
MRS Type
0
MRS
1
EMRS
A1
Output Driver
Impedance Control
0
Full Strength Driver
1
Half Strength Driver
* This part do not support/QFC function, A2 must be programmed to Zero.
An~A3
A2~A0
Operating Mode
0
Valid
Noraml Operation
_
_
All other states reserved
相關(guān)PDF資料
PDF描述
HY5DU56422DTP-H 256M DDR SDRAM (268,435,456-bit CMOS Double Data Rate(DDR) Synchronous DRAM)
HY5DU56422DTP-J 256M DDR SDRAM (268,435,456-bit CMOS Double Data Rate(DDR) Synchronous DRAM)
HY5DU56422DTP-K 256M DDR SDRAM (268,435,456-bit CMOS Double Data Rate(DDR) Synchronous DRAM)
HY5DU56422DTP-L 256M DDR SDRAM (268,435,456-bit CMOS Double Data Rate(DDR) Synchronous DRAM)
HY5DU56422DTP-M 256M DDR SDRAM (268,435,456-bit CMOS Double Data Rate(DDR) Synchronous DRAM)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HY5DU56422DTP-H 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:256M DDR SDRAM (268,435,456-bit CMOS Double Data Rate(DDR) Synchronous DRAM)
HY5DU56422DTP-J 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:256M DDR SDRAM (268,435,456-bit CMOS Double Data Rate(DDR) Synchronous DRAM)
HY5DU56422DTP-K 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:256M DDR SDRAM (268,435,456-bit CMOS Double Data Rate(DDR) Synchronous DRAM)
HY5DU56422DTP-L 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:256M DDR SDRAM (268,435,456-bit CMOS Double Data Rate(DDR) Synchronous DRAM)
HY5DU56422DTP-M 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:256M DDR SDRAM (268,435,456-bit CMOS Double Data Rate(DDR) Synchronous DRAM)
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