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參數(shù)資料
| 型號(hào)： | HY5DV641622AT |
| 廠商： | Hynix Semiconductor Inc. |
| 英文描述： | 64M(4Mx16) DDR SDRAM |
| 中文描述： | 64M號(hào)（4Mx16）DDR SDRAM內(nèi)存 |
| 文件頁數(shù)： | 20/27頁 |
| 文件大?。?/td> | 276K |
| 代理商： | HY5DV641622AT |
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Rev. 0.7/May. 02
20
HY5DV641622AT
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
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
0
1
RFU*
DS
RFU*
DS
DLL
A0
DLL enable
0
Enable
1
Diable
BA0
MRS Type
0
MRS
1
EMRS
* 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
0
0
Full
0
1
Half
1
0
RFU*
1
1
Matched Impedance (Weak)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HY5DV641622AT-33 | 64M(4Mx16) DDR SDRAM |
| HY5DV641622AT-36 | 64M(4Mx16) DDR SDRAM |
| HY5DV641622AT-4 | 64M(4Mx16) DDR SDRAM |
| HY5DV641622AT-5 | 64M(4Mx16) DDR SDRAM |
| HY5PS121621FP | 512Mb DDR2 SDRAM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HY5DV641622AT-33 | 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:64M(4Mx16) DDR SDRAM |
| HY5DV641622AT-36 | 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:64M(4Mx16) DDR SDRAM |
| HY5DV641622AT-4 | 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:64M(4Mx16) DDR SDRAM |
| HY5DV641622AT-5 | 制造商:SK Hynix Inc 功能描述: |
| HY5DV651622TC-G55 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DDR Synchronous DRAM |
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