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參數資料
| 型號： | W9712G6JB-3 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | DRAM |
| 英文描述： | 8M X 16 DDR DRAM, 0.45 ns, PBGA84 |
| 封裝： | 12.50 X 8 MM, ROHS COMPLIANT, WBGA-84 |
| 文件頁數： | 1/86頁 |
| 文件大?。?/td> | 1027K |
| 代理商： | W9712G6JB-3 |
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W9712G6JB
2M
× 4 BANKS × 16 BIT DDR2 SDRAM
Publication Release Date: Mar. 15, 2010
- 1 -
Revision A01
Table of Contents-
1.
GENERAL DESCRIPTION ...................................................................................................................4
2.
FEATURES ...........................................................................................................................................4
3.
KEY PARAMETERS .............................................................................................................................5
4.
BALL CONFIGURATION ......................................................................................................................6
5.
BALL DESCRIPTION............................................................................................................................7
6.
BLOCK DIAGRAM ................................................................................................................................8
7.
FUNCTIONAL DESCRIPTION..............................................................................................................9
7.1
Power-up and Initialization Sequence ...................................................................................................9
7.2
Mode Register and Extended Mode Registers Operation ...................................................................10
7.2.1
Mode Register Set Command (MRS)...............................................................................10
7.2.2
Extend Mode Register Set Commands (EMRS) ..............................................................11
7.2.2.1
Extend Mode Register Set Command (1), EMR (1)................................................11
7.2.2.2
DLL Enable/Disable................................................................................................12
7.2.2.3
Extend Mode Register Set Command (2), EMR (2)................................................13
7.2.2.4
Extend Mode Register Set Command (3), EMR (3)................................................14
7.2.3
Off-Chip Driver (OCD) Impedance Adjustment ................................................................15
7.2.3.1
Extended Mode Register for OCD Impedance Adjustment ....................................16
7.2.3.2
OCD Impedance Adjust..........................................................................................16
7.2.3.3
Drive Mode .............................................................................................................17
7.2.4
On-Die Termination (ODT)...............................................................................................18
7.2.5
ODT related timings .........................................................................................................18
7.2.5.1
MRS command to ODT update delay.....................................................................18
7.3
Command Function.............................................................................................................................20
7.3.1
Bank Activate Command..................................................................................................20
7.3.2
Read Command...............................................................................................................20
7.3.3
Write Command ...............................................................................................................20
7.3.4
Burst Read with Auto-precharge Command.....................................................................21
7.3.5
Burst Write with Auto-precharge Command.....................................................................21
7.3.6
Precharge All Command ..................................................................................................21
7.3.7
Self Refresh Entry Command ..........................................................................................21
7.3.8
Self Refresh Exit Command.............................................................................................21
7.3.9
Refresh Command ...........................................................................................................22
7.3.10
No-Operation Command ..................................................................................................23
7.3.11
Device Deselect Command..............................................................................................23
7.4
Read and Write access modes ...........................................................................................................23
7.4.1
Posted CAS ....................................................................................................................23
7.4.1.1
Examples of posted CAS operation......................................................................23
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相關代理商/技術參數 |
參數描述 |
|---|---|
| W9712G6KB-25 | 制造商:Winbond Electronics Corp 功能描述:128M DDR2-800, X16 制造商:Winbond Electronics 功能描述:IC MEMORY 制造商:Winbond Electronics Corp 功能描述:IC MEMORY |
| W9712G6KB25I | 制造商:Winbond Electronics 功能描述:IC MEMORY 制造商:Winbond Electronics Corp 功能描述:IC MEMORY |
| W9712G8JB | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4M × 4 BANKS × 8 BIT DDR2 SDRAM |
| W9712G8JB25 | 制造商:Winbond Electronics Corp 功能描述:DRAM Chip DDR2 SDRAM 128M-Bit 16Mx8 1.8V 60-Pin WBGA |
| W9712G8JB25I | 制造商:Winbond Electronics Corp 功能描述:128M DDR2-800, X8, IND TEMP |
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