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參數(shù)資料
| 型號： | W9425G8DH-6 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | DRAM |
| 英文描述： | 32M X 8 DDR DRAM, 0.7 ns, PDSO66 |
| 封裝： | 0.400 INCH, 0.65 MM PITCH, ROHS COMPLIANT, TSOP2-66 |
| 文件頁數(shù)： | 8/53頁 |
| 文件大小： | 1920K |
| 代理商： | W9425G8DH-6 |
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W9425G8DH
Publication Release Date: Nov. 20, 2007
- 16 -
Revision A4
7.10.3 CAS Latency field (A6 to A4)
This field specifies the number of clock cycles from the assertion of the Read command to the first
data read. The minimum values of CAS Latency depend on the frequency of CLK.
A6
A5
A4
CAS LATENCY
0
Reserved
0
1
Reserved
0
1
0
2
0
1
3
1
0
Reserved
1
0
1
Reserved
1
0
2.5
1
Reserved
7.10.4 DLL Reset bit (A8)
This bit is used to reset DLL. When the A8 bit is "1", DLL is reset.
7.10.5 Mode Register /Extended Mode register change bits (BS0, BS1)
These bits are used to select MRS/EMRS.
BS1
BS0
A12-A0
0
Regular MRS Cycle
0
1
Extended MRS Cycle
1
x
Reserved
7.10.6 Extended Mode Register field
1) DLL Switch field (A0)
This bit is used to select DLL enable or disable
A0
DLL
0
Enable
1
Disable
2) Output Driver Size Control field (A1)
This bit is used to select Output Driver Size, both Full strength and Half strength are based on
JEDEC standard.
A1
OUTPUT DRIVER
0
Full Strength
1
Half Strength
7.10.7 Reserved field
Test mode entry bit (A7)
This bit is used to enter Test mode and must be set to "0" for normal operation.
Reserved bits (A9, A10, A11, A12)
These bits are reserved for future operations. They must be set to "0" for normal operation.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W946432AD-6 | 2M X 32 DDR DRAM, 0.1 ns, PQFP100 |
| W947D6HBHX6E | 8M X 16 DDR DRAM, 5 ns, PBGA60 |
| W9602BB | PUSHBUTTON SWITCH, SPST, MOMENTARY, 10A, 28VDC, PANEL MOUNT-THREADED |
| W9605BB | PUSHBUTTON SWITCH, SPST, MOMENTARY, 10A, 28VDC, PANEL MOUNT-THREADED |
| W9606BB | PUSHBUTTON SWITCH, SPDT, MOMENTARY, 10A, 28VDC, PANEL MOUNT-THREADED |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W9425G8EH | 制造商:WINBOND 制造商全稱:Winbond 功能描述:8M × 4 BANKS × 8 BITS DDR SDRAM |
| W946432AD | 制造商:WINBOND 制造商全稱:Winbond 功能描述:512K X 4 BANKS X 32 BITS DDR SDRAM |
| W9464G6IB | 制造商:WINBOND 制造商全稱:Winbond 功能描述:1M × 4 BANKS × 16 BITS DDR SDRAM |
| W9464G6IH | 制造商:WINBOND 制造商全稱:Winbond 功能描述:1M ?? 4 BANKS ?? 16 BITS DDR SDRAM |
| W9464G6JH | 制造商:WINBOND 制造商全稱:Winbond 功能描述:1M ? 4 BANKS ? 16 BITS DDR SDRAM |
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