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參數資料
| 型號： | W986416CH-8H |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | DRAM |
| 英文描述： | x16 SDRAM |
| 中文描述： | 4M X 16 SYNCHRONOUS DRAM, 6 ns, PDSO54 |
| 封裝： | 0.400 INCH, 0.80 MM PITCH, TSOP2-54 |
| 文件頁數： | 11/48頁 |
| 文件大小： | 1647K |
| 代理商： | W986416CH-8H |
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W986416DH
Publication Release Date: April 11, 2002
- 11 -
Revision A4
No Operation Command
The No Operation Command should be used in cases when the SDRAM is in a idle or a wait state to
prevent the SDRAM from registering any unwanted commands between operations. A No Operation
Command is registered when CS is low with RAS, CAS, and WE held high at the rising
edge of the clock. A No Operation Command will not terminate a previous operation that is still
executing, such as a burst read or write cycle.
Deselect Command
The Deselect Command performs the same function as a No Operation Command. Deselect
Command occurs when CS is brought high, the RAS, CAS, and WE signals become don't
cares.
Clock Suspend Mode
During normal access mode, CKE must be held high enabling the clock. When CKE is registered low
while at least one of the banks is active, Clock Suspend Mode is entered. The Clock Suspend mode
deactivates the internal clock and suspends any clocked operation that was currently being executed.
There is a one clock delay between the registration of CKE low and the time at which the SDRAM
operation suspends. While in Clock Suspend mode, the SDRAM ignores any new commands that are
issued. The Clock Suspend mode is exited by bringing CKE high. There is a one clock cycle delay
from when CKE returns high to when Clock Suspend mode is exited.
相關PDF資料 |
PDF描述 |
|---|---|
| W986432DH | 512K ⅴ 4 BANKS ⅴ 32 BITS SDRAM |
| W986432AH | 512K x 4 BANKS x 32 BITS SDRAM |
| W986432AH-55 | x32 SDRAM |
| W986432AH-6 | x32 SDRAM |
| W986432AH-7 | x32 SDRAM |
相關代理商/技術參數 |
參數描述 |
|---|---|
| W986416DH | 制造商:WINBOND 制造商全稱:Winbond 功能描述:1M X 4 BANKS X 16 BITS SDRAM |
| W986416DH-5 | 制造商:Winbond Electronics Corp 功能描述:4M X 16 SYNCHRONOUS DRAM, 4.5 ns, 54 Pin Plastic SMT |
| W986416DH-55 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SDRAM|4X1MX16|CMOS|TSOP|54PIN|PLASTIC |
| W986416DH-6 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SDRAM|4X1MX16|CMOS|TSOP|54PIN|PLASTIC |
| W986416DH-7 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SDRAM|4X1MX16|CMOS|TSOP|54PIN|PLASTIC |
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