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| 型号： | W9816G6IH-5 |
| 厂商： | WINBOND ELECTRONICS CORP |
| 元件分类： | DRAM |
| 英文描述： | 1M X 16 SYNCHRONOUS DRAM, 4.5 ns, PDSO50 |
| 封装： | 0.400 INCH, ROHS COMPLIANT, TSOP2-50 |
| 文件页数： | 3/42页 |
| 文件大小： | 715K |
| 代理商： | W9816G6IH-5 |
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W9816G6IH
Publication Release Date: Mar. 22, 2010
- 11 -
Revision A02
7.17 Power Down Mode
The Power Down mode is initiated by holding CKE low. All of the receiver circuits except CKE are
gated off to reduce the power. The Power Down mode does not perform any refresh operations;
therefore the device can not remain in Power Down mode longer than the Refresh period (tREF) of the
device.
The Power Down mode is exited by bringing CKE high. When CKE goes high, a No Operation
Command is required on the next rising clock edge, depending on tCK. The input buffers need to be
enabled with CKE held high for a period equal to tCKS(min) + tCK(min).
7.18 No Operation Command
The No Operation Command should be used in cases when the SDRAM is in an 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.
7.19 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.
7.20 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.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| W9816G6IH-6 | 功能描述:IC SDRAM 16MBIT 50TSOPII RoHS:是 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:2,500 系列:- 格式 - 存储器:EEPROMs - 串行 存储器类型:EEPROM 存储容量:1K (128 x 8) 速度:100kHz 接口:UNI/O?（单线） 电源电压:1.8 V ~ 5.5 V 工作温度:-40°C ~ 85°C 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-MSOP 包装:带卷 (TR) |
| W9816G6IH-6I | 功能描述:IC SDRAM 16MBIT 50TSOPII RoHS:是 类别:集成电路 (IC) >> 存储器 系列:- 标准包装:2,500 系列:- 格式 - 存储器:EEPROMs - 串行 存储器类型:EEPROM 存储容量:1K (128 x 8) 速度:100kHz 接口:UNI/O?（单线） 电源电压:1.8 V ~ 5.5 V 工作温度:-40°C ~ 85°C 封装/外壳:8-TSSOP，8-MSOP（0.118"，3.00mm 宽） 供应商设备封装:8-MSOP 包装:带卷 (TR) |
| W9816G6IH-7 | 制造商:WINBOND 制造商全称:Winbond 功能描述:512K 】 2 BANKS 】 16 BITS SDRAM |
| W9816G6IH-7I | 制造商:WINBOND 制造商全称:Winbond 功能描述:512K 】 2 BANKS 】 16 BITS SDRAM |
| W982504AH-7 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:x4 SDRAM |
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