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参数资料
| 型号： | W987Y6CBG80 |
| 厂商： | WINBOND ELECTRONICS CORP |
| 元件分类： | DRAM |
| 英文描述： | 8M X 16 SYNCHRONOUS DRAM, 6 ns, PBGA54 |
| 封装： | 8 X 9 MM, 1.20 MM HEIGHT, FBGA-54 |
| 文件页数： | 5/46页 |
| 文件大小： | 1634K |
| 代理商： | W987Y6CBG80 |
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Preliminary W987Y6CB
Publication Release Date: May 21, 2002
- 13 -
Revision A1
Write with Auto Precharge command
( RAS ="H", CAS ="L", WE ="L", BS0, BS1 = Bank, A10="H", A0 to A8 = Column Address)
The Write with Auto Precharge command performs the Precharge operation automatically after
the Write operation. This command must not be interrupted by any other commands.
Read command
( RAS ="H", CAS ="L", WE ="H", BS0, BS1 = Bank, A10 ="L", A0 to A8 = Column Address)
The Read command performs a Read operation to the bank designated by BS. The length of read
data (Burst Length), Addressing Mode and CAS Latency (access time from CAS command in a
clock cycle) must be programmed in the Mode Register at power-up prior to the Read operation.
Read with Auto Precharge command
( RAS ="H", CAS ="L", WE ="H", BS0, BS1 = Bank, A10 ="H", A0 to A8 = Column Address)
The Read with Auto precharge command automatically performs the Precharge operation after
the Read operation. This command must not be interrupted by any other command.
Mode Register Set command
( RAS ="L", CAS ="L", WE ="L", BS0 ="L", BS1 ="L", A0 to A11 = Register Data)
The Mode Register Set command programs the values of Burst Length, Addressing Mode, CAS
latency and Write Mode in the Mode Register. The default values in the Mode Register after
power-up are undefined, therefore this command must be issued during the power-up sequence.
Also, this command can be issued while all banks are in the idle state. Refer to the table for
specific codes.
Extended Mode Register Set command
( RAS ="L", CAS ="L", WE ="L", BS0 ="L", BS1 ="H", A0 to A11 = Register data)
The Extended Mode Register Set command programs the values of Driver Strength, Temperature
Compensated Self Refresh and Partial Array Self Refresh. The default value of the extended
mode register is Full Driver Strength, 70 degrees C and All banks Refreshed
No-Operation command
( RAS ="H", CAS ="H", WE ="H")
The No-Operation command simply performs no operation (same command as Device Deselect).
Burst Read stop command
( RAS ="H", CAS ="H", WE ="L")
The Burst stop command is used to stop the burst operation. This command is only valid during a
Burst Read operation.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| W987Y6CBN | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DRAM |
| W987Z6CBN | 制造商:未知厂家 制造商全称:未知厂家 功能描述:DRAM |
| W988D2FB | 制造商:WINBOND 制造商全称:Winbond 功能描述:256Mb Mobile LPSDR |
| W988D2FBJX6E | 制造商:Winbond Electronics Corp 功能描述:IC LPSDR SDRAM 256MBIT 90VFBGA |
| W988D2FBJX6I | 制造商:WINBOND 制造商全称:Winbond 功能描述:256Mb Mobile LPSDR |
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