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參數(shù)資料
| 型號(hào)： | HYB 39S64160BT |
| 廠(chǎng)商： | SIEMENS AG |
| 英文描述： | 4M x 16 MBit Synchronous DRAM for High Speed Graphics Applications(64M位(4列 × 1M位 × 16)同步動(dòng)態(tài)RAM（用于高速圖形場(chǎng)合）) |
| 中文描述： | 4米× 16兆比特同步DRAM）的高速圖形應(yīng)用程序（6400位（4列× 1位× 16）同步動(dòng)態(tài)隨機(jī)存儲(chǔ)器（用于高速圖形場(chǎng)合） |
| 文件頁(yè)數(shù)： | 5/18頁(yè) |
| 文件大?。?/td> | 118K |
| 代理商： | HYB 39S64160BT |
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INFINEON Technologies
5
HYB39S6416A/BT-5.5/-6/-7
64MBit Synchronous DRAM
Operation Definition
All of SDRAM operations are defined by states of control signals CS, RAS, CAS, WE, and DQM at
the positive edge of the clock. The following list shows the most important operation commands.
Mode Register
For application flexibility, a CAS latency, a burst length, and a burst sequence can be
programmed in the SDRAM mode register. The mode set operation must be done before any
activate command after the initial power up. Any content of the mode register can be altered by re-
executing the mode set command. Both banks must be in precharged state and CKE must be high
at least one clock before the mode set operation. After the mode register is set, a Standby or NOP
command is required. Low signals of RAS, CAS, and WE at the positive edge of the clock activate
the mode set operation. Address input data at this timing defines parameters to be set as shown in
the following table.
Operation
CS
RAS
CAS
WE
(L/U)DQM
Standby, Ignore RAS, CAS, WE and Address
H
X
X
X
X
Row Address Strobe and Activating a Bank
L
L
H
H
X
Column Address Strobe and Read Command
L
H
L
H
X
Column Address Strobe and Write Command
L
H
L
L
X
Precharge Command
L
L
H
L
X
Burst Stop Command
L
H
H
L
X
Self Refresh Entry
L
L
L
H
X
Mode Register Set Command
L
L
L
L
X
Write Enable/Output Enable
X
X
X
X
L
Write Inhibit/Output Disable
X
X
X
X
H
No Operation (NOP)
L
H
H
H
X
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HYB39S64160BT-10 | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:x16 SDRAM |
| HYB39S64160BT-5.5 | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:x16 SDRAM |
| HYB39S64160BT-6 | 制造商:未知廠(chǎng)家 制造商全稱(chēng):未知廠(chǎng)家 功能描述:x16 SDRAM |
| HYB39S64160BT-7.5 | 制造商:INFINEON 制造商全稱(chēng):Infineon Technologies AG 功能描述:64-MBit Synchronous DRAM |
| HYB39S64160BT-8 | 制造商:INFINEON 制造商全稱(chēng):Infineon Technologies AG 功能描述:64-MBit Synchronous DRAM |
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