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參數資料
| 型號： | NT5TU64M16DG-3C |
| 廠商： | NANYA TECHNOLOGY CORP |
| 元件分類： | DRAM |
| 英文描述： | 64M X 16 DDR DRAM, 0.45 ns, PBGA84 |
| 封裝： | GREEN, BGA-84 |
| 文件頁數： | 31/85頁 |
| 文件大?。?/td> | 2622K |
| 代理商： | NT5TU64M16DG-3C |
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NT5TU256M4GE / NT5TU128M8GE / NT5TU64M16GG
1Gb DDR2 SDRAM
37
REV 1.0
06 / 2010
Precharge Command
The Precharge Command is used to precharge or close a bank that has been activated. The Precharge
Command is triggered when CS, RAS and WE are low and CAS is high at the rising edge of the clock. The
Pre-charge Command can be used to precharge each bank independently or all banks simultaneously. Three
address bits A10, BA0, BA1, and BA2 are used to define which bank to precharge when the command is
issued.
Bank Selection for Precharge by Address Bit
A10
BA2
BA1
BA0
Precharge
Bank(s)
LOW
Bank 0 only
LOW
HIGH
Bank 1 only
LOW
HIGH
LOW
Bank 2 only
LOW
HIGH
Bank 3 only
LOW
HIGH
LOW
Bank 4 only
LOW
HIGH
LOW
HIGH
Bank 5 only
LOW
HIGH
LOW
Bank 6 only
LOW
HIGH
Bank 7 only
HIGH
Don't Care
all banks
Burst Read Operation Followed by a Precharge
Minimum Read to Precharge command spacing to the same bank = AL + BL/2 + max (RTP, 2) - 2 clocks.
For the earliest possible precharge, the Precharge command may be issued on the rising edge which is “Additive Latency
(AL) + BL/2
clocks” after a Read Command, as long as the minimum tRAS timing is satisfied.
The minimum Read to Precharge spacing has also to satisfy a minimum analog time from the rising clock edge that initiates
the last 4-bit prefetch of a Read to Precharge command. This time is call tRTP (Read to Precharge). For BL=4 this is the
time from the actual read (AL after the Read command) to Precharge command. For BL=8 this is the time from AL + 2
clocks after the Read to the Precharge command.
相關PDF資料 |
PDF描述 |
|---|---|
| NTA2425E | |
| NTA2425F | |
| NTA2410-10 | |
| NTD2410F | |
| NTA2425-10 | |
相關代理商/技術參數 |
參數描述 |
|---|---|
| NT5TU64M16GG-AC | 制造商:Nanya Technology Corporation 功能描述:DRAM |
| NT5TU64M16GG-ACI | 制造商:Nanya Technology Corporation 功能描述:DRAM |
| NT5TU64M16HG-AC | 制造商:Nanya Technology Corporation 功能描述:MEMORY IC |
| NT5TU64M16HG-BE | 制造商:Nanya Technology Corporation 功能描述:MEMORY IC |
| NT6 | 功能描述:烙鐵 Weller Chisel Tip For WMP Solder Penc RoHS:否 制造商:Weller 產品:Soldering Stations 類型:Digital, Iron, Stand, Cleaner 瓦特:50 W 最大溫度:+ 850 F 電纜類型:US Cord Included |
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