- 您現(xiàn)在的位置：買(mǎi)賣IC網(wǎng) > PDF目錄30701 > 48SD6404RPFK (MAXWELL TECHNOLOGIES) 256 Mb SDRAM 16-Meg X 4-Bit X 4-Banks PDF資料下載
參數(shù)資料
| 型號(hào)： | 48SD6404RPFK |
| 廠商： | MAXWELL TECHNOLOGIES |
| 元件分類： | DRAM |
| 英文描述： | 256 Mb SDRAM 16-Meg X 4-Bit X 4-Banks |
| 中文描述： | 64M X 4 SYNCHRONOUS DRAM, 6 ns, DFP72 |
| 封裝： | DFP-72 |
| 文件頁(yè)數(shù)： | 42/42頁(yè) |
| 文件大?。?/td> | 596K |
| 代理商： | 48SD6404RPFK |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)當(dāng)前第42頁(yè)
48SD6404
M
em
o
ry
9
All data sheets are subject to change without notice
2005 Maxwell Technologies
All rights reserved.
256Mb (16-Meg X 4-Bit X 4-Banks) SDRAM
01.11.05 Rev 2
Column address strobe and write command (WRIT): This command starts a write operation. When the
burst write mode is selected, the column address (AY0 to AY9, A11) and the bank select address (BA0/BA1)
become the burst write start address. When the single write mode is selected, data is only written to the
location specified by the column address (AY0 to AY9, A11) and bank select address(BA0/BA1).
Write with auto-precharge (WRIT A): This command automatically performs a precharge operation after a
burst write with a length of 1, 2, 4, or 8, or after a single write operation.
Row address strobe and bank activate ( ACTV): This command activates the bank that is selected by
BA0/BA1 (BS) and determines the row address (AX0 to AX12). When BA0 and BA1 are Low, bank 0 is
activated. When BA0 is Low, and BA1 is High, bank 1 is activated. When BA0 is High and BA1 is Low, bank
2 is activated. When BA0 and BA1 are High, bank 3 is activated.
Precharge select bank (PRE): This command starts precharge operation for the bank selected by BA0/
BA1. If BA0 and BA1 are Low, bank 0 is selected. If BA0 is Low and BA1 is High, bank 1 is selected. If BA0
is High and BA1 is Low, bank 2 is selected. If BA0 and BA1 are High, bank 3 is selected.
Precharge all banks (PALL): This command starts a precharge operation for all banks.
Refresh (REF/SELF): This command starts the refresh operation. There are two types of refresh
operations; one is auto-refresh, and the other is self-refresh. For details, refer to the CKE truth table section.
Mode register set (MRS): The SDRAM has a mode register that defines how it operates. The mode register
is specified by the address pins (A0 to A12, BA0 andBA1) at the mode register set cycle. For details, refer to
the mode register configuration. After power on, the contents of the mode register are undefined, execute
the mode register set command to set up the mode register.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 48SD6404 | CAP 2.2UF 50V CERAMIC MONO 20% |
| 48TQFP | 48 PIN TQFP/TQN PACKAGE OUTLINE |
| 4900 | Dual Winding Surface Mount Inductors |
| 49502-0200 | 1.25 W/B Conn. Housing(New) |
| 49502-0500 | 1.25 W/B Conn. Housing(New) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 48SFK0001 | 制造商:MADISON CABLE / TYC 功能描述: |
| 48SFKLF001 | 制造商:MADISON CABLE / TYC 功能描述: |
| 48SING-N5-25WH | 制造商:Edwards Signaling & Security Systems 功能描述:STDY_GRN_120AC |
| 48SINR-N5-25WH | 制造商:GE Security / Edwards Signaling & Security Systems 功能描述:SIGNAL, STEADY-ON INCANDESCENT, RED |
| 48SL-5M-80-EN-LF | 制造商:Birtcher Products 功能描述: |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。