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參數(shù)資料
| 型號： | 72SD3232RPFE |
| 廠商： | MAXWELL TECHNOLOGIES |
| 元件分類： | DRAM |
| 英文描述： | 1 Gbit SDRAM 32-Meg X 32-Bit X 4-Banks |
| 中文描述： | 32M X 32 SYNCHRONOUS DRAM, 6 ns, DFP72 |
| 封裝： | STACK, DFP-72 |
| 文件頁數(shù)： | 36/41頁 |
| 文件大小： | 596K |
| 代理商： | 72SD3232RPFE |
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72SD3232
M
36
All data sheets are subject to change without notice
2005 Maxwell Technologies
All rights reserved.
1 Gbit(32-Meg X 32-Bit X 4-Banks) SDRAM
02.04.05 Rev 3
Reading
Writing
Refresh
Auto-Refresh:
All the banks must be precharged before executing an auto-refresh command. Since the
auto-refresh command updates the internal counter every time it is executed and determnes the banks and
the ROW addresses to be refreshed, external address specification is not required. The refresh cycle is
8192 cycles / 6.4 ms. (8192 cycles are requires to refresh all the ROW addresses.) The output buffer
becomes High-Z after auto-refresh start. In addition, since a precharge has been completed by an internal
operation after the auto-refresh, an additional precharge operation by the precharge command is not
required.
Self-refresh
1
:
After executing a self-refresh command, the self-refresh operation continues while CKE is
held Low During self-refresh operation, all ROW addresses are refreshed by the internal refresh timer. A
self-refresh is termnated by a self-refresh exit command. Before and after self-refresh mode, execute auto-
refresh to all refresh addresses in or within 6.4 ms period on the condition (1) and (2) below
1. Use self refresh at temperatures below 70
°
C only.
相關(guān)PDF資料 |
PDF描述 |
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| 72SD3232RPFH | 1 Gbit SDRAM 32-Meg X 32-Bit X 4-Banks |
| 72SD3232RPFI | 1 Gbit SDRAM 32-Meg X 32-Bit X 4-Banks |
| 72SD3232RPFK | 1 Gbit SDRAM 32-Meg X 32-Bit X 4-Banks |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 72SD3232RPFH | 制造商:MAXWELL 制造商全稱:Maxwell Technologies 功能描述:1 Gbit SDRAM 32-Meg X 32-Bit X 4-Banks |
| 72SD3232RPFI | 制造商:MAXWELL 制造商全稱:Maxwell Technologies 功能描述:1 Gbit SDRAM 32-Meg X 32-Bit X 4-Banks |
| 72SD3232RPFK | 制造商:MAXWELL 制造商全稱:Maxwell Technologies 功能描述:1 Gbit SDRAM 32-Meg X 32-Bit X 4-Banks |
| 7-2SDLSJ40 | 制造商:Cooper Bussmann 功能描述:CAPACITOR FUSEM, 7.2KV,40 - Bulk |
| 72T18105L10BB | 制造商:Integrated Device Technology Inc 功能描述:FIFO Mem Async/Sync Dual Depth/Width Uni-Dir 128K x 18/256K x 9 240-Pin BGA 制造商:Integrated Device Technology Inc 功能描述:FIFO ASYNC/SYNC DUAL DEPTH/WIDTH UNI-DIR 128KX18/256KX9 240B - Trays |
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