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參數資料

48SD6404

All data sheets are subject to change without notice

2005 Maxwell Technologies

256Mb (16-Meg X 4-Bit X 4-Banks) SDRAM

01.11.05 Rev 2

DQM Control

The DQM mask the upper and lower bytes of the DQ data respectively. The timing of DQM is different during

reading and writing.

Reading: When data is read, the output buffer can be controlled by DQM. By setting DQM to Low, the output

buffer becomes Low-Z, enabling data output. By setting DQM to High, the output buffer becomes High-Z and

the corresponding data is not output. However, internal reading operations continue. The latency of DQM

during reading is 2 clocks.

Writing: Input data can be masked by DQM. By setting DQM to Low, data can be written. In addition, when

DQM is set to High, the corresponding data is not written, and previous data is held. The latency of DQM

during writing is 0 clock.

Reading

Writing

相關PDF資料	PDF描述
48SD6404RPFI	256 Mb SDRAM 16-Meg X 4-Bit X 4-Banks
48SD6404RPFK	256 Mb SDRAM 16-Meg X 4-Bit X 4-Banks
48SD6404	CAP 2.2UF 50V CERAMIC MONO 20%
48TQFP	48 PIN TQFP/TQN PACKAGE OUTLINE
4900	Dual Winding Surface Mount Inductors

相關代理商/技術參數	參數描述
48SD6404RPFI	制造商:MAXWELL 制造商全稱:Maxwell Technologies 功能描述:256 Mb SDRAM 16-Meg X 4-Bit X 4-Banks
48SD6404RPFK	制造商:MAXWELL 制造商全稱:Maxwell Technologies 功能描述:256 Mb SDRAM 16-Meg X 4-Bit X 4-Banks
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

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