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Partname:MSM514223B-30RS
Description:262,263-word x 4-bit field memory
Manufacturer:Oki Semiconductor
Package:DIP
Pins:18
Oper. temp.:0 to 70
Datasheet:PDF (139K).
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The OKI MSM514223B is a high performance 1-Mbit, 256K 4-bit, Field Memory. It is designed for high-speed serial access applications such as HDTVs, conventional NTSC TVs, VTRs, digital movies and Multi-media systems. It is a FRAM for wide or low end use as general commodity TVs and VTRs, exclusively. The MSM514223B is not designed for the other use or high end use in medical systems, professional graphics systems which require long term picture, and data storage systems and others. The 1-Mbit capacity fits one field of a conventional NTSC TV screen and cascaded two MSM514223Bs make one frame of the screen: more than two MSM514223Bs can be cascaded directly without any delay devices among the MSM514223Bs. (Cascading of MSM514223B provides larger storage depth or a longer delay). Each of the 4-bit planes has separate serial write and read ports that employ independent control clocks to support asynchronous read and write operations. Different clock rates are also supported that allow alternate data rates between write and read data streams. The MSM514223B provides high speed FIFO, First-In First-Out, operation without external refreshing: it refreshes its DRAM storage cells automatically, so that it appears fully static to the users.

Click here to download MSM514223B-30RS Datasheet
Click here to download MSM514223B-30RS Datasheet
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