74S139 Description
DM74S138 * DM74S139 Decoder/Demultiplexer August 1986 Revised April 2000 DM74S138 * DM74S139 Decoder/Demultiplexer General Descripti.
These Schottky-clamped circuits are designed to be used in high-performance memory-decoding or data-routing applications, requiring very short propaga.
74S139 Features
* s Designed specifically for high speed: Memory decoders Data transmission systems s DM74S138 3-to-8-line decoders incorporates 3 enable inputs to simplify cascading and/or data reception s DM74S139 contains two fully independent 2-to-4-line decoders/demultiplexers s Schottky clamped for high perform
74S139 Applications
* requiring very short propagation delay times. In high-performance memory systems these decoders can be used to minimize the effects of system decoding. When used with high-speed memories, the delay times of these decoders are usually less than the typical access time of the memory. This means that
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