Download the DM74LS139 datasheet PDF.
This datasheet also covers the DM74LS138 variant, as both devices belong to the same decoder/demultiplexer family and are provided as variant models within a single manufacturer datasheet.
General Description
These Schottky-clamped circuits are designed to be used in high-performance memory-decoding or data-routing applications, requiring very short propagation delay times.
In high-performance memory systems these decoders can be used to minimize the effects of system decoding.
Note: The manufacturer provides a single datasheet file (DM74LS138_FairchildSemiconductor.pdf) that lists specifications for multiple related part numbers.
Full PDF Text Transcription for DM74LS139 (Reference)
Note: Below is a high-fidelity text extraction (approx. 800 characters) for
DM74LS139. For precise diagrams, and layout, please refer to the original PDF.
DM74LS138 • DM74LS139 Decoder/Demultiplexer August 1986 Revised March 2000 DM74LS138 • DM74LS139 Decoder/Demultiplexer General Description These Schottky-clamped circuits...
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oder/Demultiplexer General Description These Schottky-clamped circuits are designed to be used in high-performance memory-decoding or data-routing 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 the effective system delay introduced by the decoder is negligible. The DM74LS138 decodes one-of-eight lines, based upon the conditions at the three binary select inputs
DM74LS139 Datasheet
