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SN54ALS139

Texas Instruments
Part Number SN54ALS139
Manufacturer Texas Instruments
Description DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
Published Dec 10, 2020
Detailed Description SN54ALS139, SN74ALS139 DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS SDAS204A – APRIL 1982 – REVISED DECEMBER 1994 • D...
Datasheet PDF File SN54ALS139 PDF File

SN54ALS139
SN54ALS139

Overview
SN54ALS139, SN74ALS139 DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS SDAS204A – APRIL 1982 – REVISED DECEMBER 1994 • Designed Specifically for High-Speed Memory Decoders and Data Transmission Systems • Incorporate Two Enable Inputs to Simplify Cascading and /or Data Reception • Package Options Include Plastic Small-Outline (D) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs description The ′ALS139 are dual 2-line to 4-line decoders/demultiplexers designed for use in high-performance memory-decoding or datarouting applications requiring very short propagation delay times.
In high-performance memory systems, these devices can minimize the effects of system decoding.
When employed with high-speed memories utilizing a fast-enable circuit, the delay times of these decoders and the enable time of the memory are usually less than the typical access time of the memory.
Therefore, the effective system delay introduced by the Schottky-clamped system ...


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