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The 74LS138 is a 3-to-8 line decoder/demultiplexer chip typically used in digital electronics circuits. The datasheet for the 74LS138 provides detailed technical information on the operational characteristics, electrical specifications, timing diagrams, pin configuration, and application notes for the chip. It contains information on the input and output voltage levels, current consumption, propagation delays, and output drive capabilities. Additionally, the datasheet includes functional diagrams, truth tables, and recommended operating conditions to ensure proper functionality of the 74LS138 in various digital logic applications. Engineers and designers refer to the datasheet to understand the capabilities and limitations of the 74LS138 chip and to effectively incorporate it into their circuit designs.

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