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SN54ALS259,SN74ALS259,pdf(8-Bi

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  • 标      签: LATCHES

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These 8-bit addressable latches are designed for general-purpose storage applicaTIons in digital systems. Specific uses include working registers, serial-holding registers, and acTIve-high decoders or demulTIplexers. They are mulTIfunctional devices capable of storing single-line data in eight addressable latches and being a 1-of-8 decoder or demultiplexer with active-high outputs. Four distinct modes of operation are selectable by controlling the clear () and enable (G) inputs as shown in the function table. In the addressable-latch mode, data at the data-in terminal is written into the addressed latch. The addressed latch follows the data input with all unaddressed latches remaining in their previous states.
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