HomedatasheetSN74HC257D

SN74HC257D Datasheet

Encoders, Decoders, Multiplexers & Demultiplexers
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Description

These SN74HC257D devices are designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized systems. The 3-state outputs do not load the data lines when the output-enable (G) input is at a high logic level.To ensure the high-impedance state during power up or power down, G should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. SN74HC257D Features • Wide Operating Voltage Range of 2 V to 6 V• High-Current Inverting Outputs Drive Up To 15 LSTTL Loads• Low Power Consumption, 80-μA Max ICC• SN74HC257D . . . Typical tpd = 9 ns• ±6-mA Output Drive at 5 V• Low Input Current of 1 μA Max• Provides Bus Interface from Multiple Sources in High-Performance Systems
Features

Parameters

[{"Name":"Product ","Value":"Selectors / Multiplexers "},{"Name":"Logic Family ","Value":"HC"},{"Name":"Number of Bits ","Value":"4"},{"Name":"Number of Lines (Input / Output)","Value":"2 / 1 "},{"Name":"Propagation Delay Time ","Value":"12 ns "},{"Name":"Supply Voltage - Max","Value":"6 V"},{"Name":"Supply Voltage - Min","Value":"2 V "},{"Name":"Packaging","Value":"Tube"}]

Manufacturer information

FAIRCHILD SEMICONDUCTOR

Fairchild has a rich history as a pioneer in the semiconductor industry and that pioneering spirit endures today. In an era where diversity can dilute focus and hamper innovation, we specialize in the development and manufacturing of a complete portfolio of low- to high-power solutions for the mobile, industrial, cloud, automotive, lighting, and computing industries. Fairchild is one of the most reliable partners in the industry, offering the shortest time from concept to silicon, expert FAEs for customer support, and a flexible, multi-source supply chain. Our vision is clear – anticipate the power efficiencies demanded by tomorrow’s electronic products and deliver an amazing design experience

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