HomedatasheetSN74HC257NSR

SN74HC257NSR Datasheet

Encoders, Decoders, Multiplexers & Demultiplexers
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Description

These SN74HC257NSR 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. SN74HC257NSR 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• SN74HC257NSR . . . Typical tpd = 9 ns• SN74HC257NSR . . . Typical tpd = 12 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":"150 ns at 2 V, 30 ns at 4.5 V, 26 ns at 6 V "},{"Name":"Supply Voltage - Max","Value":"6 V "},{"Name":"Supply Voltage - Min","Value":"2 V "},{"Name":"Maximum Operating Temperature ","Value":"+ 85 C "},{"Name":"Mounting Style ","Value":"SMD/SMT "},{"Name":"Packaging","Value":"Reel "}]

Manufacturer information

SIEMENS [SIEMENS SEMICONDUCTOR GROUP]
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