(PDF) IN74HCT157A Datasheet - Quad 2-1 Data Selector/Multiplexer

Número de pieza	IN74HCT157A
Descripción	Quad 2-1 Data Selector/Multiplexer
Fabricantes	IK Semiconductor
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No Preview Available ! TECHNICAL DATA Quad 2-Input Data Selectors/Multiplexer High-Performance Silicon-Gate CMOS IN74HCT157A The IN74HCT157A is identical in pinout to the LS/ALS157. This device may be used as a level converter for interfacing TTL or NMOS outputs to High Speed CMOS inputs. This device routes 2 nibbles (A or B) to a single port (Y) as determined by the Select input. The data is presented at the outputs in noninvertered form. A high level on the Output Enable input sets all four Y outputs to a low level. • TTL/NMOS Compatible Input Levels • Outputs Directly Interface to CMOS, NMOS, and TTL • Operating Voltage Range: 4.5 to 5.5 V • Low Input Current: 1.0 µA ORDERING INFORMATION IN74HCT157AN Plastic IN74HCT157AD SOIC TA = -55° to 125° C for all packages LOGIC DIAGRAM PIN ASSIGNMENT www.datasheet4uP.PIcINNo816=m=GVNCDC FUNCTION TABLE Inputs Outputs Output Enable Select Y0-Y3 H XL L L A0-A3 L H B0-B3 X=don’t care A0-A3,B0-B3=the levels of the respective Data-Word Inputs 1 1 page IN74HCT157A EXPANDED LOGIC DIAGRAM 5 5 Page

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PDF IN74HCT157A Data sheet ( Hoja de datos )