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SL74HCT157N Datasheet(PDF) 1 Page - System Logic Semiconductor |
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SL74HCT157N Datasheet(HTML) 1 Page - System Logic Semiconductor |
1 / 5 page SL74HCT157 System Logic Semiconductor SLS Quad 2-Input Data Selectors/Multiplexer High-Performance Silicon-Gate CMOS The SL74HCT157 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 SL74HCT157N Plastic SL74HCT157D SOIC TA = -55 ° to 125° C for all packages FUNCTION TABLE Inputs Outputs Output Enable Select Y0-Y3 H X L L L A0-A3 L H B0-B3 X=don’t care A0-A3,B0-B3=the levels of the respective Data-Word Inputs LOGIC DIAGRAM PIN 16 =VCC PIN 8 = GND PIN ASSIGNMENT |
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