Update: 30 September, 2023
M54HC157/158 M74HC157/158 are high speed CMOS QUAD 2-CHANNEL MULTI- PLEXER’s fabricated with silicon gate C2MOS tech- nology. They achieve the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. These devices consist of four 2-input digital multi- plexers with common select and strobe inputs. The HC158 is an inverting multiplexer while the HC157 is a non-inverting multiplexer. When the STROBE input is held High, selection of data is inhibited and all the outputs become Low in the M74HC157 and High in the M74HC158. The SELECT decoding determines whether the A or B inputs get routed to their corresponding Y outputs. All inputs are equipped with protection circuits against static dis- charge and transient.
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MD5 Checksum: F22FB4438D2808D3C01573A2AE724ABC
Publication date: 07 June, 2012
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PDF Link: SGS-THOMSON M54HC157/158M74HC157/158 handbook PDF