Hct157 Quad 2 Channel Multiplexer Hct158 Quad 2 Channel Multiplexer (inv)

The M54HCT157 M74HCT157 and the M54HCT158 M74HCT158 are high speed CMOS QUAD 2-CHANNEL MULTI- PLEXERs fabricated with silicon Gate C2 MOS 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 HCT158 is an inverting multiplexer while the HCT157 is a non-inverting multiplexer. When the STROBE input is held High, selection of data is in- hibited and all the outputs become Low in the M74HCT157 and High in theM74HCT158. The SE- LECT decoding determines whether the A or B in- puts get routed to their corresponding Y outputs. All inputs are equipped with protection circuits against static discharge and transient excess voltage. M54/74HCT devices are designed to directly inter- face HSC2 MOS systemswith TTL andNMOS com- ponents. They are also plug in replacements for LSTTL devices giving a reduction of power con- sumption. By STMicroelectronics
M54HCT157 's PackagesM54HCT157 's pdf datasheet

M54HCT157 Pinout, Pinouts
M54HCT157 pinout,Pin out
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