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MM74HC157 Quad 2-Input Multiplexer September 1983 Revised February 1999 MM74HC157 Quad 2-Input Multiplexer General Description The 74HC logic family is functionally as well as pin-out compatible with the standard 74LS logic family. All inputs The MM74HC157 high speed Quad 2-to-1 Line data selec- are protected from damage due to static discharge by inter- tor/Multiplexers utilizes advanced silicon-gate CMOS tech- nal diode clamps to VCC and ground. nology. It possesses the high noise immunity and low power consumption of standard CMOS integrated circuits, as well as the ability to drive 10 LS-TTL loads. Features This device consists of four 2-input digital multiplexers with s Typical propagation delay: 14 ns data to any output common select and STROBE inputs. When the STROBE s Wide power supply range: 2