The CD74HC157 are quad 2-input multiplexers which select four bits of data from two sources under the control of a common Select input (S). The Enable input (E\) is active Low. When (E\) is High, all of the outputs (1Y\-4Y\) are forced Low, regardless of all other input conditions. Moving data from two groups of registers to four common output busses is a common use of these devices. The state of the Select input determines the particular register from which the data comes. They can also be used as function generators.Features:Common Select InputsSeparate Enable InputsBuffered inputs and OutputsWide Operating Temperature Range . . . -55?C to 125?CBalanced Propagation Delay and Transition TimesSignificant Power Reduction Compared to LSTTL Logic ICs2V to 6V OperationHigh Noise Immunity: NIL = 30%, NIH = 30%of VCC at VCC = 5VDatasheet Available: Texas Instruments CD74HC157SOIC 16 package. Manufactured by Texas Instruments.A20279S
