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    | Partname: | CD74HCT257MT |  
    | Description: | High-Speed CMOS Logic Quad 2-Input Multiplexer with Three-State Non-Inverting Outputs |     
    | Manufacturer: | Texas Instruments |  
    | Datasheet: | PDF (276K). Click here to download *) |  
    The 'HC257 and 'HCT257 are quad 2-input multiplexers which select four bits of data from two sources under the control of a common Select Input (S). The Output Enable input (OE) is active LOW. When OE is HIGH, all of the outputs (1Y-4Y) are in the high impedance state regardless of  |  
    
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    Click here to download CD74HCT257MT Datasheet*) | 
  
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