Catalog > Semiconductors > Integrated Circuits 74LS257 IC Data Select Multiplex Quad N/I 3State Part No: 74LS257 4.72 ZAR inc for 1 Each (Quoting) Add to Cart Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Specifications Number of Input Lines: 2 Input Number of Output Lines: 1 Output Package/Case: PDIP-16 Number of Bits: 4 bit Propagation Delay Time: 21 ns Supply Voltage - Min: 4.75 V Supply Voltage - Max: 5.25 V Mounting Style: Through Hole Minimum Operating Temperature: 0 C Maximum Operating Temperature: + 70 C Logic Type: Data Selectors/Multiplexers Number of Circuits: 4 Circuit Pd - Power Dissipation: 200 mW Product Type: Encoders, Decoders, Multiplexers & Demultiplexers