Catalog > Semiconductors > Integrated Circuits 74F251 IC 8-Input Multiplexer with 3-STATE Outputs 16PIN DIP Part No: 74F251 3.61 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 Supply voltage : 4.5V - 5.5V Operating Ambient Temperature Range : 70°C Output Current — High : -30mA Output Current — Low : 24mA Input HIGH Voltage : 2.0V Input LOW Voltage : 0.8V Input Clamp Diode Voltage : -1.2V Output HIGH Voltage : 2.7V Output LOW Voltage : 0.5V Power Supply Current : 24mA