Multiplexer 4x2:1 PDIP-16 Specifications Series: 74F Function: Standard Type: Multiplexer Circuit: 4 x 2:1 Independent Circuits: 1 Current - Output High, Low: 1 mA, 20 mA Voltage Supply Source: Single Supply Voltage - Supply: 4.5 V to 5.5 V Operating Temperature: 0C to 70C Mounting Type: Through Hole Package: 16-DIP (0.300", 7.62mm) Base Number: 74F399