HD74HC4051 Datasheet PDF - Hitachi -> Renesas Electronics

Description
This device connects together the outputs of 8 switches, thus achieving an 8 Channel Multiplexer. The binary code placed on the A, B, and C select lines determine which one of the eight switches in “on”, and connects one of the eight inputs to the common output.

FEATUREs
• High Speed Operation
• Wide Operating Voltage
• Low Quiescent Supply Current