74HC4051DRG

The 74HC4051 is an 8-channel analog multiplexer/demultiplexer featuring 3 address select inputs (A0–A2), an active-low enable input (E(overline)), 8 independent I/O channels (Y0–Y7), and a common I/O terminal (Z). The device contains 8 bidirectional analog switches. One end of each switch is connected to an independent I/O channel (Y0–Y7), while the other end is connected to the common I/O terminal (Z). When E(overline) is LOW, the switch selected by A0–A2 is in a low-impedance ON state. When E(overline) is HIGH, the A0–A2 settings are ignored and all switches are in a high-impedance OFF state. The enable input (E(overline)) must be used to toggle the switch states. VDD and VSS are the supply voltages for the digital control inputs (A0–A2 and E(overline)). The (VDD − VSS) range is 3–9V. The analog I/O channels (Y0–Y7 and Z) can swing between a maximum of VDD and a minimum of VEE. VDD − VEE shall not exceed 9V. For use as a digital multiplexer, VEE and VSS are connected together (typically to ground). The 74HC4051 is primarily used in analog multiplexing, digital multiplexing, and signal gating applications. Package options: DIP-16 / SOP-16 / TSSOP-16 / SSOP-16

Applications

• Analog multiplexer
• Digital multiplexer
• Signal gating