CD4051BM260

CD4051 is a single 8-channel analog multiplexer/demultiplexer featuring three address select inputs (A0–A2), one active-low enable input (E), eight independent I/O channels (Y0–Y7), and one common I/O terminal (Z). The device integrates eight bidirectional analog switches internally; one terminal of each switch connects to an individual I/O channel (Y0–Y7), while the other connects to the common I/O terminal (Z). When E is low, the switch selected by address lines A0–A2 is turned on in a low-resistance state; when E is high, address decoding is disabled and all switches are turned off in a high-impedance state — the enable input E must be used to change switch states. The digital control inputs (A0–A2 and E) are powered between VDD and VSS, with an allowable voltage difference (VDD − VSS) of 3–9V. The analog I/O terminals (Y0–Y7 and Z) may swing between a maximum of VDD and a minimum of VEE, with the voltage difference between VDD and VEE not exceeding 9V. When used as a digital multiplexer, VEE is typically connected to VSS and tied to ground.

Applications

• Analog multiplexer
• Digital multiplexer
• Signal gating