Quad SPST Analog Switch 744066

The Quad SPST Analog Switch 744066 is a 74-series CMOS version of the 4066 quad bilateral switch. It contains four independent single-pole, single-throw switches, each turned on or off by its own control input, and each passes analog or digital signals in both directions while on. It shares the CD4066 pinout and is used to route audio, sensor and logic signals under microcontroller control.

Quad SPST Analog Switch 744066 Specifications

• Function: 4 × SPST bilateral analog switches
• Control: one control input per switch, high = on
• Signal direction: bidirectional, input and output can be swapped
• Signal range: between ground and the supply voltage
• Pinout: same as the CD4066
• Package: 14-pin

Quad SPST Analog Switch 744066 Applications

• Audio signal routing and muting
• Analog multiplexing for ADC inputs on Arduino or ESP32
• Switching sensor channels or gain resistors
• Digital signal gating and sample-and-hold circuits

What's in the Box

• 1 × 744066 quad analog switch IC

Tip: Keep every signal voltage between GND and VCC; signals outside the supply rails are not switched correctly and can damage the chip. Tie unused control inputs to ground so those switches stay off.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.