• Wide analog-input-voltage range:
  0 V – 10 V
• Low ON resistance:
  • V_CC = 4.5 V: 25 Ω
  • V_CC = 9 V: 15 Ω
• Fast switching and propagation delay times
• Low OFF leakage current
• Wide operating temperature range:
  –55°C to 125°C
• HC types:
  • 2 V to 10 V operation
  • High noise immunity: N_IL = 30%, N_IH = 30% of V_CC at V_CC = 5 V and 10 V
• HCT types:
  • Direct LSTTL input logic compatibility, V_IL= 0.8 V (maximum), V_IH = 2 V (minimum)
  • CMOS input compatibility, I_l ≤ 1 µA at
    V_OL, V_OH

• Analog signal switching and multiplexing: signal gating, modulators, squelch controls, demodulators, choppers, commutating switches
• Digital signal switching and multiplexing: Analog-to-digital and digital-to-analog conversions
• Digital control of frequency, impedance, phase, and analog-signal gain
• Building automation

The ’HC4066 and CD74HCT4066 devices contain four independent digitally controlled analog switches that use silicon-gate CMOS technology to achieve operating speeds similar to LSTTL with the low power consumption of standard CMOS integrated circuits.

These switches feature the characteristic linear ON resistance of the metal-gate CD4066B device. Each switch is turned on by a high-level voltage on its control input.

Functional Block Diagram

Logic Diagram