74VHC4066MTCX

Analog Switches, Multiplexers, Demultiplexers Overview

The Fairchild Semiconductor 74VHC4066MTCX is a quad bilateral analog switch utilizing advanced silicon-gate CMOS technology. It features four independent SPST switches with individual control inputs, enabling precise signal routing in bidirectional applications. The device supports analog signal voltages up to 12V peak while operating on a single supply voltage ranging from 2V to 5.5V. Key electrical parameters include a typical on-resistance of 30 Ohms and a maximum quiescent current of 80 µA. Switching performance is characterized by a typical enable time of 15 ns. The component is housed in a 14-TSSOP surface-mount package and operates within a temperature range of -40°C to +85°C.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Bidirectional switching capability allows any analog input to function as an output and vice versa.
• Integrated linearization circuitry reduces on-resistance variation for improved signal linearity.
• Individual control inputs provide independent disable functionality for each of the four switches.
• Built-in electrostatic protection diodes safeguard analog and digital inputs against damage.

Analog Switches, Multiplexers, Demultiplexers Applications

• Signal routing in multiplexed data acquisition systems
• Audio and video signal path switching
• Battery-powered portable devices requiring low standby current
• Industrial control systems managing multiple sensor inputs

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the manufacturer designation carefully, as Fairchild Semiconductor's logic division was acquired by onsemi. Confirm that the specific ordering code matches the intended VHC series specifications rather than standard HC variants. Ensure the TSSOP-14 package dimensions align with the target PCB footprint requirements before finalizing procurement orders.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when high-speed switching and low power consumption are required simultaneously. The VHC series offers faster propagation delays compared to standard HC logic while maintaining similar pinouts. Verify that the system's analog signal amplitude does not exceed the 12V peak limit to prevent device breakdown or distortion during operation.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the 74VHC family of high-speed CMOS logic devices. It serves as a functional equivalent to the industry-standard 74HC4066 but with optimized speed and power characteristics. The device is widely used in mixed-signal environments where digital control interfaces must manage analog signal paths efficiently without introducing significant resistance or leakage errors.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Publicly confirmed substitutes include the 74VHC4066MTC and 74VHC4066MX_NL from the same manufacturer family. Cross-manufacturer alternatives such as the SN74AHC4066PWR or MM74HC4066MTCX may be considered if pin compatibility and electrical parameters meet the design requirements.