74LVC2G66DP/S400H

Analog Switches, Multiplexers, Demultiplexers Overview

The Nexperia 74LVC2G66DP/S400H is a dual single pole, single throw analog switch housed in an SOT505-2 TSSOP8 package. It operates on a supply voltage range of 1.65 V to 5.5 V with inputs tolerant up to 5.5 V. The device features Schmitt-trigger action for slow input transitions and provides very low ON resistance, typically 6.5 Ω at 3.3 V. It supports a switch current capability of 32 mA and includes high noise immunity with CMOS low power consumption. The component meets JESD78 Class I latch-up requirements and offers ESD protection exceeding 2000 V (HBM) and 1000 V (CDM).

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Dual SPST configuration with active HIGH enable inputs.
• Overvoltage tolerant inputs allowing operation in mixed 3.3 V and 5 V environments.
• Schmitt-trigger inputs provide tolerance for slower rise and fall times.
• High noise immunity with robust latch-up performance.

Analog Switches, Multiplexers, Demultiplexers Applications

• Signal routing in mixed-voltage digital systems.
• Level translation between 3.3 V and 5 V logic domains.
• Battery-powered portable equipment requiring low power consumption.

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature range specifications. Ensure that the requested variant matches the required lead frame material and marking code details defined in the product data sheet before finalizing procurement orders.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when a dual bilateral switch is required within a TSSOP8 footprint. Consider the maximum ON resistance limits under specific load currents and supply voltages to ensure signal integrity. Verify that the operating temperature range aligns with the system environment constraints.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the 74LVC family of low-power CMOS devices designed for high-speed switching applications. The 74LVC2G66 specifically addresses the need for compact, dual-channel analog switching solutions compatible with modern low-voltage logic standards while maintaining compatibility with higher voltage control signals.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

Direct replacements include other packages from the same family such as 74LVC2G66DC (VSSOP8), 74LVC2G66GT (XSON8), or 74LVC2G66GN (XSON8). Cross-family substitutes like the 74LVCV2G66 offer overvoltage tolerant outputs but require verification of pinout and electrical parameter compatibility.

Analog Switches, Multiplexers, Demultiplexers FAQ

How does the device handle slow input signal transitions?

The 74LVC2G66 incorporates Schmitt-trigger action at all inputs, which makes the circuit tolerant of slower input rise and fall times compared to standard logic gates.

What is the maximum voltage allowed on the input pins?

The inputs are overvoltage tolerant up to 5.5 V, regardless of the supply voltage (VCC), allowing direct interfacing with 5 V logic devices even when VCC is lower.

Does the device support bidirectional signal flow?

Yes, each switch has two independent input/output terminals (nY and nZ), allowing the signal to flow in either direction when the enable input is HIGH.