74HCT2G66DC-Q100H

Analog Switches, Multiplexers, Demultiplexers Overview

The Nexperia 74HCT2G66DC-Q100H is a dual single-pole single-throw analog switch qualified to AEC-Q100 Grade 1 standards. It operates on a single supply voltage ranging from 4.5 V to 5.5 V. The device features two independent switches, each with an active HIGH enable input and bidirectional data terminals. At VCC = 4.5 V, the typical ON resistance is 41 Ω with a maximum of 118 Ω at -40 °C to +85 °C. Propagation delay is typically 2 ns at 4.5 V, while enable time is typically 13 ns. The component supports ambient temperatures from -40 °C to +125 °C and utilizes a VSSOP8 (SOT765-1) package.

Analog Switches, Multiplexers, Demultiplexers Feature Summary

• Automotive-grade qualification compliant with AEC-Q100 Grade 1 for robust reliability in vehicle environments.
• High noise immunity and CMOS low power dissipation characteristics suitable for efficient signal routing.
• Input clamp diodes allow interfacing with voltages exceeding VCC when current limiting resistors are used.

Analog Switches, Multiplexers, Demultiplexers Applications

• Automotive electronic systems requiring qualified analog switching components.
• Signal path selection in digital logic circuits operating at standard 5 V levels.
• Data bus isolation and multiplexing applications within automotive control units.

Analog Switches, Multiplexers, Demultiplexers Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to ensure correct package type and temperature range. Confirm that the procurement channel provides valid traceability for AEC-Q100 qualified parts. Check for any recent product change notices or obsolescence announcements directly from Nexperia before finalizing orders.

Analog Switches, Multiplexers, Demultiplexers Selection Notes

Select this component when HCT logic level compatibility is required for 5 V systems. Ensure the application voltage remains within the 4.5 V to 5.5 V recommended operating range. Consider the VSSOP8 package dimensions if board space is constrained. Verify that the required ON resistance and leakage current specifications meet the circuit design requirements under the expected operating temperature conditions.

Analog Switches, Multiplexers, Demultiplexers Part Context

This part belongs to the Nexperia 74HCT2G66-Q100 family of dual SPST analog switches. It shares functional similarities with the 74HC2G66-Q100 variant but differs in logic threshold compatibility, specifically optimized for High-speed CMOS (HCT) inputs. The 'DC' suffix denotes the VSSOP8 package, while 'Q100H' indicates automotive qualification and halogen-free status.

Analog Switches, Multiplexers, Demultiplexers Replacement Considerations

The 74HC2G66DC-Q100H is a pin-compatible alternative within the same family, though it requires a wider supply voltage range (2.0 V to 10.0 V). Other generic 74HCT2G66 variants without automotive qualification may serve as substitutes if AEC-Q100 compliance is not mandatory for the specific application.