74HC2G66DC-Q100125

Overview

The 74HC2G66DC-Q100 is a dual single-pole single-throw analog switch manufactured by Nexperia, qualified to AEC-Q100 Grade 1 standards for automotive applications. It operates within a supply voltage range of 2.0 V to 10.0 V and supports ambient temperatures from -40 °C to +125 °C. The device features very low ON resistance, typically 41 Ω at 4.5 V, 30 Ω at 6.0 V, and 21 Ω at 9.0 V. Static characteristics include an input leakage current of ±0.2 μA maximum at 9.0 V and a supply current of 40 μA maximum at 9.0 V. Dynamic performance includes a propagation delay of 12 ns maximum at 9.0 V and enable time of 20 ns maximum at 9.0 V. It is housed in an 8-lead VSSOP package (SOT765-1).

Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 standards.
• Wide supply voltage operation ranging from 2.0 V to 10.0 V.
• High noise immunity with latch-up performance exceeding 100 mA per JESD 78 Class II Level B.
• Robust ESD protection exceeding 2000 V via Human Body Model and 1000 V via Charged Device Model.

Applications

• Automotive signal switching circuits requiring high reliability.
• Mixed voltage environments utilizing inputs compatible with 3.3 V or 5 V logic levels.
• Portable equipment benefiting from CMOS low power dissipation characteristics.

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact package variant and temperature grade. Ensure that the procurement channel provides traceability to the original manufacturer or authorized distributor. Confirm compliance with relevant environmental directives such as RoHS and REACH requirements prior to finalizing orders.

Selection Notes

Select this component when a wide supply voltage range up to 10.0 V is required for analog switching applications. Consider the VSSOP8 package dimensions for space-constrained PCB layouts. Evaluate the ON resistance specifications relative to the intended load current and supply voltage to ensure signal integrity. Verify that the operating temperature range meets the environmental conditions of the target application.

Part Context

This part belongs to the 74HC2G66-Q100 family of dual SPST analog switches. It shares functional similarities with other members like the 74LVC2G66-Q100 but differs in supply voltage tolerance and technology node. The DC suffix specifically denotes the VSSOP8 plastic very thin shrink small outline package, distinguishing it from TSSOP8 variants.

Replacement Considerations

Direct replacements include the 74HCT2G66DC-Q100 for HC-compatible logic levels. Other family members such as the 74HC2G66DP-Q100 offer identical functionality in a different package format. Cross-reference pinouts and electrical characteristics carefully before substitution.