74HC4051D-Q100,118

Overview

The Nexperia 74HC4051D-Q100,118 is an automotive-grade single-pole octal-throw analog switch (SP8T) qualified to AEC-Q100 Grade 1. It functions as an 8:1 multiplexer or demultiplexer with three digital select inputs (S0-S2), eight independent I/Os (Yn), a common I/O (Z), and an active-low enable input (E). The device operates within a supply voltage range of 2.0 V to 10.0 V and supports bidirectional analog signals from -5 V to +5 V. Key electrical parameters include a maximum ON resistance of 180 Ω at VCC=4.5V/VEE=0V, propagation delay up to 90 ns, and OFF-state leakage current of ±0.4 μA. It features built-in ESD protection exceeding 2000 V (HBM) and operates across a temperature range of -40 °C to +125 °C in a 16-pin SO package.

Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 standards for reliable operation in vehicle environments.
• Wide analog input voltage capability supporting signal transmission between -5 V and +5 V.
• Integrated logic level translation enabling communication between 5 V digital logic and ±5 V analog signals.
• Built-in 'break before make' switching mechanism prevents signal shorting during channel transitions.

Applications

• Analog multiplexing and demultiplexing
• Digital multiplexing and demultiplexing
• Signal gating

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm the exact package type and tape-and-reel specifications. Ensure that the component meets the required AEC-Q100 Grade 1 qualification status for your target application. Cross-reference the datasheet revision date to confirm compatibility with your design requirements.

Selection Notes

Select this component when an 8-channel analog switch with automotive reliability is required. Verify that the supply voltage range (2.0 V to 10.0 V) aligns with your system power rails. Consider the maximum ON resistance and propagation delay specifications to ensure they meet the signal integrity and speed requirements of your circuit design.

Part Context

This part belongs to the 74HC4051-Q100 series, which includes variants in different packages such as TSSOP16 (PW) and DHVQFN16 (BQ). All variants share the same core functionality and electrical characteristics but differ in physical dimensions and thermal properties. The D package specifically refers to the SO16 plastic small outline package.

Replacement Considerations

Direct substitutes include other 74HC4051 variants from the same family, such as the 74HC4051PW-Q100 (TSSOP16) or 74HC4051BQ-Q100 (DHVQFN16). Ensure any replacement maintains the AEC-Q100 Grade 1 qualification if automotive compliance is mandatory.

FAQ

What is the function of the Enable (E) input?

The Enable input is active LOW. When E is HIGH, all switches are turned off, placing the device in a high-impedance state regardless of the select inputs.

How does the device handle voltages exceeding VCC?

The inputs include clamp diodes, which allow the use of current-limiting resistors to interface inputs to voltages in excess of VCC without damaging the device.

What is the typical ESD protection rating?

The device provides ESD protection exceeding 2000 V according to ANSI/ESDA/JEDEC JS-001 class 2 (HBM) and exceeds 1000 V according to ANSI/ESDA/JEDEC JS-002 class C3 (CDM).