74AHCT2G32DC-Q100H

Overview

The Nexperia 74AHCT2G32DC-Q100H is a dual 2-input OR gate in the 74AHCT series, housed in an 8-lead VSSOP (SOT765-1) package. It operates within a supply voltage range of 4.5 V to 5.5 V and features TTL input levels with overvoltage tolerant inputs up to 5.5 V. Qualified to AEC-Q100 Grade 1 standards, it supports automotive applications across temperature ranges of -40 °C to +85 °C and -40 °C to +125 °C. The device offers CMOS low power dissipation, symmetrical output impedance, high noise immunity, and balanced propagation delays.

Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 standards for reliable operation in vehicle environments.
• Overvoltage tolerant inputs allow safe interfacing in mixed voltage systems without exceeding ratings.
• TTL input switching levels ensure compatibility with standard logic families while maintaining CMOS performance characteristics.

Applications

• Automotive electronic circuits requiring qualified logic components
• Mixed voltage signal translation between TTL and CMOS domains
• General purpose digital logic processing in compact surface-mount designs

Procurement Notes

Verify that the specific ordering suffix matches the required package variant and temperature grade. Confirm AEC-Q100 Grade 1 compliance requirements align with target automotive specifications. Ensure design reviews account for the specified operating voltage window and thermal derating curves provided in the datasheet limiting values section.

Selection Notes

Select this component when TTL-compatible inputs are necessary alongside automotive reliability standards. The VSSOP8 package provides space efficiency for dense PCB layouts. Consider the overvoltage tolerance feature if interfacing directly with 5.5 V signals from other system blocks without additional level shifting circuitry.

Part Context

This part belongs to Nexperia's 74AHC_AHCT_Q100 family of automotive-grade logic ICs. The 'AHCT' designation indicates TTL-compatible inputs with high-speed CMOS technology. The 'DC' suffix identifies the VSSOP8 plastic very thin shrink small outline package. The 'Q100H' suffix denotes AEC-Q100 qualification and halogen-free manufacturing status.

Replacement Considerations

Direct functional substitutes include the 74AHC2G32DC-Q100H for CMOS input levels or the 74AHCT2G32DP-Q100H for TSSOP8 packaging. Verify pinout compatibility and electrical parameters before substitution.

FAQ

What is the difference between the 74AHCT2G32DC-Q100H and 74AHC2G32DC-Q100H?

The primary difference is the input logic level. The AHCT version uses TTL input levels, while the AHC version uses CMOS input levels. Both share the same package, automotive qualification, and output characteristics.

Can this device be used as a voltage translator?

Yes, the overvoltage tolerant inputs allow the device to interface with signals up to 5.5 V, making it suitable for translating signals in mixed voltage environments.