74LVC623AD-Q100J

Overview

The 74LVC623AD-Q100J is an octal bus transceiver with dual enable inputs, manufactured by Nexperia and distributed under the NXP USA Inc. brand. It operates within a supply voltage range of 1.65 V to 3.6 V and features three-state outputs. The device supports CMOS and LVTTL input levels, ensuring compatibility with various logic families. Packaged in SOIC-20 for surface mount installation, it offers a propagation delay of 19 ns and handles up to 8 channels. Designed for automotive applications, it meets AEC-Q100 Grade 1 standards, functioning reliably between -40 °C and +125 °C.

Feature Summary

• Automotive qualified to AEC-Q100 Grade 1 standards for high reliability
• Octal configuration with dual independent enable controls
• Wide operating temperature range suitable for harsh environments
• Compatible with CMOS and LVTTL logic input levels

Applications

• Engine control units
• Body control modules
• Transmission control units

Procurement Notes

Verify component authenticity through authorized distributors or official manufacturer channels. Confirm that the specific suffix matches the required package and qualification grade. Check current lifecycle status as end-of-life notifications may affect long-term availability. Ensure compliance with RoHS and REACH regulations for your region. Validate pinout and electrical specifications against the latest datasheet before integration.

Selection Notes

Select this component when designing systems requiring high-density data transfer with isolated control zones. The dual enable feature allows separate management of bidirectional data paths. Verify that the 1.65 V to 3.6 V supply range aligns with your system power architecture. Consider the SOIC-20 package dimensions for PCB layout constraints. Ensure thermal dissipation requirements are met given the 500 mW power handling capability.

Part Context

This part belongs to the 74LVC series of low-voltage CMOS logic devices. The Q100 suffix indicates automotive qualification, distinguishing it from standard commercial variants. It serves as a critical interface component for managing parallel data buses in complex electronic systems. The octal design reduces board space compared to using multiple single-channel transceivers.

Replacement Considerations

Check for direct cross-references from other manufacturers offering identical pinouts and electrical characteristics. Verify if alternative packages like TSSOP are available if footprint changes are permissible. Confirm that any substitute maintains the same AEC-Q100 Grade 1 certification level.