74LVCH244ADB-Q100J

Overview

The Nexperia 74LVCH244ADB-Q100J is an octal non-inverting buffer and line driver featuring three-state outputs, qualified to AEC-Q100 Grade 1 standards for automotive use. It operates within a supply voltage range of 1.2 V to 3.6 V and supports inputs up to 5.5 V. The device includes bus hold functionality on all data inputs to eliminate external pull-up requirements. It utilizes Schmitt-trigger action for noise tolerance and provides high-impedance states when VCC is zero.

Feature Summary

• Bus hold circuitry on all data inputs prevents floating states without external resistors
• High noise immunity through Schmitt-trigger action at all input pins
• Outputs assume high-impedance OFF-state when VCC equals zero volts
• Inputs tolerate voltages up to 5.5 V for mixed voltage interfacing

Applications

• Automotive electronic systems requiring AEC-Q100 Grade 1 qualification
• Mixed voltage environments translating between 3.3 V and 5.0 V logic levels
• Octal buffering and line driving in high-noise industrial applications

Procurement Notes

Verify the specific suffix 'ADB' corresponds to the SO20 package variant SOT163-1 during procurement. Confirm that the 'Q100J' designation aligns with the required automotive grade and temperature specifications. Ensure compatibility with the intended PCB footprint dimensions before finalizing orders.

Selection Notes

Select this component when automotive reliability and wide voltage tolerance are required. The LVCH series offers bus hold features absent in standard LVC variants. Consider the SO20 package constraints regarding body width and lead pitch. Verify power dissipation limits against ambient operating temperatures for thermal management.

Part Context

This part belongs to the Nexperia 74LVC/LVCH244A-Q100 family of octal buffers. It shares functional similarities with the 74LVC244AD-Q100J but adds bus hold capabilities. The device is designed for robust signal transmission in demanding electrical environments while maintaining low power consumption characteristics typical of CMOS technology.

Replacement Considerations

The 74LVC244AD-Q100J serves as a direct functional substitute if bus hold features are unnecessary. Other members of the 74LVCH244A-Q100 family may be considered based on package availability.