74LVC244ABQ-Q100X

Overview

The Nexperia 74LVC244ABQ-Q100X is an octal non-inverting buffer and line driver featuring three-state outputs, housed in a DHVQFN-20 (SOT764-1) package. It operates on a supply voltage range of 1.2 V to 3.6 V with inputs accepting voltages up to 5.5 V. The device supports high-speed operation with propagation delays ranging from 1.5 ns to 15.8 ns depending on the voltage. It is qualified to AEC-Q100 Grade 1 standards for automotive applications and functions reliably across temperatures from -40 °C to +125 °C.

Feature Summary

• Three-state outputs controlled by dedicated active-low enable inputs
• High noise immunity provided by Schmitt-trigger action at all inputs
• Direct interface capability with TTL levels and mixed 3.3 V/5 V environments
• Automotive qualification compliant with AEC-Q100 Grade 1 standards

Applications

• Automotive electronic systems requiring robust signal buffering
• Mixed-voltage logic translation between 3.3 V and 5 V domains
• High-speed data bus driving and line termination

Procurement Notes

Verify the specific suffix 'BQ' corresponds to the DHVQFN-20 package variant during procurement. Confirm that the 'Q100' designation aligns with required automotive reliability grades. Ensure the ordering part number matches the exact temperature range specifications needed for the target application environment.

Selection Notes

Select this component when an octal buffer with three-state control is required in a compact surface-mount form factor. The DHVQFN package offers thermal enhancement suitable for dense PCB layouts. Consider the 5.5 V input tolerance if interfacing directly with legacy 5 V logic without additional level shifting components.

Part Context

This device belongs to the Nexperia 74LVC/LVCH244A-Q100 family of octal buffers. The 'LVC' series denotes low-voltage CMOS technology optimized for performance at reduced supply voltages. The 'ABQ' suffix specifically identifies the DHVQFN package configuration within the broader product lineup.

Replacement Considerations

The 74LVCH244ABQ-Q100 serves as a functional alternative within the same family, distinguished primarily by the inclusion of bus hold circuitry on data inputs.