74LVC541ABQ,115

Overview

The 74LVC541ABQ,115 is an octal buffer and line driver featuring three-state outputs. It operates within a supply voltage range of 1.2 V to 3.6 V. The device includes IOFF circuitry that disables the outputs during partial power-down conditions to prevent damaging backflow currents. Inputs are tolerant to 5.5 V, allowing direct interfacing with 3.3 V or 5 V devices in mixed-voltage environments. Schmitt-trigger action at all inputs provides tolerance for slower rise and fall times.

Feature Summary

• Features two active LOW output enable inputs (OE1 and OE2) for controlling high-impedance OFF-states.
• Includes IOFF circuitry to disable outputs and prevent backflow current during partial power-down applications.
• Provides Schmitt-trigger action at all inputs to ensure tolerance for slower input signal transitions.
• Supports direct interface with TTL levels and accepts input voltages up to 5.5 V.

Applications

• Translating signals between mixed 3.3 V and 5 V logic environments
• Partial power-down mode operation using IOFF circuitry
• Driving bus lines with three-state control

Procurement Notes

Verify the specific suffix 'BQ' corresponds to the DHVQFN20 package (SOT764-1) as defined in the ordering information table. Confirm the temperature range specification matches the required operational environment, as this variant is specified from -40 °C to +125 °C. Ensure design compliance with the absolute maximum ratings regarding supply voltage and clamping currents.

Selection Notes

Select this component when an octal buffer with independent three-state control is required for low-voltage CMOS applications. The wide supply range supports operation down to 1.2 V. The 5 V tolerant inputs facilitate integration into systems mixing different logic families without additional level shifting components. Verify package compatibility with the DHVQFN20 footprint.

Part Context

This part belongs to the 74LVC541A family of octal buffers and line drivers manufactured by Nexperia. The 'BQ' designation specifically identifies the DHVQFN20 plastic dual in-line compatible thermal enhanced very thin quad flat package. Other variants in the series include SO20 and TSSOP20 packages.

Replacement Considerations

Check for other 74LVC541A variants with different package types such as 74LVC541AD (SO20) or 74LVC541APW (TSSOP20). Ensure any substitute maintains the same functional specifications, including the 1.2 V to 3.6 V supply range and 5 V tolerant inputs.