SN74LVCZ240APWR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVCZ240A is an octal buffer with Schmitt-trigger inputs and 3-state outputs. It operates from 2.7V to 3.6V, accepting input voltages up to 5.5V. The device features a maximum propagation delay of 6.5ns at 3.3V. It supports mixed-mode signal operation, allowing 5V I/O voltage with a 3.3V VCC supply. The part includes Ioff and power-up 3-state support for hot insertion.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Schmitt-trigger inputs provide noise filtering and stable switching thresholds.
• Outputs enter a high-impedance state during power-up or when disabled, supporting hot insertion.
• Inputs tolerate 5.5V signals while the device operates on a lower 3.3V supply.
• Balanced CMOS outputs drive both high and low states with similar current capabilities.

Buffers, Drivers, Receivers, Transceivers Applications

• Drive indicator LEDs
• Level-shifting using open-drain outputs

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package variant (TSSOP, SOIC, or SOP) matches the design footprint. Confirm RoHS compliance status through official documentation. Ensure the ordering suffix corresponds to the required reel or tube quantity. Validate that the component revision aligns with the latest datasheet specifications.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for applications requiring 5V tolerant inputs with a 3.3V core supply. The Schmitt-trigger inputs are suitable for noisy environments. Consider the thermal characteristics if driving heavy loads. Verify that the output current requirements do not exceed the absolute maximum ratings.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the LVCZ family, designed for low-voltage applications with mixed-signal compatibility. It provides buffering for digital signals across various logic families. The octal configuration allows managing multiple lines with two separate enable controls.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVCZ240APW

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle partial power-down?

The device includes circuitry to disable all outputs when the supply pin is held at 0V, preventing current flow regardless of input voltages.

What is the purpose of the pull-up resistor on OE pins?

Tying OE pins to VCC through a pull-up resistor confirms the high-impedance state during power-up or power-down to prevent bus contention.