SN74LVCZ240APWT

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVCZ240A is an octal buffer with Schmitt-trigger inputs and 3-state outputs, operating from 2.7V to 3.6V. It features balanced CMOS outputs capable of driving high and low states while supporting hot insertion via Ioff and power-up 3-state functionality. The device accepts 5.5V input voltages, enabling mixed-mode signal operation with a 3.3V supply. Maximum propagation delay is 6.5ns at 3.3V, with typical output ground bounce of 2V.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Schmitt-trigger inputs for noise immunity
• Balanced CMOS 3-state outputs
• Ioff support for partial power down
• Power-up 3-state capability

Buffers, Drivers, Receivers, Transceivers Applications

• Drive indicator LEDs
• Level-shifting using open-drain outputs
• Signal buffering over long traces

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package variant (TSSOP-20, SOIC-20, or SOP-20) matches the design footprint. Confirm RoHS compliance status through official documentation. Ensure the ordering suffix aligns with the required reel or tube packaging format. Cross-reference the manufacturer part number against the latest datasheet revision to validate electrical characteristics.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when 5.5V tolerant inputs are required alongside a 3.3V logic supply. The balanced drive strength supports fast edges into light loads, requiring careful routing to prevent ringing. Unused inputs must be terminated to VCC or GND to prevent oscillations due to TTL-compatible CMOS input characteristics.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the LVCZ family, designed for mixed-mode signal environments. It integrates Schmitt-trigger inputs to handle slow transitions effectively. The octal configuration allows for parallel data bus buffering or general-purpose signal isolation within digital systems.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVCZ240APW

Buffers, Drivers, Receivers, Transceivers FAQ

How is the high-impedance state maintained during power-up?

Both OE pins must be tied to VCC through a pull-up resistor to ensure outputs remain in the high-impedance state until the supply voltage stabilizes.

What happens if the supply voltage drops to 0V?

The Ioff circuitry disables all outputs, preventing current flow regardless of input voltages, which protects downstream components during partial power-down scenarios.