74LCX240MTC

Overview

The onsemi 74LCX240MTC is a low-voltage octal buffer and line driver featuring 5 V tolerant inputs and outputs. It operates within a supply voltage range of 1.65 V to 5.5 V, utilizing advanced CMOS technology for high-speed performance with low power dissipation. The device provides an inverting logic function with three-state outputs controlled by OE1 and OE2 pins. Maximum propagation delay is specified at 6.5 ns at 3.3 V and 10 ns at 5 V. It supports live insertion and withdrawal, offering ±24 mA output drive capability at 3.0 V.

Feature Summary

• Features 5 V tolerant inputs and outputs for interfacing between low-voltage and 5 V signal environments.
• Provides power-down high-impedance state to support live insertion and withdrawal operations.
• Implements proprietary noise and EMI reduction circuitry for improved signal integrity.
• Delivers strong output drive capabilities with ±24 mA sourcing and sinking current.

Applications

• Memory address drivers
• Clock drivers
• Bus-oriented transmitters or receivers

Procurement Notes

Verify the specific package variant, as the MTC suffix denotes TSSOP-20 while other variants exist. Confirm RoHS compliance and Pb-free status during procurement. Ensure ordering information matches the required shipping format, such as tape and reel specifications. Validate that the component meets moisture sensitivity level requirements for your assembly process.

Selection Notes

Select this component when interfacing low-voltage logic with 5 V systems requiring bidirectional bus driving. Consider the 1.65 V to 5.5 V operating range for flexible power supply designs. Evaluate the propagation delay specifications against system timing constraints. Ensure adequate thermal management for the chosen package type under maximum load conditions.

Part Context

This part belongs to the LCX family of low-voltage CMOS logic devices manufactured by onsemi. The LCX series is designed to bridge the gap between older 5 V logic families and modern low-voltage standards. It serves as a standard octal buffer solution for general-purpose digital applications requiring high speed and low power consumption.

Replacement Considerations

Compatible substitutes include the MM74LCX240MTC from ON Semiconductor (formerly Maxim Integrated) and the MC74LCX240MTC from onsemi. Verify pin compatibility and electrical characteristics before substitution. Ensure the replacement part supports the same 5 V tolerance and operating voltage range.