74LVT240MSA

Overview

The onsemi 74LVT240MSA is a low-voltage octal buffer and line driver featuring three-state outputs, housed in a 20-lead shrink small outline package (SSOP). It operates within a supply voltage range of 2.7V to 3.6V and supports input voltages up to 5.5V. The device provides an output high current of -32mA and an output low current of 64mA. Propagation delays are specified between 1.1ns and 4.6ns depending on the voltage condition. It functions as an inverting buffer compatible with standard logic families.

Feature Summary

• Provides glitch-free bus loading through power-up/down high impedance states
• Supports live insertion and extraction without system disruption
• Interfaces directly with 5V systems while operating at lower supply voltages
• Fabricated using advanced BiCMOS technology for high-speed operation

Applications

• Memory address drivers
• Clock signal distribution
• Bus-oriented transmitters
• Bus-oriented receivers

Procurement Notes

Verify the specific ordering suffix to confirm the SSOP package type and JEDEC MO-150 compliance. Ensure the component matches the original Fairchild Semiconductor specifications if sourcing from third-party distributors. Confirm RoHS material declarations and lead-free status against current manufacturing standards before finalizing procurement.

Selection Notes

Select this component when designing low-voltage systems requiring octal buffering with three-state control. It is suitable for applications needing interface capability between 3.3V logic and 5V environments. Consider the propagation delay characteristics and output drive strength requirements relative to the load capacitance and trace lengths in the target circuit design.

Part Context

This part belongs to the 74LVT/74LVTH series of low-voltage logic devices manufactured by onsemi, formerly Fairchild Semiconductor. The LVT series utilizes BiCMOS technology to achieve performance levels similar to 5V ABT logic while maintaining lower power dissipation. The MSA suffix specifically denotes the 20-lead SSOP package format.

Replacement Considerations

Direct functional substitutes include the 74LVTH240 variants which share identical pinouts and electrical characteristics but include bushold inputs. Other compatible octal buffers from different manufacturers should be evaluated for matching voltage ranges, package dimensions, and switching speeds.