74LVQ240SJX

Overview

The onsemi 74LVQ240SJX is an inverting octal buffer and line driver featuring 3-STATE outputs. It operates within a supply voltage range of 2.0V to 3.6V and supports industrial temperatures from -40°C to +85°C. The device provides high drive capability with ±50mA output current and includes patented EMI reduction circuitry. Propagation delays are guaranteed at 10.5ns maximum at 3.3V, with dynamic threshold performance ensuring reliable signal integrity.

Feature Summary

• Implements patented EMI reduction circuitry for low noise applications
• Provides improved latch-up immunity and 4kV minimum ESD protection
• Guarantees incident wave switching into 75Ω transmission lines

Applications

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

Procurement Notes

Verify the specific package variant, as the SJX suffix indicates SOP (EIAJ TYPE II). Confirm RoHS compliance status through official documentation. Check for obsolescence notices, as Fairchild products may have transitioned to onsemi manufacturing protocols. Ensure unused inputs are tied to valid logic levels during operation.

Selection Notes

Select this component for designs requiring low power dissipation and reduced electromagnetic interference in 3.3V systems. The inverting logic function suits applications needing phase inversion. Verify that the 3-STATE control inputs align with system bus management requirements. Consider the SOP package dimensions for PCB layout constraints.

Part Context

This part belongs to the LVQ series of low-voltage CMOS logic devices originally manufactured by Fairchild Semiconductor. Following corporate integration, these components are now managed under the onsemi portfolio. The LVQ family is designed for high-performance digital applications requiring robust noise immunity and fast switching speeds.

Replacement Considerations

Direct substitutes include the 74LVQ240SC (SOIC JEDEC) and 74LVQ240QSC (QSOP) from the same manufacturer family. Cross-brand equivalents must match the inverting octal buffer configuration, 3.3V operating voltage, and 3-STATE output capabilities.