74LCX240SJX

Overview

The onsemi 74LCX240SJX is an octal buffer and line driver belonging to the 74LCX logic family. It features eight inverting outputs with three-state capability, housed in a 20-pin SOP package. The device operates within a supply voltage range of 2 V to 3.6 V. Key electrical parameters include a propagation delay of 1.5 ns at 3.3 V with a 50 pF load, a static current of 10 uA, and output drive currents of ±8 mA. It supports a wide operating temperature range from -40°C to +85°C.

Feature Summary

• Provides eight inverting buffer channels with independent three-state control for bus-oriented architectures.
• Operates across a low voltage range of 2 V to 3.6 V, enabling compatibility with diverse system power rails.
• Features low static power consumption and high noise immunity characteristic of CMOS technology.

Applications

• Memory module data buffering
• Clock distribution networks
• Bidirectional bus transceivers

Procurement Notes

Verify the specific suffix 'SJX' against the manufacturer's latest datasheet to confirm pinout and packaging details. Confirm RoHS compliance status as required by your assembly standards. Check for any obsolescence notices or lifecycle changes directly from onsemi before finalizing procurement plans.

Selection Notes

Select this component when designing systems requiring low-voltage operation between 2 V and 3.6 V. It is suitable for applications needing moderate speed with a 1.5 ns propagation delay. Ensure the SOP-20 package fits the available PCB footprint and that the inverting polarity matches the circuit design requirements.

Part Context

This part belongs to the 74LCX series, which utilizes advanced CMOS technology for low voltage applications. It serves as a standard octal buffer solution within the broader 74xx logic family ecosystem, offering performance improvements over older HC/HCT families while maintaining pin compatibility with similar form factors.

Replacement Considerations

Direct substitutes may include other 74LCX240 variants from different manufacturers, provided they match the SOP-20 package and electrical specifications. Verify equivalent propagation delays and output drive capabilities before substitution.

FAQ

What is the maximum supply voltage for the 74LCX240SJX?

The maximum supply voltage (VCC) for this device is 3.6 V.

Is the 74LCX240SJX inverting or non-inverting?

The 74LCX240SJX is an inverting buffer, meaning the output signal is the logical complement of the input.