74HCT240D,652

Overview

The Nexperia 74HCT240D,652 is an octal buffer and line driver with inverting outputs, manufactured using HCT CMOS technology. It operates within a supply voltage range of 4.5 V to 5.5 V. The device features three-state outputs and provides a high-level output current of -6 mA and a low-level output current of 6 mA. It is housed in a 20-pin SOIC package.

Feature Summary

• Octal configuration providing eight independent inverting buffers or line drivers on a single integrated circuit.

Applications

• Memory address buffering for data buses
• Clock distribution circuits
• Carry propagation in arithmetic logic units

Procurement Notes

Verify component status as the manufacturer has indicated this product is obsolete and will be discontinued. Confirm availability through authorized distributors or secondary markets, as standard factory orders may not be accepted. Ensure compatibility with existing design specifications before procurement.

Selection Notes

Select this component when designing systems requiring robust signal buffering with TTL-compatible input levels. The HCT series ensures compatibility with standard TTL logic families while offering CMOS power efficiency. Verify that the required drive current and propagation delay characteristics meet the specific timing constraints of the target application.

Part Context

This part belongs to the 74HCT family of high-speed CMOS logic devices produced by Nexperia. The 74HCT240 variant specifically serves as an octal buffer with inverting functionality. It is designed for applications requiring reliable signal transmission and bus driving capabilities within standard digital logic environments.

Replacement Considerations

Check for direct pin-to-pin replacements from other manufacturers that match the 74HCT logic family specifications. Consider newer generation components if obsolescence management is critical, ensuring electrical parameters such as voltage ranges and output currents remain compatible.