IDT74FCT240KAP

Overview

The IDT74FCT240KAP is a Fast CMOS octal buffer and line driver manufactured by Integrated Device Technology. It features eight independent, non-inverting buffers with three-state outputs controlled by an active-low enable input. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports a load capacitance of up to 50 pF. It provides high drive capability with a low-level output current of 64 mA and a high-level output current of 32 mA. The component functions reliably across an industrial temperature range from -40 °C to +85 °C.

Feature Summary

• Octal configuration providing eight independent signal paths for complex bus architectures
• Three-state output design enabling efficient multipoint communication on shared data lines
• Fast CMOS technology ensuring high-speed operation with minimal power consumption
• Robust drive strength suitable for direct interfacing with high-capacitance loads

Applications

• High-performance microprocessor systems requiring fast data buffering
• Clock distribution networks for timing-critical digital circuits
• Memory bus drivers in computer architecture designs
• General-purpose I/O expansion interfaces

Procurement Notes

Verify the manufacturer part number IDT74FCT240KAP against official Integrated Device Technology documentation to confirm authenticity. Ensure the component matches the specified TSSOP-20 package and RoHS compliance status. Cross-reference electrical parameters such as supply voltage and drive current with the original datasheet to prevent integration errors. Confirm that the supplier provides traceable origin details consistent with the original brand specifications.

Selection Notes

Select this component when designing systems requiring eight buffered channels with high drive capability and three-state control. It is appropriate for applications needing fast CMOS performance at standard 5V logic levels. Consider the TSSOP-20 package constraints for PCB layout. Evaluate thermal requirements based on the specified operating temperature range and ensure compatibility with existing bus protocols and load capacitances.

Part Context

This device belongs to the FCT (Fast CMOS) logic family, which bridges the speed gap between standard TTL and advanced CMOS technologies. The octal buffer variant is commonly used in legacy and modern mixed-signal systems where reliable signal integrity and moderate speed are required. It serves as a fundamental building block for data routing and isolation in digital electronics.

Replacement Considerations

Check for cross-references from other manufacturers offering equivalent octal bus drivers with identical pinouts and electrical characteristics. Verify that any substitute maintains the same three-state enable logic and drive current capabilities to ensure system compatibility without redesign.