TC74HCT240AF(EL,F)

Overview

The TC74HCT240AF(EL,F) is an octal bus buffer manufactured by Toshiba Semiconductor and Storage. It features TTL-compatible input levels and three-state outputs, designed for high-speed data transmission applications. The device operates within a supply voltage range of 4.5V to 5.5V, ensuring compatibility with standard CMOS logic families. Packaged in a 20-pin SOP format, it provides efficient signal buffering for digital systems requiring robust interface capabilities.

Feature Summary

• TTL-compatible input level acceptance
• Three-state output capability
• Octal configuration for parallel data handling

Applications

• High-speed data transmission systems
• Clock drivers
• Bus-oriented architectures

Procurement Notes

Verify the specific ordering suffix (EL,F) against the manufacturer's current datasheet to confirm package type and tape/reel specifications. Ensure compliance with RoHS directives if required for your application. Cross-reference the part number with official Toshiba Semiconductor and Storage documentation to validate availability and manufacturing status before finalizing procurement decisions.

Selection Notes

Select this component when TTL-level input compatibility is required alongside CMOS output performance. The three-state feature allows for effective bus sharing in complex digital designs. Consider the SOP-20 package constraints regarding thermal management and board space. Verify that the operating voltage range aligns with the system's power supply rails.

Part Context

This part belongs to the TC74HCT series, which bridges TTL and CMOS logic families. It serves as a critical interface component in mixed-signal environments. The octal buffer design simplifies routing for wide data buses. Toshiba Semiconductor and Storage positions this device for reliable operation in industrial and consumer electronics applications.

Replacement Considerations

Check for direct substitutes like TC74HC240 variants if TTL input tolerance is not strictly necessary. Verify pinout compatibility with existing PCB layouts. Ensure electrical characteristics such as propagation delay and drive strength meet system requirements when considering alternative manufacturers.