CD74FCT540M

Overview

The CD74FCT540M is an octal buffer and line driver manufactured by Texas Instruments, utilizing BiCMOS technology within the FCT logic series. It features eight non-inverting inputs and outputs housed in a 20-pin SOIC package. The device operates at a supply voltage between 4.75 V and 5.25 V, with a maximum low-level output current of 64 mA and high-level output current of -15 mA. Static current is typically 8 µA, while operating power consumption reaches 80 µA. It functions reliably across temperatures from 0°C to +70°C.

Feature Summary

• Octal configuration providing eight independent buffering channels for parallel data handling
• BiCMOS construction enabling high-speed performance suitable for 5V logic systems
• Non-inverting signal path maintaining input polarity at the output stage

Applications

• Bus-oriented memory and register implementations
• Clock drivers and timing distribution networks
• Bidirectional bus transceivers requiring buffering

Procurement Notes

Verify the specific suffix against the official datasheet to confirm pinout and electrical characteristics. Ensure the component meets RoHS requirements if applicable to your assembly process. Confirm the package type matches your PCB footprint design. Check for any obsolete status or lifecycle notices directly from Texas Instruments before finalizing procurement plans.

Selection Notes

Select this component when designing 5V logic interfaces requiring high drive capability and speed. The FCT series offers compatibility with standard TTL and CMOS levels. Consider the SOIC-20 package constraints for thermal management and board space. Verify that the required output current specifications align with the load conditions of the connected circuitry.

Part Context

This part belongs to the CD74FCT family of high-speed BiCMOS logic devices. It serves as a buffer and driver solution for digital systems. The FCT series is designed for applications demanding faster switching speeds than standard LS logic. It complements other octal buffers like the CD74FCT541 for non-inverting applications.

Replacement Considerations

• CD74FCT541M