FIN1049MTC

Overview

The FIN1049MTC is a high-speed, low-power octal buffer and line driver manufactured by Fairchild Semiconductor. It features three-state outputs and is designed for memory address drivers, clock drivers, and bus-oriented transmitter/receiver applications. The device utilizes advanced CMOS technology to achieve performance comparable to Bipolar Schottky TTL while maintaining low power dissipation. Key electrical characteristics include a typical propagation delay of 5.4 ns at Vcc=5V and a maximum power down current of 4 µA at 25°C. It offers power-down protection on all inputs and outputs and is pin and function compatible with the 74HCT540 standard.

Feature Summary

• Octal buffer/line driver configuration with three-state outputs
• Advanced high-speed CMOS fabrication for fast switching
• Power-down protection integrated on all input and output pins
• Direct pin and function compatibility with industry-standard 74HCT540

Applications

• Memory address drivers
• Clock drivers
• Bus-oriented transmitter/receivers

Procurement Notes

Verify the manufacturer origin as Fairchild Semiconductor, noting that the company has undergone corporate restructuring and acquisitions. Confirm the specific package type matches the MTC designation in official documentation. Ensure the component meets required RoHS compliance standards for your application environment before finalizing procurement.

Selection Notes

Select this component when an octal buffer with three-state control is required for high-speed digital interfaces. It serves as a direct replacement for the 74HCT540 in designs needing CMOS low-power benefits. Consider its 5.4 ns propagation delay for timing-critical bus applications. Verify voltage levels match the system's 5V logic requirements.

Part Context

This part belongs to the VHCT series of advanced high-speed CMOS devices. These components are engineered to bridge the gap between traditional bipolar speed and modern CMOS efficiency. The series is widely used in legacy systems requiring HCT compatibility but benefiting from lower static power consumption.

Replacement Considerations

The 74HCT540 is the primary functional equivalent. Other octal buffers with three-state outputs from manufacturers like NXP or Texas Instruments may serve as alternatives if pin compatibility is not strictly required.