CD74FCT244M

Overview

The CD74FCT244M is a bus driver from the FCT series manufactured by Harris Corporation. It features two independent functions, each handling four bits of data with true output polarity. The device utilizes CMOS technology and provides three-state outputs controlled by a low-active enable signal. It is housed in a PDSO20 package and operates within a temperature range of -40°C to 85°C. The component supports a load capacitance of 50 pF and has a maximum output current of 64 mA.

Feature Summary

• Provides dual four-bit bus driving capability with true output polarity
• Features three-state outputs for effective bus line management
• Incorporates low-active enable control for precise timing synchronization

Applications

• High-speed data bus buffering applications
• Clock distribution circuits requiring precise timing
• Memory address register interfacing

Procurement Notes

Verify the specific suffix 'M' against official Harris documentation to confirm package type and material specifications. Ensure compatibility with existing system voltage levels and thermal requirements before procurement. Confirm RoHS status as historical records may vary.

Selection Notes

Select this component when dual four-bit isolation is required for high-speed digital systems. Consider the FCT series speed characteristics and CMOS power consumption benefits over older logic families. Verify pinout compatibility with target PCB layouts.

Part Context

This part belongs to the Harris FCT logic family, designed for fast clocking and low power consumption. It serves as a successor to earlier 74F series devices, offering improved performance metrics while maintaining standard logic interface compatibility for modern digital designs.

Replacement Considerations

Check for direct equivalents from Texas Instruments or other manufacturers that maintain the same FCT specification and PDSO20 footprint. Ensure functional parity regarding enable logic and output drive strength.