CD74FCT374ATM

Overview

The CD74FCT374ATM is an octal transparent D-type flip-flop manufactured by Harris Corporation, belonging to the FCT logic series. It features a CMOS technology with true output polarity and operates within a supply voltage range of 4.5 V to 5.5 V. The device provides three-state outputs with series resistors and includes bus hold inputs to eliminate external pull-up requirements. It supports a maximum operating temperature of 85 °C and a minimum of -40 °C, packaged in a PDSO48 small outline configuration.

Feature Summary

• Octal transparent D-type flip-flop functionality with true output polarity
• Bus hold inputs integrated to remove the need for external pull-up resistors
• Three-state outputs equipped with series resistors for improved signal integrity

Applications

• High-speed data latching in digital systems
• Parallel-to-serial data conversion interfaces
• Memory address buffering applications

Procurement Notes

Verify the manufacturer designation as Harris Corporation rather than Texas Instruments, as part number prefixes may vary across suppliers. Confirm the specific package type PDSO48 matches the required footprint. Ensure the operating temperature range aligns with the intended environmental conditions. Check for any specific ordering suffixes that might indicate tape-and-reel packaging versus tube quantities. Validate the component authenticity through authorized distribution channels.

Selection Notes

Select this component when an octal register with high-speed performance and bus hold capabilities is required. The FCT series offers compatibility with standard logic families while providing enhanced drive strength. Consider the PDSO48 package dimensions for PCB layout constraints. Evaluate the power consumption characteristics against system thermal limits. Ensure the input thresholds meet the driving source specifications for reliable operation.

Part Context

This component belongs to the Harris FCT (Fast CMOS Technology) family, designed for high-speed digital applications. The FCT series bridges the performance gap between standard TTL and advanced CMOS technologies. Harris Corporation specialized in such logic solutions before industry consolidations. The CD74FCT374 variant specifically addresses needs for parallel data storage with tri-state output control.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.