CD74FCT245E

Overview

The CD74FCT245E is an octal bus transceiver from the FCT series manufactured by Harris Corporation. It features true output polarity and operates within a supply voltage range of 4.75 V to 5.25 V. The device utilizes BICMOS technology and provides three-state outputs for effective bus line management. It is housed in a 20-pin plastic dual in-line package (PDIP).

Feature Summary

• Octal bidirectional data transfer capability between two buses.
• Three-state outputs isolate the device when disabled.
• Independent direction control manages data flow.

Applications

• Memory mapping systems
• Bus-oriented architectures
• Control lines

Procurement Notes

Verify the manufacturer origin, as Harris Corporation's logic assets were acquired by Texas Instruments. Confirm that the specific part number corresponds to the original Harris production run rather than a TI rebranding or successor variant. Ensure the PDIP-20 package matches the required footprint and pin configuration for the target application.

Selection Notes

Select this component for applications requiring high-speed octal data transfer with low power consumption. The FCT series offers compatibility with TTL inputs while maintaining CMOS noise immunity. Verify that the operating temperature range and package style meet the system requirements before finalizing the design.

Part Context

This component belongs to the FCT (Fast CMOS) logic family, designed for high-speed digital applications. It bridges the performance gap between standard CMOS and ECL technologies. The octal configuration allows for efficient parallel data transmission across wide buses in complex digital systems.

Replacement Considerations

Texas Instruments CY74FCT245T is a documented equivalent offering identical functionality and pinout compatibility. Verify electrical specifications and package dimensions to ensure seamless integration into existing designs without modification.