CD74FCT245ATM

Overview

The CD74FCT245ATM is an octal bus transceiver from the FCT logic series, manufactured by Harris Corporation. It features a single function with eight bits of data transfer capability and true output polarity. The device utilizes a PDSO20 plastic package and operates within a supply voltage range of 4.75 V to 5.25 V. It supports bidirectional data flow controlled by a direction control input and includes three-state outputs. The component is designed for CMOS technology and offers a typical propagation delay of 4.6 ns at 5 V with a 50 pF load.

Feature Summary

• Provides bidirectional data transmission between two 8-bit buses under direction control
• Features three-state outputs compatible with system bus structures
• Operates with TTL-compatible input levels for direct interface with TTL devices

Applications

• High-speed data bus architectures requiring bidirectional transfer
• Memory-to-memory or memory-to-I/O data transfers in computer systems
• Bus-oriented driving applications utilizing 3-state logic

Procurement Notes

Verify the manufacturer designation as Harris Corporation when sourcing this specific part number. Confirm the package type is PDSO20 and check for RoHS compliance status, which may be non-compliant depending on production batch. Ensure the operating temperature range matches your application requirements, typically spanning -40 °C to 85 °C for this variant.

Selection Notes

Select this component for applications requiring fast switching speeds and high drive capability within standard 5V logic families. The FCT series offers improved performance over older 74F variants while maintaining pin compatibility. Consider the PDSO20 package constraints for PCB layout and thermal management during selection.

Part Context

This device belongs to the Harris Semiconductor FCT (Fast CMOS Technology) line, designed to bridge the speed gap between standard TTL and advanced CMOS technologies. The CD74FCT245 specifically addresses the need for efficient octal data routing in digital systems, providing reliable signal integrity for parallel data paths.