CD74FCT2646ATQM

Overview

The CD74FCT2646ATQM is a non-inverting bus transceiver manufactured by Harris Corporation, belonging to the FCT logic family. It features one element with eight bits per element and provides three-state outputs. The device operates within a supply voltage range of 4.75V to 5.25V and is housed in a 24-QSOP package measuring 0.154 inches (3.90mm) in width. Electrical characteristics include an output high current of 15mA and an output low current of 64mA.

Feature Summary

• Non-inverting bidirectional data transfer capability
• Three-state output configuration for bus isolation
• Single-element architecture supporting eight-bit parallel transmission

Applications

• High-speed data bus interfaces
• Memory buffer applications
• I/O port expansion systems

Procurement Notes

Verify component authenticity as Harris Corporation assets were acquired by Renesas Electronics. Confirm RoHS compliance status, as original manufacturing records may indicate non-compliance. Ensure the QSOP package dimensions match design requirements. Validate datasheet revisions to confirm electrical specifications align with current system constraints before integration.

Selection Notes

Select this component for designs requiring non-inverting signal direction control with high drive strength. The 64mA output low current supports heavy capacitive loads. Verify compatibility with 5V logic families due to the specific 4.75V-5.25V operating range. Consider the 24-QSOP footprint for PCB layout constraints.

Part Context

This part belongs to the CD74FCT series of fast CMOS logic devices. It shares functional similarities with other FCT transceivers but is distinguished by its specific pinout and package type. The series is designed for high-speed digital applications requiring reliable data transmission between microprocessors and peripheral devices.

Replacement Considerations

CD74FCT2646ATQ: Identical function in a different package variant.