CD74FCT162646CTMT

Overview

The CD74FCT162646CTMT is a registered bus transceiver from the FCT series, manufactured by Harris Corporation. It features two independent 8-bit functions with true outputs and bidirectional data flow. The device utilizes CMOS technology and operates within a voltage range of 5 V. It is housed in a 56-pin TSSOP plastic package. Key electrical characteristics include a maximum output current of 0.024 A and a propagation delay of 9 ns at nominal supply. The component supports an operating temperature range from -40 °C to 85 °C and provides three-state outputs.

Feature Summary

• Dual independent 8-bit registered bus transceiver architecture
• Bidirectional data transfer capability with direction control
• Three-state outputs integrated with series resistors
• CMOS construction ensuring low power consumption

Applications

• High-speed data bus interfaces in computing systems
• Memory buffer applications requiring registered storage
• Clock distribution networks for synchronous logic
• I/O expansion modules in embedded controllers

Procurement Notes

Verify the specific suffix 'CTMT' against official Harris or Renesas documentation to confirm tape-and-reel packaging and temperature grade specifications. Ensure compliance with RoHS directives as indicated by the non-compliant status in available records. Cross-reference pinout assignments with the official datasheet to prevent integration errors during PCB design and assembly processes.

Selection Notes

Select this component when dual-channel, registered bus interfacing is required with high-speed performance. The FCT series offers compatibility with standard TTL and CMOS logic levels. Consider the 56-pin TSSOP package constraints for board space. Verify that the 9 ns propagation delay meets system timing requirements. Ensure the 5 V supply voltage aligns with the target circuit design parameters.

Part Context

This part belongs to the Harris FCT (Fast CMOS) family, designed for high-speed digital applications. Harris Corporation was acquired by Renesas Electronics, which now manages the product line. The CD74 prefix indicates commercial temperature range availability. The 162646 designation specifically identifies the dual 8-bit registered transceiver function within the broader catalog.

Replacement Considerations

Check for direct equivalents such as the CY74FCT162646 from Cypress or Texas Instruments. Verify pin compatibility and electrical specifications before substitution. Ensure the replacement part supports the same 56-pin TSSOP package and bidirectional registered functionality.