CD74FCT16646ATMT

Overview

The CD74FCT16646ATMT is a FAST bus transceiver manufactured by Harris Corporation. It features two non-inverting elements, each handling eight bits of data, resulting in a 16-bit wide configuration. The device utilizes a 56-pin TSSOP package and operates with a supply voltage range of 4.5V to 5.5V. Outputs are three-state, allowing for effective bus management in high-speed digital systems.

Feature Summary

• Provides non-inverting logic functionality for signal transmission
• Supports 16-bit data width through dual eight-bit elements
• Features three-state outputs for controlled bus interfacing

Applications

• High-speed bus driver applications
• Registered transceiver circuits
• Data communication interfaces

Procurement Notes

Verify the manufacturer origin as Harris Corporation or its successors, noting that original Harris components may be obsolete. Confirm the specific suffix ATMT corresponds to the 56-TSSOP package and operating temperature range. Check RoHS compliance status as older Harris parts often lack modern environmental certifications. Ensure the part number matches the exact pinout and electrical specifications required for your design.

Selection Notes

Select this component when a 16-bit non-inverting transceiver with three-state outputs is required. The 56-TSSOP package suits surface-mount designs needing high pin density. Verify that the 4.5V to 5.5V supply voltage aligns with your system's power rails. Consider the FAST series speed characteristics for timing requirements.

Part Context

This part belongs to the FCT (Fast CMOS) series from Harris Corporation, designed for high-speed digital applications. The FCT line typically offers improved performance over standard HC/HCT logic families. As a Harris product, it represents legacy semiconductor manufacturing before corporate acquisitions affected the brand's current availability and support structure.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the discontinued status of many Harris components, equivalent parts from other manufacturers should be evaluated based on pin compatibility, electrical specifications, and package dimensions.