CY74FCT162646ATPAC

Overview

The CY74FCT162646ATPAC is a 16-bit registered bus transceiver from the FCT logic family, manufactured by Cypress Semiconductor Corp. It operates on a single 5.0V power supply within a voltage range of 4.5V to 5.5V. The device features two independent 8-bit registers and bidirectional data paths with true outputs. It utilizes a 56-pin TSSOP package with a 0.240-inch body width. The component supports an operating temperature range from -40°C to +85°C and has a maximum power dissipation of 1000 mW.

Feature Summary

• Integrates dual 8-bit D-type flip-flops for data registration at the receiver side
• Provides bidirectional data transfer capability between A and B buses
• Features independent direction control inputs for each byte pair
• Offers three-state outputs with series resistors for bus isolation

Applications

• High-density memory buffer interfaces
• Registering data in high-speed communication systems
• Bus bridging applications requiring signal integrity
• System architecture designs needing registered I/O expansion

Procurement Notes

Verify the specific suffix 'A' against official datasheets to confirm it denotes a specific manufacturing lot or revision rather than a functional variant. Ensure the TSSOP-56 package matches the target PCB footprint dimensions. Confirm RoHS compliance status if environmental regulations apply to the final assembly. Cross-reference the manufacturer part number with current availability lists as product lifecycles may change.

Selection Notes

Select this component when a 16-bit registered transceiver with independent byte control is required. The FCT technology offers speed comparable to LS logic but with CMOS power consumption. Consider the 56-pin TSSOP package constraints for board space. Verify that the 5V supply voltage aligns with the system's logic levels. Ensure the bidirectional nature fits the data flow requirements of the design.

Part Context

This part belongs to the CY74FCT162646 family of registered bus transceivers. It shares functional similarities with other FCT series devices but is distinct in its 16-bit configuration and dual-register structure. The 'TPAC' suffix indicates the TSSOP-56 package type. It is designed for applications requiring reliable data latching and bidirectional transfer in 5V logic environments.

Replacement Considerations

Check for direct substitutes like the CY74FCT162646CTPVC or CY74FCT162646TPVCT, ensuring pin compatibility and electrical specifications match. Verify if alternative packages such as SSOP are acceptable for the design. Confirm that any replacement maintains the same 16-bit registered functionality and 5V operation.