CY74FCT16543TPVC

Overview

The CY74FCT16543TPVC is a registered bus transceiver from the FCT logic series, manufactured by Cypress Semiconductor Corp. It features two independent 8-bit circuits within a single package, providing a total of 16 channels. The device operates with TTL input and output levels and utilizes a 56-pin TSSOP surface-mount package. Key electrical specifications include a propagation delay of 6.5 ns, a low-level output current of 64 mA, and a high-level output current of -32 mA. It functions as a non-inverting transceiver with three-state outputs and requires a supply voltage between 4.5 V and 5.5 V.

Feature Summary

• Registered bus transceiver architecture with latched data storage for stable signal transmission
• Dual independent 8-bit functional blocks allowing flexible bidirectional data routing
• TTL-compatible input and output voltage levels ensuring interface compatibility
• Three-state outputs with high drive capability for reliable bus driving

Applications

• High-speed parallel data bus interfacing in industrial control systems
• Memory buffer applications requiring registered data holding capabilities
• I/O expansion modules in embedded computing architectures
• Data acquisition systems needing isolated bidirectional signal paths

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to potential availability issues. Confirm RoHS compliance status and specific packaging variants (e.g., tape and reel) against current datasheets. Check for end-of-life notices or obsolescence warnings prior to procurement planning. Ensure supply chain stability for long-term production requirements.

Selection Notes

Select this component when registered bidirectional data transfer with TTL compatibility is required. The dual 8-bit configuration supports complex bus topologies. Verify package constraints against PCB layout limitations for the 56-pin TSSOP form factor. Consider thermal dissipation characteristics given the power consumption specifications during high-frequency operation.

Part Context

This part belongs to the Cypress FCT logic family, designed for fast CMOS technology applications. It serves as a registered transceiver variant within the broader 74FCT series portfolio. The device integrates latch functionality to maintain data integrity during bus transitions, distinguishing it from standard unregistered bus drivers.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official replacement guides or equivalent product lines from Texas Instruments or Cypress for compatible alternatives.