74FCT16543ATPACTG4

Buffers, Drivers, Receivers, Transceivers Overview

The Texas Instruments 74FCT16543ATPACTG4 is a registered bus transceiver belonging to the FCT logic series. It features two independent circuits, each handling eight bits for a total of sixteen channels. The device operates with a supply voltage range of 4.5 V to 5.5 V and utilizes TTL input and output levels. It provides three-state outputs with a low-level output current of 64 mA and a high-level output current of -32 mA. The propagation delay is specified at 6.5 ns. The component is housed in a TSSOP-56 package and supports surface mount installation.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides latched data storage capability integrated within the bus transceiver architecture
• Features independent output enable controls for each transmission direction
• Supports non-inverting signal polarity for direct data path applications

Buffers, Drivers, Receivers, Transceivers Applications

• High-speed parallel data bus interfacing in computer systems
• Memory buffer applications requiring registered data holding
• I/O port expansion in embedded controller designs

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix G4 indicates RoHS compliance status against the manufacturer's latest documentation. Confirm the active lifecycle status as availability may vary by region. Ensure the TSSOP-56 package dimensions match the target PCB footprint requirements before finalizing procurement decisions.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when a registered transceiver with FCT speed performance is required. The 6.5 ns propagation delay suits moderate-to-high speed digital interfaces. Verify that the 4.5 V to 5.5 V operating voltage aligns with the system power rails. Consider the 64 mA drive strength for adequate load driving capabilities on the bus lines.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the broader 74FCT16543 family of registered bus transceivers. Variants within this family share identical logical functionality but differ in packaging options such as SSOP or TSSOP. The CY prefix often denotes Cypress Semiconductor origins prior to acquisition, while TI branding reflects current manufacturing stewardship.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The 74FCT16543ATPACT is listed as an obsolete predecessor. Check for direct pin-compatible alternatives within the same FCT registered transceiver category from Texas Instruments or other logic manufacturers.