CD74FCT16543ATSM96

Overview

The CD74FCT16543ATSM96 is a non-inverting registered bus transceiver from the FCT series, manufactured by Harris Corporation. It features two functional units, each handling eight bits of data with true output polarity. The device utilizes CMOS technology and operates within a supply voltage range of 4.5V to 5.5V, with a nominal rating of 5V. It is housed in a 56-pin Small Outline package (PDSO56/SSOP). Key electrical characteristics include a propagation delay of 6.3 ns and outputs configured as three-state with series resistors. The component supports an operating temperature range from -40°C to 85°C.

Feature Summary

• Registered bus transceiver architecture providing latched data storage for stable signal transmission
• Bus hold inputs eliminate the need for external pull-up resistors
• Direction control functionality allows flexible data flow management between ports

Applications

• High-speed data bus interfaces requiring registered buffering
• Memory mapping systems utilizing 8-bit wide data paths
• Industrial control systems operating within standard CMOS logic levels

Procurement Notes

Verify the specific suffix 'TSM96' against official Harris datasheets to confirm the exact package variant and tape-and-reel specifications. Ensure compatibility with existing PCB footprints for the 56-pin SSOP form factor. Confirm that the 4.5V to 5.5V operating voltage aligns with the target system power rails. Check for any RoHS compliance status updates if environmental regulations apply to the final assembly.

Selection Notes

Select this component when registered bus transfer with direction control is required for 8-bit data lines. The FCT series offers faster switching speeds compared to standard HC or HCT logic families. Consider the 56-pin package density for space-constrained designs. Verify that the three-state output configuration matches the bus arbitration requirements of the application circuit.

Part Context

This part belongs to the Harris CD74FCT family of high-speed CMOS logic devices. The FCT series is designed for applications demanding performance comparable to Schottky TTL but with CMOS power consumption benefits. The 16543 designation specifically indicates a registered transceiver, distinguishing it from unregistered variants like the 16542. Harris Corporation was a prominent manufacturer before its semiconductor assets were acquired by other entities.

Replacement Considerations

Cross-reference with CD74FCT16543ATSM96 equivalents from other manufacturers such as Texas Instruments or ON Semiconductor. Ensure pinout compatibility and identical logical functions. Verify that substitute parts maintain the same 56-pin SSOP package dimensions and electrical characteristics, including the 6.3 ns propagation delay.