IDT74FCT162543TPV

Overview

The IDT74FCT162543TPV is a Fast CMOS registered bus transceiver belonging to the FCT series. It features two independent 8-bit functions, providing a total of 16 bits of data transfer capability in a bidirectional configuration. The device utilizes true output polarity and incorporates latching registers at both A and B ports to capture data independently. It supports 3-state outputs with series resistors for controlled signal integrity. The component is designed for high-speed applications requiring low power consumption and robust ESD protection, operating within standard commercial temperature ranges.

Feature Summary

• Dual 8-bit registered bus transceiver architecture enabling independent 16-bit data handling
• Latching registers at both A and B ports for simultaneous data capture and storage
• Independent output enable controls for each direction allowing flexible bus management
• Fast CMOS technology providing high-speed performance with low power dissipation

Applications

• High-speed parallel data bus interfaces in computing systems
• Memory buffer applications requiring data latching capabilities
• Bidirectional data routing in complex digital logic circuits
• System interconnects where controlled impedance and signal integrity are critical

Procurement Notes

Verify the specific suffix 'TPV' against the manufacturer's official datasheet to confirm package type and pinout compatibility. Ensure the revision level matches your design requirements. Cross-reference RoHS compliance status if environmental regulations apply to your assembly process. Confirm that the lead-free or tin-lead termination options align with your soldering profile specifications before finalizing procurement.

Selection Notes

Select this component when a dual 8-bit registered transceiver with independent latching is required. It is suitable for designs needing bidirectional data flow with precise timing control via separate enables. Consider the TSSOP-56 package constraints regarding board space and thermal management. Compare drive strength and propagation delay specifications against system clock speeds to ensure adequate timing margins for your specific application frequency.

Part Context

This device is part of the broader FCT (Fast CMOS Technology) family, which serves as a high-performance replacement for older ABT and ALS logic families. The IDT74FCT162543TPV specifically addresses the need for registered data transfer in wide-bus architectures. Its integration into the FCT line allows designers to leverage improved switching speeds and lower power consumption compared to legacy bipolar or standard CMOS alternatives.

Replacement Considerations

Check for direct equivalents such as the CY74FCT162543 from Texas Instruments or NXP 74ABT16543 variants. Verify pin-to-pin compatibility and electrical parameter alignment, particularly output drive current and propagation delay. Ensure that any substitute maintains the same latching functionality and independent enable control structure required by the original design.