IDT74FCT16543TPA

Overview

The IDT74FCT16543TPA is a registered bus transceiver belonging to the 74FCT logic series. It features two independent circuits, each providing 8-bit data paths for a total of 16 channels. The device utilizes a TSSOP-56 surface-mount package with 56 pins. It operates with non-inverting output polarity and supports TTL input levels alongside CMOS output characteristics. The component is designed for high-speed data transfer applications requiring latched data storage capabilities within the transceiver architecture.

Feature Summary

• Provides registered data storage functionality integrated directly into the bus transceiver path
• Supports bidirectional data transfer between two distinct ports with independent control
• Features three-state outputs to facilitate connection to shared system buses

Applications

• High-speed data acquisition systems requiring signal buffering and timing alignment
• Memory interface circuits where data latching during transfer is necessary
• General-purpose digital logic interfaces in industrial control equipment

Procurement Notes

Verify the specific manufacturer source, as IDT assets were acquired by Renesas Electronics. Confirm that the part number suffix corresponds to the correct tape-and-reel packaging configuration. Ensure compatibility with current RoHS directives and check for any end-of-life notifications or discontinuance alerts associated with this specific component variant before finalizing procurement plans.

Selection Notes

Select this component when a design requires both bus driving capability and internal data registration to prevent glitches during transmission. The FCT technology offers a balance of speed and drive strength suitable for moderate-density digital systems. Consider the TSSOP-56 footprint constraints and ensure the PCB layout accommodates the thermal requirements of the plastic package during operation.

Part Context

This component is part of the broader 74FCT family of fast CMOS logic devices. Similar parts include the IDT74FCT162445 for non-latched applications and the IDT74FCT16541 for unidirectional variants. These devices share common electrical characteristics but differ in data flow directionality and internal storage mechanisms, allowing designers to choose based on specific system topology needs.