CY74FCT16543TPVCT

Overview

The CY74FCT16543TPVCT is a 16-bit registered bus transceiver manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and features TTL-compatible input and output levels. The device provides three-state outputs with a low-level output current of 64 mA and a high-level output current of -32 mA. It exhibits a propagation delay of 6.5 ns and functions as a non-inverting latched transceiver. The component is housed in a TSSOP-56 package and supports surface mount installation.

Feature Summary

• Provides 16-bit data transfer capability through two independent 8-bit functional circuits.
• Integrates registered latch functionality for data storage during transmission.
• Features three-state outputs to facilitate bus line management.

Applications

• High-speed data bus architectures requiring latched buffering
• Memory interface circuits utilizing registered transceivers
• System boards needing TTL-compatible bidirectional data control

Procurement Notes

Verify the specific suffix 'TPVCT' against official Texas Instruments documentation to confirm the exact tape-and-reel packaging configuration and temperature grade. Ensure compatibility with existing PCB footprints for the TSSOP-56 package. Cross-reference the manufacturer part number with current lifecycle status, as availability may vary across distribution channels.

Selection Notes

Select this component when designing systems that require 16-bit wide registered data paths with TTL logic level compatibility. The FCT series offers faster switching speeds compared to standard CMOS alternatives. Verify that the required drive strength of 64 mA matches the load requirements of the connected bus lines.

Part Context

This device belongs to the 74FCT (Fast CMOS) logic family, which bridges the performance gap between TTL and CMOS technologies. The 16543 variant specifically denotes a 16-bit width with internal latching capabilities. It is designed for applications demanding high-density integration and reliable data retention on system buses.

Replacement Considerations

Consult official substitution guides for equivalent 16-bit registered transceivers from the same manufacturer or compatible third-party sources if this specific package variant is unavailable.