SN74LVCH16543ADLR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVCH16543ADLR is a 16-bit registered transceiver from the Texas Instruments LVCH series, designed for 2.5-V and 3.3-V CMOS and LVTTL logic families. It features a 56-pin SSOP package with two independent circuits of eight bits each. The device supports bidirectional data transfer between bus lines and registers, utilizing positive-edge clocking for data latching. Key electrical parameters include a propagation delay of 5.8 ns at 3.3 V, low quiescent current, and output drive capabilities suitable for high-speed digital applications.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides 16-bit registered data storage with bidirectional bus transceiver functionality
• Supports mixed voltage operation compatible with 2.5-V and 3.3-V systems
• Features latch-up performance exceeding 100 mA per JESD 78 standards

Buffers, Drivers, Receivers, Transceivers Applications

• High-density data buffering in computer and consumer electronics
• Clocking data into and out of registers in communication systems
• Bus-oriented memory and interface circuits requiring registered I/O

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'DLR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the orderable part number matches the exact voltage range and package dimensions specified in the latest datasheet revision to ensure compatibility with existing PCB footprints and manufacturing equipment.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring 16-bit wide data paths with integrated registration at 3.3-V logic levels. Consider the LVCH series for its optimized performance in low-voltage applications compared to standard LVC devices. Ensure the design accounts for the thermal characteristics of the SSOP-56 package and the power supply decoupling requirements associated with high-speed switching loads.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74LVCH1654x family of 16-bit registered transceivers manufactured by Texas Instruments. It is part of the broader LVCH (Low Voltage CMOS High Speed) product line, which offers improved speed and lower power consumption compared to previous generations. The family is widely used in portable and battery-operated applications due to its efficient voltage operation.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Check for direct pin-compatible alternatives within the same LVCH family or cross-reference with other manufacturers offering equivalent 16-bit registered transceivers in SSOP-56 packages. Verify functional equivalence regarding propagation delay and output drive strength before substitution.