SN74LVTH162245KR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVTH162245KR is a 3.3-V ABT 16-bit bus transceiver with 3-state outputs, manufactured by Texas Instruments. It belongs to the Widebus family and supports mixed-mode signal operation, allowing 5-V input and output voltages with a 3.3-V VCC supply. The device operates down to 2.7 V for unregulated battery applications. It features active bus-hold circuitry on data inputs to eliminate external pullup/pulldown resistors. The A-port outputs include equivalent 22-ohm series resistors to reduce overshoot and undershoot. It provides Ioff and power-up 3-state support for hot-insertion applications.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation with 5-V tolerant inputs and outputs while operating at 3.3 V
• Features active bus-hold circuitry on data inputs to maintain valid logic states without external components
• Includes Ioff and power-up 3-state circuitry to prevent damaging current backflow during hot insertion
• A-port outputs incorporate equivalent 22-ohm series resistors to minimize signal overshoot and undershoot

Buffers, Drivers, Receivers, Transceivers Applications

• Mixed-mode signal transmission between 5-V and 3.3-V system environments
• Hot-insertion applications requiring isolation during power-up or power-down
• Unregulated battery operation systems supporting voltage levels down to 2.7 V

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific KR suffix indicates the VFBGA-GQL package configuration when sourcing this part number. Confirm that the ordering information matches the required pinout and thermal characteristics for your PCB layout. Ensure compatibility with the specified -40°C to 85°C operating temperature range for your application environment.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring 16-bit bidirectional data transfer with mixed-voltage tolerance. It is suitable where space constraints favor a compact BGA package over larger TSSOP or SSOP options. Consider its low ground bounce performance and distributed power pins for high-speed switching noise reduction in dense layouts.

Buffers, Drivers, Receivers, Transceivers Part Context

This device is part of the SN74LVTH162245 family, which includes variants in TSSOP, SSOP, and other BGA packages. The KR suffix specifically denotes the VFBGA-GQL package type. Other family members share identical electrical specifications but differ in physical footprint and pin assignment, such as the DGGR or DL variants.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVTH162245DGGR

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle unused or undriven inputs?

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state, eliminating the need for external pullup or pulldown resistors.

What is the purpose of the series resistors in the A-port outputs?

The A-port outputs include equivalent 22-ohm series resistors designed to reduce overshoot and undershoot during signal transitions.