74LVTH162245GRDR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVTH162245GRDR 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 from an unregulated battery down to 2.7 V. It features active bus-hold circuitry on data inputs, eliminating the need for external pullup or pulldown resistors. The A-port outputs include equivalent 22-ohm series resistors to reduce overshoot and undershoot.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation with 5-V tolerant I/O while operating at 3.3 V
• Active bus-hold circuitry maintains valid logic states on unused or undriven inputs
• Integrated Ioff and power-up 3-state circuits enable safe hot-insertion without damaging backflow current
• Distributed VCC and GND pins minimize high-speed switching noise

Buffers, Drivers, Receivers, Transceivers Applications

• Mixed-mode signal transmission between 5-V and 3.3-V systems
• Hot-insertion applications requiring controlled power-up and shutdown sequences
• High-speed bidirectional data buses in consumer electronics and industrial equipment

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'GRDR' corresponds to the Microstar Junior package variant when sourcing. Confirm RoHS compliance status and lead finish details against the latest Package Option Addendum. Ensure design compatibility with the specified operating temperature range of -40°C to 85°C. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and current production status.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component for designs requiring 16-bit bidirectional data transfer with 5-V tolerance on a 3.3-V supply rail. The integrated series resistors simplify PCB layout by removing external components. Consider the package constraints of the Microstar Junior form factor during mechanical design. Verify that the drive strength meets the load requirements for the target bus architecture.

Buffers, Drivers, Receivers, Transceivers Part Context

This device is part of the SN74LVTH162245 family within Texas Instruments' Widebus portfolio. It serves as a noninverting bus transceiver designed for low-voltage operations. The family includes variants with different packaging options such as TSSOP, SSOP, and ceramic dual flatpacks. It provides a standardized solution for interfacing legacy 5-V logic with modern 3.3-V systems.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVTH162245DGGR (TSSOP-48 package)

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle unused inputs?

The device utilizes active bus-hold circuitry on all data inputs to maintain a valid logic state, preventing the need for external pullup or pulldown resistors.

What is the purpose of the internal series resistors?

The A-port outputs contain equivalent 22-ohm series resistors designed to reduce signal overshoot and undershoot during high-speed switching.