SN74AVCH16T245GQLR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AVCH16T245GQLR is a 16-bit dual-supply noninverting bus transceiver with configurable level-shifting and tri-state outputs. It operates with VCCA and VCCB supply voltages ranging from 1.2 V to 3.6 V, supporting bidirectional data translation between any low-voltage nodes within this range. The device features overvoltage-tolerant I/Os up to 4.6 V, active bus-hold circuitry, and an Ioff function for partial-power-down mode. It is housed in a 56-pin BGA Microstar Junior package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Configurable dual-rail design allows independent operation of ports across the full 1.2 V to 3.6 V power-supply range.
• Overvoltage-tolerant inputs and outputs support mixed voltage-mode data communications without external resistors.
• Active bus-hold circuitry maintains valid logic states on unused or undriven inputs, eliminating the need for external pullup or pulldown resistors.

Buffers, Drivers, Receivers, Transceivers Applications

• Personal electronics
• Industrial systems
• Enterprise infrastructure
• Telecommunications equipment

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify that the specific GQL suffix corresponds to the 56-pin BGA Microstar Junior package configuration required for your layout. Confirm that the component meets RoHS3 compliance standards if mandated by your project specifications. Ensure that the ordering information aligns with the manufacturer's current production status and available package variants.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing interfaces between different low-voltage logic families requiring bidirectional translation. The dual-supply architecture supports flexible voltage node combinations. Consider the thermal resistance characteristics of the BGA Microstar Junior package for adequate heat dissipation in dense PCB layouts.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74AVCH16T245 family of 16-bit dual-supply bus transceivers. The GQL suffix specifically identifies the 56-pin BGA Microstar Junior package variant. This family is designed for asynchronous communication between data buses operating at various low-voltage levels.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Public confirmed substitute part numbers include 74ALVC164245DGG-QJ and 74ALVC164245PAG.

Buffers, Drivers, Receivers, Transceivers FAQ

How does the VCC isolation feature function?

If either VCCA or VCCB input is at GND, both ports are placed in a high-impedance state to prevent false logic levels.

What is the purpose of the Ioff circuitry?

The Ioff circuitry disables the outputs to prevent damaging current backflow through the device during partial-power-down mode.