SN74AVCH32T245KR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AVCH32T245KR is a 32-bit dual-supply bus transceiver from Texas Instruments' AVC logic family. It features configurable voltage translation between independent VCCA and VCCB rails, supporting levels from 1.2V to 3.6V. The device provides tri-state outputs for bus isolation and includes Ioff circuitry for partial power-down protection. It operates within a temperature range of -40°C to +85°C and utilizes a 96-pin Microstar BGA package.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Configurable dual-rail architecture allowing independent A and B port voltage selection
• Ioff support prevents backflow current during partial power-down states
• Direction control enables asynchronous bidirectional data transfer between buses

Buffers, Drivers, Receivers, Transceivers Applications

• Personal electronic devices requiring low-voltage level shifting
• Industrial systems with mixed voltage domains
• Enterprise infrastructure equipment
• Telecommunications hardware

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'KR' against the official datasheet to confirm the exact package type and tape-and-reel specifications. Ensure compatibility with existing PCB footprints for the 96-pin Microstar BGA configuration. Confirm that the operating voltage ranges align with the target system's power rails before integration.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing high-density buses between different voltage nodes. The 32-bit width reduces pin count compared to lower-bit alternatives. Verify that the required data rates are supported by the specific voltage translation scenario, as performance varies with rail configurations.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74AVC series, designed for low-voltage applications. It serves as a bridge for communication between components operating at distinct supply voltages. The device integrates robust ESD protection and latch-up resistance exceeding 100mA per JESD 78 standards.

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle partial power-down conditions?

The integrated Ioff circuit automatically disables outputs to prevent backflow current when either supply rail is powered down.

What is the reference voltage for control inputs?

Control inputs such as DIR and OE are referenced to the VCCA supply voltage.