SN74AXC8T245QPWRQ1

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AXC8T245QPWRQ1 is an automotive-grade, 8-bit dual-supply bus transceiver designed for voltage level translation between devices operating at different voltage nodes. It features configurable power rails (VCCA and VCCB) supporting voltages from 0.65 V to 3.6 V on both ports. The device provides non-inverting data transmission with three-state outputs and includes Ioff circuitry for partial power-down applications. It is qualified under AEC-Q100 standards for automotive use and operates within a temperature range of -40°C to +125°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Dual-supply architecture allows independent voltage configuration for each port, enabling seamless translation between low-voltage and standard industrial voltage nodes.
• Integrated Ioff circuitry disables outputs during power-down to prevent backflow current and protect the device from damage.
• VCC isolation feature ensures high-impedance states if either supply rail drops below specified thresholds, effectively isolating connected buses.

Buffers, Drivers, Receivers, Transceivers Applications

• Automotive infotainment systems requiring communication between disparate voltage domains
• Industrial control interfaces connecting sensors and controllers with varying supply levels
• Enterprise and communication equipment managing asynchronous data bus transfers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify that the specific suffix Q1 confirms AEC-Q100 automotive qualification status. Confirm the TSSOP-24 package variant matches the design footprint requirements. Ensure the voltage translation specifications align with the target system's operational rails before integration.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing logic families with significantly different supply voltages, such as 0.7 V or 0.9 V nodes with 1.8 V or 3.3 V systems. It is suitable for designs requiring robust voltage translation without complex external circuitry. Consider the dual-supply requirement versus single-supply alternatives based on board space and power budget constraints.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74AXC8T245 family of 8-bit dual-supply bus transceivers. It serves as the automotive-qualified version of the commercial SN74AXC8T245 series, offering enhanced reliability for harsh environments while maintaining compatibility with existing voltage translation architectures.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The SN74AVC8T245QPWRQ1 is a compatible predecessor in the AVC series, though it supports a narrower voltage range (1.2 V to 3.6 V). Verify that the lower maximum data rate and voltage limits of the AVC variant meet the specific application requirements.