SN74AXC8T245RHLR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AXC8T245RHLR is an 8-bit non-inverting bus transceiver from the Texas Instruments AVC family, designed for configurable voltage translation between dual power supplies. It operates with VCCA and VCCB ranging from 0.65 V to 3.6 V, supporting data rates up to 380 Mbps when both supplies are at least 1.8 V. The device features a propagation delay of 13 ns and outputs in a TSSOP-24 package. It supports partial power-down mode via Ioff circuitry to prevent backflow current during power loss.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Configurable dual-supply design allows independent voltage selection for each port within the 0.65 V to 3.6 V range.
• Supports high-speed asynchronous communication with data rates reaching 380 Mbps under specified supply conditions.
• Includes Ioff circuitry to disable outputs and prevent backflow current when the device is partially powered down.
• Features VCC isolation to ensure all level shifter outputs enter a high-impedance state if the input power falls below 100 mV.

Buffers, Drivers, Receivers, Transceivers Applications

• Enterprise and communication systems
• Industrial automation equipment
• Wireless infrastructure networks
• Building automation controllers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix RHLR corresponds to the TSSOP-24 package variant required for your PCB layout. Confirm that the operating environment stays within the -40°C to +125°C temperature range specified for this component. Ensure ESD protection requirements align with the device's JESD 22 standards compliance before finalizing procurement specifications.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing devices operating at low voltage nodes (0.7 V, 0.8 V, 0.9 V) with standard industrial voltages (1.8 V, 2.5 V, 3.3 V). It is suitable for applications requiring bidirectional data transfer with configurable voltage levels. Consider the 13 ns propagation delay and 380 Mbps speed capability for high-performance bus architectures needing robust voltage translation.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74AXC8T245 series of 8-bit dual-supply bus transceivers. It shares functional similarities with the SN74AVC8T245 and 74AVC8T245 but offers enhanced performance characteristics. The device is designed to resolve voltage level mismatches in modern electronic systems, ensuring reliable data transmission across different power domains.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74AVC8T245RHLR

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle partial power-down scenarios?

The SN74AXC8T245RHLR utilizes Ioff circuitry to automatically disable outputs when the device is powered down, preventing backflow current that could damage connected components or other parts of the system.

What is the minimum voltage requirement for achieving maximum data rates?

To support data rates up to 380 Mbps, both VCCA and VCCB must be at least 1.8 V. Lower supply voltages may result in reduced maximum data throughput.