SN74AXC8T245RJWR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AXC8T245RJWR is an 8-bit dual-supply bus transceiver from Texas Instruments, designed for asynchronous data communication between devices operating at different voltage nodes. It supports configurable voltage translation with independent power rails VCCA and VCCB ranging from 0.65V to 3.6V. The device features three-state outputs and direction control inputs (DIR1, DIR2) to manage data flow between A and B buses. It includes Ioff partial power-down protection and VCC isolation to prevent current backflow and isolate buses during power loss. Operating temperatures range from -40°C to +125°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Configurable dual-rail design supporting voltage levels from 0.65V to 3.6V on both ports
• Partial power-down mode with Ioff circuitry prevents current backflow when powered off
• VCC isolation feature disables all outputs if either supply voltage drops below 100mV
• Direction-controlled bidirectional data transfer with output enable for bus isolation

Buffers, Drivers, Receivers, Transceivers Applications

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

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix RJWR against official Texas Instruments documentation to confirm package type and tape/reel specifications. Ensure the component matches the required operating temperature range and voltage parameters for your application. Cross-reference the manufacturer part number with authorized distributors to confirm authenticity and availability status before procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing logic families requiring voltage translation between low-voltage nodes (0.7V-0.9V) and standard industrial voltages (1.8V-3.3V). Consider its high ESD protection ratings and latch-up performance exceeding 100mA for robust environments. Evaluate the need for VCC isolation and partial power-down features if system power sequencing requires strict bus isolation during startup or shutdown phases.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74AXC8T245 family of 8-bit dual-supply bus transceivers. It is functionally compatible with the SN74AVC8T245 series but offers improved performance characteristics. The RJWR suffix typically denotes a specific reel-based packaging configuration suitable for automated surface-mount assembly processes in high-volume manufacturing environments.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The SN74AVC8T245 is a compatible alternative within the same functional category. Verify pinout compatibility and electrical parameter alignment, particularly propagation delay and supply voltage ranges, before substituting.