SN74AXCH8T245RHLR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74AXCH8T245RHLR is an 8-bit dual-supply bus transceiver from Texas Instruments' SN74AXC series. It features configurable voltage translation, tri-state outputs, and integrated bus-hold circuitry. The device supports bidirectional data transfer between two independent buses operating at different voltage levels within the 1.65V to 3.6V range. Packaged in a 24-pin VQFN (RHL) format measuring 5.5mm x 3.5mm with a maximum height of 0.9mm, it operates across a temperature range of -40°C to +85°C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Configurable dual-supply architecture enabling asynchronous communication between buses with independent voltage domains
• Integrated bus-hold circuitry to maintain stable logic states on floating lines without external pull-up or pull-down resistors
• Tri-state outputs that minimize power consumption and prevent bus contention during inactive periods

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous communication interfaces between microprocessors and memory modules operating at different supply voltages
• Bidirectional level shifting in embedded systems connecting low-voltage controllers to higher-voltage peripheral buses
• Data routing in portable electronics requiring efficient power management across multiple voltage rails

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the complete part number including the suffix RHLR to confirm the specific 24-VQFN package variant. Ensure compatibility with the target voltage domains by checking datasheet specifications for VCCA and VCCB ranges. Confirm RoHS compliance and moisture sensitivity level requirements for the intended manufacturing process.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring robust level translation with minimal external components. The integrated bus-hold feature simplifies PCB layout by eliminating the need for discrete resistors. Consider the AXC series performance characteristics if higher speed or lower power consumption is required compared to standard LVC or LVCH alternatives.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74AXC family of high-speed CMOS logic ICs. It serves as a specialized interface solution within Texas Instruments' broader portfolio of translation and transceiver products. The SN74AXCH8T245RHLR specifically addresses the need for compact, reliable voltage conversion in modern digital designs where space and power efficiency are critical constraints.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

The SN74LVCH8T245RHLR is a documented alternative within the same manufacturer's lineup. Verify functional equivalence regarding voltage ranges and pinout compatibility before substitution.