SN74LVCH8T245RHLR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVCH8T245RHLR is an 8-bit dual-supply bus transceiver manufactured by Texas Instruments. It operates within a voltage range of 1.65V to 5.5V and features configurable voltage translation between independent A and B ports. The device utilizes a 24-VQFN package with dimensions of 5.5x3.5mm. It supports bidirectional data transfer controlled by a single DIR input, ensuring asynchronous communication across different voltage domains.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Configurable voltage translation allows operation between any combination of 1.65V, 1.8V, 2.5V, 3.3V, and 5V power rails.
• Vcc isolation feature ensures both ports enter a high-impedance state if either Vcc input is grounded.
• IOFF support enables partial-power mode operation to prevent backflow current damage during system power-down.

Buffers, Drivers, Receivers, Transceivers Applications

• Mobile applications requiring low-voltage operation
• Handheld devices utilizing multiple voltage domains
• Consumer electronics with mixed-signal interfaces

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix RHLR corresponds to the 24-VQFN (5.5x3.5mm) package configuration. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the ordering part number matches the exact Texas Instruments manufacturer designation to avoid compatibility issues with PCB footprints.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing buses operating at different supply voltages within the 1.65V to 5.5V range. It is suitable for designs requiring compact surface-mount solutions with minimal pin count. Consider the propagation delay characteristics relative to your system clock speeds. Verify that the 3-state outputs meet the load requirements of your connected circuitry.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74LVCH8T245 family of translating transceivers. It shares functional similarities with other LVC series components but offers specific voltage translation capabilities. The RHLR suffix denotes the specific tape-and-reel packaging format and QFN footprint variant available from Texas Instruments.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVC8T245RHLR: Similar LVC family member with comparable functionality and package. SN74AVCH8T245RHLR: Higher-speed alternative in the same QFN package. SN74LVCH8T245DBQR: Pin-compatible SSOP variant offering similar electrical characteristics.