SN74LVC863ADBR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVC863ADBR is a 9-bit bus transceiver with 3-state outputs manufactured by Texas Instruments. It operates from a supply voltage range of 1.65 V to 3.6 V and features inputs that accept voltages up to 5.5 V, supporting mixed-mode signal operation in 5-V input/output environments with a 3.3-V VCC. The device provides asynchronous communication between data buses with maximum flexibility in timing control. It supports partial-power-down mode via Ioff circuitry and includes ESD protection exceeding JESD 22 specifications.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation on all ports for 5-V input/output voltage with 3.3-V VCC
• Ioff circuitry enables partial-power-down mode to prevent damaging current backflow
• Outputs remain in the high-impedance state during power-up and power-down conditions

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous communication between data buses
• Mixed 3.3-V/5-V system environment translation
• Partial-power-down applications requiring output disabling

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package type (DB) and temperature range (-40°C to 85°C) against project requirements. Confirm RoHS compliance status and lead finish details using the latest TI Package Option Addendum. Ensure ordering suffixes match the desired carrier format and check for any product life cycle changes or discontinuation notices before finalizing procurement plans.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring bidirectional data transfer between 1.65-V to 3.6-V buses with 5-V tolerant interfaces. The four independent output-enable inputs (OEAB1, OEAB2, OEBA1, OEBA2) provide flexible timing control for complex bus architectures. Consider the 24-pin SSOP package constraints for PCB layout and thermal management within the specified operating temperature range.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74LVC863A family of 9-bit bus transceivers. It is designed for low-voltage CMOS technology, offering high-speed performance with low power consumption. The part number suffix 'DB' indicates the 24-pin shrink small-outline package (SSOP). It serves as a critical interface component in digital logic circuits requiring level shifting and bus isolation.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Check the TI Package Option Addendum for alternative packages such as DW (SOIC), PW (TSSOP), DGV (TVSOP), or NS (SOP) which share the same SN74LVC863A functionality. Verify pinout compatibility and thermal characteristics when substituting different package types.