SN74LVC863ADWR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVC863ADWR 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 includes Ioff circuitry for partial-power-down mode operation and offers ESD protection exceeding JESD 22 specifications.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation on all ports, allowing 5-V input/output voltage compatibility with 3.3-V VCC systems.
• Includes Ioff circuitry to disable outputs during power-down, preventing damaging current backflow through the device.
• Outputs remain in a high-impedance state during power-up and power-down conditions to ensure system safety.

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous communication between data buses
• Mixed 3.3-V/5-V system environments
• Partial-power-down applications

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package type and tape-and-reel quantity against the official TI ordering information before procurement. Confirm that the component status aligns with project requirements, as availability may change. Ensure that design-in validation accounts for the recommended operating conditions and absolute maximum ratings specified in the datasheet to guarantee reliable performance.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring 9-bit bidirectional data transfer with 3-state outputs. It is suitable for applications needing mixed-voltage interface capabilities between 3.3-V and 5-V domains. Consider the -40°C to 85°C operating temperature range and the specific pinout configuration for the SOIC or TSSOP packages when evaluating board layout constraints.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LVC863A family of 9-bit bus transceivers. The 'DW' suffix indicates an SOIC package, while 'PW' denotes a TSSOP package. The 'R' suffix signifies that the device is supplied in a tape-and-reel format. These variations share identical electrical characteristics and functionality but differ in physical packaging dimensions and handling requirements.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVC863ADW (SOIC tube)

Buffers, Drivers, Receivers, Transceivers FAQ

How does the device handle partial-power-down scenarios?

The SN74LVC863ADWR includes dedicated Ioff circuitry that automatically disables the outputs when the device is powered down. This feature prevents damaging current backflow through the device into the power supply rails.

Can this transceiver interface directly with 5-V logic devices?

Yes, the inputs are designed to accept voltages up to 5.5 V. This allows the device to be used as a translator in mixed 3.3-V/5-V system environments, facilitating communication between different voltage domains.