SN74LVC863APW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVC863APW 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 on all ports. The device allows data transmission between the A and B buses depending on logic levels at the output-enable (OEAB and OEBA) inputs. Key electrical parameters include a maximum propagation delay (tpd) of 6.1 ns at 3.3 V and typical output ground bounce (VOLP) of 2 V at VCC = 3.3 V. It supports partial-power-down mode via Ioff circuitry.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports asynchronous communication between data buses with flexible timing control
• Enables mixed-mode signal operation for translating between 3.3-V and 5-V system environments
• Provides high-impedance states during power-up and power-down conditions to prevent backflow current

Buffers, Drivers, Receivers, Transceivers Applications

• Asynchronous communication between data buses
• Mixed-mode signal translation in 3.3-V/5-V system environments
• Partial-power-down applications requiring Ioff support

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific package type and ordering suffix against the manufacturer's official documentation before procurement. Confirm the operating temperature range and moisture sensitivity level requirements match the target application environment. Ensure compatibility with existing board layouts regarding pin assignments and thermal characteristics.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring bidirectional data transfer between buses with different voltage levels. Consider the 1.65 V to 3.6 V supply range and 5.5 V input tolerance for mixed-voltage interfaces. Evaluate the propagation delay specifications relative to system clock speeds and ensure adequate drive strength for the connected loads.

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 and offers high-speed performance suitable for portable and battery-operated applications. The PW package indicates a TSSOP housing, providing a compact solution for surface-mount assembly.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVC863ADBR

Buffers, Drivers, Receivers, Transceivers FAQ

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

The device includes Ioff circuitry that disables the outputs when powered down, preventing damaging current backflow through the device.

What is the maximum input voltage supported by the device?

The inputs can accept voltages up to 5.5 V, allowing compatibility with 5-V devices even when the device is powered by lower voltages.