SN74LVC861ADW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVC861ADW is a 10-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 asynchronous data transmission between the A and B buses depending on logic levels at the OEAB and OEBA control inputs. It includes Ioff circuitry for partial-power-down mode support and latch-up performance exceeding 250 mA per JESD 17. The maximum propagation delay is 6.4 ns at 3.3 V.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation allowing 5-V input/output voltage compatibility with 3.3-V VCC
• Ioff circuitry disables outputs to prevent damaging current backflow during power-down
• Provides asynchronous communication capability between data buses via flexible timing control

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 against the datasheet, as the DW suffix indicates an SOIC package. Confirm RoHS compliance status and lead finish details using the official TI ordering information or package addendum. Ensure the operating temperature range meets the application requirements before finalizing procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when interfacing 10-bit buses requiring bidirectional data transfer in mixed-voltage systems. The LVC series offers low power consumption suitable for battery-operated devices. Verify that the required propagation delay and output drive capabilities align with the system timing constraints.

Buffers, Drivers, Receivers, Transceivers Part Context

This device belongs to the SN74LVC861A family of 10-bit bus transceivers. It is designed for low-voltage CMOS technology, providing high-speed performance while maintaining low power dissipation. The part is widely used in embedded systems requiring reliable data bus isolation and translation.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Check for direct pin-compatible alternatives within the same LVC family or other Texas Instruments bus transceivers. Ensure any substitute maintains the 10-bit width and 3-state output configuration. Verify voltage tolerance and package dimensions match the existing design.

Buffers, Drivers, Receivers, Transceivers FAQ

Can the SN74LVC861ADW interface 5-V signals with 3.3-V supplies?

Yes, the device supports mixed-mode signal operation, allowing 5-V input/output voltage compatibility with a 3.3-V VCC.

What is the function of the Ioff circuitry in this device?

The Ioff circuitry ensures the outputs are disabled when the device is powered down, preventing damaging current backflow through the device.