SN65HVD11HD

Drivers, Receivers, Transceivers Overview

The SN65HVD11HD is a high-temperature 3.3-V RS-485 transceiver designed for balanced transmission lines. It integrates a 3-state differential line driver and a differential input receiver, operating on a single power supply. The device meets ANSI TIA/EIA-485-A and ISO 8482:1993 standards, excluding thermal shutdown features. It supports bidirectional data communication on multipoint bus-transmission lines with active-high and active-low enables for direction control. The internal differential I/O bus port minimizes loading when disabled or powered down.

Drivers, Receivers, Transceivers Feature Summary

• Bus-pin ESD protection exceeding 16-kV Human-Body Model (HBM)
• 1/8 unit-load option enabling up to 256 nodes on the bus
• Short circuit protection from -7 V to 12 V on driver outputs
• Glitch-free power-up and power-down protection for hot-plugging

Drivers, Receivers, Transceivers Applications

• Multipoint bus-transmission lines requiring extreme temperature operation
• Bidirectional data communication systems using balanced transmission lines
• Industrial applications adhering to ANSI TIA/EIA-485-A standards

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'HD' against the official Texas Instruments datasheet to confirm it denotes the high-temperature variant without thermal shutdown. Ensure the component matches the SOIC-8 package dimensions and lead configuration. Confirm RoHS compliance status directly from the manufacturer's documentation before integration into designs requiring strict environmental regulations.

Drivers, Receivers, Transceivers Selection Notes

Select this component when extreme temperature ranges are required and thermal shutdown is undesirable. Compare the 1/8 unit-load capability against standard 1/4 unit-load devices to maximize node density. Verify that the 3.3-V supply voltage aligns with the system power architecture. Ensure the half-duplex operation mode fits the communication protocol requirements of the target application.

Drivers, Receivers, Transceivers Part Context

This part belongs to the SN65HVD11 family of RS-485 transceivers. It shares functional similarities with the SN65HVD11 but is optimized for high-temperature environments. The device serves as a monolithic integrated circuit for robust serial communication in harsh industrial conditions where standard commercial-grade components may fail.

Drivers, Receivers, Transceivers Replacement Considerations

The SN65HVD11DR is a standard commercial-grade alternative. The SN75HVD11DR offers similar functionality with different qualification levels. Verify pin compatibility and electrical specifications before substituting any other RS-485 transceiver in existing designs.