DS75176BTMX/NOPB

Overview

The DS75176BTMX/NOPB is a multipoint RS-485/RS-422 transceiver manufactured by Texas Instruments. It operates on a single +5V supply and supports data rates up to 10 Mb/s. The device features TRI-STATE outputs with a bus common mode range of -7V to +12V, allowing for ±7V ground differences between devices. It includes thermal shutdown protection and high impedance to the bus when powered off. The component is housed in an SOIC-8 package and is rated for an operating temperature range of -40°C to +85°C.

Feature Summary

• Supports multipoint communication on balanced transmission lines compatible with EIA RS-485 and RS-422 standards.
• Features TRI-STATE driver and receiver outputs that enter a high-impedance state during fault conditions or power-off.
• Includes thermal shutdown circuitry to protect against excessive power dissipation caused by bus contention.

Applications

• Multipoint data transmission on long bus lines in noisy environments
• Industrial control systems requiring robust differential signaling
• Building automation networks utilizing RS-485 protocols

Procurement Notes

Verify the specific ordering suffix to confirm the package type and temperature rating. Confirm RoHS compliance status as indicated by the NOPB designation. Check current lifecycle status, as this part may be subject to lifetime buy periods. Ensure the supplier provides valid traceability documentation for production data.

Selection Notes

Select the DS75176BTMX/NOPB for applications requiring extended industrial temperature ranges compared to the standard DS75176B. Verify that the system voltage remains within the 4.75V to 5.25V range. Consider the SOIC-8 surface mount package for board space constraints. Ensure the design accommodates the required common mode voltage limits for the specific bus topology.

Part Context

This component belongs to the DS75176B family of differential bus transceivers. It shares pinout compatibility with the SN75176A/B and DS3695/A series. The BT suffix specifically denotes the extended temperature grade variant (-40°C to +85°C), distinguishing it from the commercial grade B version (0°C to +70°C).

Replacement Considerations

Direct pin-compatible alternatives include the SN75176BDWR and SN75176BDR. Verify that substitute parts meet the same extended temperature requirements if operating outside the commercial range. Check for updates in packaging options or lead-free specifications.