DS75176BMX

Overview

The DS75176BMX is a multipoint RS-485/RS-422 transceiver manufactured by Texas Instruments. It operates from a single +5V supply with a voltage range of 4.75V to 5.25V. The device supports data rates up to 10Mb/s and features driver propagation delays of 22ns typical. It provides a bus common mode range of -7V to +12V, allowing for ±7V ground differences between devices. The SOIC-8 package contains one driver and one receiver. Combined impedance is less than one RS485 unit load, supporting up to 32 transceivers on the bus.

Feature Summary

• Supports multipoint communication on balanced transmission lines compatible with EIA RS-485 and RS-422 standards.
• Features TRI-STATE outputs over the entire common mode range to handle bus contention or fault situations.
• Includes thermal shutdown protection that forces driver outputs into a high impedance state during excessive power dissipation.
• Maintains high impedance to the bus when the driver is disabled or power is off across the full common mode range.

Applications

• Bidirectional data communication on multipoint bus transmission lines
• Balanced transmission line applications requiring extended common mode range
• Industrial control systems utilizing RS-485 or RS-422 protocols

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation before procurement. The 'X' suffix indicates tape and reel packaging. Confirm the active status and lifetime buy availability directly with Texas Instruments or authorized distributors, as production status can change without notice. Ensure the component meets the required environmental specifications for the intended application.

Selection Notes

Select this component for designs requiring half-duplex communication with a single +5V supply. Verify that the operating temperature range of 0°C to 70°C aligns with the system environment. Consider the SOIC-8 package dimensions for board space constraints. Ensure the bus topology supports the specified unit load limit for reliable signal integrity.

Part Context

This part belongs to the DS75176B family of multipoint transceivers. It is pin-out compatible with the DS3695/A and SN75176A/B series. The device integrates a differential line driver and receiver designed for noisy environments. It serves as a standard interface solution for legacy industrial communication buses requiring robust fault protection.

Replacement Considerations

Pin-compatible alternatives include the SN75176BDR and SN75176BD. Verify electrical characteristics and package dimensions match the design requirements. Check for updated RoHS compliance status if transitioning from older manufacturing runs.