DS75176BMX/NOPB

Overview

The DS75176BMX/NOPB is a multipoint RS-485/RS-422 transceiver manufactured by Texas Instruments. It operates on 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 a bus common mode range from -7V to +12V, allowing for ±7V ground differences between devices. It includes thermal shutdown protection and high impedance states when disabled or powered off. The component is housed in an SOIC-8 package (Package D) and is designated as LIFEBUY status.

Feature Summary

• Supports multipoint communication on balanced transmission lines compliant with EIA RS-485 and compatible with RS-422 standards.
• Features TRI-STATE outputs over the entire common mode range to prevent bus contention and allow unused devices to be powered down.
• Includes thermal shutdown circuitry that forces driver outputs to a high impedance state during excessive power dissipation events.

Applications

• Multipoint data transmission systems requiring extended common mode ranges.
• Industrial control networks utilizing RS-485 differential signaling.
• Communication interfaces designed for environments with significant ground potential differences.

Procurement Notes

Verify the LIFEBUY status before finalizing designs, as this indicates the component is being discontinued. Confirm that the current stock or lifetime buy quantity meets long-term production requirements. Ensure the SOIC-8 package dimensions align with existing PCB footprints. Check for updated datasheet revisions to confirm electrical characteristics remain unchanged.

Selection Notes

Select the DS75176BMX/NOPB when a standard RS-485 transceiver with extended common mode capabilities is required. The 'M' suffix denotes the SOIC-8 package, while 'X' indicates tape and reel packaging. Verify that the operating temperature range of 0°C to 70°C suits the application environment, as industrial variants like the DS75176BT exist for wider temperature spans.

Part Context

This component belongs to the DS75176B family of multipoint transceivers. It is pin-out compatible with legacy parts such as the DS3695/A and SN75176A/B, facilitating direct replacements in older designs. The device combines a tri-state driver and receiver on a single +5V supply, offering a combined impedance of less than one RS-485 unit load to support up to 32 transceivers on the bus.

Replacement Considerations

The DS75176BTMX/NOPB serves as the industrial temperature grade equivalent (-40°C to +85°C). For surface-mount applications requiring similar functionality, verify compatibility with other SOIC-8 RS-485 transceivers from the same manufacturer family.