DS75176BM/NOPB

Overview

The DS75176BM/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 10 Mb/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 maintains high impedance to the bus when disabled or powered off. The component is housed in an 8-pin SOIC package and is rated for operation within a temperature range of 0°C to +70°C.

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 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

• Bidirectional data communication on multipoint bus transmission lines
• Industrial control systems requiring robust differential signaling
• Building automation networks

Procurement Notes

Verify the specific ordering suffix to confirm the package type and temperature rating. Confirm RoHS compliance status as indicated in the manufacturer's documentation. Check current production status, as this part may be subject to lifecycle changes such as lifetime buy periods. Ensure the selected variant matches the required operating temperature range for the intended application environment.

Selection Notes

Select the DS75176BM/NOPB for applications requiring half-duplex communication over long bus lines in noisy environments. Ensure the design accommodates the specified 4.75V to 5.25V supply voltage. Consider the thermal characteristics if multiple units are placed closely together on the board. Verify that the load impedance requirements align with the device's capability to support up to 32 transceivers on the bus.

Part Context

This component belongs to the DS75176B family of differential bus transceivers designed for multipoint data transmission. It is pin-out compatible with the DS3695/A and SN75176A/B series, facilitating direct replacements in existing designs. The device combines a 3-state differential line driver and a differential input receiver, optimized for minimum loading on the bus ports.

Replacement Considerations

The SN75176B is a pin-compatible alternative within the same functional family. Verify that the replacement meets the specific temperature and packaging requirements of the original design.