DS36C279M/NOPB

Overview

The DS36C279M/NOPB is a low-power RS-485 transceiver manufactured by Texas Instruments in an 8-pin SOIC package. It supports data rates up to 10 Mb/s with a supply voltage range of 4.75 V to 5.25 V. The device features automatic sensing sleep mode, reducing current consumption from a maximum of 500 μA to 10 μA when disabled. It provides a wide common-mode range of −7 V to +12 V and includes thermal shutdown and fail-safe receiver circuitry.

Feature Summary

• Automatic sensing sleep mode reduces power consumption significantly during idle periods
• Built-in thermal shutdown protects the device from excessive power dissipation
• Fail-safe receiver ensures a high output state when inputs are left open

Applications

• Multipoint data transmission systems compliant with RS-485 standards
• Power-conscious industrial applications requiring extended device disable periods
• Bus interfaces supporting up to 128 nodes using quarter unit load configuration

Procurement Notes

Verify the specific suffix 'M' corresponds to the SOIC-8 package variant. Confirm that the NRND status aligns with long-term availability requirements for your design lifecycle. Ensure the operating temperature range meets your environmental specifications before finalizing procurement.

Selection Notes

Select this component for designs requiring low standby power and robust fault protection. Verify compatibility with existing bus topology node counts. Consider the thermal characteristics if operating near maximum ambient temperatures or under heavy load conditions.

Part Context

This part belongs to the DS36C27x family of low-power RS-485 transceivers. It shares functional similarities with other devices in the series but offers specific sleep mode capabilities. The 'M' suffix indicates the SOIC package option within the broader product line.

Replacement Considerations

Datasheet lists LTC485, MAX485, DS75176, and DS3695 as drop-in replacements. Verify pinout and electrical parameter compatibility before substitution.