DS36276MX

Overview

The DS36276MX is a half-duplex RS-485 transceiver in an 8-pin SOIC package. It operates on a single 5V supply with a recommended range of 4.75V to 5.25V. The device supports data rates up to 10 Mb/s and features a wide bus common-mode voltage range from -7V to +12V. It includes a failsafe receiver that guarantees a HIGH output state during open, shorted, or terminated input conditions. The component functions within an operating temperature range of 0°C to +70°C.

Feature Summary

• Failsafe receiver ensures a known HIGH logic state when the differential bus inputs are floating, shorted, or terminated without active drivers.
• Compatible with TIA/EIA-485 (RS-485), TIA/EIA-422-A (RS-422-A), and CCITT Recommendation V.11 interface standards.
• Supports multipoint transmission with separate driver enable, receiver enable, and tri-stateable outputs for flexible system integration.

Applications

• Bi-directional differential bus communication systems
• Asynchronous controllers such as UARTs requiring guaranteed idle states
• Industrial multipoint networks utilizing RS-485 or RS-422 protocols

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm exact package type and temperature grade. Confirm RoHS compliance status directly with the supplier or datasheet revision history. Ensure the procurement channel provides traceability to authorized distribution channels to avoid counterfeit components.

Selection Notes

Select this component for applications requiring guaranteed receiver states during bus faults or idle conditions. Verify that the required operating temperature range aligns with the commercial 0°C to +70°C specification. Ensure the system power supply remains within the 4.75V to 5.25V limits to maintain electrical characteristics.

Part Context

This part belongs to the DS36276 family of failsafe multipoint transceivers originally developed by National Semiconductor and now managed by Texas Instruments. The 'M' suffix indicates the SOIC-8 package variant. The device serves as a robust interface solution for noisy industrial environments where bus integrity must be maintained during fault conditions.

Replacement Considerations

The datasheet lists pin-compatible alternatives including DS75176B, DS96176, DS3695, SN75176A, and SN75176B. Verify functional equivalence regarding failsafe behavior and electrical parameters before substitution.

FAQ

What is the receiver output state when the bus inputs are open?

The receiver output is guaranteed to be in a HIGH state when the bus inputs are open, shorted, or terminated without active drivers.

Does the DS36276MX support shutdown mode?

No, the device does not include a dedicated shutdown pin; it utilizes separate driver enable (DE) and receiver enable (RE) pins for control.

What is the maximum common-mode voltage range for the bus?

The device supports a wide bus common-mode voltage range from -7V to +12V.