±36V Fault Tolerant, Single 3.3V CAN Bus Transceiver with Autobaud Loopback Mode


Supported Protocols CAN
Supply Voltage (Nom) (V) 3.3
HBM ESD (kV) 16
IEC 61000-4-2 Contact (±kV) 8
Package SOIC-8
Temperature Range (°C) -40 to 125
Data Rate (MAX) (Mbps) 1
Features High Speed, Slope Control, Autobaud Loop Back
Supply Voltage (V) 3.0 to 3.6
Bus Fault Voltage (V) -36 to 36
Common Mode Voltage (V) -25 to 25
Low Power Mode No
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The XR31235 is a controller area network (CAN) transceiver that conforms to the ISO 11898 standard. It provides transmit and receive signaling rates up to 1Mbps between a differential CAN bus and a CAN controller.

This device is designed with cross-wire protection, overvoltage protection up to ±36V, loss of ground protection, thermal shutdown protection and common-mode transient protection of ±100V making it ideal for harsh environments used in industrial, automotive, transportation and building automation applications.

The low power consumption of the 3.3V supply makes the XR31235 CAN transceiver desirable and fully interoperable with 5V supplied transceivers on the same bus. It also offers high speed and slope control modes of operation.


  • Single 3.3V operation
  • ±36V fault tolerance on analog bus pins
  • Extended -25V to +25V common mode operation
  • Robust ESD protection:
    • ±16kV HBM (bus pins)
    • ±8kV contact discharge (bus pins)
    • ±3kV HBM (non-bus pins)
  • Up to 1Mbps data rates
  • 11898-2 ISO compatible
  • GIFT/ICT compliant
  • 5V tolerant LVTTL I/O’s
  • 200μA low current standby mode
  • XR31233: Loopback mode
  • XR31234: Ultra low current sleep mode
    • 50nA typical
  • XR31235: Autobaud loopback mode

  • Industrial control systems
  • Motor and robotic control
  • Building and climate control (HVAC)
  • Automotive and transportation

Documentation & Design Tools

Type Title Version Date File Size
Data Sheets XR31233/34/35 Data Sheet 1A November 2017 1 MB
User Guides & Manuals XR3123x Evaluation Board User’s Manual November 2017 594.7 KB
Product Brochures Interface Brochure October 2019 1.3 MB
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Quality & RoHS

Part Number RoHS | Exempt RoHS Halogen Free REACH TSCA MSL Rating / Peak Reflow Package
XR31235ED N Y Y Y Y L1 / 260ᵒC NSOIC8
XR31235EDTR N Y Y Y Y L1 / 260ᵒC NSOIC8

Click on the links above to download the Certificate of Non-Use of Hazardous Substances.

Additional Quality Documentation may be available, please Contact Support.

Parts & Purchasing

Part Number Pkg Code Min Temp Max Temp Status Buy Now Order Samples
XR31235ED NSOIC8 -40 125 Active Order
XR31235EDTR NSOIC8 -40 125 Active Order
XR31235EDEVB Board -40 125 Active

Part Status Legend
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs.


Pkg Code Details Quantities Dimensions PDF
  • JEDEC Reference: MS-012
  • MSL Pb-Free: L1 @ 260ºC
  • MSL SnPb Eutectic: n/a
  • ThetaJA: 128.4ºC/W (std); 96.8ºC/W (fused)
  • Bulk Pack Style: Tube
  • Quantity per Bulk Pack: 98
  • Quantity per Reel: 2500
  • Quantity per Tube: 98
  • Quantity per Tray: n/a
  • Reel Size (Dia. x Width x Pitch): 330 x 12 x 8
  • Tape & Reel Unit Orientation: Quadrant 1
  • Dimensions: mm
  • Length: 4.90
  • Width: 3.90
  • Thickness: 1.75
  • Lead Pitch: 1.27

FAQs & Support

Search our list of FAQs for answers to common technical questions.
For material content, environmental, quality and reliability questions review the Quality tab or visit our Quality page.
For ordering information and general customer service visit our Contact Us page.

Submit a Technical Support Question As a New Question

Find the product page of the part that you want to get an evaluation board for and click on Parts & Purchasing. Example:


Find the icons under Buy Now or Order Samples:


Click on the Buy Now icon and see who has stock and click on the Buy button:


Alternatively, you can click on the Order Samples


If the icons are missing, then contact Customer Support.

The best way to determine this is to go to maxlinear.com and type the part into the search function. At or near the top of the results you should see something that looks like:

In this example, we looked for XRA1201. Click on part number header or on the link at the bottom of the result.  This brings you to the product page. For example:


Click on Parts & Purchasing, highlighted with the blue arrow above. The screen changes to:


Notice the status column and the “Show obsolete parts” link.  A legend tells you the definition of the different statuses. Click on the “Show obsolete parts” link to see EOL or OBS part numbers along with the Active part numbers, the legend still present:


Another method to find out if a part is OBS or EOL is to click on SUPPORT at the top:


And then Product Change Notifications:


Type the part into the search, and click on one of the part numbers from the drop down menu. Then you can look for the Product Discontinuation Notice, which generally is at the top of the list, for example:


If you see this, it tells you that this particular orderable part has been discontinued and when the last order date is, or was. If you click on the file, then you can view the notice we sent about this if you purchased the part in the recent past. It may also advise of a replacement part. When an orderable part first becomes discontinued, Product Discontinuation Notices are sent are sent to those who have purchased the parts in the recent past, if purchased directly, with a dated opportunity to place a last order.