STN1110 Multiprotocol OBD II to UART Interpreter

Part No: MPST-CAN-Diagnostic-OBDII-2-UART

STN1110的交貨日期為3至4週。100顆以上，交貨日期為8至10週。

Product Overview

On-Board Diagnostics, Second Generation (OBD-II) is a set of standards for implementing a computer based system to control emissions from vehicles. It was first introduced in the United States in 1994, and became a requirement on all 1996 and newer US vehicles. Other countries, including Canada, parts of the European Union, Japan, Australia, and Brazil adopted similar legislation. A large portion of the modern vehicle fleet supports OBD-II or one of its regional flavors.

Among other things, OBD-II requires that each compliant vehicle be equipped with a standard diagnostic connector (DLC) and describes a standard way of communicating with the vehicle’s computer, also known as the ECU (Electronic Control Unit). A wealth of information can be obtained by tapping into the OBD bus, including the status of the malfunction indicator light (MIL), diagnostic trouble codes (DTCs), inspection and maintenance (I/M) information, freeze frames, VIN, hundreds of real-time parameters, and more.

STN1110 is an OBD to UART interpreter that can be used to convert messages between any of the OBD-II protocols currently in use, and UART. It is fully compatible with the de facto industry standard ELM327 command set. Based on a 16-bit processor core, the STN1110 offers more features and better performance than any other ELM327 compatible IC.

STN1110 is a multiprotocol OBD to UART interpreter ("OBD chip") that supports all OBD-II protocols, and is fully compatible with the ELM327 command set, while outperforming the original ELM327 IC in every category: stability, performance, features, and price.

Feature Highlights

• Stable, field-tested firmware
• Fully compatible with the ELM327 AT command set
• Extended ST command set
• UART interface (baud rates from 38 bps to 10 Mbps*)
• Secure bootloader for easy firmware updates
• Support for all legislated OBD-II protocols:
  • ISO 15765-4 (CAN)
  • ISO 14230-4 (Keyword Protocol 2000)
  • ISO 9141-2 (Asian, European, Chrysler vehicles)
  • SAE J1850 VPW (GM vehicles)
  • SAE J1850 PWM (Ford vehicles)
• Support for non-legislated OBD protocols:
  • ISO 15765
  • ISO 11898 (raw CAN)
• Support for the heavy-duty SAE J1939 OBD protocol
• Superior automatic protocol detection algorithm
• Large memory buffer
• Sophisticated PowerSave Sleep/Wakeup Triggers
• Available in SPDIP, SOIC and QFN-S packages
• RoHS compliant

*This is the maximum theoretical baud rate. The actual maximum baud rate is application-dependent and may be limited by driver hardware.

Stability

• Solid, field-tested software: STN1110 runs the same proven code that powers the popular OBDLink family of PC-based OBD interfaces. Thanks to its large user base, any problems are discovered and corrected quickly.
• Large OBD message buffer: STN1110 has over five times as much RAM as its nearest competitor, virtually eliminating BUFFER OVERFLOW errors.
• Automatic protocol detection algorithm: Its continuously fine-tuned to insure that STN1110 will connect to the widest array of vehicles, even those that do not fully conform to the OBD standard.

Typical Applications

• Vehicle telematics
• Fleet management and tracking applications
• Usage-based insurance (UBI)
• OBD data loggers
• Automotive diagnostic scan tools and code readers
• Digital dashboards

PowerSave Sleep/Wakeup Triggers