STN1110-I/MM - An Advanced Multiprotocol OBD to UART Interface Chip from Microchip Technology

The STN1110-I/MM is a versatile and cost-effective solution designed by Microchip Technology to address the needs of developers and manufacturers in the automotive diagnostics industry. This highly integrated chip offers a seamless interface between the On-Board Diagnostics (OBD) port of a vehicle and the application processor, typically through a UART connection. It is an ideal component for creating sophisticated diagnostic tools, telematics devices, and other automotive accessories that require reliable access to vehicle data.

Built to be compatible with all legislated OBD-II protocols, the STN1110 supports a wide range of protocols including KWP2000 (ISO 14230-4), ISO 9141-2, J1850 PWM, J1850 VPW, and CAN (ISO 15765-4). Its multi-protocol support ensures that it can interface with the vast majority of vehicles on the market, making it an extremely versatile choice for developers.

The STN1110-I/MM boasts a small form factor, offered in a 28-pin SSOP package, making it suitable for space-constrained applications. Despite its compact size, it does not compromise on performance. It features a secure bootloader, which allows for in-field firmware updates, ensuring that the chip can be updated with the latest features and improvements after deployment.

One of the key advantages of the STN1110 is its high baud rate support, which allows for faster data throughput, resulting in quicker diagnostics and more efficient data logging. Additionally, the chip includes support for advanced features such as automatic protocol detection, making it easy to use even for applications that need to interface with multiple vehicle types without manual intervention.

The STN1110-I/MM is not just powerful, but also energy-efficient. It includes power-saving modes that make it suitable for battery-operated devices. Overall, this chip is a robust, reliable, and flexible solution that can handle the demanding requirements of modern automotive diagnostics and telematics applications.

For developers and manufacturers looking for a high-quality, multi-protocol OBD-II interface chip, the STN1110-I/MM from Microchip Technology stands out as a top choice.