STN1170 Datasheet – Multiprotocol OBD to UART Interpreter – OBD

Part Number : STN1170

Function : OBD to UART interpreter IC

Package : 44 Pin TQFP ( STN1170-I/PT ) and 44 QFN ( STN1170-I/ML ) Type

Manufactures : OBD Solutions ( )


STN1170 Multiprotocol Interpreter

The STN1170 is an OBD to UART interpreter IC designed to provide bi-directional half-duplex communication with the vehicle’s On-Board Diagnostic system (OBD-II). It supports all legislated OBD-II protocols, as well as two proprietary networks: GM Single Wire CAN (GMLAN), and Ford Medium Speed CAN (MS CAN).



STN1170 datasheet pinout


Official Homepage :



1. Stable, field-tested firmware

2. Fully compatible with the ELM327 AT command set

3. Fully backwards compatible with the STN1110 command set

4. Extended ST command set

5. UART interface (baud rates from 38 bps to 10 Mbps)

6. Secure bootloader for easy firmware updates

7. Support for the heavy-duty SAE J1939 OBD protocol

8. Superior automatic protocol detection algorithm

9. Large message buffer

10. Sophisticated PowerSave Sleep/Wakeup Triggers

STN1170 Datasheet