ELM323 Datasheet - ELM

ELM323 OBD (ISO) to RS232 Interpreter

Since the 1996 model year, North American automobiles have been required to provide an OBD (On Board Diagnostics) data port for the connection of test equipment. This port is used to obtain emissions-related diagnostics information, and in some cases can also be used to obtain real-time vehicle oper.

ELM323 Features

* Low power CMOS design

* Crystal controlled for accuracy

* ISO 9141-2 and ISO 14230-4 protocols

* Configurable with AT commands

* Standard ASCII character output

* Four high current LED drive outputs Connection Diagram PDIP and SOIC (top view) VDD 1

ELM323_ELM.pdf