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ELM320 - OBD (PWM) TO RS232 INTERPRETER

Description

Since the 1996 model year, North American automobiles have been required to provide an OBD, or On Board Diagnostics, port for the connection of test equipment.

Features

  • such as RS232 handshaking, variable baud rates, etc. , have not been implemented. In addition, this device is only able to communicate using the 41.6KHz J1850 PWM protocol that is commonly used in Ford Motor Company vehicles. Features.
  • Low power CMOS design.
  • High current drive outputs.
  • Crystal controlled for accuracy.
  • Fully configurable using AT commands.
  • Standard ASCII character output.
  • High speed RS232 communications.
  • 41.6KHz J1850.

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Datasheet Details

Part number ELM320
Manufacturer ELM
File Size 69.05 KB
Description OBD (PWM) TO RS232 INTERPRETER
Datasheet download datasheet ELM320 Datasheet

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Full PDF Text Transcription

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ELM320 OBD (PWM) to RS232 Interpreter Description Since the 1996 model year, North American automobiles have been required to provide an OBD, or On Board Diagnostics, port for the connection of test equipment. Data is transferred serially between the vehicle and the external equipment using this connection, in a manner specified by the Society of Automotive Engineers (SAE) standards. In addition to operating at different voltage levels, these ports also use a data format that is not compatible with the standard used for personal computers. The ELM320 is an 8 pin integrated circuit that is able to change the data rate and reformat the OBD signals into easily recognized ASCII characters.
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