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ELM323 Datasheet Obd (iso) To Rs232 Interpreter

Manufacturer: ELM

Overview: ELM323 OBD (ISO) to RS232 Interpreter.

Datasheet Details

Part number ELM323
Manufacturer ELM
File Size 86.59 KB
Description OBD (ISO) to RS232 Interpreter
Datasheet ELM323_ELM.pdf

General Description

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 operating parameters.

The ELM323 is a 14 pin integrated circuit that, with only a few external components, is able to convert between the OBD data format and the standard RS232 serial data format.

Key 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 XT1 2 XT2 3 LFmode 4 RS232Rx 5 RS232Tx 6 RSRx 7 14 VSS 13 OBDK 12 OBDL 11 OBDIn 10 OBDTx 9 OBDRx 8 RSTx Block Diagram LFmode 4 RS232Rx 5 RS232Tx 6 RS232 Interface 3.58 MHz XT1 2 3 XT2 Timing a.

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ELM323 Distributor