ELM327P datasheet(74/76 Pages) ELM

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ELM327

ELM327DSH

Elm Electronics – Circuits for the Hobbyist

www.elmelectronics.com

Error Messages and Alerts (continued)

message, but it was only displayed when a protocol

initiation or search was interrupted. As of version 1.4,

the message is printed any time that an OBD task is

interrupted.

UNABLE TO CONNECT

The ELM327 has tried all of the available

protocols, and could not detect a compatible one. This

could be because your vehicle uses an unsupported

protocol, or could be as simple as forgetting to turn the

ignition key on. Check all of your connections, and the

ignition, then try the command again.

Outline Diagrams

The diagrams at the right show the two package

styles that the ELM327 is available in.

The first shows our ELM327P product in what is

commonly called a ‘300 mil skinny DIP package’. It is

used for through hole applications.

The ELM327SM package shown at right is also

sometimes referred to as 300 mil, and is often called

an SOIC package. We have chosen to simply refer to

it as an SM (surface mount) package.

The drawings shown here provide the basic

dimensions for these ICs only. Please refer to the

following Microchip Technology Inc. documentation for

more detailed information:

• Microchip Packaging Specification, document name

en012702.pdf (7.5MB). At the www.microchip.com

home page, click on Packaging Specifications, or go

to www.microchip.com/packaging

• PIC18F2480/2580/4480/4580 Data Sheet, document

name 39637d.pdf (8.0MB). At the www.microchip.com

home page, click on Data Sheets, then search for

18F2480.

Every effort is made to verify the accuracy of information provided in this document, but no representation or warranty can be

given and no liability assumed by Elm Electronics with respect to the accuracy and/or use of any products or information

described in this document. Elm Electronics will not be responsible for any patent infringements arising from the use of these

products or information, and does not authorize or warrant the use of any Elm Electronics product in life support devices and/or

systems. Elm Electronics reserves the right to make changes to the device(s) described in this document in order to improve

reliability, function, or design.

Note: all dimensions shown are in mm.

2.54

ELM327P

max

10.92

7.24

7.50

ELM327SM

10.30

1.27

ELM327P Datasheet(PDF) 74 Page - ELM Electronics

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