Datasheet > ELM634SM

ELM634SM

更新时间： 2024-11-23 04:17:19

品牌	Logo	应用领域
ELM		监控
页数	文件大小	规格书
11页	81K
描述
9600bps miniLIN Monitor

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ELM634SM 数据手册

ELM634

9600bps miniLIN Monitor

Description

Features

LIN or ‘Local Interconnect Network’ is a low cost

• Low power CMOS design

and relatively simple networking system that is used

predominantly in the automotive world. Recently, it

has been gaining in popularity with proposals to use

it in major appliances as well. For more information,

visit the LIN web site (http://www.lin-subbus.de/).

• Crystal controlled for accuracy

• Standard ASCII character output

• Special power-on monitor mode

• Permanently set to a 9600bps LIN rate

• High speed (57600 baud) RS232 interface

• Works with LIN1.x and LIN2.0

The ELM634 is a monitoring device designed

for troubleshooting LIN bus systems. It is capable of

continually monitoring a LIN network, translating the

LIN messages to standard ASCII characters, and re-

transmitting them to an RS232 system (personal

computer or PDA) for display and possibly for

analysis. The synchronizing, data formatting, and

checksum calculations are all done for you by the

ELM634.

Connection Diagram

PDIP and SOIC

(top view)

The LIN specification has recently been updated

to revision 2.0, incorporating several improvements.

The ELM634 has been updated to be compatible

with this new specification, as well as the previous

ones.

VDD

XT1

VSS

LIN

Applications

XT2

RS232Tx

RS232Rx

Rxmode

• LIN logic probes

• Diagnostic PC interfaces

• Instruction triggered (breakpoint) devices

• Educational or training devices

3.58MHz

Block Diagram

XT1

XT2

Timing

RS232Tx

RS232

Interface

LIN

Interface

LIN

Formatting

and

RS232Rx

Control

Rxmode

ELM634DSB

Elm Electronics – Circuits for the Hobbyist

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