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ELM329LP Datasheet(PDF) 1 Page - ELM Electronics |
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ELM329LP Datasheet(HTML) 1 Page - ELM Electronics |
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1 / 87 page  ELM329L Elm Electronics – Circuits for the Hobbyist www.elmelectronics.com CAN Interpreter The ELM329L is a low voltage version of our popular ELM329 integrated circuit. It supports all of the features of our current ELM329 IC, and only differs physically in how pin 6 is used. The following pages discuss the ELM329L in detail, how to use it and how to configure it, as well as providing some background information on the protocols that are supported. There are also schematic diagrams and tips to help you to interface to microprocessors, construct a basic scan tool, and to use the low power mode. Because of the similarity with the ELM329, much of this data sheet has been copied from the ELM329 data sheet. Throughout this document, we will use the term ‘ELM329’ to refer to either the ELM329 or the ELM329L. If there is something different between the two, we will be specific as to which it applies to. • Works with a 2.0V to 5.5V supply • Universal serial (RS232) interface • Fully configurable with AT commands • Compatible with the popular ELM327 • Low power CMOS design • Diagnostic trouble code readers • Automotive scan tools • Teaching aids Description Applications Features 1 of 87 ELM329L DSA Connection Diagram PDIP and SOIC (top view) OBD Tx LED OBD Rx LED RS232 Tx LED RS232 Rx LED CAN Rx CAN Tx M0 M1 VDD RS232 Rx RS232 Tx PwrCtrl / Busy MCLR Memory Filter Cap LFmode Active LED XT1 XT2 VSS In1 In2 Control CAN Monitor Vmeasure VSS IgnMon / RTS PwrCtrl Block Diagram Protocol Interpreter RS232 Interface CAN Interface 4 15 16 14 11 LFmode 7 18 17 RS232Tx RS232Rx status LEDs 23 24 CAN Rx CAN Tx 22 21 M0 M1 5 12 13 In1 In2 Control 2 Vmeasure I/O Module 4.00 MHz 9 10 Control Module 6 Filter Cap 1 MCLR 20 VDD 8 VSS 19 VSS Memory 3 26 27 25 28 ISO 15765-4 SAE J1939 ISO 11898 PwrCtrl PwrCtrl / Busy IgnMon / RTS CAN Monitor |
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Similar Description - ELM329LP |
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