Maker : OZEN
Part No. : OE90C2620

  Datasheet PDF : OE90C2620.pdf
  Cross Reference : OE90C2620 Cross Reference
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Shortcut : OE90C2620 

Product Information

www.DataSheet4U.com mOByDiC 2620 version 1.02 released 12.01.2006 Features • • • • • • • • Compatible with FIAT Motors RS232 Communication at 9600 Baud All Diagnostic modes supported K-Line diagnostic Support Airbag and ABS K-Lines standard Listening possible C-CAN and B-CAN in v2.0 Read clear manufacturer DTCs Partially hardware compatible to 2600 FIAT to RS232 gateway Description OE90C2620 is specially designed for FIAT motor company cars. This chip allows to build a complete diagnostic system using a PC or directly in small device with LCD display. Some other brand like Alfa and Lancia can be tested. All diagnostic mode are implemented . Some commands are implemented to allow direct access to different ECUs. This chip is partially plug play compatible with mobydic2600 Hardware and PCB. OE90C2620 This chip is partially compatible to 2600. İf fitted on a 2600 board this chip will works on Kline diagnosis ( pin 7 ) and it can handle High speed CAN Messaging. CLKOUT RxCAN DOWNL 27 VCC GND TxCAN LED 1 TxK3 NC BAUDIn NC NC 28 26 25 24 4 3 2 1 TXK1 NC 5 6 7 8 9 10 11 12 13 14 15 16 17 18 RxK2 NC TxK2 RXK1 NC LED2 RESET OE90C2620 PLCC-28 23 22 21 20 19 RXD TXD XTAL2 XTAL1 RxK3 VCC GND 1 www.DataSheet4U.com mOByDiC 2620 version 1.02 released 12.01.2006 Pin description Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 Pin Name NC GND VCC RXCAN TXCAN LED1 TxK3 NC BAUDIN NC NC RxK3 TXD RXD XTAL2 XTAL1 VCC GND RESET LED2 NC RXK1 Txk2 NC RXK2 TxK1 DOWNLD CLKOUT Type Description Ground Supply voltage B-CAN BUS input B-CAN BUS output Connected ( Main ECU based ) LED max 5 mA for low current LED Airbag K-line output RS232 Baudrate input clock I O O O I I I I I I/O O I I O O I O Airbag K-line input RS232 output RS232 input 16 Mhz crystal input 16 MHz crystal input Supply voltage Ground A high level on this pin during 2 machine cycles while the oscillator is running resets the device. LED output to indicate the frames exchange K-line diagnostic input K-line output to ABS K-Line input from ABS K-Line diagnostic output A low on this pin puts the device in download mode Clock output for RS232 baud rate in 2 www.DataSheet4U.com mOByDiC 2620 version 1.02 released 12.01.2006 Hardware application schematic VCC VCC GREEN 13 8 11 10 10uF + 1 3 4 5 2 6 R1IN R2IN T1IN T2IN C1+ C1C2+ C2V+ VR1OUT R2OUT T1OUT T2OUT 12 9 14 7 1k YELLOW 1 6 2 7 3 8 4 9 5 DB9 13 14 11 TXD RXD NC LED1 LED2 SYSCLK CLKIN TxK3 NC TxK1 RxK1 TxK2 RxK3 NC RxK2 DOWNLD GND GND NC 6 20 28 9 7 8 26 22 23 12 24 25 27 2 18 10 21 1k TxK3 TxK1 RxK1 TxK2 Rxk3 RxK2 1 MAX232 RXCAN TXCAN 4 5 NC RXCAN TXCAN + 10uF + 10uF + VCC 10uF 15 16M 16 19 27pF 27pF 1uF + 3 17 XTAL2 XTAL1 RST JP1 DJMP VCC NC VCC OE90C2620 VCC Typical connection of OE90C2620 VBAT 510 4K7 TXK1 2N2222 1 3 5 7 9 11 13 15 2 4 6 8 10 12 14 16 OBD CONNECTOR VBAT 3 10K RXK1 2 + 12 5 4 LM339 10K VREF 10K VREF Typical connection of K-Line 3 www.DataSheet4U.com mOByDiC 2620 version 1.02 released 12.01.2006 VBAT 510 4K7 TXK2 2N2222 1 3 5 7 9 11 13 15 2 4 6 8 10 12 14 16 OBD CONNECTOR 3 RXK2 14 + 12 9 8 LM339 10K VREF Typical connection of Airbag K-Line VBAT 510 4K7 TXK3 2N2222 1 3 5 7 9 11 13 15 2 4 6 8 10 12 14 16 OBD CONNECTOR 3 RXK3 13 + 12 11 10 LM339 10K VREF Typical connection of ABS K-Line 4 www.DataSheet4U.com mOByDiC 2620 version 1.02 released 12.01.2006 VCC 2 4 6 8 10 12 14 16 1 3 5 7 9 11 13 15 5 -VCC GND TXCAN RXCAN 1 4 3 TXD CAN_H RXD CAN_L REF slop 7 6 8 47k 100 100 OBD CONN. PCA82C251 2 560pF 560pF Typical connection of CAN 5 www.DataSheet4U.com mOByDiC 2620 version 1.02 released 12.01.2006 FIAT SPECIFICATIONS K-Line diagnosis on pin 7 The implementation of fiat KWP2000 protocol is based on fiat document 07223. The structure of the messages is desrcibed in the document ISO14230-2. The ECU accepts both 5 baud and Fast initialization. The baud rate used...

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