AND8361/D AMIS42700 – Interconnecting Multiple HSCAN Repeaters by Text/Rint Signals http://onsemi.com Prepared by: Peter Cox and Pavel Drazdi ON Semiconductor APPLICATION NOTE of the external logical network will grow as the number of repeaters increases (there will be as many AND gates as repeaters each of them having increasing number of inputs; e.g. for 4 repeaters, 4 AND gates would be needed, each of them with 3 inputs). The below picture shows how more than 2 repeaters AMIS42700 can be interconnected by their CMOS signals (Text and Rint pins). External logical gates (ANDs) are necessary. The AND gates ensure that a dominant (i.e. logical 0) signal is channelled to each repeater in case a dominant occurs on any other repeater. Thus the complexity © Semiconductor Components Industries, LLC, 2008 December, 2008 − Rev. 0 1 Publication Order Number: AND8361/D AND8361/D VBAT CAN BUS 1 5V−reg CD 100 nF CD 100 nF VCC Vref VCC 8 13 CANH1 EN1 10 12 EN2 Rx0 mC CAN BUS 2 CAN Tx0 con− Text troller Rint R LT 2 14 7 AMIS−42700 4 19 CANL1 60 W CANH2 R LT 3 9 5 18 6 15 16 17 CANL2 60 W GND GND + 5V CAN BUS 3 CAN BUS 4 CD 100 nF Vref VCC EN1 10 8 13 CANH1 12 R LT EN2 2 Rx0 7 Tx0 14 AMIS−42700 4 Text CANH2 19 R LT 3 Rint 60 W CANL1 9 18 6 15 16 17 5 CANL2 60 W GND + 5V CAN BUS 5 CAN BUS 6 CD 100 nF VCC Vref 8 13 CANH1 EN1 10 12 EN2 Rx0 Tx0 Text Rint R LT 2 14 7 AMIS−42700 4 19 CANL1 60 W CANH2 R LT 3 9 5 6 15 16 17 PC20071116.1 18 CANL2 60 W GND Figure 1. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax: 303−675−2176 or 800−344−3867 Toll Free USA/Canada Email: [email protected] N. American Technical Support: 800−282−9855 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: 421 33 790 2910 Japan Customer Focus Center Phone: 81−3−5773−3850 http://onsemi.com 2 ON Semiconductor Website: www.onsemi.com Order Literature: http://www.onsemi.com/orderlit For additional information, please contact your local Sales Representative AND8361/D