（高清正版）ISO 11898-2-2026 Road vehicles—Controller area

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Reference number

Road vehicles—Controller area

network(CAN)一

Part 2:

High-speed physical medium

attachment (PMA)sublayer

(

Cé

routiers—Gestionnaire de réseau de communication

Partie 2:Sous-couche de I'unité d'acces au supportàhaute vitesse

(PMA)

ISO 11898-2:2026(en)

International

Standard

ISO 11898-2

Fourth edition

2026-05

◎ISO 2026

iii

ISO11898-2:2026(en)

Contents Page

Foreword......................................................................................................................................................................iv

Introduction............................................................................................................................................................... V

1 Scope ............................................................................................................................................................... 1

2 Normative references ...................................................................................................................................

3 Terms and definitions .................................................................................................................................. 1

4 Abbreviated terms...........................................................................................................................................

5 HS-PMA function .......................................................................................................................................... 4

5.1 Base requirements............................................................................................................................... 4

5.2 HS-PMA test circuit............................................................................................................................. 4

5.3 Static parameter ...................................................................................................................................

5.3.1 Maximum ratings of VCAN_H,VCANLand VDiff.......................................................................

5.3.2 Recessive output characteristics, bus biasing active..........................................................5

5.3.3 Recessive output characteristics, bus biasing inactive ......................................................6

5.3.4 Dominant output characteristics ......................................................................................... 6

5.3.5 Maximum driver output curren ........................................................................................... 8

5.3.6 PMA static receiver input characteristics, bus biasing active and inactive...................... 8

5.3.7 Receiver input resistance ......................................................................................................9

5.3.8 Maximum leakage currents of CAN_Hand CAN............................................................... 10

5.4 Dynamic parameter............................................................................................................................10

5.4.1 Driver symmetry..................................................................................................................10

5.4.2 Optional transmit dominant timeout ............................................................................... 11

5.4.3 Transmitter and receiver timing behaviour.......................................................................11

5.5 Wake-up from low-power mode....................................................................................................... 15

5.5.1 Wake-up procedures............................................................................................................15

5.5.2 General requirement........................................................................................................... 15

5.5.3 Basic wake-up....................................................................................................................... 15

5.5.4 Via wake-up pattern...............................................................................................................15

5.5.5 Selective wake-up...................................................................................................................19

5.5.6 Bus biasing procedure....................................................................................................... 24

6 Conformance ............................................................................................................................................... 26

Annex A(normative) HS-PMA with SIC mode and FAST mode......................................................................... 27

Annex B(informative)ECU and network design..................................................................................................54

Annex C(informative)PN physical layer modes ............................................................................................... 60

Bibliography............................................................................................................................................................... 61

ISO11898-2:2026(en)

Foreword

ISO (the International Organization for Standardization)is a worldwide federation of national standards

bodies (ISO member bodies).The work of preparing International Standards is normally carried out through

ISO technical committees.Each member body interested in a subject for which a technical committee

has been established has the right to be represented on that committee.International organizations,

governmental and non-governmental,in liaison with ISO,also take partin the work.ISO collaborates closely

with the International Electrotechnical Commission(IEC)onall matters of electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are described

in the ISO/IEC Directives,Part 1.In particular,the different approval criteria needed for the different types

of ISO documents should be noted.This document was drafted in accordance with the editorial rules of the

ISO/IEC Directives,Part 2 (see www.iso.org/directives ).

ISO draws attention to the possibility that the implementation of this document may involve the use of (a)

patent(s).ISO takes no position concerning the evidence,validity or applicability of any claimed patent

rights in respect thereof.As of the date of publication of this document,ISO had not received notice of (a)

patent(s)which may be required to implement this document.However,implementers are cautioned that

this may not represent the latest information,which may be obtained from the patent database available at

www.iso.org/patents .ISO shall not be held responsible for identifying any or all such patent rights.

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards,the meaning of ISO specific terms and expressions

related to conformity assessment,as well as information about ISO's adherence to the World Trade

Organization(WTO)principles in the Technical Barriersto Trade(TBT),see www.iso.org/iso/foreword.html .

This document was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 31,Data

communication.

This fourth edition cancels and replaces the third edition (ISO 11898-2:2024),which has been technically

revised.

The main changes are as follows:

—bugs have been fixed,clarifications have been made and figures have been updated;

—the common mode range specification of the receiver has become extended towards+/-8V differential

(see Table 7).

A list ofall parts in the ISO 11898 series can be found on the ISO website.

Any feedback or questions on this document should be directed to the user's national standards body.A

complete listing of these bodies can be found at www.iso.org/members.html .

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ReferencenumberRoadvehicles—Controllerareanetwork(CAN)一Part2:High-speedphysicalmediumattachment(PMA)sublayerV(CéicNroutiers—GestionnairederéseaudecommunicationPartie2:Sous-couchedeI'unitéd'accesausupportàhautevitesse(PMA)ISO11898-2:2026(en)InternationalStandardISO11898-2Fourthedition2026-05◎ISO2026i...

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