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Diagram of the ISO 8583 field F45 Track 1 data structure

ISO 8583

ISO 8583 Field Descriptions (F45)

F45 (TRACK-1 DAT) carries the Track 1 data of the card in ISO 7813 format, including field separators and start and end sentinels but excluding the LRC character. It is 76 characters long.

EMV Application Version Number on card and terminal

Online & Authorization

Application Version Number

The Application Version Number is the version number of the application on the card. For example, the Visa VSDC application version number is 131, and the Mastercard M/Chip Lite version number is 2.