SB nº 202: Contact Card – Transients on Current drawn from VCC

EMV^® Specification Bulletin No. 202 First Edition August 2018 Contact Card – Transients on Current drawn from VCC This Specification Bulletin adds requirements to limit transients (spikes) on current drawn from VCC.

Applicability

This Specification Bulletin applies to:

• EMV Integrated Circuit Card Specifications for Payment Systems, Book 1 - Application Independent ICC to Terminal Interface Requirements, Version 4.3, November 2011.

Related Documents

• None

Description

This bulletin defines the measurement method for the Icc current by averaging the value of the current (over 1 ms) in the Table 7 – Section 5.3.6 to align with ISO/IEC 7816-3. In order to ensure interoperability this bulletin also places a restriction on the transients on Icc that an ICC is permitted to cause to ensure that they remain below the limits a terminal is required to accommodate.

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Specification Change Change Table 7 and add text and Table 7a below Table 7 as follows: Symbol Conditions Minimum Maximum Unit VCC Class A 4.50 5.50 V Class B 2.70 3.30 Class C 1.62 1.98 ICC Class A Class B Class C 50 mA 50 30 The maximum current consumptions shown apply when operating at any frequency within the range specified in section 5.3.4. The current value is averaged over 1 ms. Table 7: Classes of Operation new card values from January 2014; see Table 1. While the supply power is maintained within the voltage range defined in Table 7, the Icc current transients shall not exceed the values defined in Table 7a. Class Maximum charge a Maximum duration Maximum variation b of ICC A 20 nA.s 400 ns 100 mA B 10 nA.s 400 ns 50 mA C 6 nA.s 400 ns 30 mA a The maximum charge is half the product of the maximum duration and the maximum variation. b The maximum variation is the difference between the peak transient Icc current and the average value of the Icc current over 1 ms measured for the ICC at the time of the transient. Table 7a — Transients on ICC current

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Legal Notice

The EMV^® Specifications are provided "AS IS" without warranties of any kind, and EMVCo neither assumes nor accepts any liability for any errors or omissions contained in these Specifications. EMVCO DISCLAIMS ALL REPRESENTATIONS AND WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT, AS TO THESE SPECIFICATIONS. EMVCo makes no representations or warranties with respect to intellectual property rights of any third parties in or in relation to the Specifications. EMVCo undertakes no responsibility to determine whether any implementation of the EMV^® Specifications may violate, infringe, or otherwise exercise the patent, copyright, trademark, trade secret, know-how, or other intellectual property rights of third parties, and thus any person who implements any part of the EMV^® Specifications should consult an intellectual property attorney before any such implementation. Without limiting the foregoing, the Specifications may provide for the use of public key encryption and other technology, which may be the subject matter of patents in several countries. Any party seeking to implement these Specifications is solely responsible for determining whether its activities require a license to any such technology, including for patents on public key encryption technology. EMVCo shall not be liable under any theory for any party’s infringement of any intellectual property rights in connection with the EMV^® Specifications

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