7816-12 Cards with contacts -- USB electrical interface and operating procedures

Created in 2005.

From its abstract, it specifies the operating conditions of an integrated circuit card that provides a USB interface. An integrated circuit card with a USB interface is named USB-ICC.

ISO/IEC 7816-12:2005 specifies:
the electrical conditions when a USB-ICC is operated by an interface device - for those contact fields that are not used, when the USB interface is applied;
the USB standard descriptors and the USB-ICC class specific descriptor;
the data transfer between host and USB-ICC using bulk transfers or control transfers;
the control transfers which allow two different protocols named version A and version B;
the (optional) interrupt transfers to indicate asynchronous events;
status and error conditions.