Testing and Research of Electrical Characteristics during Operation for High-Speed Interface of Contact IoT Card

This paper studies electrical characteristics’ test methods for high-speed interface of contact IoT card based on the latest national standard, which high speed interface supports 20MHz input clock and highest real-time transmission rate can be up to 2.5Mbps. This paper mainly analyzes and evaluates current consumption of the IoT card during ATR and current consumption of the IoT card during the session at maximum frequency of high speed IoT card based on different supply voltages.