Integrated circuit having a plurality of interfaces and integrated circuit card having the same

摘要

An integrated circuit supporting a first interface and a second interface and an integrated circuit card having the same includes the first interface capable of communicating with a first host, the second interface communicating with a second host, and a control block. The control block activates the second interface when a voltage level of a contact that the second host can be connected is in a first state at a first-occurring timepoint between a reference timepoint and a state transition timepoint of an external reset signal output from the first host, and deactivates the second interface when the voltage level of the contact is in a second state. The integrated circuit card has the integrated circuit built in.