| 摘要 |
The invention relates to a data carrier, especially a chip card, with a first logical circuit (1) and at least one coil (2) that is connected to the first logical circuit (1) by a contactless interface. The contactless interface produces at least one power supply direct current (VDD, VSS), a clock signal and a data signal corresponding to the modulation of the induced signal on the basis of a signal induced in the coil (2). The data carrier also comprises a plurality of contacts (3) connected to the first logical circuit (1) to receive at least one power supply voltage, a clock signal and a data signal. The contact (VCC) of the power supply voltage is connected to the first logical circuit (1) by a switching element (5). Said switching element (5) is configured in such a way that it can be controlled by second logical circuit (4; 40) which is connected to the contact (CLK) of clock signal on the input side. |
