Patent ID: 9128709
Filing Date: 2015-09-08
Classification: G06F,G06K,G11C,H03K

Abstract:
1. A memory card with a smart card function, comprising: a flash memory unit; data processing control unit, coupled to the flash memory unit, configured for controlling the flash memory unit and encrypting, decrypting and storing a smart card security data; and a power control unit, coupled to the data processing control unit and the flash memory unit and configured for receiving at least one of a first power input and a second power input, wherein the power control unit is further configured to select the first power input or the second power input and provide the selected one to the data processing control unit according to at least one control signal, wherein the first power input is divided, and the divided first power input is coupled to an output terminal of the power control unit and directly provided to the output terminal of the power control unit, wherein the memory card is read by a host system, and the data processing control unit comprises a memory control circuit and a smart card circuit, and the memory control circuit identifies whether an instruction and data received via the host system is a first instruction and data to be directly transmitted to the flash memory unit, or a second instruction and the smart card security data to be processed by the smart card circuit.