Multipurpose contactless card supporting large amount payment and online recharge and application method thereof
A non-contact card, multi-purpose technology, applied in the direction of prepayment scheme, payment system structure, payment scheme/model, etc., can solve the problems of large size, long time, no input and output ports, etc.
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[0089] The specific embodiment of the multi-purpose non-contact card that supports large amount of payment and online recharging is according to the attached figure 1 The described internal structure design mainly includes the hardware communication interface J1 corresponding to the TF (MicroSD) card slot, the microprocessor U1 (SK6612XXSC) containing the central processing unit CPU, the program memory ROM and the random access memory RAM, and saving user data E 2 It is composed of PROM memory U2 (SST39LF512), encryption unit U3 (DM2016) for encryption or decryption operation, and radio frequency interface circuit conforming to ISO / IEC144493 or ISO / IEC15693 standard. The hardware communication interface corresponding to the TF (MicroSD) card slot includes: 0th to 3rd data interface DAT0~3, CMD command communication interface, CLK clock input interface, power supply positive VCC interface and ground GND interface. The radio frequency interface circuit conforming to ISO / IEC1444...
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