CN213399650U - Multi-chip integrated card - Google Patents
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- CN213399650U CN213399650U CN202022440752.3U CN202022440752U CN213399650U CN 213399650 U CN213399650 U CN 213399650U CN 202022440752 U CN202022440752 U CN 202022440752U CN 213399650 U CN213399650 U CN 213399650U
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Abstract
The utility model provides a multicore piece integrated card, include: a substrate; an encrypted memory card and an intelligent card are arranged in the substrate; the encrypted memory card is physically isolated from the smart card; the surface of the substrate is provided with an SD card interface and an SIM card interface; the SD card interface is connected with the encrypted memory card through an SD card interface; the SIM card interface with the smart card passes through the SIM card interface connection the utility model discloses portable easy change both can be used to extension mobile terminal storage space, can regard as the external hardware realization equipment of functions such as digital certificate storage, key storage, data encryption again, still can satisfy SIM card user's telecommunications user demand simultaneously, effectively promotes the user to the experience degree at terminal.
Description
Technical Field
The utility model relates to a communication smart card communication field, in particular to multi-chip integrated card.
Background
With the rapid development of the internet and mobile communication technology, mobile terminals such as mobile phones and tablets become indispensable devices in daily life and work of people, but the development of the technology brings convenience to people and brings risks and threats to people. In order to solve the security problems of identity authentication, non-repudiation and the like in a virtual network, a Public Key Infrastructure (PKI) system is produced and matures day by day, an encryption technology taking a digital certificate as a core is gradually kept away from network transactions, and confidentiality, integrity, authenticity and non-repudiation of information are ensured by encrypting and decrypting the information and signing and checking the information, so that the security of network application is ensured.
The MicroSD encryption memory card is used as a hardware carrier of a digital certificate in a PKI (public key infrastructure) system, can be used on mobile terminals such as mobile phones and tablets without a driver, can be used for expanding the storage space of the mobile terminals, can be used as external hardware implementation equipment with functions of digital certificate storage, key storage, data encryption and the like, is safe and convenient, and is widely applied. However, most mobile phones in the market currently only support one SIM card slot and one MicroSD/SIM two-in-one card slot, and for users using dual SIM cards, the encrypted memory card has to be abandoned. In order to solve the above problems, there are two main solutions:
in the first scheme, a double SIM card slot and a MicroSD card slot are used; the card holds in the palm becomes three draw-in grooves by two draw-in grooves before, and length increases, need occupy more spaces on the mobile terminal mainboard, influences mobile terminal's exterior design, and adopts the mobile terminal of this scheme less on the market.
A MicroSD and SIM double-interface memory card; the existing MicroSD and SIM double-interface memory card on the market only realizes the function of combining MicroSD storage and SIM into one, wherein only one security chip is provided, and data isolation is difficult to realize in the same security chip for electronic government affair application and operators. Meanwhile, the communication performance of the security chip is poor, and the requirements of high-performance encryption and decryption in electronic government affairs, industrial control security application and Internet of things security application are not met.
SUMMERY OF THE UTILITY MODEL
The utility model provides a multicore piece integrated card for realize both can be used to extension mobile terminal storage space, can regard as the external hardware realization equipment of functions such as digital certificate storage, key storage, data encryption again, still can satisfy SIM card user's telecommunication user demand simultaneously, show to promote the user to experience the degree.
A multi-chip integrated card, comprising:
a substrate;
an encrypted memory card and an intelligent card are arranged in the substrate;
the encrypted memory card is physically isolated from the smart card;
the surface of the substrate is provided with an SD card interface and an SIM card interface;
the SD card interface is connected with the encrypted memory card through an SD card interface;
the SIM card interface is connected with the intelligent card through an SIM card interface.
As an embodiment of the present invention, the SD card interface is provided with an SD contact;
the SIM card interface is provided with an SIM contact;
the SIM card interface and the SD card interface are independent.
As an embodiment of the present invention, the SD contact includes 8 physical contacts, which specifically include: a first SD contact D1, a second SD contact D2, a third SD contact D3, a fourth SD contact D4, a fifth SD contact D5, a sixth SD contact D6, a seventh SD contact D7, an eighth SD contact D8;
the bottoms of the first SD contact D1, the second SD contact D2, the third SD contact D3, the fourth SD contact D4, the fifth SD contact D5, the sixth SD contact D6, the seventh SD contact D7 and the eighth SD contact D8 are arranged in parallel; wherein the content of the first and second substances,
the fourth and sixth SD contacts D4 and D6 are long contacts;
the SD contact conforms to the SD protocol and SD specification definition.
As an embodiment of the present invention, the SIM contact includes a first contact setting manner and a second contact setting manner; wherein the content of the first and second substances,
the first contact setting mode comprises 6 physical contacts;
the second contact arrangement comprises 8 physical contacts.
The first contact setting mode and the second contact setting mode are both symmetrically arranged contacts.
As an embodiment of the utility model, when the SIM contact sets up the mode for first contact, it includes: first, second, third, fourth, fifth, and sixth SIM contacts C1, C2, C3, C4, C5, and C6;
when the SIM contact is the second contact setting mode, it includes: first, second, third, fourth, fifth, sixth, seventh, and eighth SIM contacts C1, C2, C3, C4, C5, C6, C7, C8;
the SIM contact is provided with SIM protocol and SIM specification definition.
As an embodiment of the present invention, the smart card is provided with a SIM card interface, and the SIM card interface conforms to the 4FF Nano-SIM card standard;
the intelligent card is connected with external equipment through the SIM card interface and the SIM card interface;
and the SIM card interface supplies power to the intelligent card through the external equipment.
As an embodiment of the present invention, the encryption memory card includes: the SD card comprises an SD protocol controller, a flash memory chip and a security chip;
the SD protocol controller is provided with an SD card interface, a flash memory interface and a QSPI interface;
the SD protocol controller is connected with the SD card interface through the SD card interface;
the SD protocol controller is connected with the flash memory chip through the flash memory interface;
the SD protocol controller is physically connected with the security chip through an SPI interface; wherein the content of the first and second substances,
the SPI interface can be a four-wire QSPI interface, a single-wire Standard SPI interface or a double-wire Dual SPI interface;
the safety chip can also be physically connected with the SD protocol controller through a 7816 interface, a UART interface or an I2C interface;
the flash memory chip and the security chip are independently disconnected.
As an embodiment of the present invention, the SD contact is connected to a corresponding pin of the SD protocol controller.
As an embodiment of the present invention, the SIM contact is connected to the corresponding pin of the smart card.
The utility model has the advantages as follows:
the utility model relates to a multi-chip integrated card, the SD card interface is used for transmitting information data between the terminal and the encryption memory card, realizes functions such as expansion storage, encryption and decryption operation and digital certificate storage; the SIM card interface is used for transmitting telecommunication data between the terminal and the intelligent card to realize the telecommunication processing function; the SIM card interface and the SD card interface are independently disconnected, so that the telecommunication function module can be ensured to be an independent module, the telecommunication function module is physically separated from the storage module and the safety module without mutual influence, more space is effectively saved for a mobile terminal mainboard while the functionality of the mobile terminal is enhanced, the appearance design of the mobile terminal is not influenced, and the user experience degree can be remarkably improved.
The utility model relates to a multicore piece integrated card, the smart card passes the SIM card interface provides the power by the terminal, the telecom function module of smart card with encrypt the storage card mutual independence, the smart card is controlled by the terminal completely, realizes the relevant function of telecommunications, can effectively save more spaces for the terminal when having strengthened terminal functionality, ensures that mobile terminal appearance design is not influenced, the utility model discloses portable easy change can satisfy SIM card user's telecommunications user demand, further is of value to the degree of experience of user to the terminal.
The utility model relates to a multicore piece integrated card, SD agreement controller respectively with the flash memory chip with the security chip is connected, and card reader or terminal equipment can pass through like this SD card interface send safe instruction or storage instruction to realize safety or memory function, through the utility model discloses can realize functions such as extension storage, encryption and decryption operation and digital certificate storage, the security chip encrypts, and the secret key is saved in the hardware, and the data of being stolen can't decrypt, can really protect user's commercial privacy and data security, improve user experience degree.
The utility model relates to a multicore piece integrated card, the security chip with flash memory chip mutually independent can be with storage, security module and the mutual physical separation of telecommunications function, each other does not influence, can surely protect user's business privacy and data security, effectively reduces network risk and threat, the utility model discloses both can be used for expanding mobile terminal storage space, can regard as external hardware realization equipment of functions such as digital certificate storage, key storage, data encryption again, and not only safe but also convenient can show improvement user experience degree.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic diagram of a multi-chip integrated card according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a multi-chip integrated card contact surface according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of another exemplary embodiment of a contact surface of a multi-chip integrated card.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
In one embodiment, as shown in fig. 1, the present invention provides a multi-chip integrated card, comprising: a substrate;
an encrypted memory card and an intelligent card are arranged in the substrate;
the encrypted memory card is physically isolated from the smart card;
the surface of the substrate is provided with an SD card interface and an SIM card interface;
the SD card interface is connected with the encrypted memory card through an SD card interface;
the SIM card interface is connected with the intelligent card through an SIM card interface.
The working principle of the technical scheme is as follows:
the utility model relates to a multi-chip integrated card, the basement is used for bearing the contact interface, the encryption storage card and the smart card, when the user uses, the invention can be directly inserted into the corresponding card slot position in the mobile phone or the terminal, the contact interface is used for receiving the signal instruction issued by the card reader or the terminal equipment; the encryption memory card is used for realizing the functions of extended storage, encryption and decryption operation, digital certificate storage and the like; the smart card is used for processing telecommunication instructions and storing telecommunication data.
The beneficial effects of the above technical scheme are:
the utility model relates to a multi-chip integrated card, the position of the base in the mobile phone or the terminal can be fixed by the limiting groove, the problems of poor contact and the like caused by the displacement of the base can be avoided, the utility model is provided with an encryption storage card and an intelligent card in the base, the encryption storage card is used for realizing the functions of expanding storage, encryption and decryption operation, digital certificate storage and the like, the intelligent card is used for telecommunication processing, the intelligent card is physically separated from the encryption storage card, the storage, the safety module and the telecommunication function can be physically separated from each other, and the independent operation can be realized through the interaction of different interfaces and terminals, the commercial privacy and the data safety of users can be practically protected, the network risk and threat can be effectively reduced, the utility model has the advantages that the space occupation on the mainboard of the mobile terminal is small while the functionality of the mobile terminal is enhanced, and more, ensure that mobile terminal appearance design is not influenced, the utility model discloses portable easy change, the user can use the SIM card with can also using to encrypt the storage function, can obviously promote user experience degree.
In one embodiment, according to the illustration of figure 1,
the SD card interface is provided with an SD contact;
the SIM card interface is provided with an SIM contact;
the SIM card interface and the SD card interface are independent. The working principle of the technical scheme is as follows:
the utility model relates to a multi-chip integrated card, the SD card interface is used for transmitting information data between the terminal and the encryption memory card, realizes functions such as expansion storage, encryption and decryption operation and digital certificate storage; the SIM card interface is used for transmitting telecommunication data between the terminal and the intelligent card to realize the telecommunication processing function; the SIM card interface and the SD card interface are independent and not connected, so that the telecommunication functional module is an independent module, and the telecommunication functional module is physically separated from the storage and security module without mutual influence.
The beneficial effects of the above technical scheme are:
the utility model relates to a multi-chip integrated card, the SD card interface is used for transmitting information data between the terminal and the encryption memory card, realizes functions such as expansion storage, encryption and decryption operation and digital certificate storage; the SIM card interface is used for transmitting telecommunication data between the terminal and the intelligent card to realize the telecommunication processing function; the SIM card interface and the SD card interface are independently disconnected, so that the telecommunication function module can be ensured to be an independent module, the telecommunication function module is physically separated from the storage module and the safety module without mutual influence, more space is effectively saved for a mobile terminal mainboard while the functionality of the mobile terminal is enhanced, the appearance design of the mobile terminal is not influenced, and the user experience degree can be remarkably improved.
In one embodiment, as shown in fig. 2, the SD contacts include 8 physical contacts, which specifically include: a first SD contact D1, a second SD contact D2, a third SD contact D3, a fourth SD contact D4, a fifth SD contact D5, a sixth SD contact D6, a seventh SD contact D7, an eighth SD contact D8;
the bottoms of the first SD contact D1, the second SD contact D2, the third SD contact D3, the fourth SD contact D4, the fifth SD contact D5, the sixth SD contact D6, the seventh SD contact D7 and the eighth SD contact D8 are arranged in parallel; wherein the content of the first and second substances,
the fourth and sixth SD contacts D4 and D6 are long contacts;
the SD contact conforms to the SD protocol and SD specification definition. The working principle of the technical scheme is as follows:
the utility model relates to a multicore piece integrated card, the SD contact is 8 physical contacts: first SD contact D1, second SD contact D2, third SD contact D3, fourth SD contact D4, fifth SD contact D5, sixth SD contact D6, seventh SD contact D7, eighth SD contact D8, which may be defined according to the SD specification, wherein first SD contact D1, second SD contact D2, seventh SD contact D7, and eighth SD contact D8 may be defined as data line contacts DAT 0-DAT 3, fourth SD contact D4 may be defined as a power supply contact VCC, fifth SD contact D5 may be defined as a clock contact CLK, sixth SD contact may be defined as a ground contact VSS, third SD contact D3 may be defined as a command contact CMD, which is used for information transfer with the encrypted memory card, which is issued security commands received from a card reader or terminal device through 8 physical contacts of the SD card interface.
The beneficial effects of the above technical scheme are:
the utility model relates to a multicore piece integrated card, the SD contact is defined according to the SD standard, the SD contact be used for with it carries out information transfer to encrypt the memory card connection, encrypt 8 physical contacts on memory card interface and receive the safety command of issuing from card reader or terminal equipment, convenient and high-efficient.
In one embodiment, as shown in FIGS. 2-3, the SIM contacts comprise a first contact arrangement and a second contact arrangement; wherein the content of the first and second substances,
the first contact setting mode comprises 6 physical contacts;
the second contact arrangement comprises 8 physical contacts.
The first contact setting mode and the second contact setting mode are both symmetrically arranged contacts. When the SIM contact is a first contact setting mode, the SIM contact comprises: first, second, third, fourth, fifth, and sixth SIM contacts C1, C2, C3, C4, C5, and C6;
when the SIM contact is the second contact setting mode, it includes: first, second, third, fourth, fifth, sixth, seventh, and eighth SIM contacts C1, C2, C3, C4, C5, C6, C7, C8;
the SIM contact is provided with SIM protocol and SIM specification definition.
The working principle of the two technical schemes is as follows:
the utility model relates to a multicore piece integrated card, the SIM contact is 6 physical contacts: first SIM contact C1, second SIM contact C2, third SIM contact C3, fourth SIM contact C4, fifth SIM contact C5, sixth SIM contact C6, which may be defined according to the SIM specification, wherein the first SIM contact C1 may be defined as a power contact VCC, the second SIM contact C2 may be defined as a reset contact RST, the third SIM contact C3 may be defined as a clock contact CLK, the fourth SIM contact C4 may be defined as a ground contact GND, the fifth SIM contact C5 may be defined as a power contact VPP, and the sixth SIM contact C6 may be defined as an input-output contact IO, which is used for connecting with the smart card for information transfer. The SIM contacts are 8 physical contacts: first SIM contact C1, second SIM contact C2, third SIM contact C3, fourth SIM contact C4, fifth SIM contact C5, sixth SIM contact C6, seventh SIM contact C7, eighth SIM contact C8, which may be defined according to the SIM specification, wherein the first SIM contact C1 may be defined as a power contact VCC, the second SIM contact C2 may be defined as a reset contact RST, the third SIM contact C3 may be defined as a clock contact CLK, the fourth SIM contact C4 and the eighth SIM contact C8 may be defined as USB data contacts D + and D-, the fifth SIM contact C5 may be defined as a ground contact GND, the sixth SIM contact C6 may be defined as a power contact VPP, and the seventh SIM contact C7 may be defined as an input IO output contact, which are used for information transfer in connection with the smart card.
The beneficial effects of the above technical scheme are:
the utility model discloses the SIM contact is defined according to the SIM standard, the SIM contact is used for and has realized that the smart card is connected and is carried out information transfer.
In one embodiment, as shown in fig. 1-3, the smart card is provided with a SIM card interface,
the SIM card interface conforms to the standard of a 4FF Nano-SIM card;
the intelligent card is connected with external equipment through the SIM card interface and the SIM card interface;
and the SIM card interface supplies power to the intelligent card through the external equipment.
The working principle of the technical scheme is as follows:
the utility model relates to a multicore piece integrated card, the smart card is used for handling the telecommunications instruction, the contact size position of SIM card interface accords with 4FF Nano-SIM card standard, the smart card pass through the SIM card interface with SIM card interface connection, the terminal can directly send the relevant instruction of telecommunications through the SIM card interface to arrive the smart card, the smart card carries out the telecommunications data processing according to the instruction after receiving relevant instruction, realizes the relevant function of telecommunications, the smart card passes through the SIM card interface is provided with the power by the terminal, the telecommunications function module of smart card with encrypt the storage card mutual independence, the smart card is controlled by the terminal completely, realizes the relevant function of telecommunications.
The beneficial effects of the above technical scheme are:
the utility model relates to a multicore piece integrated card, the smart card passes the SIM card interface provides the power by the terminal, the telecom function module of smart card with encrypt the storage card mutual independence, the smart card is controlled by the terminal completely, realizes the relevant function of telecommunications, can effectively save more spaces for the terminal when having strengthened terminal functionality, ensures that mobile terminal appearance design is not influenced, the utility model discloses it is portable, easily change, can satisfy SIM card user's telecommunications user demand, further be of value to the user experience degree to the terminal.
In one embodiment, as shown in FIGS. 1-3, the encrypted memory card includes: the SD card comprises an SD protocol controller, a flash memory chip and a security chip;
the SD protocol controller is provided with an SD card interface, a flash memory interface and a QSPI interface;
the SD protocol controller is connected with the SD card interface through the SD card interface;
the SD protocol controller is connected with the flash memory chip through the flash memory interface;
the SD protocol controller is physically connected with the security chip through an SPI interface; wherein the content of the first and second substances,
the SPI interface can be a four-wire QSPI interface, a single-wire Standard SPI interface or a double-wire Dual SPI interface;
the safety chip can also be physically connected with the SD protocol controller through a 7816 interface, a UART interface or an I2C interface;
in the present invention: the SPI is a serial peripheral interface, and is a synchronous serial peripheral interface, which enables the MCU to communicate with various peripheral devices in a serial manner to exchange information. The SPI bus can be directly connected with various standard peripheral devices produced by various manufacturers, including FLASHRAM, network controller, LCD display driver, A/D converter and MCU. The interface generally uses 4 lines, a Serial Clock Line (SCLK), a master input/slave output data line MISO, a master output/slave input data line MOSI, and an active low slave select line NSS.
QSPI is the abbreviation of queue SPI, is the extension of SPI interface, and is more widely applied than SPI. On the basis of the SPI protocol, a queue transmission mechanism is added, and a queue serial peripheral interface protocol (namely the QSPI protocol) is promoted. Using this interface, a user can transmit a transmission queue containing up to 16 8-bit or 16-bit data at a time. Once transmission is started, CPU intervention is not needed until transmission is finished, and transmission efficiency is greatly improved. The protocol is widely applied to the ColdFire series MCU. Compared with the SPI, the biggest structural feature of the QSPI is to replace the transmit and receive data registers of the SPI with an 80-byte RAM.
The Standard SPI interface represents a Standard SPI interface; the standard SPI, commonly referred to as SPI, is a serial peripheral interface specification with 4 pin signals: clk, cs, mosi, miso.
The Dual SPI is for SPI Flash, not for all SPI peripherals. For SPI Flash, full duplex is not common, thus extending the use of mosi and miso to work on half duplex to double data transmission. That is, for Dual SPI Flash, a command byte can be sent into Dual mode, such that mosi becomes SIO0(serial io 0) and mosi becomes SIO1(serial io 1), such that 2 bits of data can be transmitted in one clock cycle, doubling the data transmission
7816, smart card interface;
UART is a general serial data bus used for asynchronous communication. The bus is in bidirectional communication, and full duplex transmission and reception can be realized. In the embedded design, the UART is used for the communication between the host and the auxiliary device, such as the car audio and the external AP, and the communication with the PC includes the communication with the monitoring debugger and other devices, such as the EEPROM.
I2C is a simple, bidirectional two-wire synchronous serial bus. It requires only two wires to transfer information between devices connected to the bus.
The flash memory chip and the security chip are independently disconnected.
The working principle of the technical scheme is as follows:
the utility model discloses an encryption storage card divide into the triplex, through SD agreement controller and SD card interface connection, SD card interface is used for receiving the instruction information that card reader or terminal equipment issued, SD card interface pass through SD card interface instruction information transmits for SD agreement controller, SD agreement controller respectively with flash memory chip with the safety chip is connected, SD agreement controller is used for with the receipt instruction information analysis distribution, realize the storage and data encryption and decryption function; the SD protocol controller is connected with the flash memory chip through the flash memory interface, and the flash memory chip is used for realizing a storage function; the SD protocol controller is connected with the safety chip through the QSPI interface, and is used for giving a safety instruction and storing safety data; the flash memory chip and the safety chip interact with a terminal through different interfaces, the storage, the safety module and the telecommunication function can be further physically separated from each other, independent operation is realized, and mutual influence is avoided. The security chip is connected with corresponding pins of the SD protocol controller through a four-wire QSPI to carry out high-speed communication. Here, a case where the SD protocol controller and the security chip are physically connected through a four-wire QSPI to implement a secure communication function is described, but the embodiment of the present invention is not limited to this, and other similar connection modes are also applicable to the embodiment of the present invention. For example, the SD protocol controller is physically connected to the secure chip through a single-wire Standard SPI, a two-wire Dual SPI, or a Quad SPI, and communicates with the secure chip through physical connection methods such as 7816, UART, I2C, and the like. Similarly, the embodiment of the present invention can also be applied to a secure chip product with SD interface communication, and its typical implementation mode is to integrate the SD module, the secure module and the storage module in one SOC chip.
The beneficial effects of the above technical scheme are:
the utility model discloses SD agreement controller respectively with the flash memory chip with the safety chip is connected, and card reader or terminal equipment can pass through like this SD card interface send safety instruction or storage instruction to realize safety or memory function, through the utility model discloses can realize functions such as extension storage, encryption and decryption operation and digital certificate storage, the safety chip encrypts, and the secret key is stored in the hardware, and the data of being stolen can't decrypt, the safety chip with the flash memory chip is mutually independent, can be with the mutual physical separation of storage, safety module and telecommunication function, and interface and terminal through the difference are mutual, can independent operation, each other do not influence, can really protect user's commercial privacy and data security, show improvement user experience degree.
In one embodiment, the SD contacts are connected to corresponding pins of the SD protocol controller, as shown in FIGS. 1-3. The SIM contact is connected with the corresponding pin of the smart card.
The working principle of the technical scheme is as follows:
the utility model relates to a multicore piece integrated card, the SD card interface is used for the safety relevant instruction information transfer that issues card reader or terminal equipment to transmit for SD agreement controller, SD agreement controller are used for judging whether the safety relevant instruction of receipt is safety instruction: if the command is a safety command, the SD protocol controller sends the safety command to the safety chip through the QSPI interface, the safety chip is used for carrying out corresponding processing according to the safety command, after the safety chip finishes processing, the safety chip returns data to the SD protocol controller through the QSPI interface, and the SD protocol controller reports the returned data to the card reader or the terminal equipment through the contact interface; if the command is a non-safety command, the SD protocol controller analyzes and executes the command according to an SD protocol to realize storage related functions, the SD protocol controller transmits information to the flash memory chip through a flash memory interface, after the flash memory chip finishes processing, the flash memory chip returns data to the SD protocol controller through the flash memory interface, and the SD protocol controller reports the returned data to the card reader or the terminal device through the contact interface. The SIM card interface sends a telecommunication command to the smart card when receiving the command, the smart card is connected with the terminal through the C1-C6 or C1-C8 contact interface, and the 6 contact or 8 contact accords with the related definition of the SIM card. Is completely controlled by the terminal to realize relevant functions of telecommunication. The storage, security module and telecommunications functions can be satisfied, and the telecommunications functions are independent modules and physically separated from the storage and security modules without mutual influence.
The beneficial effects of the above technical scheme are:
the existing MicroSD and SIM double-interface memory card on the market only realizes the function of combining MicroSD storage and SIM into one, wherein only one security chip is provided, and data isolation is difficult to realize in the same security chip for electronic government affair application and operators. And the utility model relates to a multicore piece integrated card, the security chip with flash memory chip mutually independent can be with storage, security module and the mutual physical separation of telecommunication function, and interface and terminal through the difference are mutual, can independent operation, and each other does not influence, can cut real commercial privacy and the data safety of protection user, effectively reduces network risk and threat, the utility model discloses both can be used for expanding mobile terminal storage space, can regard as external hardware realization equipment of functions such as digital certificate storage, key storage, data encryption again, not only safe but also convenient, can show improvement user experience degree.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. A multi-chip integrated card, comprising:
a substrate;
an encrypted memory card and an intelligent card are arranged in the substrate;
the encrypted memory card is physically isolated from the smart card;
the surface of the substrate is provided with an SD card interface and an SIM card interface;
the SD card interface is connected with the encrypted memory card through an SD card interface;
the SIM card interface is connected with the intelligent card through an SIM card interface.
2. The multi-chip integrated card of claim 1,
the SD card interface is provided with an SD contact;
the SIM card interface is provided with an SIM contact;
the SIM card interface and the SD card interface are independent.
3. The multi-chip integrated card of claim 2, wherein the SD contacts comprise 8 physical contacts, which specifically comprise: a first SD contact D1, a second SD contact D2, a third SD contact D3, a fourth SD contact D4, a fifth SD contact D5, a sixth SD contact D6, a seventh SD contact D7, an eighth SD contact D8;
the bottoms of the first SD contact D1, the second SD contact D2, the third SD contact D3, the fourth SD contact D4, the fifth SD contact D5, the sixth SD contact D6, the seventh SD contact D7 and the eighth SD contact D8 are arranged in parallel; wherein the content of the first and second substances,
the fourth and sixth SD contacts D4 and D6 are long contacts;
the SD contact conforms to the SD protocol and SD specification definition.
4. The multi-chip integrated card of claim 2, wherein the SIM contacts comprise a first contact arrangement and a second contact arrangement; wherein the content of the first and second substances,
the first contact setting mode comprises 6 physical contacts;
the second contact setting mode comprises 8 physical contacts;
the first contact setting mode and the second contact setting mode are both symmetrically arranged contacts.
5. The multi-chip integrated card according to claim 2, wherein when the SIM contact is the first contact, it comprises: first, second, third, fourth, fifth, and sixth SIM contacts C1, C2, C3, C4, C5, and C6;
when the SIM contact is the second contact setting mode, it includes: first, second, third, fourth, fifth, sixth, seventh, and eighth SIM contacts C1, C2, C3, C4, C5, C6, C7, C8;
the SIM contact is provided with SIM protocol and SIM specification definition.
6. The multi-chip integrated card according to claim 2, wherein the smart card is provided with a SIM card interface,
the SIM card interface conforms to the standard of a 4FF Nano-SIM card;
the intelligent card is connected with external equipment through the SIM card interface and the SIM card interface;
and the SIM card interface supplies power to the intelligent card through the external equipment.
7. The multi-chip integrated card according to claim 2, wherein the encryption memory card comprises: the SD card comprises an SD protocol controller, a flash memory chip and a security chip;
the SD protocol controller is provided with an SD card interface, a flash memory interface and a QSPI interface;
the SD protocol controller is connected with the SD card interface through the SD card interface;
the SD protocol controller is connected with the flash memory chip through the flash memory interface;
the SD protocol controller is physically connected with the security chip through an SPI interface; wherein the content of the first and second substances,
the SPI interface can be a four-wire QSPI interface, a single-wire standard SPI interface or a double-wire DualSPI interface;
the safety chip can also be physically connected with the SD protocol controller through a 7816 interface, a UART interface or an I2C interface;
the flash memory chip and the security chip are independently disconnected.
8. The multi-chip integrated card according to claim 7, wherein the SD contact is connected to a corresponding pin of the SD protocol controller.
9. A multi-chip integrated card according to claim 2, wherein the SIM contacts are connected to corresponding pins of the smart card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022440752.3U CN213399650U (en) | 2020-10-29 | 2020-10-29 | Multi-chip integrated card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022440752.3U CN213399650U (en) | 2020-10-29 | 2020-10-29 | Multi-chip integrated card |
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