CN2653698Y

CN2653698Y - Integrated circuit card and integrated circuit

Info

Publication number: CN2653698Y
Application number: CN 03208630
Authority: CN
Inventors: 陈大才; 胡俊义
Original assignee: Beijing WatchData System Co Ltd
Current assignee: Beijing WatchData System Co Ltd
Priority date: 2003-08-29
Filing date: 2003-08-29
Publication date: 2004-11-03
Anticipated expiration: 2013-08-29

Abstract

The utility model relates to the IC technique, which belongs to an integrated circuit, and whose encapsulation meets the standard of ISO7816-2. The utility model comprises a supply voltage pin, a reset signal pin, a clock signal pin, a grounding pin, an input to output pin, a first spare pin and a second spare pin. The utility model is characterized in that the integrated circuit also comprises an USB circuit; the USB circuit is provided with a first difference data pin and a second difference data pin which are connected respectively with the first space pin and the second spare pin of the integrated circuit. By utilizing the utility model, the communication rate of the IC card will be improved greatly.

Description

A kind of integrated circuit card and integrated circuit

Technical field

The utility model relates to integrated circuit technique, relates in particular to the field that manufactures and designs of IC-card and Related product thereof.The Related product here is meant the product that is derived by IC-card, as flush bonding module, IC-card read-write equipment etc.

Technical background

IC-card is also referred to as integrated circuit card, and traditional IC-card adopts the ISO7816 standard.Chip Packaging at IC-card is formal, encapsulates 8 pins, has stipulated the usage and the electrical characteristic of 8 pins among the ISO7816-2.The numbering of 8 pins is C1, C2, C3, C4, C5, C6, C7, C8, wherein C1 is supply voltage (VCC), C2 is reset signal (RST), and C3 is clock signal (CLK), and C5 is ground (GND), C7 is I/O (I/O), C4 and C8 do not use, and C6 is defined as program voltage (VPP) in ISO/IEC 7816, also can not exist physically, if but the C6 existence then should be carried out electricity with other pins on integrated circuit itself and the IC-card with it and isolate.The electricity isolation is meant when loading the 5V direct voltage, the resistance between C6 and other pins 〉=10M Ω.

These pins are IC-card and the outside passage that carries out information interchange.In ISO7816-3, stipulated the agreement of half duplex communication.

Traditional IC-card ability to communicate is limited, mainly shows on the communication speed.

Along with development of times, development of technology, the communication modes of ancillary equipment is in revolution on personal computer, and the USB communication modes becomes universal communication modes.USB interface has four pins, and one one is used as ground connection as power supply, and two are used as the transmission differential data in addition.

IC-card also is used for flush bonding module, perhaps is integrated in one with read write line, uses with the form of electron key.The external interface of electron key is USB, electron key be configured with single-chip and multicore sheet form, the multicore sheet is outside IC-card chip (being encapsulated as the Surface Mount form) usb interface module to be arranged in addition, single-chip be the IC-card chip internal integrated the USB parts.

The problem that present IC-card exists is that transmission rate is low, and ability to communicate is extremely limited, also has certain inconvenience in addition on the updated stored content.

Summary of the invention

The purpose of this utility model is exactly to improve the communication condition of IC-card, proposes a kind of novel integrated circuit and based on the integrated circuit card of this integrated circuit, to change present integrated circuit and the outside low situation of communication efficiency.

For this reason, the utility model adopts following technical scheme.

A kind of integrated circuit, its encapsulation meets the ISO7816-2 standard, comprises supply voltage pin, reset signal pin, clock signal pin, grounding pin, I/O pin, the first standby pin and the second standby pin; Wherein said integrated circuit also comprises a USB circuit, and described USB circuit has the first differential data pin and the second differential data pin, is connected to the first standby pin and the second standby pin of integrated circuit respectively.

Described USB circuit also comprises the power pins and second grounding pin.

Described integrated circuit also comprises a program voltage pin.

A kind of integrated circuit card, comprise card body and the integrated circuit that is installed on the card body, described integrated circuit encapsulation meets the ISO7816-2 standard, comprise supply voltage pin, reset signal pin, clock signal pin, grounding pin, I/O pin, the first standby pin and the second standby pin; Wherein said integrated circuit card also comprises a USB circuit, and described USB circuit has the first differential data pin and the second differential data pin, is connected to the first standby pin and the second standby pin of integrated circuit respectively.

Described integrated circuit and USB circuit branch are located in the card body.

Described USB circuit is arranged in the integrated circuit.

Described integrated circuit card also comprises the USB extended line, is connected in the first differential data pin and the second differential data pin of described USB circuit, to connect integrated circuit card and PC terminal.

Technical solutions of the utility model by the introducing of USB circuit, can improve the speed that data write, read greatly, and can make things convenient for the renewal of data to handle.

Description of drawings

Fig. 1 is the schematic diagram of integrated circuit in the prior art;

Fig. 2 is the internal structure schematic diagram of the utility model integrated circuit card;

Fig. 3 is the concrete schematic diagram of using of the utility model.

Embodiment

Below in conjunction with Figure of description embodiment of the present utility model is described.

As shown in Figure 1, be among the ISO/IEC7816-2, about the pertinent regulations of 8 pin arrangements methods of integrated circuit IC-card, wherein 8 pins are lined up two row, 4 of every row, 2 * 1.7 millimeters of each pin yardsticks, 5.62 millimeters of column pitch, 1.7 millimeters of pin fore-and-aft distances.The numbering of these 8 pins is respectively C1, C2, C3, C4, C5, C6, C7, C8, wherein C1 is supply voltage (VCC), C2 is reset signal (RST), C3 is clock signal (CLK), and C5 is ground (GND), and C7 is I/O (I/O), C6 is defined as program voltage (VPP) in ISO/IEC7816, the C6 existence can not exist physically, if but then should be carried out the electricity isolation with other pins on integrated circuit itself and the IC-card with it yet.The electricity isolation is meant when loading the 5V direct voltage, the resistance between C6 and other pins 〉=10M Ω.

The figure here is a schematic diagram, is not the figure that draws according to physical size.

In ISO7816-2, C4 and C8 be definition not, and the USB design of the IC-card that proposes utilizes these two pins to transmit the differential data of USB communication exactly now.

As shown in Figure 2, be the structural representation of the IC-card of the utility model design.

In order to realize the USB communication on IC-card, we the execution mode of design are, integration USB parts in the IC-card chip, and these USB parts can be the USB circuit, also can be integrated good USB modules.When carrying out Chip Packaging, two differential data line of USB are connected on C4 and two pins of C8, set up the USB communication function in IC-card inside, make IC-card when keeping the defined communication function of original ISO7816, had the USB communication function.With this integrated circuit encapsulation, promptly design integrated circuit card of the present utility model.The left side is the schematic diagram of IC-card chip among Fig. 2, and the right side is the package contacts schematic diagram, and two lines are represented the differential data line of USB unit in the chip and two contacts of C4/C8 are coupled together.As we can see from the figure, this IC-card also comprises circuit (module) such as CPU, RAM, RSA, RNG, but because be not emphasis of the present utility model, just needn't describe in detail at this.

This IC is encapsulated into inner, can't see from the outside of card, can only see 8 contacts from card, and these contacts are windows of IC-card chip and outside exchange message.

As shown in Figure 3, be the application schematic diagram of IC-card of the present utility model in system, as we can see from the figure, the applied environment of this IC-card comprises PC, read write line.In order to carry out the USB communication with IC-card, also to increase function corresponding at the read write line end, the pin that is connected with the C4/C8 of IC-card on the read write line dop, be used to transmit the differential data of USB communication.Read write line links to each other by the USB interface of USB extended line and PC, makes PC carry out communication in the mode of USB with IC-card.In use, IC-card is inserted read write line, the contact of dop directly contacts in the contact of IC-card and the read write line, and the USB driver is loaded into relevant terminal, can make integrated circuit carry out communication in the USB mode by this USB circuit.

Because the introducing of USB circuit adopts the utility model can increase substantially the communication speed of integrated circuit card.

The above; it only is the preferable embodiment of the utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of claims.

Claims

1, a kind of integrated circuit, its encapsulation meets the ISO7816-2 standard, comprises supply voltage pin, reset signal pin, clock signal pin, grounding pin, I/O pin, the first standby pin and the second standby pin; It is characterized in that described integrated circuit also comprises a USB circuit, described USB circuit has the first differential data pin and the second differential data pin, is connected to the first standby pin and the second standby pin of integrated circuit respectively.

2, integrated circuit as claimed in claim 1 is characterized in that described USB circuit also comprises the power pins and second grounding pin.

3, integrated circuit as claimed in claim 1 is characterized in that also comprising a program voltage pin.

4, a kind of integrated circuit card, comprise card body and the integrated circuit that is installed on the card body, described integrated circuit encapsulation meets the ISO7816-2 standard, comprise supply voltage pin, reset signal pin, clock signal pin, grounding pin, I/O pin, the first standby pin and the second standby pin; It is characterized in that described integrated circuit card also comprises a USB circuit, described USB circuit has the first differential data pin and the second differential data pin, is connected to the first standby pin and the second standby pin of integrated circuit respectively.

5, integrated circuit card as claimed in claim 4 is characterized in that described integrated circuit and USB circuit branch are located in the card body.

6, integrated circuit card as claimed in claim 4 is characterized in that described USB circuit is arranged in the integrated circuit.

7, as claim 5 or 6 described integrated circuit cards, it is characterized in that also comprising the USB extended line, be connected in the first differential data pin and the second differential data pin of described USB circuit, to connect integrated circuit card and PC terminal.