SIM Card

Subscriber Identification Module

[SIM Card Description][Standard Organizations] [Pinouts][Connectors]

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Smart Card Description

A SIM card is basically a Smart Card used to store the identifying key for a mobile phone. Smart Card defines the physical and electrical protocols for a plastic 'chip card' used to store data. A Smart Card can hold much more data then via a simple magnetic strip. A Smart card will either have an embedded memory chip to store data, or an embedded microprocessor to interact during a transaction. Smart Card uses normal TTL switching levels. Smart Card come in two different interface types; a contact type and a contactless type. The contact-less type uses an embedded antenna. The contact type has an 8-pin flat connector embedded on the top of the card.

Smart Cards are also referred to by other names depending upon its application:
UICC Card [Universal Integrated Circuit Card], Smart Card used in mobile phones.
SIM Card [Subscriber Identity Module], the type of application running on a UICC Smart Card.

Smart Card Alliance
Smart Cards Online

SIM cards are very common in but the most least expensive cell phones.
Kích thước SIM Cards có thể 85.60 mm × 53.98 mm x 0.76 mm, hoặc 25 x15 x 0.76 mm.

A Smart card may also be called, Smartcards, chip cards, or integrated circuit (IC) cards
SIM: Subscriber Identity Module.
SIM: Subscriber Identification Module

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Smart Card Standard Organizations

ISO: International Organization for Standardization

IEC: International Electrotechnical Commission

Smart Card Specifications: ISO 7816-1, 2, 3
ISO 7816-3 Electronic Signals and Transmission Protocols; defines the electrical aspects.

ISO/IEC JTC1/SC17/WG8 Contactless Integrated Circuit(s) Cards
{WG8 is the Working group involved in the standards}

{SIM Card Index}

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Smart Card PinOut

8 Pin Smartcard Bus PinOut

Pin #	Pin Name	Pin Description
1	VCC	+5v or 3.3v DC
2	Reset	Card Reset (Optional)
3	CLOCK	Card Clock
4	AS	Application Specific
5	GND	Ground
6	VPP	+21v DC [Programming], or NC
7	I/O	In/Out [Data]
8	AS	Application Specific

6 Pin Smartcard Bus PinOut

Pin #	Pin Name	Pin Description
1	VCC	+5v or 3.3v DC
2	Reset	Card Reset (Optional)
3	CLOCK	Card Clock
5	GND	Ground
6	VPP	+21v DC [Programming], or NC
7	I/O	In/Out [Data]