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Subscriber Identification Module
[SIM Card Description]
[Standard Organizations] [Pinouts]
[Connectors] [OEM
Links]
[Home]
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.
SIM cards are very common in but the most least expensive cell phones.
SIM Cards may be 85.60 mm x 53.98 mm x 0.76 mm, or 25 mm, a height of 15 mm, and a thickness of 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
ISO:
International Organization for Standardization
IEC: International Electrotechnical Commission [www.iec.ch]
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 [http://wg8.de/index.html] Contactless
Integrated Circuit(s) Cards
{WG8 is the Working group involved in the standards}
Smart Card Alliance
Smart Cards Online
| 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 |
| 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] |
The 6-Pin square, flat connector is most common
Refer to the main Smart Card page for connector manufacturers
Samsung Electronics Co.
{Dual interface smart card ICs, 72kB/ 144kB Electrically Erasable and Programmable ROM; EEPROMs. Single-chip CMOS micro-controller}
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