Hardware pinouts information and cables schemes

Smart Card (Sim Card) interface pinout

memory connector

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Described by ISO 7816 standard. Used in cellular phones, pay TVs, etc.

6 pin Simcard special connector layout

6 pin Simcard special connector
at the card



Pin Name Description
1VCC+5 VDC power supply input (optional use by the card)
2RESETEither used itself (reset signal supplied from the interface device) or in combination with an interal reset control circuit (optional use by the card). If internal reset is implemented, the voltage supply on Vcc is mandatory
3CLOCKClocking or timing signal (optional use by the card)
4GNDGround (reference voltage)
5VppPrograming voltage input (optional). This contact may be used to supply the voltage required to program or to erase the internal non-volatile memory.
6I/OInput or Output for serial data to the integrated circuit inside the card
7,8N/Cnot used

The dialogue between the interface device and the the card shall be conducted through the consecutive operations:

  • connection and activation of the contacts by the interface device
  • reset of the card
  • answer to reset by the card
  • subsequent information exchange between the card and the interface device
  • desactivation of the contacts by the interface device

Interfacing smart card isn't a simple task. Links in the following "source(s)" section leads to description of signals, timings, etc.

8 pin SMARTCARD special connector diagram

8 pin SMARTCARD special connector
at the card

Related Links:
Pinouts.ru > Memory slots and cards connectors pinouts >  Pinout of Smart Card (Sim Card) interface and layout of 6 pin Simcard special connector and 8 pin SMARTCARD special connector
Document status: correct
Source(s) of this and additional information: www.cardwerk.com and Telecard/Smartcard Technical Spec & Info by Stephane Bausson 4 reports
Last updated at Sat Aug 19 2006. Submit additions or corrections for this document. Is this document correct or incorrect? What is your opinion?
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