What are smart card

A smart card resembles a credit card in size and shape, but inside it is completely different. First of all, it has an inside -- a normal credit card is a simple piece of plastic. The inside of a smart card usually contains an embedded microprocessor. The microprocessor is under a gold contact pad on one side of the card. Think of the microprocessor as replacing the usual magnetic stripe on a credit card or debit card.

The SLE4428 is really a standard, low-cost EEPROM memory smart card with 1Kbyte space for storing. It is a protected smart card that contains 1,024 bytes of EEPROM memory. After eight successive incorrect entries the error counter will block any subsequent work for balance PSC verification thus any possibility to write and erase. It is no doubt that provides feeling of secure for your users. SLE4428 is now replaced with SLE5528. SLE5528 is 100% functional compatible to SLE4428.

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