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There are several varieties of contact smart cards available. The type suitable for your application depends on the amount of data you require to be held and the level of security needed.
Contact smart cards are split into two major categories: Memory and Microprocessor. Memory cards are like CDs; they hold data but are not intelligent devices. Microprocessor chips are like PCs as they hold data and are intelligent.
PIN Protected Memory Cards:
Applications include fuel cards, vending cards, loyalty applications, electronic coupons, subscribers card, electronic purse, membership cards, utility prepayment, identity and variety of protected portable data files.
Examples of these cards include:
SLE4442 - 256 Byte, Pin Protected Write
SLE4428 - 1K Byte, Pin Protected Write
Uses include non-confidential storage/low security applications, vending, transport, subscriber's card, portable data and identity.
24LC02 - 256 Byte, No Protection, 24LC16 - 2K Byte, No Protection, 24LC64 - 8K Byte, No Protection
The multi-application microprocessor card offers increased security for e-purse functions and a higher level of date management features along with EMV functionality if required. Card types provided by Cardzgroup include the Gemalto cards, a full range of Banking and non-banking high security Microprocessor cards.
Java Card refers to a technology that allows small - based applications () to be run securely on and similar small memory footprint devices. Multiple applications can be deployed on a single card, and new ones can be added to it even after it has been issued to the end user. Applications written in the Java programming language can be executed securely on cards from different manufacturers.