It is widely used in the transport industry because it is easy to use, savescustomer time to market. Us in a non-contact IC cards are becoming more and more popular, consumers knowingly or unknowingly followed the pace of thetimes.

At present, the application of contactless cards almost all memory card, thisis because no MCU-based contactless smart card technology. Previous protocols(ISO14443TYPEA) RF signal using 100% module, sometimes energy supply will cutcard, in this case, micro computer clock interrupts will cause all securityfeatures transmission

Interruption of MCU chip cannot be used in a non-contact card.

ST has developed a new contactless smart card communication protocol(ISO14443TYPEB), the Protocol received support from many manufacturers, theywere convinced that the RF signal is always present (RF modules are limited to 10%), and continued energy supply. This means based on MCU chip can be used incontactless cards.

This new research has developed many new applications of contactless cards.Shall use the contact card applications, contactless cards can now be used.Particularly interesting is the possibility of application of contactlesscards in the financial sector, such as electronic wallets, MCU chips it needsto ensure its security.

Software and IC card manufacturing process (particularly with regard tosafety) parallel development and is a good combination, make it possible tomanufacture multi-purpose contactless IC card. 9 months ago, ST hasdemonstrated a contactless smart card based on its ST16RF42 chip, thecontactless smart card electronic wallets, train tickets (one way ticket andround-trip ticket), stop payments, and functions in one city tram. The cardcurrently being NICE and France trial in the South. This solution will createa better business model for potential users, and stimulate consumers to enjoya wide range of services in the travel, to buy more stuff.

 contactless cards will cover many areas of application. However, thecurrent contactless smart card chip for computing and storage capacities havelagged behind the contact card version, because its chips, energy supply isobviously limited by the RF signal recovery of energy.