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ST7LCRDIE6 Datasheet(PDF) 10 Page - STMicroelectronics |
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ST7LCRDIE6 Datasheet(HTML) 10 Page - STMicroelectronics |
10 / 29 page ST7LCR 10/29 3 ST7LCR implementation ST7LCRE4U1 and ST7LCRDIE6 offer single IC solutions and simplifies the integration of smartcard interfaces into smartcard readers. 3.1 Functionality A dedicated analog block provides the power supplies 1.8 V and 3 V necessary to interface with different smartcard voltages available on the market. Voltages are selected by software. A dedicated UART interface provides an IS07816 communication port for connection with the smartcard connector. A full-speed USB interface port allows external connection to a host computer. 3.2 Smartcard interface features The ST7LCRE4U1 and ST7LCRDIE6 include the following features: ● Compatibility with asynchronous cards ● Compatibility with T=0 and T=1 protocols ● Compatibility with EMV and PC/SC modes. ● Compliance with ISO 7816-3 and 4 and ability to supply the cards with 1.8 V or 3 V (class A, B or C cards, respectively) ● Resume/wake-up mode upon smartcard insertion/removal The reader is able to communicate with smartcards up to the maximum baud rate allowed, namely 344 086 bps (TA1=16) for a clock frequency of 4 MHz. Because the size of the smartcard buffer is 261 bytes, care must be taken not to exceed this size during APDU exchanges when the protocol in use is T=1. |
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