技术特性

• Hardware features
  • Enhanced 8/16-bit ST23 CPU core with 16 Mbytes linear addressable memory
  • 230 Kbytes User ROM
  • 4 Kbytes User RAM
  • 2 Kbytes NESCRYPT RAM
  • 18 Kbytes User EEPROM including 128 Bytes User OTP area:
    • 30-year data retention at 25° C
    • 500,000 Erase/Write cycles endurance typical at 25° C
    • 1 to 64 bytes Erase or Program in 2 ms
  • Enhanced NESCRYPT crypto-processor for public key cryptography
  • Three 8-bit timers with watchdog and interrupt capability
  • 3 V and 5 V supply voltage ranges
  • External clock frequency up to 10 MHz
  • High performance provided by:
    • CPU clock frequency up to 29 MHz
  • Adjustable clocks for better granularity
  • Power-saving Standby state
  • Contact assignment compatible ISO 7816-3
  • Asynchronous receiver transmitter (IART) for high speed serial data support (ISO 7816-3 and EMV™ compliant)
  • ESD protection greater then 6 kV (HBM) for contact pads and 5 kV for contactless pads
• Contactless features
  • Complies with ISO 14443 type B, Innovatron (type B’) and PayPass™ standards
  • 13.56 MHz carrier frequency
  • RF frame up to 512 bytes
  • RFUART (RF universal asynchronous receiver transmitter) up to 848 Kbits/s
  • 0.5 Kbytes dedicated RFUART RAM
  • BPSK - NRZ load modulation (card-to-reader)
  • 8 to 14% amplitude modulation reception (reader to card) as minimum range
  • Enhanced RF performance provided by CPU clock frequency up to 29 MHz coupled with clock frequency divider
• Security features
  • Active shield
  • Monitoring of environmental parameters
  • Protection mechanisms against faults
  • Hardware security enhanced DES accelerator
  • AIS-31 class P2 compliant true random number generator (TRNG)
  • ISO 3309 CRC calculation block
  • Memory protection unit (MPU)
  • Unique serial number on each die
• Development environment
  • Interface with RF readers supported through a library of embedded software functions compatible with ISO 14443 standard
  • Software development and firmware generation are supported by a comprehensive set of development tools dedicated to software design and validation:
    • C compiler, simulator and emulator

功能框图