技术特性

• Hardware features
  • ARM Cortex™-M3 32-bit RISC core
  • 8 Kbytes of user RAM
  • 256 Kbytes of user Flash memory with OTP area:
    • 10-year data retention
    • 100,000 Erase/Write cycles per page
    • Page granularity of 128 Bytes
    • Block granularity: 1 Kbyte
    • 128 Bytes of OTP for User
    • Page Erase time 3 ms
    • Block Erase 1 Kbyte in 15 ms
    • Programming performance up to 10μs/byte
    • Flash Erase / Write Protection software programmable on 64 Kbyte sectors
  • Asynchronous Receiver Transmitter supporting ISO 7816-3 T=0 and T=1 protocols
  • Two 16-bit timers with interrupt capability
  • 1.8V, 3V and 5V supply voltage ranges
  • External clock frequency from 1 up to 7.5 MHz
  • High performance provided by:
  • CPU clock frequency up to 20 MHz
  • External clock multiplier (2x, 3x, and 4x)
  • Current consumption compatible with GSM and ETSI specifications
  • Power-saving Standby state
  • Contact assignment compatible ISO 7816-2
  • ESD protection greater than 4 kV (HBM)
• Security features
  • Monitoring of environmental parameters
  • Protection against faults
  • ISO 3309 CRC calculation block
  • True random number generator
  • Unique serial number on each die
  • Hardware DES accelerator
• Software features
  • Flash Loader
  • Flash drivers
• Development environment: Software development and firmware generation are supported by a comprehensive set of development tools dedicated to software design and validation:
  • C Compiler
  • Simulator
  • Emulator

功能框图