Description
   Designed for secure ID and banking applications, the ST31H platform products (ST31H320, ST31H256, ST31H192 and ST31H128) are serial access microcontrollers that incorporate the most recent generation of ARM processors for embedded secure systems. Their SecurCore® SC000™ 32-bit RISC core is built on the Cortex™ M0 core with additional security features to help to protect against advanced forms of attacks.

FEATUREs
Hardware features
• ARM® SecurCore® SC000™ 32-bit RISC core
• 10 Kbytes of User RAM
   – Up to 320 Kbytes of secure, high-density
      User Flash memory
• Operating temperature: –25 °C to +85° C
• Three 16-bit timers with interrupt
• Watchdog timer
• 1.62 V to 5.5 V supply voltages
• External clock frequency up to 10 MHz
• CPU clock frequency up to 28 MHz
• Power-saving Standby state
• Contact assignment compatible with
   ISO/IEC 7816-3 standards
• Asynchronous receiver transmitter (IART) with
   RAM buffer for high speed serial data support
   (ISO/IEC 7816-3 T=0/T=1 and EMV compliant)
• ESD protection greater than 5 kV (HBM)

Security features
• Active shield
• Monitoring of environmental parameters
• Three-key Triple DES accelerator
• AES accelerator
• AIS-31 Class PTG.2 compliant true random
   number generator (TRNG)
• NESCRYPT coprocessor for public key
   cryptography algorithm
• ISO/IEC 13239 CRC calculation block
• Unique serial number on each die
• Protection against multiple attacks