Description
   The ST33GxxxA (see Table 1) is a serial access microcontroller designed for secure mobile applications that incorporates the most recent generation of ARM® processors for embedded secure systems. Its SecurCore® SC300™ 32-bit RISC core is built on the Cortex® M3 core with additional security features to help to protect against advanced forms of attacks.

FEATUREs
Hardware features
• ARM® SecurCore® SC300™ 32-bit RISC core
   cadenced at 25 MHz
• 30 Kbytes of user RAM
• Up to 1280 Kbytes of user Flash memory with
   OTP area
• Asynchronous receiver transmitter supporting
   ISO/IEC 7816-3 T=0 and T=1 protocols (Slave
   mode supported)
• Single wire protocol (SWP) interface for
   communications with NFC router (ETSI
   102-613 compliant)
• Serial peripheral interface (SPI) master/slave
   interface
• Three 16-bit timers with interrupt capability
• Seven general-purpose I/Os enabling
   proprietary protocol implementation
• 1.8 V, 3 V and 5 V supply voltage ranges
• External clock frequency from 1 up to 10 MHz
• Current consumption compatible with GSM
   and ETSI specifications
• Power-saving standby state
• Contact assignment compatible with
   ISO/IEC 7816-2
• ESD protection greater than 4 kV (HBM)

APPLICATIONs
Major ST33G1M2A applications include:
• Mobile communications (Automotive grade)
• Java Card™ applications
• AECQ100 compliant