●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.
●The SC300™ core brings great performance and excellent code density thanks to the Thumb®-2 instruction set.
●The high-speed embedded Flash memory introduces more flexibility to the system.
●The ST33GxxxA also offers a serial communication interface fully compatible with the ISO/IEC 7816-3 standard (T=0, T=1) and a single-wire protocol (SWP) interface for communication with a near field communication (NFC) router in SIM/NFC applications.
●An SPI Master/Slave interface is also available for communication in non-SIM applications.
●The ST33GxxxA features hardware accelerators for advanced cryptographic functions. The EDES peripheral provides a secure DES (Data Encryption Standard) algorithm implementation, while the NESCRYPT cryptoprocessor efficiently supports the public key algorithm. The AES peripheral ensures secure and fast AES algorithm implementation.
●The device operates in the –40 to +105 °C temperature range and 1.8 V, 3 V and 5 V supply voltage ranges. A comprehensive range of power-saving modes enables the design of efficient low-power applications.
●The ST33GxxxA’s automotive grade is AEQ100 compliant and provides user Flash memory capability up to 500 kcycles with 15 years’ data retention.
●In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK®packages, depending on their level of environmental compliance. ECOPACK®specifications, grade definitions and product status are available at: www.st.com. ECOPACK®is an ST trademark.
●Key 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)
● Security features
● Active shield
● Memory protection unit (MPU)
● Monitoring of environmental parameters
● Protection against faults
● 16- and 32-bit CRC calculation block (ISO 13239, IEEE 802.3, etc.)
● True random number generator
● Unique serial number on each die
● Hardware security-enhanced DES accelerator
● Hardware security-enhanced AES accelerator
● NESCRYPT coprocessor for public key cryptography algorithm
