32bit ARM SC300 secure core with MIFARE™ , SWP for Secure Element and SIM-SWP

The ST33GxxxSM 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 ST33GxxxSM 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.

The ST33GxxxSM embeds a MIFARE® Library fully compatible with the widely deployed MIFARE® Classic and MIFARE DESFire® EV1 contactless scheme. Both MIFARE® Classic and MIFARE DESFire® EV1 can be used in mobile contactless applications such as Transport & Event ticketing, Access Control, Loyalty programs.

An SPI Master/Slave interface is also available for communication in non-SIM applications.

The ST33GxxxSM features hardware accelerators for advanced cryptographic functions. The EDES peripheral provides a secure DES (Data Encryption Standard) algorithm implementation, while the NESCRYPT crypto-processor efficiently supports the public key algorithm. The AES peripheral ensures secure and fast AES algorithm implementation.

The ST33GxxxSM operates in the –25 to +85 °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.

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)
    • Delivery forms:
      • D18 micromodules
      • sawn 12” wafers
      • ECOPACK®-compliant WLCSP8, DFN8 5 × 6 mm and UFDFN8 4.2 × 4 mm packages
  • Software features
    • Secure Flash memory loader
    • Flash memory drivers
    • MIFARE® libraries1: MIFARE® Classic, MIFARE DESFire® EV1
  • Security features
    • MIFARE® Classic cryptography hardware accelerator
    • 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


Technical Documentation

Product Specifications
Description Version Size
DB2372 DB2372: Secure MCU with 32-bit ARM® SecurCore® SC300™ CPU, MIFARE®, SWP, ISO, SPI, GPIO interface and high-density Flash memory 2.0 199 KB

Publications and Collaterals

Description Version Size
Brochure Secure MCUs - M2M for industrial and automotive 1 MB
Brochure Secure MCUs Secure Solutions 1.2 1 MB
Support & Community

Sample & Buy

Part Number Marketing Status Unit Price (US$) * Quantity Package ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
ST33G512SM Active - - DICE 5A002A1A 5A002A1A - MORE INFO No availability reported, please contact our Sales office

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ST33G512SM ActiveDICEIndustrialN/A

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.