Design Win

ST32 Contact ARM® Cortex®-M3 based Secure Microcontroller

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Product overview


The ST32F384 is a serial access microcontroller designed for secure mobile applications that incorporates the most recent generation of ARM processors for embedded systems. Its Cortex™-M3 32-bit RISC core operating at a 20-MHz frequency brings great performance and excellent code compacity to the application thanks to the Thumb®-2 instruction set.

The high-speed embedded Flash 384-Kbyte memory introduces more flexibility to the system.

The ST32F384 also offers a serial communication interface fully compatible with the ISO/IEC 7816-3 standard (T=0, T=1) .

Two general-purpose 16-bit timers are available.

A hardware Data Encryption Standard (DES) accelerator can be used to the user to optimize the application performance. A software library is provided for Advanced Encryption Standard (AES) implementation.

The ST32F384 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.

  • All features

    • Hardware features
      • ARM Cortex™-M3 32-bit RISC core
      • Up to 8 Kbytes of user RAM
      • Up to 384 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 data encryption standard (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 and emulator

EDA Symbols, Footprints and 3D Models

STMicroelectronics - ST32F384

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