ST32G256M:Enhanced ST32 secure micro for M2M

The ST32GxxxM is a serial access microcontroller designed for machine-to-machine (M2M) applications in the industrial environment that incorporates the most recent generation of ARM®processors for embedded systems. Its Cortex®-M3 32-bit RISC core operating at a 15-MHz frequency brings great performance and excellent code compacity to the application thanks to the Thumb®-2 instruction set.

The 512-Kbyte high-speed embedded Flash memory introduces more flexibility to the system. This Flash memory has an improved cycling capability compared to the ST32F512-M.

The ST32GxxxM 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 ST32GxxxM 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.

Key Features

  • Hardware features
    • Typical CPU clock frequency of 17.5 MHz
    • External clock multiplier (2x, 3x, and 4x)
    • 512 Kbytes of user Flash memory with OTP area:
      • 10-year data retention at 105 °C, or 17 years at 85 °C
      • 500 000 Erase/Write cycles per page
      • Page granularity of 128 Bytes
      • Block granularity: 1 Kbyte
      • 128 bytes of OTP for user
      • Page Erase time 4 ms
      • Block Erase 1 Kbyte in 20 ms
      • Programming performance up to 10 μs/byte
      • Flash Erase / Write Protection software programmable on 32 Kbyte sectors
    • Asynchronous Receiver Transmitter supporting ISO/IEC 7816-3 T=0 and T=1 protocols
    • Two 16-bit timers with interrupt capability
    • 1.8 V, 3 V and 5 V supply voltage ranges
    • External clock frequency from 1 up to 7.5 MHz
    • High performance provided by:
      • Typical CPU clock frequency of 17.5 MHz
      • External clock multiplier (2x, 3x, and 4x)
      • 512 Kbytes of user Flash memory with OTP area:
        • 10-year data retention at 105 °C, or 17 years at 85 °C
        • 500 000 Erase/Write cycles per page
        • Page granularity of 128 Bytes
        • Block granularity: 1 Kbyte
        • 128 bytes of OTP for user
        • Page Erase time 4 ms
        • Block Erase 1 Kbyte in 20 ms
        • Programming performance up to 10 μs/byte
        • Flash Erase / Write Protection software programmable on 32 Kbyte sectors
      • Asynchronous Receiver Transmitter supporting ISO/IEC 7816-3 T=0 and T=1 protocols
      • Two 16-bit timers with interrupt capability
      • 1.8 V, 3 V and 5 V supply voltage ranges
      • External clock frequency from 1 up to 7.5 MHz
      • Programming performance up to 10 μs/byte
      • Flash Erase / Write Protection software programmable on 32 Kbyte sectors
    • 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)
    • Delivery forms: 8-pin DFN (6 × 5 mm) ECOPACK® package, D68 and wafer
  • 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 memory loader
    • Flash memory 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
  • Applications
    • Vending machines
    • Remote control/monitoring
    • Alarms and security
    • Consumer electronics
    • Mobile health (mHealth)
Product Specifications
DescriptionVersionSize
DB2806: M2M industrial secure MCU with 32-bit ARM® Cortex®-M3 CPU and up to 512 Kbytes of high density Flash memory1.0208 KB
Brochures
DescriptionVersionSize
Brochure_Secure MCUs_Secure Soluions_RS6103_BRSMCU0616.pdf1 MB
Sample & Buy
Part NumberUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
ST32G256M--NECEAR99-
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
ST32G256MDICEIndustrialN/A
M2M industrial secure MCU with 32-bit ARM® Cortex®-M3 CPU and up to 512 Kbytes of high density Flash memory ST32G256M
ST Payment Secure Solution - Java Card™ platform Dual interface with 240 Kbyte of user NVM STPAY-GOLD