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Authentication & Brand protection secure solution

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Product overview


The STSAFE-A100 is a highly secure solution that acts as a secure element providing authentication and data management services to a local or remote host. It consists of a full turnkey solution with a secure operating system running on the latest generation of secure microcontrollers.

The STSAFE-A100 can be integrated in IoT (Internet of things) devices, smart-home, smart-city and industrial applications, consumer electronics devices, consumables and accessories.

  • All features

    • Authentication (of peripherals, IoT and USB Type-C devices)
    • Secure channel establishment with remote host including transport layer security (TLS) handshake
    • Signature verification service (secure boot and firmware upgrade)
    • Usage monitoring with secure counters
    • Pairing and secure channel with host application processor
    • Wrapping and unwrapping of local or remote host envelopes
    • On-chip key pair generation
    • Security features
      • Latest generation of highly secure MCUs
        • CC EAL5+ AVA_VAN5 Common Criteria certified
        • Active shield
        • Monitoring of environmental parameters
        • Protection mechanism against faults
        • Unique serial number on each die
        • Protection against side-channel attacks
      • Advanced asymmetric cryptography
        • Elliptic curve cryptography (ECC) with NIST or Brainpool 256-bit and 384-bit curves
        • Elliptic curve digital signature algorithm (ECDSA) with SHA-256 and SHA-384 for digital signature generation and verification
        • Elliptic curve Diffie-Hellman (ECDH) for key establishment
      • Advanced symmetric cryptography
        • Key wrapping and unwrapping using AES-128/AES-256
        • Secure channel protocols using AES-128
      • Secure operating system
        • Secure STSAFE-A100 kernel for authentication and data management
        • Protection against logical and physical attacks
    • Hardware features
      • Highly secure MCU platform
      • 6 Kbytes of configurable non-volatile memory
        • Highly reliable CMOS EEPROM technology
        • 30 years’ data retention at 25 °C
        • 500 000 erase / program cycles endurance at 25 °C
        • 1.62 V to 5.5 V continuous supply voltage
      • Operating temperature: −40 to 105 °C
    • Protocol
      • I²C-bus slave interface
        • Up to 400 kbps transmission speed (Fast mode) and true open-drain pads
        • 7-bit addressing
    • Packages
      • ECOPACK®-compliant SO8N 8-lead plastic small outline and UFDFPN 8-lead ultra thin profile fine pitch dual flat packages

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STMicroelectronics - STSAFE-A100

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Quality and Reliability

Part Number Marketing Status Package RoHS Compliance Grade Material Declaration**
UFDFPN 8 2x3x0.6 N/A



UFDFPN 8 2x3x0.6

Material Declaration**:

Marketing Status



UFDFPN 8 2x3x0.6

RoHS Compliance Grade


(**) The Material Declaration forms available on 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.

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