ST23L80A Active

ST23 Contact Secure MCU with 48 Kbytes EEPROM, enhanced security and Nescrypt cryptoprocessor
Supply Voltage Min Volt2.7
Supply Voltage Max Volt5.5
CoreST23
ECCN US5A002A1
ECCN EU5A002A1
Packing TypeNot Applicable
ROHS Compliance GradeN/A
GradeIndustrial
Package NameDICE
Key Features
  • Enhanced 8/16-bit ST23 CPU core with 16 Mbytes linear addressable memory
  • 390 Kbytes of User ROM
  • 6 Kbytes of User RAM
  • 2 Kbytes of NESCRYPT RAM
  • 80 Kbytes of User EEPROM including 128 bytes of User OTP area:
    • 30-year data retention at 25° C
    • 500,000 erase/write cycles at 25° C
    • 1 to 64 bytes Erase or Program in 1.5 ms
  • Operating temperature: -25° to +85° C
  • Enhanced NESCRYPT crypto-processor for public key cryptography
  • FIPS PUB 197 -compliant AES accelerator
  • Three 8-bit timers with watchdog and interrupt capability
  • 3 V and 5 V supply voltage ranges
  • External clock frequency up to 10 MHz
  • High performance provided by:
    • CPU clock frequency up to 29 MHz
  • Power-saving Standby state
  • Contact assignment compatible with ISO/IEC 7816-3 standards
  • Asynchronous receiver transmitter (IART) for high speed serial data support (ISO/IEC 7816-3 and EMV™ compliant)
  • ESD protection greater than 6 kV (HBM) for contact pads and 4 kV for contactless pads
  • Security features
    • Active shield
    • Hardware security enhanced DES accelerator
    • Monitoring of environmental parameters
    • Protection mechanisms against faults
    • EAL6+ security certification according to Common Criteria 3.1 methodology
    • DPA, SPA and DFA resistant
    • AIS-31 class P2 compliant true random number generator (TRNG)
    • ISO 3309 CRC calculation block
    • Memory protection unit (MPU)
    • Unique serial number on each die

ST23L80A devices are serial access microcontrollers custom-designed for secure smartcard applications.


They are based on an enhanced STMicroelectronics 8/16-bit CPU core offering 16 Mbytes linear addressing space. They are manufactured using an advanced highly reliable ST CMOS EEPROM technology.


Moreover, an ISO/IEC 7816-3 EMV-compliant asynchronous receiver transmitter (IART) communication peripheral is available.

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