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ST23ZL18：ST23 Contact Secure MCU with 18 Kbytes EEPROM, enhanced security and Nescrypt cryptoprocessor

The ST23ZL18 is a serial access microcontroller custom-designed for secure smartcard applications.

It is based on an enhanced STMicroelectronics 8/16-bit CPU core offering 16 Mbytes of linear addressing space. ST23ZL18 devices 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.

Key Features

• Hardware features
  • CPU clock frequency up to 27 MHz
  • 30-year data retention
  • 500,000 Erase/Write cycles endurance typical at 25° C
  • 1 to 64 bytes Erase or Program in 1.5 ms
  • 18 Kbytes of User EEPROM including 128 bytes of User OTP area:
    • Highly reliable CMOS EEPROM submicron technology
    • 30-year data retention
    • 500,000 Erase/Write cycles endurance typical at 25° C
    • 1 to 64 bytes Erase or Program in 1.5 ms
  • Three 8-bit timers with watchdog and interrupt capability
  • 3.3 V and 5 V supply voltage ranges
  • External clock frequency up to 10 MHz
  • High performance provided by:
    • CPU clock frequency up to 27 MHz
    • 30-year data retention
    • 500,000 Erase/Write cycles endurance typical at 25° C
    • 1 to 64 bytes Erase or Program in 1.5 ms
    • 18 Kbytes of User EEPROM including 128 bytes of User OTP area:
      • Highly reliable CMOS EEPROM submicron technology
      • 30-year data retention
      • 500,000 Erase/Write cycles endurance typical at 25° C
      • 1 to 64 bytes Erase or Program in 1.5 ms
    • Three 8-bit timers with watchdog and interrupt capability
    • 3.3 V and 5 V supply voltage ranges
    • External clock frequency up to 10 MHz
  • Power-saving Idle 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 5 kV (HBM)
• Security features
  • Active shield
  • Enhanced NESCRYPT crypto-processor for public key cryptography
  • Hardware security enhanced DES accelerator
  • Monitoring of environmental parameters
  • Protection mechanisms against faults
  • AIS-31 class P2 compliant true random number generator (TRNG)
  • ISO/IEC 13239 CRC calculation block
  • Memory protection unit (MPU)
  • Unique serial number on each die
• 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

Product Specifications

Sample & Buy

Quality & Reliability