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ST23YR04：ST23 Dual Interface Secure MCU with 4 KBytes of EEPROM , enhanced security and Nescrypt cryptoprocessor, RF Type B,B'

ST23YR04 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.

An RF Interface including an RF universal asynchronous receiver transmitter (RF UART) enables contactless communication up to 848 Kbits/s compatible with the ISO 14443-B standard and also enables Innovatron (type B’) communication.

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 29 MHz
  • 500,000 erase/write cycles at 25° C
  • 500,000 Erase/Write cycles endurance typical at 25° C
  • 1 to 64 bytes Erase or Program in 2 ms
  • 4 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
    • 500,000 Erase/Write cycles endurance typical at 25° C
    • 1 to 64 bytes Erase or Program in 2 ms
  • Enhanced NESCRYPT crypto-processor for public key cryptography
  • 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
    • 500,000 erase/write cycles at 25° C
    • 500,000 Erase/Write cycles endurance typical at 25° C
    • 1 to 64 bytes Erase or Program in 2 ms
    • 4 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
      • 500,000 Erase/Write cycles endurance typical at 25° C
      • 1 to 64 bytes Erase or Program in 2 ms
    • Enhanced NESCRYPT crypto-processor for public key cryptography
    • Three 8-bit timers with watchdog and interrupt capability
    • 3 V and 5 V supply voltage ranges
    • External clock frequency up to 10 MHz
  • Adjustable clocks for better granularity
  • 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 then 6 kV (HBM) for contact pads and 4 kV for contactless pads
• Contactless features
  • Complies with ISO/IEC 14443 type B, Innovatron (type B’) and PayPass™ standards
  • 13.56 MHz carrier frequency
  • RF frame up to 512 bytes
  • RFUART (RF universal asynchronous receiver transmitter) up to 848 Kbps
  • 0.5 Kbytes dedicated RFUART RAM
  • BPSK - NRZ load modulation (card-to-reader)
  • 8 to 14% amplitude modulation reception (reader to card) as minimum range
  • Enhanced RF performance provided by CPU clock frequency up to 29 MHz coupled with clock frequency divider
• Security features
  • Active shield
  • Hardware security enhanced DES accelerator
  • Monitoring of environmental parameters
  • Protection mechanisms against faults
  • 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
• Development environment
  • C compiler, simulator and emulator
  • 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