ST23 Dual Interface Secure Microcontroller with 8 KBytes of EEPROM, enhanced security and Nescrypt cryptoprocessor

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  • The ST23YR08 product is a serial access microcontroller specially designed for secure smartcard applications.

    It is based on an enhanced STMicroelectronics 8/16-bit CPU core offering 16 Mbytes linear addressing space. It is 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 7816-3 EMV-compliant asynchronous receiver transmitter (IART) communication peripheral is available.

    Key Features

    • Hardware featuresEnhanced 8/16-bit ST23 CPU core with 16 Mbytes linear addressable memory230 Kbytes of User ROM4 Kbytes of User RAM2 Kbytes of NESCRYPT RAM8 Kbytes of User EEPROM including 128 bytes of User OTP area:30-year data retention at 25° C500,000 Erase/Write cycles endurance typical at 25° C1 to 64 bytes Erase or Program in 2 msEnhanced NESCRYPT crypto-processor for public key cryptographyHardware security enhanced DES acceleratorThree 8-bit timers with watchdog and interrupt capability3 V and 5 V supply voltage rangesExternal clock frequency up to 10 MHzHigh performance provided by:CPU clock frequency up to 29 MHzAdjustable clocks for better granularityPower-saving Standby stateContact assignment compatible with ISO/IEC 7816-3 standardsAsynchronous 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
    • Security featuresActive shieldMonitoring of environmental parametersProtection mechanisms against faultsAIS-31 class P2 compliant true random number generator (TRNG)ISO 3309 CRC calculation blockMemory protection unit (MPU)Unique serial number on each die
    • Contactless featuresComplies with ISO/IEC 14443 type B, Innovatron (type B’) and PayPass™ standards13.56 MHz carrier frequencyRF frame up to 512 bytesRFUART (RF universal asynchronous receiver transmitter) up to 848 Kbits/s0.5 Kbytes dedicated RFUART RAMBPSK - NRZ load modulation (card-to-reader)8 to 14% amplitude modulation reception (reader to card) as minimum rangeEnhanced RF performance provided by CPU clock frequency up to 29 MHz coupled with clock frequency divider
    • Development environment Interface with RF readers supported through a library of embedded software functions compatible with ISO/IEC 14443 standards. 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

Circuit Diagram

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ST23YR08
Active
DICE NEC - No availability of distributors reported, please contact our sales office

ST23YR08

Marketing Status

Active

Package

DICE

ECCN (EU)

NEC

Country of Origin

-

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

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Technical Documentation

    • Description Version Size Action
      DB0989
      Dual contactless smartcard MCU with 8 Kbytes EEPROM, enhanced security, cryptoprocessor and optimized RF performance
      1.2
      80.8 KB
      PDF
      DB0989

      Dual contactless smartcard MCU with 8 Kbytes EEPROM, enhanced security, cryptoprocessor and optimized RF performance

Publications and Collaterals

    • Description Version Size Action
      Brochure Secure MCUs - Secure Solutions 1.2
      1.11 MB
      PDF

      Brochure Secure MCUs - Secure Solutions

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ST23YR08
Active
DICE Industrial N/A

ST23YR08

Package:

DICE

Material Declaration**:

Marketing Status

Active

Package

DICE

Grade

Industrial

RoHS Compliance Grade

N/A

(**) The Material Declaration forms available on st.com 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.