The ST23YR80 is a serial access secure microcontroller custom-designed for secure smartcard applications.
●It is based on an enhanced STMicroelectronics 8/16-bit CPU core offering 16 Mbytes linear addressing space. ST23YR80 devices are manufactured using an advanced highly reliable ST CMOS EEPROM technology.
●An RF Interface including an RF universal asynchronous receiver transmitter (RFUART) enables contactless communication up to 848 Kbits/s compatible with the ISO/IEC 14443-B standard.
●Moreover, an ISO/IEC 7816-3 EMV-compliant asynchronous receiver transmitter (IART) communication peripheral is available.
●Key Features
● Hardware 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 endurance typical at 25° C
● 1 to 64 bytes Erase or Program in 1.5 ms
● Operating temperature: –25° to +85° C (certain restrictions apply)
● 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 then 6 kV (HBM) for contact pads and 4 kV for contactless pads
● Contactless features
● Complies with ISO/IEC 14443 Type B standards
● 13.56 MHz carrier frequency
● 512-byte RF frame buffer in dedicated RFUART RAM
● RFUART (RF universal asynchronous receiver transmitter) up to 848 Kbps
● 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
● 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 3309 CRC calculation block
● Memory protection unit (MPU)
● Unique serial number on each die
● Development environment
● Reference implementation 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
