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.
- Hardware features
Enhanced 8/16-bit ST23 CPU core with 16 Mbytes linear addressable memory 230 Kbytes of User ROM 4 Kbytes of User RAM 2 Kbytes of NESCRYPT RAM 8 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 2 ms Enhanced NESCRYPT crypto-processor for public key cryptography Hardware security enhanced DES 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 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
- Security features
Active shield 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
- 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 Kbits/s 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
- 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
- Hardware features