This document describes the hardware features of the ST23YR80 dual contactless smartcard MCU, including the enhanced CPU core, user ROM and RAM, user EEPROM, temperature range, and encryption capabilities.
The ST23YR80 is a serial access microcontroller designed specifically for secure smartcard applications. It features an enhanced 8/16-bit CPU core with up to 80 Kbytes of User EEPROM, including OTP areas for data retention and write cycles. The device supports both contactless communication compliant with ISO/IEC 14443 type B standards at 13.56 MHz and asynchronous serial data support via an EMV-compliant peripheral.
| EEPROM Size | 80 Kbytes |
|---|---|
| Operating Temperature | -25° to +85° C |
| CPU Clock Frequency | up to 29 MHz |
| RFUART Speed | 848 Kops |
| Data Retention | 30-year at 25° C |
It complies with ISO/IEC 14443 type B standards for contactless communication and ISO/IEC 7816-3 for serial data support.
Major applications include ePassport, eGovernment, and ID applications such as driving licenses.