This document describes a dual contactless smartcard MCU called ST23YR48, which features 48 Kbytes EEPROM, enhanced security, cryptoprocessor, and optimized RF performance.
The ST23YR48 is a serial access microcontroller designed specifically for secure smartcard applications. It features an enhanced 8/16-bit CPU core with up to 29 MHz clock frequency and includes 390 Kbytes of User ROM, 6 Kbytes of User RAM, and 48 Kbytes of EEPROM.
The device supports both contactless communication via RF UART (up to 848 Kbits/s) compliant with ISO/IEC 14443 Type B standards and contact communication via IART compliant with ISO/IEC 7816-3. It also incorporates advanced security features such as a hardware-enhanced DES accelerator, AES crypto-processor, and a true random number generator.
| EEPROM Size | 48 Kbytes |
|---|---|
| User ROM Size | 390 Kbytes |
| User RAM Size | 6 Kbytes |
| CPU Clock Frequency | Up to 29 MHz |
| RFUART Speed | Up to 848 Kbits/s |
| Supply Voltage Ranges | 3 V and 5 V |
It supports contactless communication compliant with ISO/IEC 14443 Type B and contact communication compliant with ISO/IEC 7816-3.
The RFUART supports a speed of up to 848 Kbits/s.
Yes, it includes an enhanced NESCRYPT crypto-processor, a hardware-enhanced DES accelerator, and a true random number generator.