ST23YS08 is a smart card MCU with enhanced security and 8 KBytes high-density EEPROM. It is primarily used in the banking sector, targeting VISA and CAST certificates. The hardware features include an enhanced 8/16-bit CPU core, 16 MBytes linear addressable memory, 108 Kbytes user ROM, 2 Kbytes user RAM, 8 Kbytes user EEPROM, and more.
The ST23YS08 is a serial access microcontroller designed specifically for secure smartcard applications, such as banking targeting VISA and CAST certificates. It is based on an enhanced STMicroelectronics 8/16-bit CPU core with 16 MBytes of linear addressable memory, including 108 Kbytes of User ROM and 2 Kbytes of User RAM.
The device incorporates advanced hardware security features, including an Enhanced DES accelerator compliant with FIPS 140-2 and AIS-31 class P2, a True Random Number Generator (TRNG), and a unique serial number on each die. It supports a serial interface fully compatible with the ISO 7816-3 standard and includes an Asynchronous Receiver Transmitter (UART) for high-speed serial data support.
| CPU Core | Enhanced 8/16-bit |
|---|---|
| Linear Addressable Memory | 16 MBytes |
| User ROM | 108 Kbytes |
| User RAM | 2 Kbytes |
| User EEPROM | 8 Kbytes |
| EEPROM Data Retention | 10-year |
| EEPROM Endurance | 500,000 Erase/Write cycles |
| CPU Clock Frequency | up to 29 MHz |
| Supply Voltage | 3V and 5V |
| External Clock Frequency | 1 up to 5 MHz |
| ESD Protection | greater than 5 kV (HBM) |
The major applications include banking targeting VISA and CAST certificates.
It is FIPS 140-2 and AIS-31 class P2 compliant.
Yes, a serial interface fully compatible with the ISO 7816-3 standard (T = 0 and T = 1) is available.