This data brief introduces the ST23YT34 smartcard MCU features, including an 8/16-bit ST23 CPU core, 16 Mbytes linear addressable memory, 110 Kbytes user ROM, 5 Kbytes user RAM, 2 Kbytes NESCRYPT RAM, 34 Kbytes user EEPROM and 128 Bytes user OTP area.
The ST23YT34 is a serial access microcontroller designed specifically for secure smartcard applications. It utilizes an enhanced 8/16-bit ST23 CPU core with 16 Mbytes of linear addressable memory and includes 34 KBytes of User EEPROM.
Key hardware features include a Full-speed USB 2.0 interface, an ISO 7816-3 compliant Asynchronous Receiver Transmitter (IART), and various security mechanisms such as a Hardware Security Enhanced DES accelerator and a True Random Number Generator (TRNG). The device operates with a supply voltage range of 3V to 5.25V.
| CPU Core | Enhanced 8/16-bit ST23 CPU core |
|---|---|
| User ROM | 110 Kbytes |
| User RAM | 5 Kbytes |
| EEPROM Size | 34 Kbytes |
| Operating Temperature (USB mode) | -20 to 70 °C |
| CPU Clock Frequency | Up to 29 MHz |
| Supply Voltage Range | 3V to 5.25V |
It is specially designed for secure smartcard applications.
Yes, it features a Full-speed USB 2.0 interface.
It includes an Enhanced NESCRYPT crypto-processor, Hardware Security Enhanced DES accelerator, and a True Random Number Generator (TRNG).