ST23ZL34 is an enhanced security smartcard MCU produced by ST company, which has a crypto-processor and 34 Kbyte EEPROM.
The ST23ZL34 is a serial access microcontroller designed specifically for secure smartcard applications. It is based on an enhanced STMicroelectronics 8/16-bit CPU core offering 16 Mbytes of linear addressing space and is manufactured using highly reliable ST CMOS EEPROM technology.
The device includes an ISO 7816-3 EMV-compliant asynchronous receiver transmitter (IART) communication peripheral. Key features include an enhanced NESCRYPT crypto-processor for public key cryptography, a hardware security enhanced DES accelerator, and a unique serial number on each die. It supports 3V and 5V supply voltage ranges with a CPU clock frequency up to 29 MHz.
| CPU Core | Enhanced 8/16-bit ST23 CPU core |
|---|---|
| Linear Addressable Memory | 16 Mbytes |
| User ROM | 300 Kbytes |
| User RAM | 6 Kbytes |
| User EEPROM | 34 Kbytes |
| OTP Area | 128 Bytes |
| Data Retention | 30 years |
| Erase/Write Cycles | 500,000 |
| Erase or Program Time | 1.5 ms |
| Crypto-processor | Enhanced NESCRYPT |
| Timers | Three 8-bit timers |
| Supply Voltage | 3V and 5 V |
| External Clock Frequency | 10 MHz |
| CPU Clock Frequency | 29 MHz |
| ESD Protection | Greater than 5 kV (HBM) |
It is a serial access microcontroller specially designed for secure smartcard applications.
The CPU clock frequency can go up to 29 MHz.
Yes, it features an enhanced NESCRYPT crypto-processor for public key cryptography.
The device offers 30-year data retention.