This document describes the features and characteristics of the ST23ZC04 secure microcontroller, including enhanced security, 4K bytes of EEPROM, and a contactless-only interface.
The ST23ZC04 is a secure microcontroller specifically designed for smartcard applications. It features an enhanced 8/16-bit ST23 CPU core with up to 28 MHz clock frequency and includes 92 Kbytes of User ROM, 4 Kbytes of User RAM, and 4 Kbytes of User EEPROM.
The device supports contactless communication via a built-in RF UART compliant with ISO/IEC 14443 Type A, B, and B' standards at a carrier frequency of 13.56 MHz. Security features include an active shield, monitoring of environmental parameters, a true random number generator (TRNG), AES accelerator, and Triple DES accelerator.
| CPU Core | Enhanced 8/16-bit ST23 CPU core |
|---|---|
| User ROM Size | 92 Kbytes |
| User RAM Size | 4 Kbytes |
| EEPROM Size | 4 Kbytes |
| Operating Temperature | -25° to +85°C |
| CPU Clock Frequency | Up to 28 MHz |
| RF Carrier Frequency | 13.56 MHz |
| Compliance Standards | ISO/IEC 14443 Type A, B and B' |
| RFUART Speed | Up to 848 Kops |
The CPU clock frequency can go up to 28 MHz.
It complies with ISO/IEC 14443 Type A, B and B', and PayPass™ standards.
The device offers 30-year data retention at 25°C.