安全的ST23系列是智能卡IC领域的参考基准，通过了CC EAL6+级认证。 至今已有20多亿件ST23器件被使用在包括银行、电子政务、交通或付费电视等安全应用中，并且利用各种选项实现了安全应用开发，例如认证密码库、接触式、非接触式和USB接口。
- SC23ZD12 ST23 Contact Secure MCU with 12Kbytes EEPROM, I2C slave interface, enhanced security and Nescrypt cryptoprocessor
- SC23Z018 ST23 Contact Secure MCU with 18 Kbytes EEPROM, I2C slave interface, enhanced security and Nescrypt cryptoprocessor
- SB23Z012 ST23 Contact Secure MCU with 12 Kbytes EEPROM, enhanced security
- SB23ZE08 ST23 Contact Secure MCU with 8 Kbytes EEPROM, enhanced security
- ST23ZC08 ST23 Contactless Secure MCU with 8 KBytes EEPROM, enhanced security and DES/AES cryptoprocessor, RF Type A,B,B'
- ST23ZR08 ST23 Dual Interface Secure MCU with 8 KBytes EEPROM, enhanced security and DES/AES cryptoprocessor,RF Type A,B,B' (Contactless low end ID-DL/DES)
- ST23ZR04 ST23 Dual Interface Secure MCU with 4 KBytes EEPROM, enhanced security and DES/AES cryptoprocessor,RF Type A,B,B'
