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The ST23 contactless and dual-interface series offer secure microcontrollers specifically designed for contactless smartcard applications. They are based on ST's enhanced 8/16-bit CPU core and offer a wide range of memory sizes, cryptographic algorithms and interfaces including ISO 14443 Type A, B, B’ protocol.
As well as DES and AES cryptographic co-processors, the ST23 family comes with a Nescrypt public key co-processor including RSA and ECC algorithms and the optional Neslib certified crypto library.
Products are certified according to EMVCo and Common Criteria EAL5+/EAL6+ levels.
| Part Number | Marketing Status | General Description | Core | Internal ROM Size nom (kB) | EEPROM Size nom (kB) | Internal RAM Size nom (kB) | Communication standards supported | Cryptography | Security Certification | Device Configuration | Software Kernel | Supply Voltage(Vcc) min (V) | Supply Voltage(Vcc) max (V) | Technology |
| ST23R160 | Active | ST23 Dual Interface Secure MCU with 160 KBytes EEPROM, enhanced security and Nescrypt cryptoprocessor, RF Type B (Contectless High end ID-Passport/PKI) | ST23 | 390 | 160 | 8 | ISO7816, ISO14443 TYPE B | AES Rindael;DES;Nescrypt | EMVCo, FIPS PUB 197, EAL6+ | W/o Kernel SW | - | 2.7 | 5.5 | 0.13 um |
| ST23YR04 | Active | ST23 Dual Interface Secure MCU with 4 KBytes of EEPROM , enhanced security and Nescrypt cryptoprocessor, RF Type B,B' | ST23 | 230 | 4 | 6 | ISO7816, ISO14443 TYPE B, B' | DES;Nescrypt | EMVCo, EAL5+ | W/o Kernel SW | - | 2.7 | 5.5 | 0.13 um |
| ST23YR08 | Active | ST23 Dual Interface Secure Microcontroller with 8 KBytes of EEPROM, enhanced security and Nescrypt cryptoprocessor | ST23 | 230 | 8 | 6 | ISO7816,ISO14443 TYPE B, B' | DES;Nescrypt | EMVCo, EAL5+ | W/o Kernel SW | - | 2.7 | 5.5 | 0.13 m |
| ST23YR18 | Active | ST23 Dual Interface Secure MCU with 18 KBytes of EEPROM, enhanced security and Nescrypt cryptoprocessor, Rf Type B, B' | ST23 | 230 | 18 | 6 | ISO7816, ISO14443 TYPE B, B' | DES;Nescrypt | EMVCo, EAL5+ | W/o Kernel SW | - | 2.7 | 5.5 | 0.13 um |
| ST23YR48 | Active | ST23 Dual Interface Secure MCU with 48 KBytes of EEPROM, enhanced security and Nescrypt cryptoprocessor, RF Type B (Contactless ID-Passport/PKI) | ST23 | 390 | 48 | 8 | IS07816, ISO14443 Type B | DES;Nescrypt | EMVCo,EAL6+ | W/o Kernel SW | - | 2.7 | 5.5 | 0.13 um |
| ST23YR80 | Active | ST23 Dual Interface Secure MCU with 80 KBytes of EEPROM, enhanced security and Nescrypt cryptoprocessor, RF Type B (Contactless High end ID-Passport/PKI) | ST23 | 390 | 80 | 8 | ISO7816, ISO14443 TYPE B | DES;Nescrypt | EMVCo ,EAL6+ | W/o Kernel SW | - | 2.7 | 5.5 | 0.13 um |
| ST23ZC02 | Active | ST23 Contactless Secure MCU with 2 KBytes EEPROM, enhanced security and DES/AES cryptoprocessor, RF Type A,B,B' | ST23 | 92 | 2 | 4 | ISO14443 TYPE A, B, B' | AES Rindael;Triple DES | EMVCo, EAL5+ target | W/o Kernel SW | - | 2.7 | 5.5 | 90 nm |
| ST23ZC04 | Active | ST23 Contactless Secure MCU with 4 KBytes EEPROM, enhanced security and DES/AES cryptoprocessor, RF Type A,B,B' | ST23 | 92 | 4 | 4 | ISO14443 TYPE A, B, B' | AES Rindael;Triple DES | EMVCo, EAL5+ target | W/o Kernel SW | - | 2.7 | 5.5 | 90 nm |
| ST23ZC08 | Active | ST23 Contactless Secure MCU with 8 KBytes EEPROM, enhanced security and DES/AES cryptoprocessor, RF Type A,B,B' | ST23 | 92 | 8 | 4 | ISO14443 TYPE A, B, B' | AES Rindael;Triple DES | EMVCo, EAL5+ target | W/o Kernel SW | - | 2.7 | 5.5 | 90 nm |
| ST23ZR02 | Active | ST23 Dual Interface Secure MCU with 2 KBytes EEPROM, enhanced security and DES/AES cryptoprocessor, RF Type A,B,B' | ST23 | 92 | 2 | 4 | ISO7816, ISO14443 TYPE A, B, B' | AES Rindael;Triple DES | EMVCo, EAL5+ | W/o Kernel SW | - | 2.7 | 5.5 | 90 nm |
| ST23ZR04 | Active | ST23 Dual Interface Secure MCU with 4 KBytes EEPROM, enhanced security and DES/AES cryptoprocessor,RF Type A,B,B' | ST23 | 92 | 4 | 4 | ISO7816, ISO14443 TYPE A, B, B' | AES Rindael;Triple DES | EMVCo, EAL5+ | W/o Kernel SW | - | 2.7 | 5.5 | 90 nm |
| ST23ZR08 | Active | 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) | ST23 | 92 | 8 | 4 | ISO7816, ISO14443 TYPE A, B, B' | AES Rindael;Triple DES | EMVCo, EAL5+ | W/o Kernel SW | - | 2.7 | 5.5 | 90 nm |
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