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The ST31 contact series offers secure microcontrollers specifically designed for contact smartcard applications. They are based on the latest ARM SC000 32-bit CPU core and offer a wide range of memory sizes and cryptographic algorithms.
As well as DES and AES cryptographic coprocessors, the ST31 family comes with a Nescrypt public key coprocessor including RSA and ECC algorithms and the optional Neslib certified crypto library.
Products address security certifications according to EMVCo, ZKA, PboC and Common Criteria EAL5+/EAL6+ levels.
| Part Number | Marketing Status | General Description | Core | Internal ROM Size nom (kB) | FLASH Size | 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 |
| SC31Z052 | Active | ST31 Contact Secure Microcontroller with 52 KBytes of EEPROM, enhanced security and Nescrypt cryptoprocessor | ARM SC000 | 320 | - | 52 | 8 | ISO7816 | AES Rindael;Nescrypt;Triple DES | EMVCo , EAL5+ target, ZKA target | W/o Kernel SW | - | 1.62 | 5.5 | 90 nm |
| SC31ZD16 | Active | ST31 Contact Secure Microcontroller with 16 KBytes of EEPROM, enhanced security and Nescrypt cryptoprocessor | ARM SC000 | 320 | - | 16 | 8 | ISO7816 | AES Rindael;Nescrypt;Triple DES | EMVCo , EAL5+ target | W/o Kernel SW | - | 1.62 | 5.5 | 90 nm |
| SC31ZD22 | Active | ST31 Contact Secure Microcontroller with 22 KBytes of EEPROM, enhanced security and Nescrypt cryptoprocessor | ARM SC000 | 320 | - | 22 | 8 | ISO7816 | AES Rindael;Nescrypt;Triple DES | EMVCo , EAL5+ target | W/o Kernel SW | - | 1.62 | 5.5 | 90 nm |
| SC31ZD38 | Active | ST31 Contact Secure Microcontroller with 38 KBytes of EEPROM, enhanced security and Nescrypt cryptoprocessor | ARM SC000 | 320 | - | 38 | 8 | ISO7816 | AES Rindael;Nescrypt;Triple DES | EMVCo , EAL5+ target | W/o Kernel SW | - | 1.62 | 5.5 | 90 nm |
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