STMicro’s Dual-Interface Secure MCU Serves Contactless Banking and e-ID Apps

July 22, 2019 Alix Paultre

STMicroelectronics’ ST31P450 dual-interface secure microcontroller is built on the 32-bit Arm SecurCore SC000 secure processor meeting ISO 7816 and ISO 14443 Type A for smart-card and contactless standards. The device supports all MIFARE libraries, including MIFARE Classic, MIFARE Plus, and MIFARE DESFire. ST’s 40nm Flash technology enables a small die for dual-interface use cases.

Upgraded RF performance ensures reliable wireless connections, and low-power cryptographic engines minimize the energy budget and ensure performance at low RF-field strength while executing cryptographic operations. The ST31P450 also comes with optimized loading firmware for card provisioners, offering post-issuance capability. The ST31P450 secure microcontroller and associated cryptographic libraries are expected to achieve Common Criteria EAL5+, as well as EMVCo and CUP (China UnionPay) certifications within the coming months. The ST31P450, with 450KByte non-volatile memory (NVM) and 10KByte RAM on-chip, is in production now.

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