STMicroelectronics Unveils Updated ST31 Microcontroller for Smart Cards

STMicroelectronics (ST) has released the latest version of its ST31 secure microcontroller. The ST31N600 is geared toward card applications, and was showcased in the company’s STPay-Topaz-Bio biometric payment solution at this week’s Trustech 2021 event in Paris.

The new microcontroller can be deployed in ID cards and transit ticketing platforms in addition to biometric payment cards. The ST31N600 is built with Arm’s SecurCore architecture, and leverages ST’s own 40nm eSTM technology and energy harvesting circuitry that can power several key smart card utilities without the use of a battery. Most notably, the solution can host payment applications, complete biometric matches, and generate a new dynamic verification code every single time the user tries to complete an EMV transaction.

Cards built with the ST31N600 can be used to make online and in-store purchases, and can support contactless and contact-driven payments. The platform itself is compliant with the EMV ISO 7816, 14443, and 18092 payment standards.

The STPay-Topaz-Bio payment solution, meanwhile, combines the ST31N600 with ST’s STM32L4 microcontroller and FPC’s T-Shape 2 fingerprint sensor module to create a complete Biometric System-on-Card. The solution has a prelaminated inlay, is based on the Linxens EMV module, and will help card manufacturers bring biometric cards to market more quickly.

“The ST31N600 is the starting point for great advances in smart cards, with its strong security and features that enable easy-to-use and innovative authentication mechanisms for payments,” said STMicroelectronics Secure Microcontroller Marketing Director Laurent Degauque. “Showcasing this device at Trustech 2021, we will demonstrate secure biometric payment based on STPay-Topaz-Bio and dCVV for safe online transactions.”

At Trustech, ST will also be showing off a new Ellipse EVC EMV module with a screen that can display a Dynamic CVV Security Code. ST’s FlightSense Time-of-Flight sensor has previously been used for presence detection and power conservation in laptop and PC devices.

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December 2, 2021 – by Eric Weiss

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