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By Brian Tristam Williams
STMicroelectronics has introduced the ST54M secure mobile chip, a single-die device that combines an NFC controller, embedded secure element, embedded SIM and a post-quantum cryptography hardware accelerator for next-generation phones and personal electronics.
The part is aimed at devices that already handle payments, identity credentials, access control, transit ticketing, operator services and digital car keys. STMicroelectronics says the ST54M can help handset makers prepare for quantum-ready security requirements expected later this decade, without splitting those functions across several chips.
The ST54M secure mobile chip supports post-quantum cryptography algorithms including ML-KEM and ML-DSA, the same algorithm families now covered by NIST’s first PQC standards. ST’s technical page lists a single-die NFC controller with eSE/eSIM, up to 4.5 MB of non-volatile memory, 16 KB of RAM, ISO/IEC 14443 Type A and B support, FeliCa, MIFARE and a WLCSP90 package.
The device also includes an integrated DC-DC converter with output power of up to 3 W, aimed at stronger RF behaviour, flexible antenna designs and low-power operation. ST says the RF front end can support smaller antennas and single-ended configurations, which is relevant in space-constrained phones and wearables.
NIST’s standardization work has shifted PQC from a research topic into an implementation problem. The attraction of a hardware accelerator is not just speed. In a secure element, physical attack resistance, side-channel countermeasures and certification paths are part of the product decision, particularly for payments and identity credentials.
The integration angle is not new for ST. eeNews Europe previously covered the company’s earlier NFC/eSIM secure-element chip, but the ST54M adds PQC acceleration to that mobile-convergence approach.
ST says the platform has completed certification testing under Common Criteria 2022 EUCC and EMVCo, with production and certification targeted for July 2026. Sampling is available now through local ST sales offices.
The ST54M is therefore less about adding a visible consumer feature than about moving the security baseline inside future connected devices. For OEMs, banks, mobile network operators, governments and wallet providers, the timing gives them several years to test post-quantum implementations before large-scale deployment requirements arrive around 2030.
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