HF 13.56 MHzSTMicroelectronics

ST33TPHF2XI2C

Flash-based TPM 2.0 with NFC + I²C

Official Datasheet ↗
Frequency
13.56 MHz
Protocol
ISO/IEC 14443-A, NFC Forum Type 4
Memory
2 MB Flash, 10 KB RAM
Interface
RF (contactless NFC), I²C
Temp Range
-25°C to +85°C
Form Factor
WLCSP64, HVQFN32

Full Specifications

ManufacturerSTMicroelectronics
Frequency CategoryHF 13.56 MHz
Frequency13.56 MHz
ProtocolISO/IEC 14443-A, NFC Forum Type 4
Memory2 MB Flash, 10 KB RAM
InterfaceRF (contactless NFC), I²C
Temperature Range-25°C to +85°C
Form FactorWLCSP64, HVQFN32
SecurityTPM 2.0 compliant, Common Criteria EAL5+, AES-256, RSA-2048, ECC-256, SHA-256, HMAC, secure boot, hardware RNG

Engineering Brief

The ST33TPHF2XI2C is a flash-based Trusted Platform Module (TPM 2.0) security controller from STMicroelectronics featuring dual-interface capability with both NFC contactless (13.56 MHz ISO 14443-A) and I²C wired connectivity. It integrates 2 MB of Flash memory and comprehensive cryptographic accelerators supporting AES-256, RSA-2048, and ECC-256 with Common Criteria EAL5+ certification. The dual-interface design enables traditional TPM functions via I²C while supporting contactless NFC operations for secure provisioning, authentication, and diagnostics, making it ideal for modern secure computing platforms requiring both trusted boot capabilities and flexible NFC-based management.

Typical Applications

  • Trusted Platform Module for PC and embedded systems
  • Secure boot and firmware attestation
  • Cryptographic key storage and management
  • NFC-enabled device authentication
  • IoT device security and provisioning
  • Contactless configuration and diagnostics

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