ST33HTPH2X32AHD5

Application Specific Microcontrollers Overview

The ST33HTPH2X32AHD5 is a flash-memory-based Trusted Platform Module (TPM) compliant with TCG TPM Library Specifications 2.0, Level 0, Revision 138. It features an I²C interface operating at up to 400 kHz and supports up to four GPIOs mapped to NV storage indices. The device operates within a supply voltage range of 1.62 V to 3.6 V and an industrial temperature range of 0°C to 70°C. It utilizes an Arm SC300 core and includes fault-tolerant firmware loader capabilities for self-recovery.

Application Specific Microcontrollers Feature Summary

• Compliant with TCG TPM 2.0 specifications and SP800-193 standards
• I²C interface supporting speeds up to 400 kHz
• Arm SC300 core with highly reliable Flash memory technology
• ESD protection rated at 4 kV (HBM) and 750 V (CDM)

Application Specific Microcontrollers Applications

• Embedded computing applications requiring hardware root of trust
• Mobile devices needing secure authentication services
• PC platforms implementing TCG-compliant security solutions

Application Specific Microcontrollers Procurement Notes

Verify the specific suffix against official documentation, as the provided data indicates the 'AHD5' variant utilizes an I²C interface, whereas similar model numbers may differ. Confirm package availability and lead times directly with authorized distributors or the manufacturer, as stock levels fluctuate. Ensure compliance with RoHS and Ecopack2 environmental standards during procurement.

Application Specific Microcontrollers Selection Notes

Select this component when an I²C interface is required for TPM functionality in space-constrained designs. The VFQFPN 32 package (5x5x1.0 mm) suits compact form factors. Verify that the 0°C to 70°C operating temperature range meets the application's environmental requirements, noting that extended ranges (-40°C to 105°C) are available in other variants within the family.

Application Specific Microcontrollers Part Context

This part belongs to the STSAFE-TPM family from STMicroelectronics, designed for embedded, PC, and mobile applications. The family provides standardized solutions compliant with Trusted Computing Group (TCG) standards to protect confidentiality and integrity. The ST33HTPH2X32AHD5 specifically addresses needs for I²C-connected secure elements with certified security levels.

Application Specific Microcontrollers Replacement Considerations

The ST33HTPH2X32AHD4 is a functional substitute within the same family but utilizes an SPI interface instead of I²C. Designers must verify interface compatibility before substitution. Other variants like the ST33TPHF20 series offer different performance characteristics and should be evaluated based on specific core and memory requirements.