ST33HTPH2X32AHE4

Overview

The ST33HTPH2X32AHE4 is a long-term evolution Trusted Platform Module (TPM) 2.0 device manufactured by STMicroelectronics. It features an SPI interface operating at up to 33 MHz and utilizes an Arm SC300 core. The component complies with TCG TPM Library specifications 2.0, Level 0, Revision 159, and PC Client Specific TPM Platform Specifications 1.05 rev 14. It operates within a supply voltage range of 1.62 V to 3.6 V and supports industrial temperature grades. The device integrates flash-memory-based storage and includes fault-tolerant firmware loader capabilities for self-recovery.

Feature Summary

• Compliant with TCG TPM 2.0 standards and SP800-193 for protection and recovery.
• Features hardware security including active shield, environmental sensors, and ESD protection up to 4 kV (HBM).
• Targeted certifications include CC EAL4+ augmented with AVA_VAN.5 and ALC_FLR.1, and FIPS 140-2 Level 2.
• Supports SPI interface at speeds up to 33 MHz with extended temperature range options.

Applications

• Embedded computing applications requiring standardized security solutions.
• PC and mobile device authentication and data protection.
• IoT devices needing compliant trusted platform module services.

Procurement Notes

Verify the specific suffix 'E4' against the manufacturer's official datasheet to confirm package type and tape/reel specifications. Ensure compatibility with system voltage requirements between 1.62 V and 3.6 V. Confirm that the SPI interface speed of 33 MHz meets the host controller's timing constraints. Check for required certification compliance such as FIPS 140-2 or Common Criteria depending on the target market regulations.

Selection Notes

Select this component when a TCG-compliant TPM 2.0 solution with SPI interface is required. Consider the Arm SC300 core architecture for processing needs. Evaluate the need for FIPS 140-2 Level 2 or CC EAL4+ certification if regulatory compliance is mandatory. Compare with other STSAFE series variants if I2C interfaces or different package sizes are preferred over the VFQFPN 32 format.

Part Context

This part belongs to the STSAFE-TPM family, which provides turnkey products compliant with Trusted Computing Group standards. The family addresses security needs for embedded, PC, and mobile applications. The ST33HTPH2X32AHE4 specifically targets long-term evolution TPM implementations, offering robust firmware self-recovery and hardware-based security features integrated into a compact package.

Replacement Considerations

Consult the official STMicroelectronics cross-reference documentation for verified substitutes. Ensure any replacement maintains TCG TPM 2.0 compliance and compatible SPI interface specifications. Verify pinout and package dimensions match the existing design constraints.