ST33HTPH2E32AHC2 STMicroelectronics Integrated Circuit (Quad Flat No-Lead) In Stock
STMicroelectronics ST33HTPH2E32AHC2 is a flash-memory-based Trusted Platform Module supporting both TPM 1.2 and TPM 2.0 with an I²C interface, 1.8 V nominal supply, and 32-pad QFN package for secure hardware authentication in embedded systems.
- Manufacturer
- STMicroelectronics
- Package
- Quad Flat No-Lead
- Pin Count
- 33
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- ST33HTPH2E32AHC2 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 105.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Dual TPM 1.2 and TPM 2.0 compliance in a single device for broad platform compatibility
- I²C interface operating at 1.8 V nominal supply enabling low-power secure communication
- Flash-memory-based non-volatile storage for cryptographic keys and platform integrity data
- 32-pad QFN package (5 mm × 5 mm) supporting compact PCB integration
- Also operates at 3.3 V for flexibility across different host platform power rails
Applications
The ST33HTPH2E32AHC2 is designed for hardware-based platform security in enterprise laptops, embedded servers, and IoT gateways requiring TCG-compliant TPM functionality. It provides secure storage of cryptographic keys, platform integrity measurements, and device authentication credentials, supporting TPM 2.0 for modern OS platforms and TPM 1.2 for legacy compatibility. Its 1.8 V I²C interface and QFN-32 form factor make it suitable for mobile and space-constrained industrial embedded computing boards.
Specifications
| YTEOL | 3 |
| Additional Feature | ALSO OPERATES AT 3.3V NOMINAL VOLATGE |
| JESD-30 Code | S-XQCC-N32 |
| JESD-609 Code | e4 |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | LCC32,.2SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Supply Voltage-Nom | 1.8V |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| uPs/uCs/Peripheral ICs Type | CRYPTOGRAPHIC AUTHENTICATOR |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.30 |
| Country of Origin | Philippines |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Which TPM standards does the ST33HTPH2E32AHC2 support and at what supply voltage does it operate?
The ST33HTPH2E32AHC2 supports both TPM 1.2 and TPM 2.0 standards within the same device, operating at a nominal supply voltage of 1.8 V. It also functions at 3.3 V, giving designers flexibility to match it to different host platform power domains without additional level shifting.
What interface does the ST33HTPH2E32AHC2 use, and how does this affect integration into embedded designs?
The ST33HTPH2E32AHC2 uses an I²C interface, which requires only 2 signal wires (SDA and SCL) plus a power and ground connection from the host processor. This low pin-count interface simplifies PCB routing compared to SPI-based TPMs, making integration straightforward on designs with limited GPIO, typically needing only 4 connections for full TPM functionality.
What is the package type and pin count of the ST33HTPH2E32AHC2, and how does it fit into compact PCB layouts?
The ST33HTPH2E32AHC2 uses a 32-pad QFN (Quad Flat No-Lead) package with a 5 mm × 5 mm body and 0.5 mm pitch pads. This compact, exposed-pad package supports reflow soldering at up to 260°C and occupies approximately 25 mm² of board space, making it practical for dense security subsystem layouts in mobile or embedded designs.
In which security-critical embedded applications is the ST33HTPH2E32AHC2 a strong fit compared to software-only security solutions?
Hardware TPMs such as the ST33HTPH2E32AHC2 provide physically isolated storage for cryptographic keys and platform integrity hashes that software cannot directly access or modify, making them essential in secure boot chains, disk encryption (BitLocker or LUKS), and remote attestation for enterprise endpoints and IoT devices. The flash-memory-based architecture ensures key persistence through power cycles without external storage, providing a security advantage over purely software-based keystores.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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