ST33HTPH2E28AHD0 STMicroelectronics Integrated Circuit (Small Outline Packages) In Stock
The ST33HTPH2E28AHD0 is a Trusted Platform Module (TPM) IC supporting both TCG TPM 1.2 and TPM 2.0 standards with a SPI interface. Operating at 1.8 V nominal supply (also compatible with 3.3 V), it is housed in a 28-pin TSSOP package and provides hardware-based cryptographic functions for platform security.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- ST33HTPH2E28AHD0 Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.0800(MOQ 100)
- Temp Range
- -40.0°C to 105.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of ST33HTPH2E28AHD0?
- Dual-standard support: compliant with both TCG TPM 1.2 and TPM 2.0 specifications
- SPI host interface enabling fast, low-pin-count integration with host processors
- Dual-voltage operation: 1.8 V nominal supply with 3.3 V compatibility
- 28-pin TSSOP package for compact PCB footprint in space-constrained designs
- Hardware-based cryptographic engine for RSA, ECC, SHA, and AES operations
What is ST33HTPH2E28AHD0 used for?
The ST33HTPH2E28AHD0 is designed for enterprise laptops, desktops, and embedded computing platforms requiring hardware root-of-trust per TCG specifications. It provides secure key storage, remote attestation, and measured boot support in industrial IoT gateways and server motherboards. Its dual-standard TPM 1.2/2.0 compliance makes it suitable for both legacy systems upgrades and new UEFI Secure Boot implementations.
What are the specifications of ST33HTPH2E28AHD0?
| Date Of Intro | 2019-11-12 |
| YTEOL | 3 |
| Additional Feature | ALSO OPERATES AT 3.3V NOMINAL VOLATGE |
| JESD-30 Code | R-PDSO-G28 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP28,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Supply Voltage-Nom | 1.8V |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| uPs/uCs/Peripheral ICs Type | CRYPTOGRAPHIC AUTHENTICATOR |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.31.00.30 |
| Country of Origin | Philippines |
Where can I find the ST33HTPH2E28AHD0 datasheet?
ST33HTPH2E28AHD0 Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for ST33HTPH2E28AHD0?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What cryptographic algorithms does the ST33HTPH2E28AHD0 support for key generation and signing?
The ST33HTPH2E28AHD0 supports RSA up to 2048-bit keys, ECC with P-256 curves, SHA-1 and SHA-256 hashing, and AES-128/256 symmetric encryption. These hardware-accelerated engines provide strong security at 1.8 V supply without burdening the host CPU.
How does the ST33HTPH2E28AHD0's SPI interface simplify integration into an existing embedded design?
The SPI interface operates at up to 43 MHz, allowing the 28-pin TSSOP device to connect directly to a host microcontroller or SoC with just 4 signal lines. This reduces BOM complexity and PCB routing compared to LPC-based TPM solutions while maintaining full TCG TPM 2.0 command compliance.
When should a designer choose the ST33HTPH2E28AHD0 over a discrete firmware TPM implementation?
A hardware TPM like the ST33HTPH2E28AHD0 stores cryptographic keys in a physically isolated 28-pin chip, preventing software-based attacks that can compromise firmware TPM running in shared CPU memory. The device operates from a 1.8 V rail and is certified to Common Criteria EAL4+, providing assurance levels not achievable with firmware-only solutions.
Which operating temperature range is supported, and does that cover industrial use cases?
The ST33HTPH2E28AHD0 is rated for an operating temperature range of -40°C to +85°C, covering both commercial and industrial environments. This makes it suitable for ruggedized embedded systems, industrial IoT gateways, and outdoor networking equipment requiring reliable TPM functionality across wide thermal conditions.
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Why Buy from FindMyChip
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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 100+ | $3.8600 | $386.00 |
| 250+ | $3.6700 | $917.50 |
| 500+ | $3.2900 | $1645.00 |
| 2500+ | $3.0800 | $7700.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.”
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