ST33TPM12LPCR28 STMicroelectronics Integrated Circuit (Small Outline Packages) In Stock
STMicroelectronics ST33TPM12LPCR28 is a Trusted Platform Module (TPM 1.2) with LPC interface built on a 32-bit ARM SecurCore SC300 CPU, housed in a TSSOP-28 package for hardware-based security in PCs and embedded systems.
- Manufacturer
- STMicroelectronics
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- ST33TPM12LPCR28 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- TPM 1.2 compliant hardware security module with 32-bit ARM SecurCore SC300 CPU for trusted boot and platform attestation
- LPC (Low Pin Count) interface enables direct connection to PC chipsets and embedded platforms without additional bridge logic
- TSSOP-28 package measuring 9.7 mm x 4.4 mm provides compact footprint for security-critical PCB designs
- Hardware-based cryptographic engine supports RSA 2048-bit key generation and SHA-1 hashing for platform integrity measurement
Applications
ST33TPM12LPCR28 is used in enterprise laptops, desktop motherboards, and industrial embedded computers requiring hardware root-of-trust security. It supports TPM 1.2 functions including measured boot, remote attestation, and cryptographic key storage, making it a standard component for BIOS integrity verification and disk encryption in TCG-compliant platforms.
Specifications
| Manufacturer Package Code | TSSOP28 9.7 x 4.4 |
| YTEOL | 3 |
| uPs/uCs/Peripheral ICs Type | MICROPROCESSOR, RISC |
| 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 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Which TPM specification does ST33TPM12LPCR28 implement and what CPU powers it?
ST33TPM12LPCR28 implements the TPM 1.2 specification as defined by the Trusted Computing Group (TCG). It is powered by a 32-bit ARM SecurCore SC300 CPU, which provides a dedicated secure processing environment for cryptographic operations, platform integrity measurements, and key storage independent of the host system's main processor.
How does the LPC interface on ST33TPM12LPCR28 connect to a host motherboard?
The LPC (Low Pin Count) interface connects ST33TPM12LPCR28 directly to the LPC bus on the host motherboard chipset using just 4 data lines plus clock and control signals. This minimizes PCB routing complexity and is the standard interface for TPM chips on x86 motherboards, requiring no dedicated bridge IC between the 28-pin TSSOP TPM and the southbridge.
What cryptographic algorithms does ST33TPM12LPCR28 support for platform security?
ST33TPM12LPCR28 supports RSA 2048-bit key generation and digital signatures plus SHA-1 hashing as mandated by the TPM 1.2 specification. The hardware-based cryptographic engine handles these operations within the secure SC300 core, ensuring private keys never leave the TSSOP-28 chip, which is essential for secure boot, BitLocker disk encryption, and platform attestation workflows.
In what form factor and dimensions does ST33TPM12LPCR28 ship for PCB integration?
ST33TPM12LPCR28 is available in a TSSOP-28 package with body dimensions of 9.7 mm x 4.4 mm. The 28-pin small outline package with standard 0.65 mm pitch leads is compatible with automated SMT assembly. This compact form factor allows the TPM 1.2 chip to fit within the small reserved area on standard ATX and mini-ITX motherboard layouts.
Related Guides
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
ADAQ7768-1 Design Guide for Precision Vibration and Dynamic Signal Measurement
Design ADAQ7768-1 precision data acquisition channels for vibration and dynamic sensing with the right bandwidth, reference, clock, and layout choices.
Jun 30, 2026
AD5204BRZ10 Design Guide for SPI-Controlled Gain and Offset Calibration
Design AD5204BRZ10 digital potentiometer calibration loops with bounded trim span, safe wiper current, clean SPI routing, and reliable startup codes.
Jun 30, 2026
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.
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.”