SLB9635TT12XUMA3

Overview

The SLB9635TT12XUMA3 is a Trusted Computing Group (TCG) 1.2 compliant embedded Trusted Platform Module (TPM) designed for notebook and desktop architectures. It utilizes Infineon’s 16-bit security controller architecture implemented in 0.22 µm CMOS technology. The device features an Advanced Crypto Engine supporting RSA keys up to 2048 bits, a hardware accelerator for SHA-1, and an embedded True Random Number Generator (TRNG). It operates on a single 3.3 V power supply within an operating temperature range of 0°C to +70°C.

Feature Summary

• TCG 1.2 Compliant: Fully adheres to the Trusted Computing Group specification version 1.2.
• Cryptographic Capabilities: Includes an Advanced Crypto Engine with RSA support up to 2048-bit key length and a hardware-accelerated SHA-1 hash algorithm.
• Security Architecture: Based on the SLE66CXxxPE family, featuring over/under voltage detection, memory encryption (MED), and protection against dictionary attacks.
• Interface & Power: Connects via Low Pin Count (LPC) interface using a 33 MHz clock; supports power-down signals for low-power standby mode.

Applications

• Notebook and Desktop PC Security
• Microsoft Windows Vista Integration
• Intel Trusted Execution Technology Support
• AMD Secure Virtual Machine Architecture

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the specific revision matches TCG 1.2 requirements. Check for end-of-life status as older TPM generations may be discontinued. Ensure compatibility with existing BIOS drivers and TSS software stacks before procurement.

Selection Notes

Select this component for systems requiring TCG 1.2 compliance and LPC interface integration. Ensure the design accommodates the 28-pin TSSOP package dimensions. Verify that the host system provides the required 3.3 V power rail and 33 MHz LPC clock signal. Consider GPIO availability if utilizing Intel TXT or AMD SVM features.

Part Context

This part belongs to Infineon's SLB 9635 series of security controllers. It is specifically engineered to provide platform-based security for computing environments. The device integrates non-volatile EEPROM for firmware enhancements and user data storage, distinguishing it from general-purpose microcontrollers by its specialized cryptographic and tamper-resistant hardware features.

Replacement Considerations

Direct pin-to-pin replacements are not explicitly documented in public sources. Systems requiring newer standards should consider TPM 2.0 equivalents. Existing designs relying on WHQL dual-mode drivers must ensure software stack compatibility with any alternative secure elements.