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Infineon Technologies SLB9635TT12FW319XUMA1
- Part No.:
- SLB9635TT12FW319XUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Microcontrollers
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
SLB9635TT12FW319XUMA1.pdf
- Description:
- SECURITY IC'S/AUTHENTICATION IC'
- Quantity:
- Payment:
- Shipping:
Inventory:1,126
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Product details
Overview
SLB9635TT12FW319XUMA1 from Infineon is a TCG 1.2-compliant Trusted Platform Module (TPM) security IC implementing hardware-based RSA-2048, SHA-1 acceleration, and a true random number generator (TRNG), deployed as a dedicated security co-processor on the LPC bus in desktop and notebook motherboards for Windows Vista–compatible trusted boot and key management.
For engineers reviewing the SLB9635TT12FW319XUMA1 datasheet, SLB9635TT12FW319XUMA1 pinout, SLB9635TT12FW319XUMA1 application, or SLB9635TT12FW319XUMA1 equivalent, this module delivers certified EAL4+ tamper-resistant key storage, BIOS-integrated attestation, and WHQL-certified Windows Kernel Mode Driver support for production-grade platform integrity verification.
Technical Context
The SLB9635TT12FW319XUMA1 implements the TCG TPM 1.2 specification using Infineon's SLE66CXxxPE 16-bit security controller architecture with embedded EEPROM for firmware updates and persistent key storage. It integrates a hardware Advanced Crypto Engine (ACE) supporting RSA-2048 signing/decryption and SHA-1 hashing at wire-speed, plus a TRNG compliant with FIPS 140-2 requirements.
It connects via Low Pin Count (LPC) interface operating at 33 MHz, supports CLKRUN and power-down signals for dynamic clock gating and sleep mode, and includes voltage/frequency/tamper sensors with memory encryption (MED) and dictionary attack protection - all validated under TÜViT EAL4+ certification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| TCG Specification | Compliant with TPM 1.2 standard, enabling Windows Vista–required trusted boot and attestation workflows. |
| RSA Key Length | Hardware-accelerated RSA up to 2048-bit keys for secure key generation, signing, and decryption without CPU offload. |
| Hash Algorithm | Dedicated SHA-1 hardware accelerator for platform measurement logging and integrity verification at boot time. |
| Random Number Generation | True Random Number Generator (TRNG) meeting TCG 1.2 entropy requirements for cryptographic key derivation. |
| Interface | LPC bus interface (33 MHz) with CLKRUN and SUS# signaling for seamless integration into Intel/AMD south bridge designs. |
| Operating Voltage | Single 3.3 V supply enables direct connection to motherboard power rails without level-shifting circuitry. |
| Temperature Range | 0°C to +70°C industrial grade operation ensures reliability across desktop and mobile platform thermal profiles. |
Pinout & Package
SLB9635TT12FW319XUMA1 is housed in a green, lead-free Small Low-profile TSSOP-28 package (body size 9.7 mm × 4.4 mm, 0.65 mm pitch), optimized for surface-mount assembly on space-constrained motherboard layouts near the south bridge.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| LCLK | LPC Clock Input | 33 MHz synchronous clock input for LPC interface timing; requires clean, low-jitter source from south bridge. |
| LFRAME# | LPC Frame Signal | Active-low signal indicating start of LPC transaction; used for cycle arbitration and bus ownership. |
| LAD[3:0] | LPC Address/Data Bus | Time-multiplexed 4-bit bidirectional bus carrying address, data, and control during LPC cycles. |
| LRESET# | Global Reset Input | Asynchronous active-low reset that clears internal state and forces reinitialization of crypto engine and EEPROM. |
| SUS# | Suspend Control | Active-low signal triggering low-power standby mode; halts internal clocks while retaining key state. |
| CLKRUN# | Dynamic Clock Control | Enables/disables internal 33 MHz clock on demand to reduce dynamic power during idle LPC periods. |
| VCC / GND | Power & Ground | Single 3.3 V supply with dedicated analog/digital ground pins; decoupling required per Infineon layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| EAL4+ Certification | Validated by TÜViT against Common Criteria for resistance to physical, side-channel, and fault injection attacks. |
| Endorsement Key (EK) | Factory-programmed, non-exportable RSA-2048 EK with certificate pre-loaded for immediate platform identity binding. |
| Memory Encryption (MED) | Hardware-encrypted EEPROM storage prevents extraction of stored keys or credentials even with physical access. |
| WHQL Driver Support | Fully certified Windows Kernel Mode Driver enabling plug-and-play integration with Windows Vista and later OS versions. |
| GPIO Support | Dedicated general-purpose I/O pin compatible with Intel TXT and AMD SVM architectures for external attestation triggers. |
Applications
| Secure Boot Integrity | Enterprise Credential Vault |
|---|---|
Use Scenario: Verifying BIOS, bootloader, and OS loader integrity before execution during cold boot and resume-from-suspend. IC Role / Device Role / Timing Role: TPM acts as root-of-trust for measurement and signature verification; performs SHA-1 hashing and RSA-2048 signature validation in real time. Use Value: Prevents unauthorized firmware modifications and bootkit injection by enforcing cryptographically signed chain-of-trust. | Use Scenario: Storing domain credentials, BitLocker encryption keys, and digital certificates for enterprise-managed laptops. IC Role / Device Role / Timing Role: Secure non-volatile storage with hardware-enforced access control; keys never exposed to host RAM or software stack. Use Value: Enables hardware-backed full-disk encryption and single sign-on without exposing keys to malware or memory dumps. |
| Remote Attestation | Trusted Execution Environment |
Use Scenario: Proving platform configuration to remote servers (e.g., cloud access gateways or corporate VPN endpoints). IC Role / Device Role / Timing Role: Generates signed PCR quotes containing measured system state; uses EK and AIK for identity binding and revocation. Use Value: Allows policy-based network admission control based on verified hardware/software configuration, not just network location. | Use Scenario: Supporting Intel TXT or AMD SVM secure launch sequences for isolated hypervisor or trusted application environments. IC Role / Device Role / Timing Role: Provides sealed storage and attestation services for measured launch modules (MLM) and SINIT ACMs. Use Value: Enables runtime isolation of sensitive workloads (e.g., DRM, financial apps) with hardware-enforced memory encryption and integrity checks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TPM 1.2 security applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ST33HTPH20AA | STMicroelectronics TPM 1.2 with ARM SecurCore SC300 core; supports same LPC interface but lacks WHQL driver bundle. | Requires third-party driver integration; validated for Linux and Windows but no Microsoft-signed kernel driver included. | Select when open-source stack compatibility or dual-vendor sourcing is prioritized over out-of-box Windows Vista/7 support. |
| AT97SC3204-TI | Atmel (now Microchip) TPM 1.2 with 8-bit AVR core; supports LPC but limited to RSA-1024 and no native SHA-1 accelerator. | Lower cryptographic throughput; unsuitable for high-frequency attestation or large-scale key provisioning workflows. | Select only for cost-sensitive legacy platforms where 2048-bit RSA and SHA-1 acceleration are not required. |
Compared with ST33HTPH20AA and AT97SC3204-TI, the SLB9635TT12FW319XUMA1 provides factory-certified WHQL drivers, hardware-accelerated RSA-2048/SHA-1, and EAL4+ tamper resistance - making it the only option qualified for OEM deployment in Windows Vista–certified systems requiring zero-touch security enablement.
Availability
SLB9635TT12FW319XUMA1 is available at Aetrix Electronics and suitable for desktop motherboard design, notebook platform security enablement, and enterprise endpoint management systems requiring stable component supply and long-term lifecycle assurance.
Supply support for SLB9635TT12FW319XUMA1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies AG is a German semiconductor manufacturer specializing in security, power management, automotive, and sensor solutions, with global R&D centers and ISO/IEC 27001-certified security development processes.
This device belongs to Infineon's SECURITY EMBEDDED TPM product line, designed specifically to deliver TCG-compliant, certifiable hardware roots of trust for PC, server, and industrial computing platforms requiring verifiable integrity and confidential data protection.
FAQ
What is the difference between SLB9635TT12FW319XUMA1 and earlier SLB9635 variants?
The SLB9635TT12FW319XUMA1 is a TCG 1.2-compliant revision featuring updated firmware, EAL4+ certification by TÜViT, WHQL-signed Windows drivers, and full support for Microsoft Vista's trusted boot requirements - unlike earlier 1.1b-only versions which lack SHA-1 acceleration and dictionary attack protection.
Does this TPM support TPM 2.0 or only TPM 1.2?
This part implements only the TCG TPM 1.2 specification. It does not support TPM 2.0 algorithms, command sets, or authorization logic. Migration to TPM 2.0 requires hardware replacement with Infineon's SLB9670 or equivalent, as 1.2 and 2.0 are not backward-compatible at the protocol or cryptographic level.
Is the Endorsement Key (EK) pre-provisioned and certified?
Yes - each SLB9635TT12FW319XUMA1 ships with a unique, factory-generated RSA-2048 Endorsement Key permanently fused into secure memory, accompanied by an X.509 certificate signed by Infineon's Certificate Authority, enabling immediate platform identity binding without on-site provisioning.
Can this TPM be used in industrial or extended temperature applications?
No - the SLB9635TT12FW319XUMA1 is rated for 0°C to +70°C operation only and is qualified for commercial desktop/notebook use. Industrial (-40°C to +85°C) applications require Infineon's SLB9665 or other extended-temperature TPM variants explicitly specified for those ranges.
SLB9635TT12FW319XUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 28-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Applications:
- Trusted Platform Module (TPM)
- Core Processor:
- 16-Bit
- Program Memory Type:
- -
- Controller Series:
- -
- RAM Size:
- -
- Interface:
- LPC
- Number of I/O:
- 2
- Voltage - Supply:
- 3.3V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 28-TSSOP
SLB9635TT12FW319XUMA1 FAQ
1.How can I place an order for SLB9635TT12FW319XUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SLB9635TT12FW319XUMA1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SLB9635TT12FW319XUMA1 reliable?
The price and inventory of SLB9635TT12FW319XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SLB9635TT12FW319XUMA1 is usually 5 days.
3.What payment methods are accepted for SLB9635TT12FW319XUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SLB9635TT12FW319XUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SLB9635TT12FW319XUMA1?
SLB9635TT12FW319XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SLB9635TT12FW319XUMA1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SLB9635TT12FW319XUMA1?
For technical support, including SLB9635TT12FW319XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SLB9635TT12FW319XUMA1 requirements.
6.How does Aetrix verify that SLB9635TT12FW319XUMA1 is sourced from the original manufacturer or authorized distributors?
All SLB9635TT12FW319XUMA1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SLB9635TT12FW319XUMA1 meets industry standards.
7.What is the process for return or replacement of SLB9635TT12FW319XUMA1?
All SLB9635TT12FW319XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with SLB9635TT12FW319XUMA1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SLB9635TT12FW319XUMA1 part is unused and in its original packaging.
Return procedure for SLB9635TT12FW319XUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SLB9635TT12FW319XUMA1 Tags
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CYPD3175-24LQXQ
Infineon Technologies
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AT97SC3204-U2A1A-20
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AT97SC3204-U2A1A-10
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SLM9670AQ20FW1311XTMA1
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SLB9672XU20FW1613XTMA1
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