Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Embedded > Application Specific Microcontrollers

Infineon Technologies SLB9635TT12FW317XUMA1

Name: SLB9635TT12FW317XUMA1
Brand: Infineon Technologies
SKU: SLB9635TT12FW317XUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: SLB9635TT12FW317XUMA1

Manufacturer:: Infineon Technologies

Category:: Application Specific Microcontrollers

Package:: 28-TSSOP (0.173", 4.40mm Width)

Datasheet:: SLB9635TT12FW317XUMA1.pdf

Description:: IC SECURITY TPM I2C 28TSSOP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,805

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

SLB9635TT12FW317XUMA1 from Infineon is a TCG 1.2-compliant Trusted Platform Module (TPM) security IC implementing hardware-rooted trust for PC platforms. It integrates a 16-bit SLE66CXxxPE security controller, 2048-bit RSA acceleration, SHA-1 hardware hash engine, true random number generator (TRNG), and EEPROM for key storage - deployed in desktop/notebook motherboards via LPC interface for Windows Vista–compatible secure boot and identity management.

For engineers reviewing the SLB9635TT12FW317XUMA1 datasheet, SLB9635TT12FW317XUMA1 pinout, SLB9635TT12FW317XUMA1 application, or SLB9635TT12FW317XUMA1 equivalent, this page delivers verified technical context, LPC interface timing, EAL 4+ certification status, GPIO configuration, and WHQL-certified driver support - all critical for BIOS integration, secure boot validation, and TPM-enabled enterprise endpoint security deployment.

Technical Context

The SLB9635TT12FW317XUMA1 implements TCG 1.2 specification on a dedicated 0.22 µm CMOS security controller with embedded secure OS, supporting LPC bus protocol at 33 MHz with CLKRUN and power-down signaling. It provides tamper-resistant key generation, storage, and cryptographic operations including RSA-2048 signing/decryption and SHA-1 hashing.

Its architecture includes over/under-voltage detection, low/high-frequency sensors, reset filtering, and memory encryption (MED) to meet physical attack resistance requirements. The module supports Intel TXT and AMD SVM extensions and ships pre-personalized with Endorsement Key (EK) and EK certificate for immediate platform attestation.

Key Specifications

Parameter	Value and Actual Design Meaning
TCG Compliance	TCG 1.2 specification compliant - enables Windows Vista Secure Boot, BitLocker, and remote attestation workflows
Crypto Engine	RSA-2048 hardware accelerator + SHA-1 hash engine - offloads asymmetric crypto from CPU, enabling fast key exchange and signature verification
Random Number Gen	True Random Number Generator (TRNG) certified per TCG spec - required for cryptographically secure key derivation and nonce generation
Interface	LPC (Low Pin Count) bus, 33 MHz clock - direct motherboard integration without PCIe or SPI bridge; compatible with Intel/AMD southbridge LPC controllers
Power Supply	3.3 V ±10% single supply - matches standard LPC I/O voltage domain; supports sleep mode for platform power state coordination
Operating Temp	0°C to +70°C - validated for commercial desktop/notebook chassis thermal environments, not extended industrial range
Security Certification	EAL 4+ (Medium) certified by TÜViT - confirms resistance to side-channel and fault injection attacks per Common Criteria requirements

Pinout & Package

SLB9635TT12FW317XUMA1 is housed in a green, lead-free TSSOP-28 package (4.4 mm × 9.7 mm, 0.65 mm pitch), optimized for surface-mount placement on motherboard LPC bus traces.

Pin/Terminal	Circuit Role	Design Meaning
LCLK	LPC Clock Input	33 MHz system clock input; synchronizes all LPC transactions and internal crypto timing
LRESET#	Active-Low Reset	Asynchronous reset signal from southbridge; initiates secure cold boot and clears volatile state
LFRAME#	LPC Frame Strobe	Indicates start of LPC cycle; used for address/data phase synchronization during firmware read/write
LAD[3:0]	LPC Address/Data Bus	Time-multiplexed 4-bit bidirectional bus carrying addresses, commands, and data per TCG 1.2 LPC protocol
GPIO_0–GPIO_3	General Purpose I/O	Configurable as interrupt outputs or status inputs; Microsoft-recommended for platform-specific security event signaling
VCC / GND	Power & Ground	Dedicated 3.3 V supply and ground pins with decoupling pad recommendations per Infineon layout guidelines

Key Features

Feature	Design Value
Pre-personalized EK	Endorsement Key and X.509 EK certificate pre-provisioned - eliminates OEM key-generation infrastructure and accelerates BIOS integration
WHQL Dual-Mode Driver	Windows Hardware Quality Labs-certified kernel-mode driver supporting both TPM 1.1b and 1.2 modes - ensures plug-and-play compatibility across Windows XP/Vista/Server 2003
Tamper Detection	Integrated voltage/frequency sensors and reset filter - triggers secure erase on detected physical intrusion or clock glitching attempts
Memory Encryption (MED)	Hardware encryption of EEPROM contents using internal keys - prevents offline extraction of stored keys or credentials
Intel TXT / AMD SVM Support	Firmware-level hooks for measured launch and secure virtual machine root-of-trust - enables hypervisor-based attestation and isolated execution environments

Applications

Secure Boot Validation

Enterprise Identity Management

Use Scenario: Verifying integrity of BIOS, bootloader, and OS kernel before execution during cold boot sequence.

IC Role / Device Role / Timing Role: Root-of-trust anchor providing cryptographic measurement and signature verification via PCR extension and EK-signed quotes.

Use Value: Prevents unauthorized firmware modification and bootkit persistence by enforcing chain-of-trust from hardware up through OS load.

Use Scenario: Enabling Single Sign-On (SSO) and digital credential storage for corporate laptops accessing AD/LDAP resources.

IC Role / Device Role / Timing Role: Secure key vault and cryptographic service provider (CSP) for PKCS#11 and MS-CAPI interfaces.

Use Value: Eliminates password reuse risk and enables hardware-bound certificate authentication without exposing private keys to OS memory.

Disk Encryption Key Protection

Remote Attestation & Compliance Reporting

Use Scenario: Securing BitLocker Full Disk Encryption (FDE) keys on Windows Vista/7 endpoints.

IC Role / Device Role / Timing Role: TPM-resident key protector binding decryption keys to platform state (PCR values) and user PIN.

Use Value: Ensures encrypted drives remain inaccessible if removed from authorized hardware or if boot path is altered.

Use Scenario: Reporting platform configuration (e.g., BIOS version, patch level, running services) to IT security gateways or cloud compliance dashboards.

IC Role / Device Role / Timing Role: Trusted reporting agent generating signed, time-stamped attestations using TPM-stored AIKs.

Use Value: Enables automated policy enforcement and audit-ready evidence of endpoint health without relying on software-only agents.

Equivalent & Alternatives

The following parts are listed as comparable options for similar TPM security applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ST33HTPH2E32A	TCG 2.0 compliant; ARM-based secure core; supports ECC and SHA-256; no RSA-2048 hardware acceleration	Required for Windows 10/11 modern device attestation; lacks native WHQL 1.2 driver support	Select when upgrading to TCG 2.0 mandates or requiring elliptic-curve cryptography for IoT edge devices
SLB9670VQ20FW317XUMA1	Infineon's successor TPM 2.0 part; same TSSOP-28 footprint; adds AES-128, HMAC-SHA256, and PCR bank expansion	Backward-compatible LPC interface but requires updated BIOS and OS drivers; not WHQL-certified for legacy Windows versions	Select for new designs targeting long-term lifecycle support beyond 2025 and full TCG 2.0 feature set

Compared with ST33HTPH2E32A and SLB9670VQ20FW317XUMA1, the SLB9635TT12FW317XUMA1 offers proven Windows Vista–to–Windows 7 compatibility, pre-certified WHQL drivers, and mature BIOS reference implementations - making it optimal for cost-sensitive commercial desktop platforms where TCG 1.2 suffices and upgrade path is not yet mandated.

Availability

SLB9635TT12FW317XUMA1 is available at Aetrix Electronics and suitable for notebook motherboard manufacturing, commercial desktop OEM builds, and enterprise endpoint security deployments requiring stable component supply, long-lifecycle availability, and TCG 1.2 certification traceability.

Supply support for SLB9635TT12FW317XUMA1 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 power management, automotive MCUs, and hardware security solutions, with global R&D centers and ISO/IEC 27001-certified security development processes.

This part belongs to Infineon's SECURITY EMBEDDED TPM product line, designed specifically to deliver certified, drop-in hardware roots of trust for PC platforms - enabling OEMs to meet Microsoft Windows security requirements and enterprise manageability standards out of the box.

FAQ

Does SLB9635TT12FW317XUMA1 support TPM 2.0?

No. SLB9635TT12FW317XUMA1 is strictly TCG 1.2 compliant and does not implement TPM 2.0 features such as algorithm agility, hierarchical key trees, or SHA-256. It lacks firmware upgradability to 2.0 and is not recognized by Windows 11's TPM 2.0 requirement. For 2.0 support, Infineon recommends SLB9670VQ20FW317XUMA1.

What BIOS integration support is provided?

Infineon supplies a complete TPM Professional Package including reference BIOS code for AMI, Phoenix, and Insyde firmware, LPC initialization sequences, PCR extension logic, and TCG 1.2 command handler templates. All are validated on Intel 945/ICH7 and AMD SB600 platforms per the official Product Brief.

Is the Endorsement Key (EK) unique per unit?

Yes. Each SLB9635TT12FW317XUMA1 is factory-programmed with a unique 2048-bit RSA Endorsement Key and an X.509 certificate signed by Infineon's Certificate Authority. The EK cannot be extracted or modified post-manufacture and serves as the immutable hardware identity for platform attestation.

Can it operate outside the 0°C to +70°C range?

No. The device is characterized and qualified only for 0°C to +70°C ambient operation. Extended temperature variants (e.g., –40°C to +85°C) are not offered for this part number. Operation outside this range may cause EEPROM retention failure, TRNG bias, or LPC timing violation per Infineon's published reliability report PS11061.nb.

SLB9635TT12FW317XUMA1 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:: PG-TSSOP-28

SLB9635TT12FW317XUMA1 FAQ

1.How can I place an order for SLB9635TT12FW317XUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for SLB9635TT12FW317XUMA1 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 SLB9635TT12FW317XUMA1 reliable?

The price and inventory of SLB9635TT12FW317XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SLB9635TT12FW317XUMA1 is usually 5 days.

3.What payment methods are accepted for SLB9635TT12FW317XUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SLB9635TT12FW317XUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SLB9635TT12FW317XUMA1?

SLB9635TT12FW317XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SLB9635TT12FW317XUMA1 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 SLB9635TT12FW317XUMA1?

For technical support, including SLB9635TT12FW317XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SLB9635TT12FW317XUMA1 requirements.

6.How does Aetrix verify that SLB9635TT12FW317XUMA1 is sourced from the original manufacturer or authorized distributors?

All SLB9635TT12FW317XUMA1 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 SLB9635TT12FW317XUMA1 meets industry standards.

7.What is the process for return or replacement of SLB9635TT12FW317XUMA1?

All SLB9635TT12FW317XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with SLB9635TT12FW317XUMA1, 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 SLB9635TT12FW317XUMA1 part is unused and in its original packaging.

Return procedure for SLB9635TT12FW317XUMA1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…

2026-07-19 Blend Door Actuator: Symptoms, Location, Reset and Replacement Guide

A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…

2026-07-17 Raspberry Pi Alternatives: Chip-Level Comparison, Compatibility and Replacement Guide

Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…

2026-07-13 How to Test Dynamic Load Response in Low-Voltage High-Current Buck Converters

Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…

2026-07-08 Output Capacitor Selection for High-Current ASIC Vcore Rails

Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…

2026-07-07 High-Current ASIC Core Power Supply Design: 12-Phase Buck, PMBus and Dynamic Load Response

Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …

2026-07-06 Voltage Regulator: Types, Circuits, Testing and Selection Guide

Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.

2026-06-30 Amplifiers Explained: Types, Circuits, Gain, Classes and Applications

Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…