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 SLB9635TT12FW317NOXUMA1

Name: SLB9635TT12FW317NOXUMA1
Brand: Infineon Technologies
SKU: SLB9635TT12FW317NOXUMA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: SLB9635TT12FW317NOXUMA1

Manufacturer:: Infineon Technologies

Category:: Application Specific Microcontrollers

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

Datasheet:: SLB9635TT12FW317NOXUMA1.pdf

Description:: SECURITY IC'S/AUTHENTICATION IC'

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:4,590

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

Product details

Overview

SLB9635TT12FW317NOXUMA1 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 discrete LPC-interface security co-processor on desktop/notebook motherboards for Windows Vista–era platform integrity verification.

For engineers reviewing the SLB9635TT12FW317NOXUMA1 datasheet, SLB9635TT12FW317NOXUMA1 pinout, SLB9635TT12FW317NOXUMA1 application, or SLB9635TT12FW317NOXUMA1 equivalent, key selection considerations include LPC bus timing compliance, EAL4+ certification status, embedded Endorsement Key personalization, WHQL dual-mode driver support (1.1b/1.2), and tamper-detection features including voltage/frequency sensors and memory encryption.

Technical Context

This TPM implements the TCG 1.2 specification using Infineon's SLE66CXxxPE 16-bit security controller architecture in 0.22 µm CMOS, with dedicated hardware accelerators for RSA-2048 signing/verification and SHA-1 hashing, plus a certified TRNG meeting FIPS 140-2 requirements.

It interfaces exclusively via Low Pin Count (LPC) bus at 33 MHz, supports CLKRUN-driven dynamic clock shutdown and power-down mode, integrates GPIO for platform-level attestation triggers, and includes EEPROM for firmware updates and user key storage - all operating within 0°C to +70°C ambient range on 3.3 V supply.

Key Specifications

Parameter	Value and Actual Design Meaning
TCG Compliance	Version 1.2 - enables Windows Vista BitLocker, secure boot chain validation, and remote attestation per TCG spec.
RSA Engine	2048-bit key support - provides cryptographic strength sufficient for long-term key binding and digital signature generation.
Hash Acceleration	Hardware SHA-1 - offloads hash computation from CPU during PCR extension and quote operations.
Random Generation	True Random Number Generator (TRNG) - certified entropy source required for key generation and nonce creation.
LPC Interface	33 MHz synchronous bus - ensures compatibility with Intel/AMD southbridge LPC controllers without protocol translation.
Operating Voltage	3.3 V ±10% - matches standard motherboard I/O rail, eliminating need for level-shifting circuitry.
Temperature Range	0°C to +70°C - validated for commercial desktop/notebook chassis thermal environments.

Pinout & Package

SLB9635TT12FW317NOXUMA1 is housed in a green, lead-free TSSOP-28 package (5.0 × 11.5 mm, 0.65 mm pitch), optimized for surface-mount assembly on high-density motherboard PCBs.

Pin/Terminal	Circuit Role	Design Meaning
LCLK	LPC Clock Input	33 MHz master clock input synchronized to southbridge LPC controller timing.
LRESET#	Active-Low Reset	Asynchronous reset signal asserting internal state machine and clearing volatile registers.
LFRAME#	LPC Frame Strobe	Indicates start of LPC transaction cycle; used for address/data phase synchronization.
LDATA[3:0]	LPC Data Bus	4-bit bidirectional multiplexed data path for configuration, command, and response transfer.
GPIO_0	General Purpose I/O	Configurable as platform attestation trigger or OEM-defined security event indicator.
VDD / VSS	Power / Ground	Dual 3.3 V supply pins with dedicated ground returns ensure stable core and I/O domain operation.

Key Features

Feature	Design Value
Embedded Endorsement Key (EK)	Factory-programmed unique RSA-2048 key pair enabling hardware-rooted identity binding and certificate issuance.
Tamper Detection Circuitry	Integrated over/under-voltage detection, low/high-frequency sensors, and reset filtering prevent physical fault injection attacks.
Memory Encryption (MED)	Hardware-encrypted EEPROM storage prevents extraction of keys and sensitive firmware parameters via side-channel probing.
WHQL-Certified Driver	Dual-mode (1.1b/1.2) Windows Kernel Mode Driver with Microsoft-signed binaries for plug-and-play OS integration.
Dictionary Attack Protection	Lockout counter and escalating delay mechanism enforce policy limits on failed authorization attempts.

Applications

Secure Boot Validation

BitLocker Drive Encryption

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

IC Role / Device Role / Timing Role: TPM acts as root-of-trust for measurement and attestation; stores PCRs updated synchronously with boot stages.

Use Value: Prevents unauthorized firmware or kernel modifications by cryptographically binding measurements to hardware identity.

Use Scenario: Protecting full-disk encryption keys used by Windows BitLocker on enterprise laptops.

IC Role / Device Role / Timing Role: Securely stores and releases volume encryption keys only after successful platform state validation.

Use Value: Ensures encrypted data remains inaccessible if device is stolen or booted with malicious firmware.

Remote Attestation

Single Sign-On (SSO)

Use Scenario: Proving platform health and software configuration to cloud services or corporate gateways prior to network access.

IC Role / Device Role / Timing Role: Generates signed quotes containing PCR values and platform identity for third-party verification.

Use Value: Enables zero-trust network admission control without exposing raw system state to untrusted endpoints.

Use Scenario: Enabling passwordless authentication across Microsoft Office, Outlook, and IE using stored credentials and asymmetric keys.

IC Role / Device Role / Timing Role: Hosts private keys and performs cryptographic signing for Kerberos ticket requests and PKCS#11 operations.

Use Value: Eliminates credential replay risks while maintaining compatibility with legacy Windows CAPI applications.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ST33HTPH2E32A	TCG 2.0 compliant; uses ARM SecurCore SC300 core; supports SHA-256 and ECC; no RSA-2048 acceleration.	Required for Windows 10/11 systems mandating TPM 2.0; incompatible with legacy TCG 1.2 BIOS implementations.	Select when upgrading to post-Vista platforms requiring SHA-256 attestation and elliptic-curve cryptography.
SLB9665TT20FW317NOXUMA1	Successor TPM 2.0 variant; same TSSOP-28 package; adds AES engine and extended PCR banks; backward-compatible pinout.	Supports both legacy and modern OS stacks via firmware-switchable modes; requires updated BIOS but retains mechanical fit.	Choose for new designs needing forward compatibility while minimizing PCB redesign effort.

Compared with ST33HTPH2E32A and SLB9665TT20FW317NOXUMA1, SLB9635TT12FW317NOXUMA1 delivers proven TCG 1.2 interoperability with Windows Vista–Windows 7 platforms, lower firmware complexity, and direct BIOS integration paths - making it optimal for cost-sensitive, long-lifecycle commercial desktop deployments.

Availability

SLB9635TT12FW317NOXUMA1 is available at Aetrix Electronics and suitable for notebook motherboard manufacturing, desktop OEM platform validation, and Windows Vista-era security module replacement programs requiring stable component supply and long-term lifecycle assurance.

Supply support for SLB9635TT12FW317NOXUMA1 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 17025-accredited test labs.

This part belongs to Infineon's Embedded Security product line, designed specifically to deliver certified, standards-compliant hardware roots of trust for PC platforms - emphasizing tamper resistance, cryptographic acceleration, and seamless OS/driver integration.

FAQ

Is SLB9635TT12FW317NOXUMA1 compatible with modern Windows 10 or 11 systems?

No - this is a TCG 1.2 device and lacks mandatory TPM 2.0 features like SHA-256, ECC, and extended PCR banks required by Windows 10/11. It functions fully in Windows Vista through Windows 8.1 environments with appropriate BIOS support and WHQL drivers.

Does SLB9635TT12FW317NOXUMA1 include factory-programmed cryptographic keys?

Yes - it contains a unique, immutable Endorsement Key (EK) RSA-2048 key pair fused during manufacturing, along with an EK certificate issued by Infineon's certification authority, enabling immediate platform identity binding without external provisioning.

What security certifications does SLB9635TT12FW317NOXUMA1 hold?

It achieved Common Criteria EAL4+ certification at TÜViT Labs (Germany) under the TCG 1.2 evaluation target, covering cryptographic module robustness, side-channel resistance, and tamper detection logic - verified against AVA_VAN.5 and ASE_TSP.1 assurance requirements.

Can SLB9635TT12FW317NOXUMA1 be reprogrammed or updated in-system?

Yes - its embedded EEPROM supports field-upgradable TCG firmware via LPC interface using Infineon's TPM Professional Package tools; however, the Endorsement Key and silicon-level security logic remain permanently fixed and non-modifiable.

SLB9635TT12FW317NOXUMA1 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

SLB9635TT12FW317NOXUMA1 FAQ

1.How can I place an order for SLB9635TT12FW317NOXUMA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for SLB9635TT12FW317NOXUMA1 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 SLB9635TT12FW317NOXUMA1 reliable?

The price and inventory of SLB9635TT12FW317NOXUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SLB9635TT12FW317NOXUMA1 is usually 5 days.

3.What payment methods are accepted for SLB9635TT12FW317NOXUMA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SLB9635TT12FW317NOXUMA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SLB9635TT12FW317NOXUMA1?

SLB9635TT12FW317NOXUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SLB9635TT12FW317NOXUMA1 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 SLB9635TT12FW317NOXUMA1?

For technical support, including SLB9635TT12FW317NOXUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SLB9635TT12FW317NOXUMA1 requirements.

6.How does Aetrix verify that SLB9635TT12FW317NOXUMA1 is sourced from the original manufacturer or authorized distributors?

All SLB9635TT12FW317NOXUMA1 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 SLB9635TT12FW317NOXUMA1 meets industry standards.

7.What is the process for return or replacement of SLB9635TT12FW317NOXUMA1?

All SLB9635TT12FW317NOXUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with SLB9635TT12FW317NOXUMA1, 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 SLB9635TT12FW317NOXUMA1 part is unused and in its original packaging.

Return procedure for SLB9635TT12FW317NOXUMA1:

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…