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

Infineon Technologies SLB9665XQ20FW560XUMA2

Name: SLB9665XQ20FW560XUMA2
Brand: Infineon Technologies
SKU: SLB9665XQ20FW560XUMA2
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SLB9665XQ20FW560XUMA2

Manufacturer:: Infineon Technologies

Category:: Application Specific Microcontrollers

Package:: 32-VFQFN Exposed Pad

Datasheet:: SLB9665XQ20FW560XUMA2.pdf

Description:: SECURITY IC'S/AUTHENTICATION IC'

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Product details

Overview

SLB9665XQ20FW560XUMA2 from Infineon is a TPM 2.0 Trusted Platform Module compliant with TCG Main Specification v01.16 Level 00, featuring LPC interface, SHA-1/SHA-256 PCR support (24 PCRs), 7206 Byte NV memory, and enhanced temperature range (−40 °C to +85 °C). It serves as a hardware root-of-trust for secure boot, platform attestation, and cryptographic key protection in industrial PCs and embedded edge devices.

For engineers reviewing the SLB9665XQ20FW560XUMA2 datasheet, SLB9665XQ20FW560XUMA2 pinout, SLB9665XQ20FW560XUMA2 application, or SLB9665XQ20FW560XUMA2 equivalent, key selection criteria include LPC timing compliance, low standby current (150 µA typ.), RNG certification to NIST SP800-90A, and full EK personalization capability.

Technical Context

The SLB9665XQ20FW560XUMA2 implements a dedicated TPM 2.0 state machine with locality-based register access control over LPC, supporting only TPM-type read/write cycles-not legacy IO-mapped accesses. Its internal power management automatically transitions to low-power idle mode 50 ms after command completion, without requiring external LPCPD or CLKRUN signals.

It integrates a FIPS 140-2 validated random number generator, supports up to 3 loaded transient objects and 7 persistent objects, and provides 1280 Byte I/O buffer with configurable SHA-1/SHA-256 PCR algorithms. The device enforces strict access rights per locality (e.g., HASH.START write activates locality 4; HASH.END implicitly releases it).

Key Specifications

Parameter	Value and Actual Design Meaning
Interface	LPC bus only; supports TPM-type cycles only-no legacy IO cycles, enabling deterministic host-to-TPM communication in x86 platforms.
Temperature Range	−40 °C to +85 °C (enhanced grade); ensures reliable operation in industrial gateways and automotive infotainment head units.
Standby Current	150 µA typical; reduces system-level power budget in always-on security modules and battery-backed IoT controllers.
NV Memory	7206 Byte non-volatile storage; accommodates multiple EK certificates, platform configuration registers, and sealed data blobs.
PCR Count	24 Platform Configuration Registers; enables granular measurement of firmware, bootloader, OS kernel, and hypervisor integrity states.
RNG Compliance	NIST SP800-90A certified; provides cryptographically secure entropy for key generation and challenge-response protocols.
Session Limits	Up to 64 active sessions and 3 loaded sessions; supports concurrent attestation requests in multi-tenant virtualized environments.

Pinout & Package

SLB9665XQ20FW560XUMA2 uses the PG-VQFN-32-13 package (5.0 mm × 5.0 mm × 0.85 mm, 0.5 mm pitch), with wettable flank leads for automated optical inspection. Pinout conforms to Figure 2 in Infineon's SLB9665 datasheet Rev. 1.2.

Pin/Terminal	Circuit Role	Design Meaning
LCLK	LPC Clock Input	Accepts 33 MHz host clock; synchronizes all LPC transactions and internal state machine timing.
LRESET#	Active-Low Reset	Asynchronous reset signal; initiates cold start sequence and clears volatile session context.
LAD[3:0]	LPC Address/Data Bus	Time-multiplexed 4-bit bidirectional bus carrying address, command, and response data per LPC cycle.
LFRAME#	Frame Start Indicator	Signals beginning of LPC transaction; required for locality arbitration and cycle type detection.
LDRQ#	Host DMA Request	Not used by SLB9665; tied high or left unconnected per datasheet Table 6 (Not Connected).
VDD / VSS	Power / Ground	Single 3.3 V supply (±5%); decoupling required per recommended footprint (Figure 11) to suppress switching noise on LPC lines.

Key Features

Feature	Design Value
TPM 2.0 Certification	Fully compliant with TCG Main Spec v01.16 Level 00-enables Windows Hello, Intel TXT, and Chromebook qualification without firmware patching.
Endorsement Key Personalization	Factory-provisioned EK with X.509 certificate; eliminates post-silicon key injection steps and reduces manufacturing complexity.
Low-Power Idle Mode	150 µA standby current with automatic wake-on-LPC activity; extends battery life in portable medical and field service terminals.
Secure Hash Acceleration	Dedicated hardware SHA-1/SHA-256 engine for PCR extension; offloads CPU during measured boot and prevents timing side-channel leakage.
Linux Kernel Integration	Built-in driver support from Linux kernel v3.10+; enables transparent tpm_tis_core initialization and sysfs-based PCR read access.

Applications

Industrial Control System

Medical Device Secure Boot

Use Scenario: PLC controller performing remote firmware updates over cellular link.

IC Role / Device Role / Timing Role: Hardware root-of-trust verifying digital signatures on firmware images before execution.

Use Value: Prevents unauthorized code injection via authenticated PCR extension and sealed storage of update metadata.

Use Scenario: Portable ultrasound scanner requiring FDA-compliant secure boot and audit logging.

IC Role / Device Role / Timing Role: Cryptographic anchor for UEFI Secure Boot and runtime attestation of diagnostic software stack.

Use Value: Enables tamper-evident log sealing and meets IEC 62304 software lifecycle requirements for Class C devices.

Automotive Infotainment Head Unit

Edge AI Gateway

Use Scenario: In-vehicle infotainment system validating OTA updates from OEM cloud.

IC Role / Device Role / Timing Role: TPM-resident endorsement key signing platform measurements during boot and runtime.

Use Value: Supports ISO/SAE 21434 threat analysis by binding cryptographic identity to hardware configuration and software version.

Use Scenario: Smart factory gateway aggregating sensor data and enforcing zero-trust policy enforcement.

IC Role / Device Role / Timing Role: Secure element for TLS client authentication and hardware-bound key derivation for MQTT sessions.

Use Value: Provides hardware-isolated key storage resistant to software memory dump attacks in containerized edge workloads.

Equivalent & Alternatives

The following parts are listed as comparable options for similar TPM 2.0 security module applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
SLB9670XQ20FW560XUMA1	Successor with extended 10-year longevity program and updated NIST SP800-90B/C RNG; same VQFN-32 package and LPC interface.	Required for new designs targeting >2030 deployment; supports longer product lifecycle commitments.	Select when long-term supply assurance and latest crypto algorithm validation are mandatory.
ST33TPHF2ESAMF	Same LPC interface but uses SPI fallback; certified to Common Criteria EAL4+ (vs. SLB9665's FIPS 140-2 Level 2); different pinout (TSSOP-28).	Suitable where CC certification is contractually required (e.g., government systems); not pin-compatible.	Choose only if EAL4+ evaluation report acceptance outweighs LPC-only design simplicity.

Compared with SLB9665XQ20FW560XUMA2, SLB9670 offers future-proof RNG compliance and extended availability, while ST33TPHF2ESAMF trades LPC exclusivity for formal CC assurance-neither is drop-in replaceable due to package or interface divergence.

Availability

SLB9665XQ20FW560XUMA2 is available at Aetrix Electronics and suitable for industrial control systems, medical diagnostics equipment, automotive infotainment platforms, and edge AI gateways requiring stable component supply across extended product lifecycles.

Supply support for SLB9665XQ20FW560XUMA2 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, and automotive ICs, with global R&D centers and ISO/TS 16949-certified wafer fabs.

This device belongs to the OPTIGA™ TPM product line, engineered specifically for hardware-rooted trust in resource-constrained embedded platforms requiring certified cryptographic services and seamless OS integration.

FAQ

Is SLB9665XQ20FW560XUMA2 pin-compatible with SLB9660?

Yes, SLB9665XQ20FW560XUMA2 is explicitly designed as a pin-compatible upgrade to SLB9660, sharing identical VQFN-32 footprint and LPC signal mapping. No PCB redesign is needed when migrating, though firmware must be updated to leverage TPM 2.0 features like SHA-256 PCRs and enhanced session handling.

Does this device support SPI or I²C interfaces?

No, SLB9665XQ20FW560XUMA2 supports LPC interface only-no SPI, I²C, or UART functionality. The datasheet confirms exclusive reliance on LPC-type cycles (Section 1), and all electrical characteristics (Tables 10–11) specify LPC pin behavior exclusively.

What is the maximum allowed LPC clock frequency?

The device operates at up to 33 MHz LPC clock frequency, as defined in Table 12 (AC Characteristics) and validated in Figure 4 (LRESET# Timing). Exceeding this violates AC timing margins and may cause command loss or SYNC abort conditions per Table 1 access matrix.

Can the NV memory be used for custom application data storage?

Yes, 7206 Byte of NV memory is user-accessible via TPM2_NV_Write/Read commands after authorization. It supports up to 8 NV counters and arbitrary data blobs, subject to space allocation rules and authorization policies defined in the TPM Library Specification Part 3.

SLB9665XQ20FW560XUMA2 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: OPTIGA™ TPM

Package/Case:: 32-VFQFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Programmable:: Not Verified

Applications:: Trusted Platform Module (TPM)

Core Processor:: 16-Bit

Program Memory Type:: NVM (7.04kB)

Controller Series:: -

RAM Size:: -

Interface:: LPC

Number of I/O:: 1

Voltage - Supply:: 3V ~ 3.6V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-VQFN-32-13

SLB9665XQ20FW560XUMA2 FAQ

1.How can I place an order for SLB9665XQ20FW560XUMA2 through Aetrix?

Please submit a Request for Quotation (RFQ) for SLB9665XQ20FW560XUMA2 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 SLB9665XQ20FW560XUMA2 reliable?

The price and inventory of SLB9665XQ20FW560XUMA2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SLB9665XQ20FW560XUMA2 is usually 5 days.

3.What payment methods are accepted for SLB9665XQ20FW560XUMA2?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SLB9665XQ20FW560XUMA2 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SLB9665XQ20FW560XUMA2?

SLB9665XQ20FW560XUMA2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SLB9665XQ20FW560XUMA2 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 SLB9665XQ20FW560XUMA2?

For technical support, including SLB9665XQ20FW560XUMA2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SLB9665XQ20FW560XUMA2 requirements.

6.How does Aetrix verify that SLB9665XQ20FW560XUMA2 is sourced from the original manufacturer or authorized distributors?

All SLB9665XQ20FW560XUMA2 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 SLB9665XQ20FW560XUMA2 meets industry standards.

7.What is the process for return or replacement of SLB9665XQ20FW560XUMA2?

All SLB9665XQ20FW560XUMA2 units undergo pre-shipment inspection (PSI). If there is an issue with SLB9665XQ20FW560XUMA2, 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 SLB9665XQ20FW560XUMA2 part is unused and in its original packaging.

Return procedure for SLB9665XQ20FW560XUMA2:

1.Submit a request within 90 days.

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

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