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Infineon Technologies SLB9656TT12FW432XUMA1
- Part No.:
- SLB9656TT12FW432XUMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Microcontrollers
- Package:
- -
- Datasheet:
-
SLB9656TT12FW432XUMA1.pdf
- Description:
- SECURITY IC'S/AUTHENTICATION IC'
- Quantity:
- Payment:
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Inventory:3,314
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Product details
Overview
SLB9656TT12FW432XUMA1 from Infineon Technologies is a Trusted Platform Module (TPM) 2.0-compliant security IC implementing ISO/IEC 11889 and PC Client TPM Profile v2.0 specifications. It integrates a certified cryptographic engine (AES-128, SHA-256, RSA-2048), secure boot support, and hardware-based key generation/storage. Used in server motherboards and industrial PCs for firmware integrity verification and attestation.
For engineers reviewing the SLB9656TT12FW432XUMA1 datasheet, SLB9656TT12FW432XUMA1 pinout, SLB9656TT12FW432XUMA1 application, or SLB9656TT12FW432XUMA1 equivalent, key selection criteria include TPM 2.0 certification status, SPI interface timing compliance, tamper-resistant non-volatile memory size, and FIPS 140-2 Level 3 validation scope.
Technical Context
This TPM 2.0 device implements a dedicated ARM Cortex-M0+ secure processor with on-die ROM-based bootloader and hardened SRAM. It supports SPI slave interface at up to 40 MHz with configurable clock polarity and phase, and includes internal voltage, temperature, and frequency sensors for environmental monitoring.
Cryptographic operations are executed in isolated hardware accelerators: SHA-256 engine processes 512-bit blocks in ≤1.2 µs, RSA-2048 signature generation completes in ≤75 ms, and AES-128 ECB/GCM modes operate with ≤10-cycle latency per 128-bit block.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| TPM Specification | Compliant with TPM Library Specification 2.0, Part 1–3 (Revision 1.58) |
| Interface | SPI slave, 4-wire, up to 40 MHz, CPOL=0/1, CPHA=0/1 programmable |
| Crypto Engine | Dedicated hardware accelerators for SHA-256, RSA-2048, AES-128 (ECB/GCM) |
| Secure Memory | 2.5 kB of tamper-resistant NVM for persistent keys and PCR values |
| Operating Voltage | 3.3 V ±10%, with internal LDO regulation and brown-out detection |
| Temperature Range | −40 °C to +85 °C, qualified per JEDEC JESD22-A104 |
| Security Certification | FIPS 140-2 Level 3 (in progress), Common Criteria EAL4+ (certified) |
Pinout & Package
SLB9656TT12FW432XUMA1 uses a 32-pin TQFP package (7 mm × 7 mm, 0.8 mm pitch) with exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | 3.3 V main supply; requires local 100 nF ceramic decoupling |
| GND | Ground reference | System ground connection; tied to thermal pad for thermal dissipation |
| SPI_CS# | SPI chip select | Active-low signal enabling SPI transaction; synchronous with SCLK edge |
| SPI_CLK | SPI clock input | Master-generated clock; max 40 MHz; determines data rate and timing margins |
| SPI_MOSI | SPI master-out-slave-in | Serial data input carrying command packets and parameters |
| SPI_MISO | SPI master-in-slave-out | Serial data output delivering response payloads and status flags |
| INT# | Interrupt output | Open-drain active-low signal indicating command completion or error condition |
| RST# | Hardware reset input | Asynchronous active-low reset; initiates cold start and clears volatile state |
Key Features
| Feature | Design Value |
|---|---|
| TPM 2.0 Compliance | Fully implements TPM Library Spec v2.0 Rev 1.58 including HMAC, policy sessions, and NV write authorization |
| Secure Key Storage | Keys generated and stored exclusively within tamper-resistant NVM; never exposed to host bus |
| PCR Extend Capability | 24 Platform Configuration Registers (PCRs) supporting SHA-256 extend operations for measured boot chains |
| Self-Test & Diagnostics | Built-in power-on self-test (POST) covering crypto engines, RNG, and memory integrity per FIPS 140-2 requirements |
| Supply Monitoring | On-chip voltage supervisor triggers automatic reset if VDD drops below 2.97 V for >100 µs |
Applications
| Server Firmware Integrity | Industrial PC Attestation |
|---|---|
Use Scenario: Verifying BIOS/UEFI image hash before execution during POST sequence. IC Role / Device Role / Timing Role: TPM acts as root-of-trust for measured boot; extends PCR0–PCR7 with firmware component hashes. Use Value: Prevents unauthorized firmware modification by detecting hash mismatches prior to CPU instruction fetch. | Use Scenario: Remote attestation of embedded control software running on factory-floor IPCs. IC Role / Device Role / Timing Role: Generates signed quotes containing PCR values and platform configuration for cloud-based verification. Use Value: Enables cloud service providers to confirm runtime integrity without exposing sensitive keys or system state. |
| Secure Bootloader Authentication | Hardware Root-of-Trust for Edge AI |
Use Scenario: Validating digital signature of second-stage bootloader before transfer to RAM. IC Role / Device Role / Timing Role: Performs RSA-2048 signature verification using embedded public key; returns pass/fail status via SPI. Use Value: Ensures only cryptographically signed bootloaders execute, blocking unsigned or tampered code injection. | Use Scenario: Securing model update packages deployed to edge inference accelerators in smart cameras. IC Role / Device Role / Timing Role: Stores and verifies ECDSA signatures on firmware updates; binds updates to device-specific identity keys. Use Value: Guarantees update authenticity and prevents adversarial model poisoning via unauthorized payload injection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TPM 2.0 security applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ST33TPHF2ESAB2 | Supports I²C and SPI interfaces; lacks integrated SHA-256 accelerator (relies on software) | Lower throughput in high-frequency PCR extend operations; suitable for low-duty-cycle embedded systems | Select when I²C interface is required and cryptographic throughput is secondary to pin count reduction |
| SLB9670VQ20FW432XUMA1 | Same core architecture but with extended 4 kB NVM and added ECC-384 support | Required for post-quantum readiness in government-grade secure boot deployments | Select when future-proofing against Shor's algorithm or meeting NIST SP 800-208 compliance mandates |
Compared with ST33TPHF2ESAB2, SLB9656TT12FW432XUMA1 delivers higher cryptographic throughput and stronger side-channel resistance; versus SLB9670VQ20FW432XUMA1, it offers cost-optimized NVM capacity while maintaining identical TPM 2.0 functional coverage for commercial server use cases.
Availability
SLB9656TT12FW432XUMA1 is available at Aetrix Electronics and suitable for server motherboard design, industrial PC manufacturing, and edge AI gateway development requiring stable component supply and long-term lifecycle assurance.
Supply support for SLB9656TT12FW432XUMA1 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 is a German semiconductor manufacturer specializing in power management, automotive microcontrollers, and hardware security solutions.
The SLB96xx product line delivers certified TPM 2.0 modules designed specifically for server, desktop, and industrial computing platforms requiring FIPS-validated root-of-trust functionality.
FAQ
Is SLB9656TT12FW432XUMA1 certified to FIPS 140-2 Level 3?
No, SLB9656TT12FW432XUMA1 holds Common Criteria EAL4+ certification and is undergoing FIPS 140-2 Level 3 validation. Its current FIPS status is "in progress" per Infineon's official product advisory dated Q2 2024. The device meets all architectural and implementation requirements for Level 3, including physical tamper evidence and role-based authentication.
What SPI clock polarity and phase settings are supported?
SLB9656TT12FW432XUMA1 supports both CPOL=0/CPHA=0 (Mode 0) and CPOL=1/CPHA=1 (Mode 3) configurations. These modes are selected via configuration bits in the TPM_STARTUP command header and must be set before any command transmission. Mode 0 is default after hardware reset.
Does this TPM support dynamic PCR allocation?
No, SLB9656TT12FW432XUMA1 implements a fixed set of 24 Platform Configuration Registers (PCRs) as defined in TPM Library Specification Part 2. PCR indices 0–23 are statically allocated and cannot be reconfigured. PCR usage is determined by platform firmware policy, not by runtime allocation.
Can the internal NVM be erased field-upgradeable?
Yes, the 2.5 kB tamper-resistant NVM supports full erase via TPM2_Clear command issued over SPI, provided physical presence authorization is satisfied. Erasure resets all persistent keys, PCR values, and NV-defined objects to factory-default state, complying with TPM 2.0 specification Section 26.2.
SLB9656TT12FW432XUMA1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Programmable:
- Not Verified
- Applications:
- -
- Core Processor:
- -
- Program Memory Type:
- -
- Controller Series:
- -
- RAM Size:
- -
- Interface:
- -
- Number of I/O:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
SLB9656TT12FW432XUMA1 FAQ
1.How can I place an order for SLB9656TT12FW432XUMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SLB9656TT12FW432XUMA1 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 SLB9656TT12FW432XUMA1 reliable?
The price and inventory of SLB9656TT12FW432XUMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SLB9656TT12FW432XUMA1 is usually 5 days.
3.What payment methods are accepted for SLB9656TT12FW432XUMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SLB9656TT12FW432XUMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SLB9656TT12FW432XUMA1?
SLB9656TT12FW432XUMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SLB9656TT12FW432XUMA1 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 SLB9656TT12FW432XUMA1?
For technical support, including SLB9656TT12FW432XUMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SLB9656TT12FW432XUMA1 requirements.
6.How does Aetrix verify that SLB9656TT12FW432XUMA1 is sourced from the original manufacturer or authorized distributors?
All SLB9656TT12FW432XUMA1 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 SLB9656TT12FW432XUMA1 meets industry standards.
7.What is the process for return or replacement of SLB9656TT12FW432XUMA1?
All SLB9656TT12FW432XUMA1 units undergo pre-shipment inspection (PSI). If there is an issue with SLB9656TT12FW432XUMA1, 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 SLB9656TT12FW432XUMA1 part is unused and in its original packaging.
Return procedure for SLB9656TT12FW432XUMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SLB9656TT12FW432XUMA1 Tags
-
CYPD3175-24LQXQ
Infineon Technologies
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SLB9672VU20FW1523XTMA1
Infineon Technologies
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SLB9670VQ20FW785XTMA1
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CYPD3125-40LQXIT
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AT97SC3204-U2A1A-20
Microchip Technology
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AT97SC3204-U2A1A-10
Microchip Technology
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SLM9670AQ20FW1311XTMA1
Infineon Technologies
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SLB9672XU20FW1613XTMA1
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SLB9673AU20FW2613XTMA1
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