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Infineon Technologies SLM9670AQ20FW1311XTMA1
- Part No.:
- SLM9670AQ20FW1311XTMA1
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Microcontrollers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
SLM9670AQ20FW1311XTMA1.pdf
- Description:
- INDUSTRIAL TPM SECURITY
- Quantity:
- Payment:
- Shipping:
Inventory:16,561
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Product details
Overview
SLM9670AQ20FW1311XTMA1 from Infineon is a TPM 2.0 Trusted Platform Module security controller for industrial systems, implementing RSA-2048, ECC NIST P256, SHA-256, and NIST SP800-90A-compliant RNG. It provides 6962 bytes of free NV memory, EAL4+ certification (BSI-DSZ-CC-1100-2018), and operates across -40°C to +105°C in PG-VQFN-32-13 package.
For engineers reviewing the SLM9670AQ20FW1311XTMA1 datasheet, SLM9670AQ20FW1311XTMA1 pinout, SLM9670AQ20FW1311XTMA1 application, or SLM9670AQ20FW1311XTMA1 equivalent, this page delivers verified technical context, SPI interface timing, secure key storage capacity, tamper-resistant MCU architecture, and industrial qualification per JEDEC JESD-47.
Technical Context
The SLM9670AQ20FW1311XTMA1 integrates a tamper-resistant secure MCU with dedicated cryptographic coprocessors for RSA-2048, ECC P256/BN256, SHA-1/SHA-256, and AES-128. Its internal memory bus and flash are encrypted, and physical attack detection includes shielding, voltage/temperature/frequency sensors, and error-detection units.
It implements full TPM 2.0 Main Specification Level 00 (Rev 1.38) via firmware pre-flashed at manufacture, supporting >90 TCG-defined commands including key generation, remote attestation, secured logging, and signature verification. Power management is fully autonomous: device wakes on SPI activity and returns to 110 µA standby after transaction completion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| TPM Standard | TCG TPM Main Specification 2.0, Level 00, Rev 1.38 - ensures interoperability with OS-level TPM stacks (e.g., Windows tpm2-tss, Linux kernel TPM drivers) |
| Cryptographic Algorithms | RSA-1024/2048, SHA-1/SHA-256, ECC NIST P256 & BN256 - enables FIPS 140-2-aligned asymmetric operations and hash-based attestation |
| NV Memory Capacity | 6962 bytes free non-volatile memory - sufficient for storing multiple keys, certificates, and policy objects without external secure storage |
| SPI Interface Speed | Up to 43 MHz - supports high-throughput command/response cycles in resource-constrained industrial hosts |
| Operating Temperature | -40°C to +105°C - qualified per JEDEC JESD-47 for use in industrial automation, PLCs, and edge gateways without derating |
| Supply Voltage | 1.8 V or 3.3 V - dual-rail compatibility simplifies integration into mixed-voltage industrial PCBs |
| Security Certification | Common Criteria EAL4+ (BSI-DSZ-CC-1100-2018) - validated protection profile for secure boot, device identity, and runtime integrity enforcement |
Pinout & Package
SLM9670AQ20FW1311XTMA1 is housed in a PG-VQFN-32-13 package (5 mm × 5 mm, 0.5 mm pitch, exposed thermal pad). Pin assignment follows Infineon's standardized TPM layout for SPI-based host attachment and hardware reset control.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Accepts 1.8 V or 3.3 V ±10%; decoupling required per datasheet Figure 3 for stable crypto operation |
| GND | Ground reference | System ground return path; tied to exposed thermal pad for EMC and thermal stability |
| SCLK | SPI clock input | Host-driven clock up to 43 MHz; synchronous timing critical for command framing and response validity |
| CS# | Chip select (active low) | Enables SPI communication; must be asserted before SCLK and deasserted after final byte transfer |
| MOSI | SPI master-out-slave-in | Carries host-to-TPM commands and parameters; sampled on SCLK rising edge |
| MISO | SPI master-in-slave-out | Carries TPM responses and status; driven by TPM only when CS# is active |
| RST# | Hardware reset (active low) | Asynchronous hard reset; initiates firmware reinitialization and clears volatile key slots |
| PIRQ# | Interrupt request output | Open-drain signal indicating pending asynchronous events (e.g., policy-triggered alerts or timer expiry) |
| GPIO | General-purpose I/O | Configurable as input or output; used for custom platform signaling or status indication per firmware configuration |
| PP | Physical presence input | Hardwired to platform switch or button; required for privileged operations like dictionary attack lockout reset |
Key Features
| Feature | Design Value |
|---|---|
| On-chip RNG | Fully hardware-based, NIST SP800-90A compliant - eliminates reliance on software PRNGs for key derivation and nonce generation |
| Endorsement Key (EK) | Factory-provisioned, immutable EK with certificate - establishes root-of-trust for device identity and attestation chains |
| Volatile Key Slots | Up to 3 keys simultaneously loaded in RAM - enables fast session key handling without NV wear |
| NV Key Storage | Up to 7 keys persistently stored - supports hierarchical key management (e.g., SRK → storage keys → application keys) |
| NV Counters | 8 monotonic counters - enforce anti-replay policies and limit credential usage (e.g., firmware update attempts) |
| Firmware Update Support | Secure in-field TPM firmware updates - enables patching of vulnerabilities without hardware replacement |
Applications
| Industrial Control System Security | Edge Gateway Device Identity |
|---|---|
|
Use Scenario: Securing programmable logic controllers (PLCs) and HMIs against unauthorized firmware modification and remote code injection. IC Role / Device Role / Timing Role: TPM acts as root-of-trust for secure boot and runtime integrity measurement; validates signed firmware images prior to execution. Use Value: Prevents persistent malware installation and ensures only authorized vendors can deploy updates - critical for functional safety compliance (IEC 62443). |
Use Scenario: Enabling zero-touch provisioning and mutual TLS authentication for industrial IoT gateways connecting to cloud platforms. IC Role / Device Role / Timing Role: Provides cryptographically bound device identity via EK-certificate chain; signs attestation reports during TLS handshake. Use Value: Eliminates manual certificate enrollment; enables scalable, automated onboarding of thousands of field-deployed gateways. |
| Remote Attestation for SCADA | Secure Configuration Lockdown |
|
Use Scenario: Verifying runtime integrity of supervisory control and data acquisition (SCADA) RTUs before granting remote access or command authorization. IC Role / Device Role / Timing Role: Generates signed PCR (Platform Configuration Register) digests reflecting bootloader, OS, and application state; sent to central security manager. Use Value: Detects memory corruption or unauthorized configuration changes in real time - blocks lateral movement during cyber incidents. |
Use Scenario: Protecting sensitive configuration parameters (e.g., network credentials, encryption keys) in industrial HMIs and drives from extraction or tampering. IC Role / Device Role / Timing Role: Stores encrypted configuration blobs in NV memory; decrypts only upon authenticated host request using bound session keys. Use Value: Ensures configuration remains confidential and tamper-evident even if flash memory is physically extracted. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TPM 2.0 security controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SLB9670VQ2.0 | TPM 1.2 compliant; lacks SHA-256, ECC, and 6962-byte NV memory - uses older cryptographic suite and smaller NV space | Restricted to legacy OS environments requiring TPM 1.2; not suitable for new designs targeting FIPS 140-2 or TCG 2.0 mandates | Select only for backward compatibility in maintenance-only deployments where firmware upgrade path is unavailable |
| ST33TPHF2ESAB | TPM 2.0 compliant; supports same algorithms but rated for -40°C to +85°C; uses SOIC-8 package instead of VQFN-32 | Limited to commercial-temperature industrial edge devices; larger footprint reduces board density vs. VQFN-32 | Prefer when existing PCB layout cannot accommodate VQFN or thermal margin exceeds +85°C requirement |
Compared with SLB9670VQ2.0 and ST33TPHF2ESAB, SLM9670AQ20FW1311XTMA1 uniquely combines full TPM 2.0 feature set, industrial temperature range (-40°C to +105°C), compact VQFN-32 packaging, and EAL4+ certification - making it the only option qualified for safety-critical automation systems requiring both cryptographic agility and environmental robustness.
Availability
SLM9670AQ20FW1311XTMA1 is available at Aetrix Electronics and suitable for industrial control systems, edge gateways, SCADA RTUs, and HMI platforms requiring stable component supply, long-term lifecycle support, and certified cryptographic assurance.
Supply support for SLM9670AQ20FW1311XTMA1 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 ICs, and security solutions, with global R&D and manufacturing infrastructure.
This part belongs to the OPTIGA™ TPM product line - designed specifically for industrial-grade trusted execution, secure boot, and hardware-rooted device identity in harsh-environment embedded systems.
FAQ
What is the purpose of the PIRQ# pin on SLM9670AQ20FW1311XTMA1?
The PIRQ# (Peripheral Interrupt Request) pin is an open-drain output that signals asynchronous events such as policy-triggered alerts, timer expiries, or pending TPM commands requiring host attention. It allows the host microcontroller to enter low-power states while remaining responsive to security-critical events without polling the SPI interface.
Does SLM9670AQ20FW1311XTMA1 support firmware updates in the field?
Yes - the device ships with factory-installed TPM firmware that supports secure, authenticated in-field updates via the SPI interface. Updates require valid digital signatures and adhere to TCG-specified update protocols to prevent unauthorized or malformed firmware injection.
How many cryptographic keys can be stored simultaneously in volatile memory?
The SLM9670AQ20FW1311XTMA1 supports up to three keys loaded into volatile RAM at any given time. These keys are cleared on power cycle or hardware reset, ensuring transient session keys do not persist beyond their intended operational window.
Is the Endorsement Key (EK) user-programmable or fixed at manufacture?
The Endorsement Key is factory-provisioned and permanently fused into the device during manufacturing. It cannot be altered, exported, or replaced - establishing a hardware-bound, unclonable root-of-trust essential for remote attestation and device identity binding.
SLM9670AQ20FW1311XTMA1 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 (6.8kB)
- Controller Series:
- -
- RAM Size:
- -
- Interface:
- SPI
- Number of I/O:
- 1
- Voltage - Supply:
- 1.65V ~ 1.95V, 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- PG-VQFN-32-13
SLM9670AQ20FW1311XTMA1 FAQ
1.How can I place an order for SLM9670AQ20FW1311XTMA1 through Aetrix?
Please submit a Request for Quotation (RFQ) for SLM9670AQ20FW1311XTMA1 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 SLM9670AQ20FW1311XTMA1 reliable?
The price and inventory of SLM9670AQ20FW1311XTMA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SLM9670AQ20FW1311XTMA1 is usually 5 days.
3.What payment methods are accepted for SLM9670AQ20FW1311XTMA1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SLM9670AQ20FW1311XTMA1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SLM9670AQ20FW1311XTMA1?
SLM9670AQ20FW1311XTMA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SLM9670AQ20FW1311XTMA1 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 SLM9670AQ20FW1311XTMA1?
For technical support, including SLM9670AQ20FW1311XTMA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SLM9670AQ20FW1311XTMA1 requirements.
6.How does Aetrix verify that SLM9670AQ20FW1311XTMA1 is sourced from the original manufacturer or authorized distributors?
All SLM9670AQ20FW1311XTMA1 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 SLM9670AQ20FW1311XTMA1 meets industry standards.
7.What is the process for return or replacement of SLM9670AQ20FW1311XTMA1?
All SLM9670AQ20FW1311XTMA1 units undergo pre-shipment inspection (PSI). If there is an issue with SLM9670AQ20FW1311XTMA1, 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 SLM9670AQ20FW1311XTMA1 part is unused and in its original packaging.
Return procedure for SLM9670AQ20FW1311XTMA1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SLM9670AQ20FW1311XTMA1 Tags
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AT97SC3204-U2A1A-20
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