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

Infineon Technologies SLS32AIA020X2USON10XTMA4

Name: SLS32AIA020X2USON10XTMA4
Brand: Infineon Technologies
SKU: SLS32AIA020X2USON10XTMA4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SLS32AIA020X2USON10XTMA4

Manufacturer:: Infineon Technologies

Category:: Application Specific Microcontrollers

Package:: 10-UFDFN Exposed Pad

Datasheet:: SLS32AIA020X2USON10XTMA4.pdf

Description:: OPTIGA TRUST

Quantity:: RFQ Add To RFQ list

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Inventory:3,544

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Product details

Overview

SLS32AIA020X2USON10XTMA4 from Infineon is a Common Criteria EAL6+ certified security controller implementing mutual authentication via ECDSA (NIST P256/P384), DTLS client (RFC 6347), and USB Type-C™ Authentication standard compliance. It features 10 kB user memory, I²C Fast Mode Plus interface (up to 1 MHz), and operates across −40°C to +105°C in PG-USON-10-2 (3 × 3 mm) package for industrial automation and medical device secure boot.

For engineers reviewing the SLS32AIA020X2USON10XTMA4 datasheet, SLS32AIA020X2USON10XTMA4 pinout, SLS32AIA020X2USON10XTMA4 application, or SLS32AIA020X2USON10XTMA4 equivalent, key selection criteria include EAL6+ hardware certification, pre-provisioned ECC key pairs, DTLS client stack integration, and extended temperature support for harsh-environment embedded systems.

Technical Context

The device integrates a tamper-resistant NVM and dedicated crypto engine supporting asymmetric operations (ECDSA sign/verify, ECDH, key derivation), symmetric AES-128 (via DTLS), SHA-256 hashing, TRNG/DRNG entropy sources, and Device Security Monitor for runtime threat detection. Its firmware includes locked OS/application code with preprogrammed X.509 certificates and customer-specific trust anchors.

Communication uses Infineon's proprietary I²C protocol (IFX I2C) over standard I²C physical layer, supporting Fast Mode Plus timing (t_LOW ≥ 1.3 μs, t_HIGH ≥ 0.6 μs) and configurable pull-up resistors per host system requirements. Power management includes low-power sleep mode with wake-on-I²C activity.

Key Specifications

Parameter	Value and Actual Design Meaning
Security Certification	Common Criteria EAL6+ (high), certifying resistance to physical and logical attacks on keys and stored data
Crypto Algorithms	ECC NIST P256/P384, AES-128 (DTLS), SHA-256, TRNG/DRNG - enabling full PKI stack offload
I²C Interface	Fast Mode Plus (1 MHz), IFX-protocol layered - ensures deterministic command framing and error recovery
User Memory	10 kB non-volatile memory - stores up to four X.509 certificates and arbitrary protected objects
Operating Temp	−40°C to +105°C (ETR) - qualified for industrial automation, medical, and infrastructure deployments
Package	PG-USON-10-2 (3 × 3 × 0.55 mm) - surface-mount, lead-free, moisture-sensitive level 3
Authentication	ECDSA-based mutual auth + USB Type-C™ Auth standard compliance - enables secure peripheral identity binding

Pinout & Package

PG-USON-10-2 is a 10-pin, 3 mm × 3 mm, ultra-thin plastic package with exposed thermal pad, optimized for space-constrained IoT and industrial modules.

Pin/Terminal	Circuit Role	Design Meaning
VDD	Power supply input	2.3–3.6 V DC supply; decoupling capacitor required within 1 mm of pin
GND	Ground reference	Connected to PCB ground plane; tied to thermal pad for thermal dissipation
SCL	I²C clock input	Open-drain, supports FM+ timing; requires external pull-up to VDD
SDA	I²C data bidirectional	Open-drain, supports FM+ timing; shares pull-up with SCL per IFX I2C spec
RST	Active-low reset input	Asynchronous hardware reset; internal pull-down; min pulse width 100 ns
INT	Interrupt output	Open-drain alert signal indicating command completion or security event
NC	No connect	Pin 7 and Pin 8 are unconnected; must remain floating or grounded per layout guidelines
TPAD	Test pad	Factory test access only; not for user circuit connection
THPAD	Thermal pad	Exposed copper pad for heat conduction; must be soldered to solid ground plane
NC	No connect	Pin 10 is unconnected; no routing or termination required

Key Features

Feature	Design Value
Pre-provisioned ECC key pairs	Unique NIST P256/P384 private keys generated and certified at CC EAL6+ fab; public keys signed by customer CA
DTLS client stack	Firmware-integrated RFC 6347 DTLS client - eliminates host MCU crypto overhead for encrypted sensor/cloud comms
Device Security Monitor	Real-time detection of voltage, frequency, temperature, and glitch anomalies - triggers secure wipe on violation
Host Software Library	Production-ready C API (OCP, AUTH, Command Lib) with XMC4500 reference code - reduces integration to <72 hours
Lifetime rating	20-year operational life for Industrial Automation & Infrastructure profiles - validated under accelerated aging tests

Applications

Industrial Control & Automation

Medical Devices

Use Scenario: Secure firmware updates and device identity verification in PLCs and HMIs operating in factory-floor environments.

IC Role / Device Role / Timing Role: Root-of-trust for authenticated boot and signed OTA updates using pre-stored trust anchors.

Use Value: Prevents unauthorized firmware injection and ensures only vendor-signed binaries execute, meeting IEC 62443-3-3 SL2 requirements.

Use Scenario: Patient data encryption and regulatory-compliant device authentication in portable diagnostic equipment.

IC Role / Device Role / Timing Role: Cryptographic co-processor for HIPAA/FDA-aligned TLS handshakes and local certificate storage.

Use Value: Enables end-to-end confidentiality of PHI without burdening low-power Cortex-M4 host MCU with AES/ECC cycles.

Smart Home Gateways

USB-C Peripheral Authentication

Use Scenario: Securing Zigbee/Z-Wave bridge communication and protecting cloud API keys in residential gateways.

IC Role / Device Role / Timing Role: Secure enclave for credential storage and mutual TLS with cloud services.

Use Value: Isolates sensitive keys from compromised Linux application layers, preventing credential exfiltration via rootkits.

Use Scenario: Enforcing USB Type-C™ Authentication standard for certified accessories (e.g., docks, chargers).

IC Role / Device Role / Timing Role: Hardware-backed identity provider verifying accessory digital signatures during plug-in handshake.

Use Value: Blocks counterfeit peripherals by validating ECDSA signatures against OEM CA chain stored in protected NVM.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STSAFE-A110 (STMicroelectronics)	EAL5+ certified; supports only P256 ECC; no native DTLS client; 2 kB user memory	Limited to one-way authentication and basic TLS offload; lacks USB-C Auth compliance	Select when cost sensitivity outweighs need for DTLS or extended temp range
MAX32520 (Maxim Integrated)	EAL6+ certified; ARM TrustZone-enabled; supports P521 ECC; 16 kB user memory; SPI/I²C	Requires host-side TrustZone integration; broader crypto suite but higher BOM cost and power	Select when multi-protocol flexibility (SPI + I²C) and larger memory for dual-domain certs are required

Compared with STSAFE-A110 and MAX32520, SLS32AIA020X2USON10XTMA4 uniquely delivers production-ready DTLS client firmware, USB-C Auth compliance, and 20-year industrial lifetime-all in a 3×3 mm USON package-making it optimal for high-assurance, space-constrained edge nodes.

Availability

SLS32AIA020X2USON10XTMA4 is available at Aetrix Electronics and suitable for industrial control systems, medical diagnostics equipment, smart home gateways, and USB-C peripheral authentication requiring stable component supply across extended temperature ranges and long lifecycle commitments.

Supply support for SLS32AIA020X2USON10XTMA4 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 leader specializing in power management, sensing, and security ICs, with over 20 billion security controllers shipped globally.

SLS32AIA020X2USON10XTMA4 belongs to the OPTIGA™ Trust X product line, designed specifically to deliver turnkey, CC-certified hardware roots of trust for resource-constrained IoT and industrial endpoints requiring zero-touch secure onboarding.

FAQ

What is the maximum I²C clock frequency supported by SLS32AIA020X2USON10XTMA4?

The device supports I²C Fast Mode Plus operation up to 1 MHz, with guaranteed timing margins (t_LOW ≥ 1.3 μs, t_HIGH ≥ 0.6 μs) and compatibility with standard I²C bus analyzers. Pull-up resistor values must be selected based on bus capacitance and target frequency, typically 2.2 kΩ for ≤400 kHz and 1 kΩ for 1 MHz operation.

Does SLS32AIA020X2USON10XTMA4 require external firmware updates for DTLS functionality?

No. The DTLS client stack (RFC 6347 compliant) is embedded in factory-programmed firmware and requires no field updates. Host systems invoke it via the OCP library API; only configuration parameters (e.g., cipher suites, timeout values) are runtime-configurable through documented I²C commands.

How is unique key provisioning performed during manufacturing?

At Infineon's CC EAL6+ certified facility, each unit generates cryptographically secure ECC key pairs on-die. Public keys are signed by the customer's designated CA into X.509 certificates, then written to protected NVM. Private keys never leave the silicon and are inaccessible even during debug or probe attempts.

Can SLS32AIA020X2USON10XTMA4 operate outside its specified −40°C to +105°C range?

No. Operation beyond −40°C to +105°C is not characterized or guaranteed. Extended temperature qualification includes thermal cycling, high-temperature operating life (HTOL), and storage testing per AEC-Q200. Functionality or reliability outside this range may degrade unpredictably and void warranty.

SLS32AIA020X2USON10XTMA4 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: OPTIGA™ Trust X

Package/Case:: 10-UFDFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Not For New Designs

Programmable:: Not Verified

Applications:: Embedded Security Trusted Computing

Core Processor:: 16-Bit

Program Memory Type:: NVM (10kB)

Controller Series:: -

RAM Size:: -

Interface:: I2C

Number of I/O:: -

Voltage - Supply:: 1.62V ~ 5.5V

Operating Temperature:: -40°C ~ 105°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: PG-USON-10-2

SLS32AIA020X2USON10XTMA4 FAQ

1.How can I place an order for SLS32AIA020X2USON10XTMA4 through Aetrix?

Please submit a Request for Quotation (RFQ) for SLS32AIA020X2USON10XTMA4 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 SLS32AIA020X2USON10XTMA4 reliable?

The price and inventory of SLS32AIA020X2USON10XTMA4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SLS32AIA020X2USON10XTMA4 is usually 5 days.

3.What payment methods are accepted for SLS32AIA020X2USON10XTMA4?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SLS32AIA020X2USON10XTMA4 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SLS32AIA020X2USON10XTMA4?

SLS32AIA020X2USON10XTMA4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SLS32AIA020X2USON10XTMA4 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 SLS32AIA020X2USON10XTMA4?

For technical support, including SLS32AIA020X2USON10XTMA4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SLS32AIA020X2USON10XTMA4 requirements.

6.How does Aetrix verify that SLS32AIA020X2USON10XTMA4 is sourced from the original manufacturer or authorized distributors?

All SLS32AIA020X2USON10XTMA4 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 SLS32AIA020X2USON10XTMA4 meets industry standards.

7.What is the process for return or replacement of SLS32AIA020X2USON10XTMA4?

All SLS32AIA020X2USON10XTMA4 units undergo pre-shipment inspection (PSI). If there is an issue with SLS32AIA020X2USON10XTMA4, 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 SLS32AIA020X2USON10XTMA4 part is unused and in its original packaging.

Return procedure for SLS32AIA020X2USON10XTMA4:

1.Submit a request within 90 days.

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

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