Infineon Technologies SLS32AIA010MLUSON10XTMA2

Overview

SLS32AIA010MLUSON10XTMA2 from Infineon is a Common Criteria EAL 6+ and PSA Level 3 certified security controller implementing I²C-based encrypted communication via Shielded Connection, supporting ECC (P-521, Brainpool r1 up to 512), RSA-2048, AES-256, SHA-256/512, HMAC, TLS v1.2 PRF, and HKDF - deployed in industrial control systems for secure firmware authentication and device identity binding.

For engineers reviewing the SLS32AIA010MLUSON10XTMA2 datasheet, SLS32AIA010MLUSON10XTMA2 pinout, SLS32AIA010MLUSON10XTMA2 application, or SLS32AIA010MLUSON10XTMA2 equivalent, key selection criteria include certified cryptographic agility, hibernation-enabled ultra-low leakage (<2.5 µA), 10 kB user memory allocation, PG-USON-10-2,-4 package compatibility, and I²C fast mode plus timing compliance.

Technical Context

The device integrates a tamper-resistant secure execution environment with four monotonic up counters, configurable security monitor, and protected object update capability for integrity- and confidentiality-verified data, key, and metadata objects. Its hibernation mode disables all internal clocks and power domains except retention logic, achieving sub-µA leakage.

It implements Infineon's proprietary I²C protocol registry map with BASE_ADDR and I2C_MODE registers, supports warm reset startup sequences compliant with Table 14, and enforces hardware-enforced crypto acceleration for asymmetric operations including ECDSA signature generation and verification on NIST P-256 in ≤120 ms (V3).

Key Specifications

Pinout & Package

Package: PG-USON-10-2,-4 (3 mm × 3 mm, 0.4 mm pitch, 10-terminal leadless ultra-thin small outline no-lead package with wettable flanks).

Key Features

Applications

Equivalent & Alternatives

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

Compared with ATECC608A-TFLXT and SLB9670, SLS32AIA010MLUSON10XTMA2 uniquely combines EAL 6+ certification, hibernation-ready ultra-low leakage, and broad algorithm support in a 3×3 mm USON package-making it optimal for space- and power-constrained industrial edge nodes requiring long-term security assurance.

Availability

SLS32AIA010MLUSON10XTMA2 is available at Aetrix Electronics and suitable for industrial control systems, smart home gateways, and cloud-connected sensors requiring stable component supply across multi-year production cycles.

Supply support for SLS32AIA010MLUSON10XTMA2 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 power management, automotive MCUs, and hardware security solutions with global manufacturing and qualification infrastructure.

This part belongs to the OPTIGA™ Trust M family - designed specifically for embedded systems requiring certified, low-footprint, I²C-connected root-of-trust functionality in industrial, building automation, and consumer IoT applications.

FAQ

What is the maximum I²C clock frequency supported by SLS32AIA010MLUSON10XTMA2?

The device supports I²C Fast Mode Plus with a maximum clock frequency of 1 MHz, verified per Table 10 of the datasheet. It maintains signal integrity under worst-case bus capacitance (400 pF) and meets tBUF (50 ns) and tHD:STA (250 ns) timing requirements without external clock stretching.

How does hibernation mode affect cryptographic operation latency?

Hibernation disables all internal clocks and resets the crypto accelerator state; resuming operation requires full wake-up sequence (≤10 ms) before any command execution. Cryptographic operations resume at full speed post-wake, with no latency penalty beyond initial wake time.

Can SLS32AIA010MLUSON10XTMA2 store multiple X.509 certificates?

Yes - its 10 kB user memory supports concurrent storage of device identity certificate, intermediate CA certificate, and root CA certificate, each stored as protected objects with access policies enforced by the security monitor.

Is GPIO pin mandatory for hibernation control?

No - hibernation can be entered via software command (0x70) alone, but GPIO control enables hardware-gated VCC shutdown for true zero-power states. Datasheet Figure 4 shows single-MOSFET implementation using GPIO as gate driver for external VCC switch.