STSAFA110S8OCD03

Overview

The STSAFA110S8OCD03 is a secure element from the STSAFE-A110 series, designed for state-of-the-art authentication and secure data management. It integrates a secure operating system on a highly secure microcontroller core. The device supports supply voltages between 1.8 V and 5.5 V and operates within an industrial temperature range. Packaged in an 8-SOIC (SO-8) format with Tape & Reel or Cut Tape options, it provides Common Criteria EAL5+ certification. Key capabilities include ECC-based asymmetric cryptography, secure boot verification, TLS handshake support, and protection against side-channel attacks and environmental faults.

Feature Summary

• Common Criteria certified at EAL5+ with AVA_VAN5 assurance level
• Supports Elliptic Curve Cryptography (ECC) with NIST/Brainpool curves up to 384-bit
• Provides secure channel establishment including Transport Layer Security (TLS) handshake
• Integrates active shield and monitoring of environmental parameters for fault protection

Applications

• Authentication for consumables and peripherals
• Security for Internet of Things (IoT) connected objects
• USB Type-C power delivery charger authentication
• Qi over-the-air charger security

Procurement Notes

Verify the specific ordering suffix to ensure correct packaging configuration, as the STSAFA110 family utilizes distinct suffixes for different reel or cut tape quantities. Confirm that the selected variant matches the required interface protocol and voltage specifications for the target host application before finalizing procurement orders.

Selection Notes

Select this component when high-assurance hardware root of trust is required for IoT or peripheral authentication. Ensure the host system supports I2C communication for interacting with the secure element's API. Verify that the design accommodates the 8-SO package dimensions and that the operating voltage aligns with the 1.8 V to 5.5 V input range specified for the device.

Part Context

This part belongs to the STSAFE-A110 series, which represents a turnkey secure solution for embedded applications. The series is engineered to provide robust security services such as key storage, signature generation, and secure boot validation. It serves as a dedicated security coprocessor to offload cryptographic tasks from the main application processor.

Replacement Considerations

Direct pin-to-pin replacements within the same package are limited due to specific firmware and feature sets. Evaluate other STSAFE series members like the STSAFE-A100 or STSAFE-S320 only if their supported cryptographic algorithms and interface speeds meet the system requirements.

FAQ

What cryptographic standards does the STSAFA110S8OCD03 support?

It supports Elliptic Curve Digital Signature Algorithm (ECDSA) with SHA-256 and SHA-384, utilizing NIST or Brainpool curves up to 384 bits.

Is the device certified for high-security environments?

Yes, the underlying hardware is Common Criteria certified at EAL5+ with AVA_VAN5 assurance level.

How does the device handle secure communications with remote hosts?

It facilitates secure channel establishment with remote hosts, including performing Transport Layer Security (TLS) handshakes.