STSAFA110S8SPL03

Overview

The STSAFA110S8SPL03 is an authentication chip from STMicroelectronics, belonging to the STSAFE-A series. It functions as a secure element providing authentication and secure data management services for local or remote hosts. The device operates on a secure operating system running on a highly secure microcontroller core. Key electrical specifications include a supply voltage range of 2.7 V to 5.5 V and an operating temperature range of -40°C to +105°C. It features an I2C interface and is housed in an 8-SOIC package.

Feature Summary

• CC EAL5+ AVA_VAN5 Common Criteria certified security level
• Supports Elliptic Curve Cryptography (ECC) with NIST or Brainpool curves
• Provides unique serial number and X.509 certificate for device authentication
• Includes active shield and environmental parameter monitoring

Applications

• IoT connected objects authentication
• Consumables and peripherals protection
• USB Type-C power delivery chargers
• Secure channel establishment with remote host

Procurement Notes

Verify the specific ordering suffix SPL03 against official STMicroelectronics documentation to confirm package type and tape/reel configuration. Ensure compatibility with the host system's I2C interface requirements and voltage levels within the 2.7 V to 5.5 V range before integration.

Selection Notes

Select this component when high-assurance authentication is required for IoT devices or peripherals. It is suitable for applications needing CC EAL5+ certification and support for advanced asymmetric cryptography like ECDSA with SHA-256/384. Consider the 8-SOIC package constraints for PCB layout.

Part Context

This part belongs to the STSAFE-A110 family, which offers state-of-the-art security for peripherals and IoT devices. The STSAFE-A series is designed to protect OEMs against cloning, counterfeiting, and malware injection through pre-provisioned secrets and certificates in a trusted supply chain.

Replacement Considerations

Check for other STSAFE-A110 variants with different packaging options such as SO-8 Reel or Cut Tape if bulk packaging is not preferred. Verify pinout and software library compatibility with existing STM32-based designs.