ATECC508A-SSHCZ-T

Product Overview

Category: Integrated Circuit (IC)

Use: Security and Authentication

Characteristics: - High-security cryptographic coprocessor - Hardware-based key storage and authentication - Secure boot and secure firmware update capabilities - Tamper-resistant design - Low-power consumption

Package: SSHCZ-T package

Essence: The ATECC508A-SSHCZ-T is a highly secure cryptographic coprocessor designed for applications that require robust security and authentication features.

Packaging/Quantity: Available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

The ATECC508A-SSHCZ-T offers the following specifications:

• Cryptographic Algorithm Support:

  • Elliptic Curve Cryptography (ECC)
  • Advanced Encryption Standard (AES)
  • SHA-256 Hash Algorithm

• Key Storage Capacity:

  • Up to 16 keys
  • Each key can be up to 72 bytes long

• Communication Interfaces:

  • I2C (Two-Wire Interface)
  • Single-wire interface (SWI)

• Operating Voltage Range: 1.8V to 5.5V

• Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ATECC508A-SSHCZ-T has the following pin configuration:

1. VCC: Power supply voltage
2. SDA: Serial Data Line (I2C)
3. SCL: Serial Clock Line (I2C)
4. RST: Reset pin
5. GND: Ground

Functional Features

The ATECC508A-SSHCZ-T offers the following functional features:

1. Secure Key Storage: The device securely stores cryptographic keys, protecting them from unauthorized access.
2. Authentication: It provides hardware-based authentication, ensuring the integrity and authenticity of connected devices.
3. Secure Boot: The coprocessor supports secure boot functionality, preventing unauthorized firmware execution during system startup.
4. Secure Firmware Update: It enables secure over-the-air firmware updates, ensuring the authenticity and integrity of the updated firmware.
5. Tamper Resistance: The device is designed to resist physical tampering attempts, protecting sensitive information.

Advantages and Disadvantages

Advantages: - High-security level - Hardware-based key storage - Support for multiple cryptographic algorithms - Secure boot and firmware update capabilities - Tamper-resistant design

Disadvantages: - Relatively higher cost compared to less secure alternatives - Requires additional development effort for integration into existing systems

Working Principles

The ATECC508A-SSHCZ-T operates based on the principles of secure key storage and authentication. It utilizes cryptographic algorithms such as ECC, AES, and SHA-256 to ensure data confidentiality, integrity, and authenticity. The device securely stores cryptographic keys and performs cryptographic operations, providing a high level of security for connected systems.

Detailed Application Field Plans

The ATECC508A-SSHCZ-T is widely used in various applications that require robust security and authentication, including:

1. Internet of Things (IoT) Devices: It ensures secure communication and authentication between IoT devices, protecting against unauthorized access and data breaches.
2. Secure Payment Systems: The coprocessor enhances the security of payment terminals, protecting sensitive financial information during transactions.
3. Smart Home Automation: It provides secure authentication and communication between smart home devices, ensuring privacy and preventing unauthorized control.
4. Industrial Control Systems: The device adds an extra layer of security to industrial control systems, safeguarding critical infrastructure from cyber threats.

Detailed and Complete Alternative Models

1. ATECC608A-SSHDA-B: Similar to ATECC508A-SSHCZ-T, but with higher key storage capacity and additional features like secure boot counter and hardware-based random number generator.
2. ATECC508A-MAHDA-T: Same as ATECC508A-SSHCZ-T, but in a different package (MAHDA-T) for specific application requirements.

These alternative models offer similar security features and can be considered based on specific project needs.

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