ATECC608A-SSHCZ-T

Product Overview

Category: Integrated Circuit (IC)

Use: Security and Authentication

Characteristics: - High-security cryptographic coprocessor - Hardware-based key storage and authentication - Robust protection against physical attacks - Secure boot and secure firmware update capabilities

Package: SSHCZ-T package

Essence: The ATECC608A-SSHCZ-T is a highly secure cryptographic coprocessor designed for applications that require strong security and authentication features.

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

Specifications

The ATECC608A-SSHCZ-T offers the following specifications:

• Cryptographic Support:

  • Elliptic Curve Cryptography (ECC) with NIST P256/P384 curves
  • SHA-256 hash algorithm
  • AES-128 encryption/decryption
  • HMAC-SHA-256 authentication

• Memory:

  • 8KB EEPROM for secure data storage
  • 416B EEPROM for general-purpose use

• Interfaces:

  • I2C interface for communication with the host microcontroller
  • Single-wire interface (SWI) for secure communication with other devices

• Operating Voltage: 1.62V to 5.5V

• Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ATECC608A-SSHCZ-T has the following pin configuration:

1. VCC: Power supply input
2. SDA: I2C data line
3. SCL: I2C clock line
4. SWI: Single-wire interface data line
5. GND: Ground connection

Functional Features

The ATECC608A-SSHCZ-T offers the following functional features:

1. Secure Key Storage: The device securely stores cryptographic keys, preventing unauthorized access and tampering.
2. Authentication: It provides hardware-based authentication, ensuring the integrity and authenticity of data and devices.
3. Secure Boot: The coprocessor supports secure boot functionality, protecting the system against firmware-level attacks.
4. Secure Firmware Update: It enables secure over-the-air firmware updates, ensuring the integrity and confidentiality of the update process.

Advantages and Disadvantages

Advantages: - High-security level with robust protection against physical attacks - Hardware-based key storage enhances security - Supports multiple cryptographic algorithms - Secure boot and firmware update capabilities provide additional protection

Disadvantages: - Limited memory capacity for general-purpose use (416B)

Working Principles

The ATECC608A-SSHCZ-T operates based on the principles of hardware-based security. It utilizes cryptographic algorithms to perform secure operations such as key generation, encryption, decryption, and authentication. The device's secure key storage ensures that sensitive information remains protected even in the event of a physical attack.

Detailed Application Field Plans

The ATECC608A-SSHCZ-T is suitable for various applications that require strong security and authentication, including:

1. IoT Devices: Provides secure communication and authentication for connected devices in IoT networks.
2. Payment Systems: Ensures secure transactions and protects sensitive payment data.
3. Smart Home Security: Enhances the security of smart home systems by authenticating devices and securing communication channels.
4. Industrial Control Systems: Protects critical infrastructure by providing secure authentication and preventing unauthorized access.

Detailed and Complete Alternative Models

1. ATECC508A-SSHDA-B: Similar to ATECC608A-SSHCZ-T but with a different package and lower memory capacity.
2. ATECC608A-MAHDA-B: Offers the same features as ATECC608A-SSHCZ-T but with a different package and higher memory capacity.

These alternative models provide similar security and authentication capabilities, allowing users to choose the most suitable option based on their specific requirements.

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