ATSHA204A-MAHCZ-S

Product Overview

Category

ATSHA204A-MAHCZ-S belongs to the category of cryptographic authentication devices.

Use

This product is primarily used for secure authentication and data protection in various electronic systems.

Characteristics

• High-level security: ATSHA204A-MAHCZ-S provides robust cryptographic algorithms to ensure secure communication and data integrity.
• Compact package: The device comes in a small form factor, making it suitable for integration into space-constrained designs.
• Low power consumption: It operates efficiently with minimal power requirements, making it ideal for battery-powered applications.
• Easy integration: ATSHA204A-MAHCZ-S offers a simple interface and can be easily integrated into existing systems.

Package and Quantity

The ATSHA204A-MAHCZ-S is available in a compact surface-mount 8-lead SOIC package. It is typically sold in reels containing 250 units.

Specifications

• Operating Voltage: 2.0V to 5.5V
• Communication Interface: I2C
• Cryptographic Algorithm: SHA-256
• Non-volatile Memory: 4.5KB EEPROM
• Temperature Range: -40°C to +85°C

Pin Configuration

The ATSHA204A-MAHCZ-S has the following pin configuration:

1. VCC: Power supply input
2. SDA: I2C data line
3. SCL: I2C clock line
4. RESET: Reset input
5. GND: Ground
6. NC: No connection
7. NC: No connection
8. VCC: Power supply input

Functional Features

• Secure Authentication: ATSHA204A-MAHCZ-S provides secure key storage and cryptographic functions, ensuring only authorized entities can access protected resources.
• Data Protection: It offers secure storage and verification of data, protecting against tampering or unauthorized modifications.
• Random Number Generation: The device includes a hardware-based random number generator for generating unpredictable cryptographic keys.

Advantages

• High Security: ATSHA204A-MAHCZ-S employs advanced cryptographic algorithms, providing robust protection against various attacks.
• Easy Integration: It offers a simple interface and can be easily integrated into existing systems without significant design changes.
• Low Power Consumption: The device operates efficiently, minimizing power consumption and extending battery life in portable applications.

Disadvantages

• Limited Memory: The 4.5KB EEPROM may not be sufficient for storing large amounts of data in some applications.
• Single Communication Interface: ATSHA204A-MAHCZ-S only supports the I2C communication interface, which may limit compatibility with certain systems.

Working Principles

ATSHA204A-MAHCZ-S utilizes a combination of cryptographic algorithms, including SHA-256, to ensure secure authentication and data protection. It securely stores cryptographic keys and performs encryption and decryption operations as required by the system.

When a request for authentication or data access is received, the device verifies the authenticity of the requesting entity using stored keys and cryptographic functions. If the authentication is successful, the requested operation is allowed; otherwise, access is denied.

Application Field Plans

The ATSHA204A-MAHCZ-S finds applications in various fields, including:

1. IoT Devices: It provides secure authentication and data protection in connected devices, ensuring secure communication between devices and cloud services.
2. Smart Cards: The device enhances the security of smart cards used for payment, identification, and access control systems.
3. Embedded Systems: ATSHA204A-MAHCZ-S can be integrated into embedded systems to protect sensitive data and prevent unauthorized access.
4. Industrial Control Systems: It ensures secure communication and protects critical data in industrial control systems, preventing unauthorized access or tampering.

Alternative Models

1. ATSHA204A-MAHDA-S: Similar to ATSHA204A-MAHCZ-S, but with a different package and pin configuration.
2. ATSHA204A-MAHDA-T: Another variant of the ATSHA204A series, offering similar features but in a different package and quantity options.
3. ATSHA204A-MAHDA-U: A higher-end model with extended memory capacity and additional security features.

These alternative models provide similar functionality and can be considered based on specific application requirements.

In conclusion, the ATSHA204A-MAHCZ-S is a cryptographic authentication device that offers high-level security, easy integration, and low power consumption. It finds applications in various fields, including IoT devices, smart cards, embedded systems, and industrial control systems. While it has limited memory and supports only the I2C interface, alternative models are available to cater to different needs.