DS28E50Q+U

Product Overview

• Category: Integrated Circuit
• Use: Communication and Security
• Characteristics: High-performance, Secure Authentication
• Package: QFN (Quad Flat No-Lead)
• Essence: Secure Authenticator IC
• Packaging/Quantity: Tape & Reel, 2500 units per reel

Specifications

• Operating Voltage: 1.8V to 5.5V
• Communication Interface: I2C (2-wire)
• Memory Size: 4Kb EEPROM
• Authentication Methods: ECDSA (Elliptic Curve Digital Signature Algorithm), SHA-256 (Secure Hash Algorithm)
• Temperature Range: -40°C to +85°C
• Package Dimensions: 3mm x 3mm x 0.75mm

Pin Configuration

The DS28E50Q+U has a total of 8 pins:

1. VDD: Power Supply
2. GND: Ground
3. SDA: Serial Data Line (I2C)
4. SCL: Serial Clock Line (I2C)
5. ALERT#: Interrupt Output
6. RST#: Reset Input
7. NC: No Connection
8. NC: No Connection

Functional Features

• Secure Storage: The DS28E50Q+U provides secure storage for sensitive data with its 4Kb EEPROM.
• Authentication: It supports ECDSA and SHA-256 algorithms for secure authentication.
• Tamper Detection: The device includes tamper detection features to protect against physical attacks.
• Low Power Consumption: The IC operates at low power, making it suitable for battery-powered devices.
• Small Form Factor: With its compact QFN package, the DS28E50Q+U is ideal for space-constrained applications.

Advantages and Disadvantages

Advantages: - High-performance authentication - Secure storage for sensitive data - Tamper detection features - Low power consumption - Compact form factor

Disadvantages: - Limited memory size (4Kb)

Working Principles

The DS28E50Q+U is designed to provide secure authentication for various applications. It utilizes ECDSA and SHA-256 algorithms to ensure the integrity and authenticity of data. The IC communicates with a host microcontroller through the I2C interface, enabling seamless integration into existing systems. It also includes tamper detection mechanisms to safeguard against physical attacks.

Detailed Application Field Plans

The DS28E50Q+U finds applications in various fields, including:

1. IoT Devices: It can be used to authenticate and secure communication between IoT devices and cloud servers.
2. Medical Devices: The IC ensures the authenticity and confidentiality of patient data in medical devices.
3. Automotive: It provides secure authentication for vehicle components, preventing unauthorized access or tampering.
4. Industrial Control Systems: The DS28E50Q+U enhances the security of industrial control systems by authenticating communication between devices.

Detailed and Complete Alternative Models

1. DS28E50Q+T: Similar to DS28E50Q+U but comes in a different package (TSSOP).
2. DS28E50Q-100+: A higher temperature range variant (-40°C to +100°C) of DS28E50Q+U.
3. DS28E50Q-IND+: Industrial-grade version with extended temperature range and additional ruggedness features.

These alternative models offer similar functionality to the DS28E50Q+U but may have variations in package type, temperature range, or additional ruggedness for specific application requirements.

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