DS2502

Product Overview

• Category: Integrated Circuit
• Use: Identification and Authentication
• Characteristics: Non-volatile memory, Unique 64-bit serial number, Low power consumption
• Package: SOT-23 or TO-92
• Essence: Electronic identification device
• Packaging/Quantity: Typically sold in reels of 3000 units

Specifications

• Memory Size: 1024 bits (128 bytes)
• Operating Voltage: 2.8V to 6.0V
• Operating Temperature: -40°C to +85°C
• Data Retention: Over 10 years
• Write Endurance: 1 million cycles

Detailed Pin Configuration

The DS2502 has three pins:

1. VCC: Power supply pin (2.8V to 6.0V)
2. GND: Ground pin
3. DATA: Bidirectional data pin for communication

Functional Features

• Unique 64-bit serial number assigned during manufacturing
• Memory can be read and written using a simple protocol
• Supports overwriting individual memory bytes
• Provides tamper-proof electronic identification

Advantages and Disadvantages

Advantages

• Compact size and low power consumption
• Easy integration into existing systems
• High data retention and write endurance
• Cost-effective solution for identification purposes

Disadvantages

• Limited memory capacity compared to other ICs
• Requires specific protocols for communication
• Vulnerable to physical damage if not properly protected

Working Principles

The DS2502 is based on the principle of non-volatile memory storage. It utilizes a unique 64-bit serial number to identify and authenticate objects or devices. The memory can be accessed through a bidirectional data pin, allowing read and write operations. The IC operates within a specified voltage range and temperature limits.

Detailed Application Field Plans

The DS2502 finds applications in various fields, including:

1. Asset Tracking: Used to track and identify valuable assets such as equipment, vehicles, or inventory.
2. Access Control: Integrated into access control systems for secure identification and authentication of individuals.
3. Product Authentication: Employed to verify the authenticity of products and prevent counterfeiting.
4. Medical Devices: Utilized in medical devices for patient identification and tracking.

Detailed and Complete Alternative Models

• DS2401: Similar functionality with a smaller memory size (256 bits)
• DS1990A: Provides 64-bit unique serial number but lacks additional memory storage
• DS28E01: Offers extended memory capacity (1Kb) with similar features

In conclusion, the DS2502 is an integrated circuit primarily used for identification and authentication purposes. It offers a unique 64-bit serial number and non-volatile memory storage. With its compact size, low power consumption, and cost-effectiveness, it finds applications in asset tracking, access control, product authentication, and medical devices. Alternative models such as DS2401, DS1990A, and DS28E01 provide different memory capacities and functionalities to suit specific requirements.