DS2401+T&R

Product Overview

• Category: Integrated Circuit
• Use: Identification and Authentication
• Characteristics: Programmable Silicon Serial Number
• Package: Tape & Reel
• Essence: Unique Electronic Serial Number (ESN)
• Packaging/Quantity: 2500 units per reel

Specifications

• Manufacturer: Maxim Integrated
• Supply Voltage: 2.8V to 6.0V
• Operating Temperature Range: -40°C to +85°C
• Memory Size: 64 bits
• Communication Interface: 1-Wire
• Data Transfer Speed: Up to 16.3kbps
• Unique Identifier: 48-bit ROM code
• Programmable Features: Write protection, alarm triggers, user-defined memory

Detailed Pin Configuration

The DS2401+T&R has a total of three pins:

1. GND: Ground connection.
2. DQ: Data line for communication with the device.
3. VCC: Power supply voltage.

Functional Features

• Unique Serial Number: Each DS2401+T&R has a globally unique 48-bit ROM code that serves as its electronic serial number (ESN).
• Programmable Memory: The device features 64 bits of non-volatile memory that can be used for storing additional information or configuration settings.
• Write Protection: The memory can be write-protected to prevent accidental modification of stored data.
• Alarm Triggers: The DS2401+T&R can be configured to generate an alarm signal when certain conditions are met.
• User-Defined Memory: A portion of the memory is reserved for user-defined purposes, allowing customization of the device's functionality.

Advantages and Disadvantages

Advantages: - Globally unique serial number ensures device identification and authentication. - Programmable memory allows customization for specific applications. - Write protection prevents unauthorized modification of stored data. - Alarm triggers enable event-based actions. - Wide operating temperature range makes it suitable for various environments.

Disadvantages: - Limited memory size may restrict the amount of additional information that can be stored. - Communication interface limited to 1-Wire protocol. - Requires external power supply.

Working Principles

The DS2401+T&R operates based on the 1-Wire communication protocol. It uses a single data line (DQ) for both power supply and bidirectional communication. The device is powered by the VCC pin, while communication with the host system occurs through the DQ pin.

During communication, the host system sends commands to read or write data from/to the DS2401+T&R. The device responds by transmitting the requested information or performing the specified operation. The unique 48-bit ROM code serves as the device's electronic serial number, allowing for identification and authentication purposes.

Detailed Application Field Plans

The DS2401+T&R finds applications in various fields, including:

1. Product Authentication: The unique serial number can be used to verify the authenticity of products, preventing counterfeiting.
2. Asset Tracking: The device can be attached to assets to track their movement and location.
3. Access Control: The DS2401+T&R can be integrated into access control systems to provide secure identification and authorization.
4. Inventory Management: By assigning a unique identifier to each item, the device enables efficient inventory tracking and management.
5. Anti-Tampering Measures: The DS2401+T&R can be used to detect tampering attempts by monitoring changes in its memory or alarm triggers.

Detailed and Complete Alternative Models

1. DS2401P+: Similar to DS2401+T&R, but available in a DIP package instead of tape & reel.
2. DS2401Z+: Enhanced version with extended memory size and additional programmable features.
3. DS2401R+: RoHS-compliant variant with lead-free packaging.

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