DS2401+

Specialized ICS Overview

The DS2401+ is a silicon serial number integrated circuit manufactured by Analog Devices Inc./Maxim Integrated, housed in a TO-92-3 through-hole package. It provides a guaranteed unique 64-bit ROM ID consisting of an 8-bit family code (01h), a 48-bit serial number, and an 8-bit CRC. The device utilizes a minimalist 1-Wire interface requiring only a single data pin and ground return. Operating within a voltage range of 2.8V to 6.0V and a temperature range of -40°C to +85°C, it draws a maximum input load current of 5µA. Power for reading the device is derived from the data line itself.

Specialized ICS Feature Summary

• Guaranteed Unique 64-Bit ROM ID with 8-Bit Family Code, 48-Bit Serial Number, and 8-Bit CRC
• Minimalist 1-Wire Interface Reduces Control, Address, Data, and Power to a Single Pin
• Extended Voltage Range of 2.8V to 6.0V with Zero Standby Power Required
• Industrial Temperature Range of -40°C to +85°C

Specialized ICS Applications

• PCB Identification
• Network Node ID
• Equipment Registration

Specialized ICS Procurement Notes

Verify that the specific order matches the required lead configuration. The standard DS2401+ uses formed leads, while straight lead versions are designated as DS2401-SL+. Confirm the package type aligns with the PCB footprint requirements before finalizing procurement.

Specialized ICS Selection Notes

Select the DS2401+ for applications requiring absolute traceability via a unique silicon serial number. Ensure the system design accommodates the 1-Wire protocol constraints, including appropriate pullup resistor values (typically 1.5kΩ to 5kΩ) and open-drain bus controller configurations for proper communication.

Specialized ICS Part Context

The DS2401+ serves as an electronic registration number providing a unique identity determined with minimal electronic interface. It is an upgrade to the DS2400, offering full reverse-compatibility while adding multi-drop capability to allow multiple devices on a single data line. The component is designed for compact enclosure using standard assembly equipment.

Specialized ICS Replacement Considerations

The DS2401A+ is a compatible variant within the same series. Note that the DS2401A+ supports Match ROM and Skip ROM commands, whereas the standard DS2401+ does not. Verify command compatibility if replacing in an existing multidrop configuration.