DS2401AZ+T&R

Specialized ICS Overview

The DS2401AZ+T&R is a silicon serial number IC from Analog Devices, packaged in SOT-223-3. It provides a guaranteed unique 64-bit ROM ID for absolute traceability, comprising an 8-bit family code (01h), a 48-bit serial number, and an 8-bit CRC tester. The device utilizes a minimalist 1-Wire interface requiring only a single data pin and ground return. Operating within a voltage range of 3V to 5.25V and an industrial temperature range of -40°C to +85°C, it draws minimal input load current of 5µA. Power for reading the device is derived directly from the data line.

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: 3V to 5.25V Pullup Voltage
• Industrial Temperature Range: -40°C to +85°C

Specialized ICS Applications

• PCB Identification
• Network Node ID
• Equipment Registration

Specialized ICS Procurement Notes

Verify the specific package type and lead configuration against the datasheet ordering information. Confirm RoHS compliance status as indicated by the '+' suffix. Ensure the pullup resistor values align with the electrical characteristics for the DS2401A variant to maintain signal integrity during 1-Wire communication.

Specialized ICS Selection Notes

Select the DS2401AZ+T&R when a compact surface-mount solution is required for unique device identification. The 'A' designation indicates a specific electrical profile compared to the standard DS2401, particularly regarding pullup resistance ranges. Ensure the application supports the open-drain nature of the 1-Wire bus and accommodates the necessary pullup resistor values specified in the datasheet.

Specialized ICS Part Context

The DS2401 series serves as an electronic registration number providing a unique identity via a minimal interface. It is fully reverse-compatible with the DS2400 but adds multi-drop capability for multiple devices on a single data line. The DS2401A variant offers specific electrical characteristics optimized for certain bus loads and speeds.

Specialized ICS Replacement Considerations

The DS2401Z+T&R is a compatible alternative within the same series. Verify that the electrical parameters, specifically the pullup voltage and resistance requirements, match the system design constraints before substitution.