DS2401AP+T&R

Specialized ICS Overview

The DS2401AP+T&R is a silicon serial number integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. It provides a guaranteed unique 64-bit ROM ID for absolute traceability, comprising an 8-bit family code (01h), a 48-bit unique serial number, and an 8-bit CRC tester. The device utilizes a minimalist 1-Wire interface requiring only a single data lead and ground return, with power derived from the data line itself. It operates within a voltage range of 2.8V to 6.0V and supports data rates up to 16.3kbps. The component is housed in a 6-TSOC surface-mount package and functions across an industrial temperature range of -40°C to +85°C.

Specialized ICS Feature Summary

• Guaranteed Unique 64-Bit ROM ID: Includes 48-bit serial number, 8-bit family code, and 8-bit CRC for error-free verification.
• Minimalist 1-Wire Interface: Requires only one signal pin and ground; supports multidrop communication on a common bus.
• Parasitic Power Operation: Derives power directly from the data line, eliminating the need for an external power source.
• Industrial Temperature Range: Designed for reliable operation between -40°C and +85°C.

Specialized ICS Applications

• PCB Identification
• Network Node ID
• Equipment Registration

Specialized ICS Procurement Notes

Verify the specific ordering suffix against official documentation to confirm package type and lead configuration. The 'AP' designation indicates the TSOC-6 surface-mount package, while 'T&R' specifies tape-and-reel packaging. Confirm RoHS compliance status as indicated by the '+' suffix in the manufacturer's part number. Ensure compatibility with existing 1-Wire bus controllers regarding pullup resistor values and timing requirements.

Specialized ICS Selection Notes

Select the DS2401AP+T&R when a compact surface-mount solution is required for device authentication or identification. The TSOC-6 package offers a smaller footprint compared to through-hole alternatives like TO-92. Consider the DS2401A variant if lower pullup resistance values are necessary for high-speed or heavily loaded buses. Verify that the application does not require writable memory, as this device contains read-only ROM.

Specialized ICS Part Context

The DS2401 series serves as an enhanced successor to the DS2400, offering full reverse compatibility while adding multi-drop capabilities. This allows multiple devices to reside on a single 1-Wire net without address conflicts during initialization. The DS2401AP+T&R specifically targets applications needing robust, low-cost identity solutions in space-constrained environments using standard SMT assembly equipment.

Specialized ICS Replacement Considerations

The DS2401P+T&R is a direct functional substitute with identical electrical characteristics and pinout, differing primarily in manufacturing lot or minor revision details. Both belong to the same DS2401 family and maintain compatibility with existing 1-Wire protocols. Verify package dimensions and lead spacing to ensure mechanical interchangeability in the target design.