Analog Devices Inc./Maxim Integrated DS2411R-C01+T

The DS2411 family supplies a factory-programmed 64-bit registration number through a single 1-Wire I/O. Its ROM contains an 8-bit family code (01h), a unique 48-bit serial number, and an 8-bit CRC. A controller can identify individual devices on a shared 1-Wire network without programming a serial number in the host.

The product listing identifies a 3-pin SOT-23-3 surface-mount package, also catalogued as TO-236-3 / SC-59. Use the manufacturer's SOT23 outline and pin-one orientation for PCB land-pattern verification.

Layout checks

• Confirm the top-view pin-one position.
• Connect pin 2 to the intended VCC rail, not to ground.
• Check the 1-Wire pull-up against bus loading and timing.

The package registry includes SOT-23-3, but its expected local JPG is missing; the image must be supplied and checked before publication.

Top-view SOT23 pin mapping from the Analog Devices DS2411 data sheet:

Verify the exact orderable suffix and package marking with the manufacturer before treating this family pinout as the variant-specific drawing.

These are DS2411 family data-sheet values, not independently qualified limits for the unlisted -C01+T suffix. Do not use absolute-maximum ratings as normal operating limits.

The data sheet lists DS2411R+T&R as a 3-pin SOT23-3 DS2411 ordering option. Confirm the meaning of the -C01 custom suffix, ROM family and serialization requirements before substitution. DS2411AR+T&R has a no-connect supply pin and different supply arrangement; it is not an automatic drop-in replacement. The 6-pin TSOC and flip-chip versions require different footprints. No site-internal alternative link is asserted without an exact database match and engineering review.

This Maxim Integrated design is documented by Analog Devices in the DS2411 data sheet, Rev. 4/22. The distributor identifies DS2411R-C01+T as an obsolete orderable part. The current manufacturer ordering table does not enumerate that exact suffix, so lifecycle, marking and compliance status require written confirmation.

For an obsolete variant, request traceability, original labels, lot/date-code records and a written condition statement before purchase. Inspect top marking and package dimensions against controlled documentation. A readable 1-Wire ROM does not by itself prove authorized origin or the intended custom suffix.

Hold this listing for manual review: the exact suffix is not in the current manufacturer ordering table, a major distributor marks the item obsolete, current authorized-channel stock and tier prices are not confirmed, and the registered SOT-23-3 JPG is absent. Validate exact device identity, source traceability, supply timing, pull-up design and package image before publishing or ordering for production.