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Analog Devices Inc./Maxim Integrated DS2411AR+T&R
- Part No.:
- DS2411AR+T&R
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Specialized ICs
- Package:
- TO-236-3, SC-59, SOT-23-3
- Description:
- IC SILICON SERIAL NUMBER SOT23-3
- Quantity:
Unit Price:$0
Ext Price:$0
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- Shipping:
Product Details
DS2411AR+T&R - 1-Wire Silicon Serial Number
Analog Devices / Maxim Integrated DS2411AR+T&R is a factory-programmed 64-bit 1-Wire silicon serial-number device in a three-pin SOT-23 package, cataloged by LCDChip as TO-236-3, SC-59, SOT-23-3. The A version does not require an external VCC connection.
Use the DS2411A electrical limits and SOT-23 pinout; do not transfer the externally powered DS2411R pin-2 function to this exact A ordering code.
Overview
DS2411AR+T&R provides a unique electronic identifier over a minimal 1-Wire connection. Its 64-bit read-only registration number contains an 8-bit family code (01h), a 48-bit unique serial number, and an 8-bit CRC. The exact AR option is the DS2411A SOT23-3 variant: unlike the non-A DS2411R, its pin 2 is not connected internally and it operates without a separate VCC supply.
Key Advantages
The factory-programmed 48-bit serial field helps distinguish boards and modules.
The A option communicates and draws operating energy through the 1-Wire connection and ground.
Several devices may be discovered on a correctly designed shared 1-Wire network.
The three-pin SOT-23 form suits space-constrained identification points.
Feature Summary
64-bit ROM code includes family, serial, and CRC fields.
Supports reset/presence and ROM discovery/read operations.
Standard communication up to 15.4 kbps and overdrive up to 125 kbps are stated for the family.
No external VCC connection is needed; pin 2 has no die connection.
Package & Footprint
The catalog's registered package is TO-236-3, SC-59, SOT-23-3. Analog Devices lists the exact DS2411AR+T&R code in a three-pin SOT23-3; T&R denotes tape-and-reel delivery. Confirm the controlled package drawing and pin-1 orientation before layout.
- Confirm SOT23-3 top-view orientation and pin 1.
- Size the 1-Wire pull-up for the bus voltage and network load.
- Do not route pin 2 as required VCC for this A variant.
The registered SOT-23-3 JPG is absent locally and returns HTTP 404 on the production site. Leave this draft unpublished until a correct image is restored and visually verified.
Pin Functions
The manufacturer DS2411A SOT23-3 pin table assigns:
Bidirectional 1-Wire communication and parasitic-power interface.
No connection to the die for DS2411A; the non-A DS2411 uses this position for VCC.
Ground reference and 1-Wire return.
Confirm board viewing direction and the selected package outline; the A and non-A variants do not share identical pin-2 behavior.
Key Specifications
| Primary function | Factory-programmed silicon serial number |
|---|---|
| ROM length | 64 bits |
| Family code | 8 bits, 01h |
| Unique serial field | 48 bits |
| CRC field | 8 bits |
| Interface | 1-Wire, multidrop-capable |
| DS2411A operating voltage | 3.0 V to 5.25 V on the 1-Wire supply path |
| Standard data rate | Up to 15.4 kbps |
| Overdrive data rate | Up to 125 kbps |
| Standby current | Less than 1 µA under specified conditions |
| Operating temperature | -40 °C to +85 °C |
| Package / delivery | Three-pin SOT23-3, tape-and-reel |
Speed and standby figures are conditional data-sheet statements, not universal system guarantees. Check full electrical and timing tables for the A version.
Replacement Considerations
DS2411AR+U is a manufacturer-listed SOT23-3 A variant with a different supply format; confirm the full order code and procurement conditions. DS2411R+T&R uses the externally powered non-A circuit and pin 2 as VCC, so it is not a pin-behavior-equivalent substitution. DS2411P+ variants use six-pin TSOC and require a different footprint. Compare pull-up voltage, package, lead finish, ROM protocol, and host timing before substitution. No unverified internal product link is added.
Manufacturer Information
Analog Devices publishes the DS2411 Silicon Serial Number with or without VCC Input data sheet, Rev. 4 (April 2022). Its exact ordering table lists DS2411AR+T&R as a three-pin SOT23-3. The pin table distinguishes DS2411A pin 2 (not connected) from DS2411 pin 2 (VCC); the ROM structure, speed modes, operating ranges, and network guidance inform this detail.
Applications
Associate assembly and test records with a persistent device identifier.
Read a module's unique ROM code for inventory or service records.
Enumerate identified peripherals on a suitable multidrop 1-Wire bus.
Use hardware identity as one input in a broader license-management workflow.
Quality & Authenticity
Verify the complete AR+T&R order code, traceable lot, SOT-23 package markings, and read-back 64-bit ROM/CRC. A unique serial number and CRC support identification and data integrity; they do not provide cryptographic proof of genuineness. Physical inventory authenticity requires sourcing and inspection controls.
FAQ
Does the A variant need a separate VCC pin?
No. The manufacturer's pin table marks SOT-23 pin 2 not connected for DS2411A.
Is the 64-bit ID user writable?
No. It is a factory-programmed ROM identifier.
Can this replace DS2411R+T&R directly?
Do not assume that: the non-A part uses pin 2 for VCC and has different voltage requirements.
Is the page ready to publish?
No. The registered production SOT-23-3 JPG returns HTTP 404.
Engineering Notice
Review current DS2411A voltage and timing tables, 1-Wire pull-up selection, reset/presence behavior, SOT23-3 pin orientation, and multidrop signaling. Do not mistake an identifier for a secure authenticator. Restore and visually verify the missing registered package image before formal publication.
DS2411AR+T&R Information
- Specifications
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- -
- Type:
- Silicon Serial Number
- Applications:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
- Grade:
- -
- Qualification:
- -
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