DS2401(3) One-Wire File System DS2401(3)

# [NAME](#NAME)

**DS2401** - Silicon Serial Number

[**DS1990A**](#DS1990A)

\- Serial Number iButton

**01** \[.]XXXXXXXXXXXX\[XX][/[

See the file man3/standard\_mini.3so.

]]

# [SYNOPSIS](#SYNOPSIS)

Unique serial number only.

# [FAMILY CODE](#FAMILY_CODE)

*01*

# [SPECIAL PROPERTIES](#SPECIAL_PROPERTIES)

None.

# [STANDARD PROPERTIES](#STANDARD_PROPERTIES)

See the file man3/standard.3so.

# [ALARMS](#ALARMS)

None.

# [DESCRIPTION](#DESCRIPTION)

See the file man3/description.3so.

## [DS2401 DS1990A](#DS2401_DS1990A)

The [**DS2401 (3)**](/man/os/owfs/DS2401.3) and [**DS1990A (3)**](/man/os/owfs/DS1990A.3) are the most basic of 1-wire devices. Their sole property is it's unique address. It can be used for unique identification. Nonetheless, many keylocks, night watchman systems, and tracking systems use this device.

# [ADDRESSING](#ADDRESSING)

See the file man3/addressing.3so.

# [DATASHEET](#DATASHEET)

http://pdfserv.maxim-ic.com/en/ds/DS2401.pdf  
http://pdfserv.maxim-ic.com/en/ds/DS1990A-F3-DS1990A-F5.pdf

# [SEE ALSO](#SEE_ALSO)

See the file man3/seealso.3so.

# [AVAILABILITY](#AVAILABILITY)

http://www.owfs.org

# [AUTHOR](#AUTHOR)

Paul Alfille (paul.alfille@gmail.com)

2003 OWFS Manpage

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Document: DS2411(3) from owfs 3.2.4-r8 (Chainguard OS)
Source: https://github.com/owfs/owfs