1-Wire is a registered trademark of Dallas Semiconductor.

1 of 11

052003

FEATURES

§ Unique, Factory-Lasered and Tested 64-Bit

Registration Number (8-Bit Family Code

Plus 48-Bit Serial Number Plus 8-Bit CRC

Tester); Guaranteed No Two Parts Alike

§ Standby Current <1µA

§ Built-In Multidrop Controller Enables

Multiple DS2411s to Reside on a Common

§ Multidrop Compatible with Other 1-Wire

Products

§ 8-Bit Family Code Identifies Device as

DS2411 to the 1-Wire Master

§ Low-Cost TSOC, SOT23-3, and Flip-Chip

Surface-Mount Packages

§ Directly Connects to a Single-Port Pin of a

Microprocessor and Communicates at up to

15.4kbps

§ Overdrive Mode Boosts Communication

Speed to 125kbps

§ Operating Range: 1.5V to 5.25V, -40°C to

+85°C

ORDERING INFORMATION

PART

TEMP RANGE

PACKAGE

DS2411R/

T&R

-40

°C to +85°C

SOT23-3,

Tape-and-Reel

DS2411P

-40

°C to +85°C TSOC

DS2411P/

T&R

-40

°C to +85°C

TSOC,

Tape-and-Reel

DS2411X

-40

°C to +85°C

Flip Chip,

Tape-and-Reel

PIN CONFIGURATION

1

2

3

SOT23-3, Top View

TSOC, Top View

1

2

3

6

5

4

AB

1

2

Flip Chip, Top view, bumps

not visible

PIN DESCRIPTION

PIN

NAME

SOT23

TSOC

FLIP

CHIP

I/O

1

2

A1

26

B2

GND

3

1

B1

N.C.

—

3

A2

N.C.

—

4

—

N.C.

—

5

—

DESCRIPTION

The DS2411 silicon serial number is a low-cost, electronic registration number with external power

supply. It provides an absolutely unique identity that can be determined with a minimal electronic

interface (typically, a single port pin of a microcontroller). The DS2411’s registration number is a

factory-lasered, 64-bit ROM that includes a unique 48-bit serial number, an 8-bit CRC, and an 8-bit

family code (01h). Data is transferred serially through the Dallas Semiconductor’s 1-Wire protocol. The

external power supply is required, extending the operating voltage range of the device below typical

1-Wire devices.

DS2411

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