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Status
Part Number	Status	Replacement	Explanation
DS2405	This product is No Longer Available. See Ordering Information for recommended replacements.	DS2413	The DS2405 is no longer available. The 1-Wire DS2413 with 2-CH GPIO functionality is recommended as a replacement.

Data Sheet

FULL DATA SHEET (PDF, 436kB) Download   E-Mail

Description

The DS2405 Addressable Switch is an open drain N-channel transistor that can be turned on or off by matching the 64-bit factory-lasered registration number within each part. The 64-bit number consists of an 8-bit family code, a unique 48-bit serial number, and an 8-bit cyclic redundancy check. Communication with the DS2405 follows the standard Dallas Semiconductor 1-Wire protocol and can be accomplished with a single port pin of a microcontroller. Multiple DS2405 devices can reside on a common 1-Wire bus creating a MicroLAN. The network controller circuitry is embedded within the chip including a search algorithm to determine the identity of each DS2405 on the network. The open drain output (PIO pin) for each DS2405 on the MicroLan can be independently toggled on or off whether there is one or many devices sharing the same 1-Wire bus. The logic level of the PIO pin for each device on the MicroLan can also be individually sensed and reported to the bus master.

An evaluation kit is available:  DS9090K  

Key Features

Open-drain PIO pin is controlled by matching 64-bit, laser-engraved registration number associated with each device Logic level of open drain output can be determined over 1-Wire® bus for closed-loop control PIO pin sink capability is greater than 4mA at 0.4V Multiple DS2405s can be identified on a common 1-Wire bus and be turned on or off independent of other devices on the bus Unique, factory-lasered and tested 64-bit registration number (8-bit family code +48-bit serial number +8-bit CRC tester) assures absolute identity because no two parts are alike Built-in multidrop controller ensures compatibility with other MicroLAN products Reduces control, address, data, and power to a single data pin Directly connects to a single port pin of a microprocessor and communicates at up to 16.3kbits/s 8-bit family code specifies DS2405 communications requirements to reader 8-bit cyclic redundancy check ensures error-free selection Zero standby power required Low cost TO-92, SOT-223, or 6-pin TSOC surface mount package 1-Wire communication operates over a wide voltage range of 2.8V to 6.0V from -40°C to +85°C

Application Notes

Application Note 27: Understanding and Using Cyclic Redundancy Checks with Maxim iButton Products - DS2405 Application Note 74: Reading and Writing 1-Wire® Devices Through Serial Interfaces - DS2405 Application Note 155: 1-Wire® Software Resource Guide Device Description - DS2405 Application Note 187: 1-Wire Search Algorithm - DS2405 Application Note 192: Using the DS2480B Serial 1-Wire Line Driver - DS2405 Application Note 244: Advanced 1-Wire Network Driver - DS2405

Evaluation Kits

DS9090K

Design Guides

1-Wire® Products (PDF)

Reliability Reports

Reliability Report: DS2405.pdf

Software/Models

none

Ordering Information

Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-15 of 15

DS2405	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS2405AR-100-550/T		N/A	No Longer Available	DS2413	Land Pattern: Not Available	-40°C to +85°C	See data sheet
DS2405Z/T&R		N/A	No Longer Available	DS2413	SOT-223;3 pin;48.9 mm² Outline Drawing: 21-0264 (PDF) Land Pattern: Not Available Use pkgcode/variation: K3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS2405Z		N/A	No Longer Available	DS2413	SOT-223;3 pin;48.9 mm² Outline Drawing: 21-0264 (PDF) Land Pattern: Not Available Use pkgcode/variation: K3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS2405Z+		N/A	No Longer Available	DS2413	SOT-223;3 pin;48.9 mm² Outline Drawing: 21-0264 (PDF) Land Pattern: Not Available Use pkgcode/variation: K3+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS2405Z+T&R		N/A	No Longer Available	DS2413	SOT-223;3 pin;48.9 mm² Outline Drawing: 21-0264 (PDF) Land Pattern: Not Available Use pkgcode/variation: K3+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS2405-037-01		N/A	No Longer Available	DS2413	Land Pattern: Not Available	-40°C to +85°C	See data sheet
DS2405-037-01+		N/A	No Longer Available	DS2413	Land Pattern: Not Available	-40°C to +85°C	See data sheet
DS2405		N/A	No Longer Available	DS2413 The DS2405 is no longer available. The 1-Wire DS2413 with 2-CH GPIO functionality is recommended as a replacement.	TO92;3 pin;19.5 mm² Outline Drawing: 21-0248 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: Q3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS2405/T&R		N/A	No Longer Available	DS2413	TO92;3 pin;27.6 mm² Outline Drawing: 21-0250 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: Q3-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS2405+T&R		N/A	No Longer Available	DS2413	TO92;3 pin;27.6 mm² Outline Drawing: 21-0250 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: Q3+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS2405+		N/A	No Longer Available	DS2413	TO92;3 pin;19.5 mm² Outline Drawing: 21-0248 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: Q3+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS2405P		N/A	No Longer Available	DS2413	TSOC;6 pin;17.8 mm² Outline Drawing: 21-0382 (PDF) Land Pattern: 90-0321 (PDF) Use pkgcode/variation: D6-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS2405P+T&R		N/A	No Longer Available	DS2413	TSOC;6 pin;17.8 mm² Outline Drawing: 21-0382 (PDF) Land Pattern: 90-0321 (PDF) Use pkgcode/variation: D6+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS2405P/T&R		N/A	No Longer Available	DS2413	TSOC;6 pin;17.8 mm² Outline Drawing: 21-0382 (PDF) Land Pattern: 90-0321 (PDF) Use pkgcode/variation: D6-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS2405P+		N/A	No Longer Available	DS2413	TSOC;6 pin;17.8 mm² Outline Drawing: 21-0382 (PDF) Land Pattern: 90-0321 (PDF) Use pkgcode/variation: D6+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

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