USB to 1-Wire Bridge Chip

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Status

Part Number	Status	Explanation
DS2490	This product is Not Recommended for New Designs. Some versions may be No Longer Available or being discontinued and subject to Last Time Buy, after which new orders can not be placed.	The DS2490 remains available but is not recommended for new designs. The DS2480B and DS2482S-100 alternatively provide either UART/RS-232 or I²C to 1-Wire interface solutions.

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Tape and Reel

Sample

Part Number	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS2490S		N/A	No Longer Available	DS2490S+	SOIC(W);24 pin;164.3 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0182 (PDF) Use pkgcode/variation: W24-4*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS2490S+			NRND	DS2480B DS2482S-100	SOIC(W);24 pin;164.3 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0182 (PDF) Use pkgcode/variation: W24+4*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS2490S+T&R			NRND	DS2480B DS2482S-100	SOIC(W);24 pin;164.3 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0182 (PDF) Use pkgcode/variation: W24+4*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS2490X/T&R		N/A	No Longer Available		BUMP; Land Pattern: Not Available	0°C to +70°C	See data sheet
DS2490Y		N/A	No Longer Available	DS2490S+T&R	SOIC(W);24 pin;164.3 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0182 (PDF) Use pkgcode/variation: W24-4*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis

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; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product 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.

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Document Ref.: 19-4993 Rev 4; 2009-11-04
This page last modified: 2009-11-04