Y2K-Compliant Watchdog Real-Time Clocks

Overview

Technical Documents

Ordering Info

Status

Part Number	Status
DS1501	Active: In Production. See Ordering Information for details.
DS1511	Active: In Production. See Ordering Information for details.

Data Sheet

Download	Rev 5	(PDF, 248.6kB)
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Errata DS1501 1501A7.pdf
Errata DS1511 1501A7.pdf
Errata DS1501 1501A6.pdf
Errata DS1511 1501A6.pdf

Ordering Information

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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
DS1501W+			Active		PDIP(W);28 pin;592.6 mm² Outline Drawing:21-0044 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P28+5*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501WE		N/A	No Longer Available	DS1501WE+	TSOP;28 pin;109.8 mm² Outline Drawing:21-0273 (PDF) Land Pattern: 90-0319 (PDF) Use pkgcode/variation: Z28-4*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS1501WE+			Active		TSOP;28 pin;109.8 mm² Outline Drawing:21-0273 (PDF) Land Pattern: 90-0319 (PDF) Use pkgcode/variation: Z28+4*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501WE+T&R			Active		TSOP;28 pin;109.8 mm² Outline Drawing:21-0273 (PDF) Land Pattern: 90-0319 (PDF) Use pkgcode/variation: Z28+4*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501WE/T&R		N/A	No Longer Available	DS1501WE+T&R	TSOP;28 pin;109.8 mm² Outline Drawing:21-0273 (PDF) Land Pattern: 90-0319 (PDF) Use pkgcode/variation: Z28-4*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS1501WE/T&R/C02		N/A	No Longer Available	DS1501WE+	TSOP; Land Pattern: Not Available	0°C to +70°C	See data sheet
DS1501WEN		N/A	No Longer Available	DS1501WEN+	TSOP;28 pin;109.8 mm² Outline Drawing:21-0273 (PDF) Land Pattern: 90-0319 (PDF) Use pkgcode/variation: Z28-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1501WEN+			Active		TSOP;28 pin;109.8 mm² Outline Drawing:21-0273 (PDF) Land Pattern: 90-0319 (PDF) Use pkgcode/variation: Z28+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501WEN+T&R			Active		TSOP;28 pin;109.8 mm² Outline Drawing:21-0273 (PDF) Land Pattern: 90-0319 (PDF) Use pkgcode/variation: Z28+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501WEN/T&R		N/A	No Longer Available	DS1501WEN+T&R	TSOP;28 pin;109.8 mm² Outline Drawing:21-0273 (PDF) Land Pattern: 90-0319 (PDF) Use pkgcode/variation: Z28-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
Part Number	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS1501WN+			Active		PDIP(W);28 pin;592.6 mm² Outline Drawing:21-0044 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P28+5*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501WS		N/A	No Longer Available		SOIC(W);28 pin;235 mm² Outline Drawing:21-0251 (PDF) Land Pattern: 90-0255 (PDF) Use pkgcode/variation: F28-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS1501WS+		N/A	No Longer Available		SOIC(W);28 pin;235 mm² Outline Drawing:21-0251 (PDF) Land Pattern: 90-0255 (PDF) Use pkgcode/variation: F28+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501WS+T&R		N/A	No Longer Available		SOIC(W);28 pin;235 mm² Outline Drawing:21-0251 (PDF) Land Pattern: 90-0255 (PDF) Use pkgcode/variation: F28+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501WS/T&R		N/A	No Longer Available		SOIC; Land Pattern: Not Available	0°C to +70°C	See data sheet
DS1501WSN		N/A	No Longer Available		SOIC(W);28 pin;235 mm² Outline Drawing:21-0251 (PDF) Land Pattern: 90-0255 (PDF) Use pkgcode/variation: F28-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1501WSN+		N/A	No Longer Available		SOIC(W);28 pin;235 mm² Outline Drawing:21-0251 (PDF) Land Pattern: 90-0255 (PDF) Use pkgcode/variation: F28+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501WSN+T&R		N/A	No Longer Available		SOIC(W);28 pin;235 mm² Outline Drawing:21-0251 (PDF) Land Pattern: 90-0255 (PDF) Use pkgcode/variation: F28+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501WSN+T&R-W		N/A	No Longer Available	DS1685SN-5+	SOIC(W);28 pin;235 mm² Outline Drawing:21-0251 (PDF) Land Pattern: 90-0255 (PDF) Use pkgcode/variation: F28+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501WSN+W		N/A	No Longer Available	DS1685S-5+	N.SO; Land Pattern: Not Available	-40°C to +85°C	See data sheet
Part Number	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS1501WSN/T&R		N/A	No Longer Available		SOIC(W);28 pin;235 mm² Outline Drawing:21-0251 (PDF) Land Pattern: 90-0255 (PDF) Use pkgcode/variation: F28-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1501WZ+			Active		SOIC(W);28 pin;192.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28+3*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501WZ+T&R			Active		SOIC(W);28 pin;192.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28+3*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501WZN+			Active		SOIC(W);28 pin;192.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501WZN+T&R			Active		SOIC(W);28 pin;192.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501Y+			Active		PDIP(W);28 pin;592.6 mm² Outline Drawing:21-0044 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P28+5*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501YE		N/A	No Longer Available	DS1501YE+	TSOP;28 pin;109.8 mm² Outline Drawing:21-0273 (PDF) Land Pattern: 90-0319 (PDF) Use pkgcode/variation: Z28-4*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS1501YE+			Active		TSOP;28 pin;109.8 mm² Outline Drawing:21-0273 (PDF) Land Pattern: 90-0319 (PDF) Use pkgcode/variation: Z28+4*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501YE+T&R			Active		TSOP;28 pin;109.8 mm² Outline Drawing:21-0273 (PDF) Land Pattern: 90-0319 (PDF) Use pkgcode/variation: Z28+4*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501YEN		N/A	No Longer Available	DS1501YEN+	TSOP;28 pin;109.8 mm² Outline Drawing:21-0273 (PDF) Land Pattern: 90-0319 (PDF) Use pkgcode/variation: Z28-4*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
Part Number	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS1501YEN+			Active		TSOP;28 pin;109.8 mm² Outline Drawing:21-0273 (PDF) Land Pattern: 90-0319 (PDF) Use pkgcode/variation: Z28+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501YEN+T&R			Active		TSOP;28 pin;109.8 mm² Outline Drawing:21-0273 (PDF) Land Pattern: 90-0319 (PDF) Use pkgcode/variation: Z28+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501YN+			Active		PDIP(W);28 pin;592.6 mm² Outline Drawing:21-0044 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: P28+5*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501YS		N/A	No Longer Available		SOIC(W);28 pin;235 mm² Outline Drawing:21-0251 (PDF) Land Pattern: 90-0255 (PDF) Use pkgcode/variation: F28-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS1501YS+		N/A	No Longer Available		SOIC(W);28 pin;235 mm² Outline Drawing:21-0251 (PDF) Land Pattern: 90-0255 (PDF) Use pkgcode/variation: F28+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501YS+T&R		N/A	No Longer Available		SOIC(W);28 pin;235 mm² Outline Drawing:21-0251 (PDF) Land Pattern: 90-0255 (PDF) Use pkgcode/variation: F28+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501YSN		N/A	No Longer Available		SOIC(W);28 pin;235 mm² Outline Drawing:21-0251 (PDF) Land Pattern: 90-0255 (PDF) Use pkgcode/variation: F28-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS1501YSN+		N/A	No Longer Available		SOIC(W);28 pin;235 mm² Outline Drawing:21-0251 (PDF) Land Pattern: 90-0255 (PDF) Use pkgcode/variation: F28+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501YSN+T&R		N/A	No Longer Available	DS1501YZN+T&R	SOIC(W);28 pin;235 mm² Outline Drawing:21-0251 (PDF) Land Pattern: 90-0255 (PDF) Use pkgcode/variation: F28+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501YZ+			Active		SOIC(W);28 pin;192.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28+3*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
Part Number	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS1501YZ+T&R			Active		SOIC(W);28 pin;192.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28+3*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501YZN+			Active		SOIC(W);28 pin;192.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1501YZN+T&R			Active		SOIC(W);28 pin;192.8 mm² Outline Drawing:21-0042 (PDF) Land Pattern: 90-0109 (PDF) Use pkgcode/variation: W28+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1511W		N/A	No Longer Available	DS1511W+	EDIP;28 pin;625.9 mm² Outline Drawing:21-0241 (PDF) Land Pattern: Not Available Use pkgcode/variation: MDP28-2*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS1511W+			Active		EDIP;28 pin;625.9 mm² Outline Drawing:21-0241 (PDF) Land Pattern: Not Available Use pkgcode/variation: MDP28+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1511Y		N/A	No Longer Available	DS1511Y+	EDIP;28 pin;625.9 mm² Outline Drawing:21-0241 (PDF) Land Pattern: Not Available Use pkgcode/variation: MDP28-2*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS1511Y+			Active		EDIP;28 pin;625.9 mm² Outline Drawing:21-0241 (PDF) Land Pattern: Not Available Use pkgcode/variation: MDP28+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free 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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Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Errata Application Notes Evaluation Kits Product Guides Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Rev 5; 2009-01-19
This page last modified: 2012-02-17