Nonvolatile Timekeeping RAM

Ordering Info

Status

Part Number	Status
DS1643	Active: In Production. See Ordering Information for details.
DS1643P	Active: In Production. See Ordering Information for details.

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Filters:	Part Number:		Package:		Temperature:		Tape and Reel	Sample
Showing 6 out of 11 possible devices.

Part Number	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS1643-100		N/A	No Longer Available	DS1643-100+	EDIP;28 pin;629.9 mm² Outline Drawing:21-0245 (PDF) Land Pattern: Not Available Use pkgcode/variation: MDF28-2*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
DS1643-100+			Active		EDIP;28 pin;629.9 mm² Outline Drawing:21-0245 (PDF) Land Pattern: Not Available Use pkgcode/variation: MDF28+2*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1643-70		N/A	No Longer Available	DS1643-85+	MOD; Land Pattern: Not Available	0°C to +70°C	See data sheet
DS1643-70+		N/A	No Longer Available	DS1643-85+	MOD; Land Pattern: Not Available	0°C to +70°C	See data sheet
DS1643-85+			Active		EDIP;28 pin;629.9 mm² Outline Drawing:21-0245 (PDF) Land Pattern: Not Available Use pkgcode/variation: MDF28+2*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1643-C03		N/A	No Longer Available	DS1743-100+	MOD; Land Pattern: Not Available	0°C to +70°C	See data sheet

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.

Overview		Technical Documents		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet 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

Document Ref.: 19-5058 Rev 4; 2010-05-27
This page last modified: 2010-05-27