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Status
Part Number	Status
DS1995	Active: In Production. But some versions of the family are No Longer Available. See Ordering Information.

Data Sheet

FULL DATA SHEET (PDF, 48kB) Download   E-Mail

Description

The DS1995 Memory iButton operates nearly identically to the DS1996. The main differences are: 16 Kbits of memory organized as 64 pages of 32 bytes and a family code of 0A hexadecimal. For further details please refer to the DS1996 data sheet.

This product contains lithium-metal batteries. See applicable regulations for transport requirements for batteries in equipment.

Key Features

16384 bits of read/write nonvolatile memory 256-bit scratchpad ensures integrity of data transfer Overdrive mode boosts communication to 142 kbits per second Memory partitioned into 256-bit pages for packetizing data Data integrity assured with strict read/write protocols Operating temperature range from -40°C to +70°C Over 10 years of data retention

Key Specifications:  iButton Products
Part Number	Overview	Memory Type	Memory Size	Unique Ware	Real Time Clock	Smallest Available Pckg. (mm2)	Price
						max w/pins	See Notes
DS1995	iButton Memory	NV SRAM	16K bits	No	No	301	$5.27 @1k
See All iButton Products (26)

Diagram

Application Notes

Application Note 27: Understanding and Using Cyclic Redundancy Checks with Maxim iButton Products - DS1995 Application Note 74: Reading and Writing 1-Wire® Devices Through Serial Interfaces - DS1995 Application Note 114: 1-Wire File Structure - DS1995 Application Note 126: 1-Wire® Communication Through Software - DS1995 Application Note 148: Guidelines for Reliable Long Line 1-Wire® Networks - DS1995 Application Note 155: 1-Wire® Software Resource Guide Device Description - DS1995 Application Note 159: Software Methods to Achieve Robust 1-Wire® Communication in iButton® Applications - DS1995 Application Note 187: 1-Wire Search Algorithm - DS1995 Application Note 192: Using the DS2480B Serial 1-Wire Line Driver - DS1995 Application Note 244: Advanced 1-Wire Network Driver - DS1995 Application Note 937: Book of iButton® Standards - DS1995 Application Note 1097: White Paper 2: Using the 1-Wire® Public Domain Kit - DS1995 Application Note 1100: White Paper 5: Using 1-Wire APIs for Data Sheet Commands - DS1995 Application Note 3808: What Is an iButton? - DS1995

Reliability Reports

Request Reliability Report for: DS1995

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: 1-2 of 2

DS1995	Notes	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS1995L-F5+				Active		CAN-F5;2 pin;301 mm² Outline Drawing: 21-0266 (PDF) Land Pattern: Not Available Use pkgcode/variation: IB+5BW*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1995L-F5	F5 MicroCan		N/A	No Longer Available	DS1995L-F5+	CAN-F5;2 pin;301 mm² Outline Drawing: 21-0266 (PDF) Land Pattern: Not Available Use pkgcode/variation: IB+5BW*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis

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