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Data Sheet

FULL DATA SHEET (PDF, 68kB) 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.

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	UniqueWare	Real-Time Clock	RoHS Available	Price**
DS1995	iButton Memory	NV SRAM	16k bits	No	No	Yes	$5.27 @ 1k
See All iButton Products (24)

Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Diagram

Application Notes

Application Note 27: Understanding and Using Cyclic Redundancy Checks with Maxim iButton Products - DS1995 Application Note 74: Reading and Writing iButtons via 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 1-Wire Networks - DS1995 Application Note 155: 1-Wire® Software Resource Guide Device Description - DS1995 Application Note 159: Ultra-Reliable 1-Wire Communications - 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

Evaluation Kits

none

Reliability Reports

Request Reliability Report for: DS1995

Software/Models

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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	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS1995L-F5+				CAN;2 pin;0 mm² Dwg: 56-G0CAN-F50A (PDF) Use pkgcode/variation: IB+5BW*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS1995L-F5	F5 MicroCan			CAN;2 pin;0 mm² Dwg: 56-G0CAN-F50A (PDF) Use pkgcode/variation: IB+5BW*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis

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