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Part Number	Status
DS2506	This product is Not Recommended for New Designs. See Ordering Information for recommended replacements.

Data Sheet

FULL DATA SHEET (PDF, 900kB) Download   E-Mail

Description

The DS2506 is a 64Kb 1-Wire® EPROM. Like all 1-Wire devices, the DS2506 consists of a factory-lasered 64-bit ROM registration number that includes a unique 48-bit serial number, an 8-bit CRC, and an 8-bit family code (0FH) plus 64Kb of user-programmable EPROM. The power to program and read the DS2506 is derived entirely from the 1-Wire communication line. Data is transferred serially via the 1-Wire protocol which requires only a single data lead and a ground return. The entire device can be programmed and then write protected if desired. Alternatively, the part may be programmed multiple times with new data being appended to, but not overwriting, existing data with each subsequent programming of the device. Note: Individual bits can be changed only from a logical 1 to a logical 0, never from a logical 0 to a logical 1.

Key Features

65,536 bits electrically programmable read only memory (EPROM) Unique, factory-lasered and tested 64-bit registration number assures absolute traceability because no two parts are alike Built-in multidrop controller ensures compatibility with other 1-Wire products EPROM partitioned into 256-bit pages for randomly accessing packetized data records Each memory page can be permanently write-protected to prevent tampering Reduces control, address, data, power, and programming signals to a single data pin Directly connects to a single port pin of a microprocessor and communicates at up to 16.3kbps Overdrive mode boosts communication speed to 142kbps Low-cost PR35 or 8-pin SO surface-mount package Reads over a wide voltage range of 2.8V to 6.0V from -40°C to +85°C; programs at 11.5V to 12.0V from -40°C to +50°C

Application Notes

Application Note 27: Understanding and Using Cyclic Redundancy Checks with Maxim iButton Products - DS2506 Application Note 74: Reading and Writing 1-Wire® Devices Through Serial Interfaces - DS2506 Application Note 155: 1-Wire® Software Resource Guide Device Description - DS2506 Application Note 178: Printed Circuit Board Identification Using 1-Wire® Products - DS2506 Application Note 187: 1-Wire Search Algorithm - DS2506 Application Note 192: Using the DS2480B Serial 1-Wire Line Driver - DS2506 Application Note 244: Advanced 1-Wire Network Driver - DS2506 Application Note 1097: White Paper 2: Using the 1-Wire® Public Domain Kit - DS2506 Application Note 1100: White Paper 5: Using 1-Wire APIs for Data Sheet Commands - DS2506 Application Note 2965: 1-Wire® Master Device Configuration - DS2506

Design Guides

1-Wire® Products (PDF)

Reliability Reports

Reliability Report: DS2506.pdf

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: 1-4 of 4

DS2506	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS2506			NRND		PR35;3 pin;15.9 mm² Outline Drawing: 21-0247 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: D3-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS2506+			NRND		PR35;3 pin;15.9 mm² Outline Drawing: 21-0247 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: D3+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS2506S+T&R		N/A	No Longer Available	DS2506S+	SOIC (W);8 pin;44.1 mm² Outline Drawing: 21-0262 (PDF) Land Pattern: 90-0258 (PDF) Use pkgcode/variation: W8+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS2506S+			NRND		SOIC (W);8 pin;44.1 mm² Outline Drawing: 21-0262 (PDF) Land Pattern: 90-0258 (PDF) Use pkgcode/variation: W8+4*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

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