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Status
Part Number	Status
DS2433	Active: In Production. But some versions of the family are No Longer Available. See Ordering Information.

Data Sheet

FULL DATA SHEET (PDF, 568kB) Download   E-Mail

Description

The DS2433 4Kb 1-Wire® EEPROM identifies and stores relevant information about the product to which it is associated. This lot or product specific information can be accessed with minimal interface, for example a single port pin of a microcontroller. The DS2433 consists of a factory-lasered registration number that includes a unique 48-bit serial number, an 8-bit CRC, and an 8-bit Family Code (23h) plus 4096 bits of user-programmable EEPROM. The power to read and write the DS2433 is derived entirely from the 1-Wire communication line. The memory is organized as sixteen pages of 256 bits each. The scratchpad is an additional page that acts as a buffer when writing to memory. Data is first written to the scratchpad where it may be read back for verification. A copy scratchpad command will then transfer the data to memory. This process insures data integrity when modifying the memory. The 64-bit registration number provides a guaranteed unique identity which allows for absolute traceability and acts as node address if multiple DS2433s are connected in parallel to form a local network. Data is transferred serially via the 1-Wire protocol which requires only a single data lead and a ground return. The PR-35 and SO packages provide a compact enclosure that allows standard assembly equipment to handle the device easily for attachment to printed circuit boards or wiring. Typical applications include storage of calibration constants, board identification and product revision status.

Key Features		Applications/Uses
4096 Bits Electrically Erasable Programmable Read-Only Memory (EEPROM) Unique, Factory-Lasered and Tested 64-Bit Registration Number (8-Bit Family Code + 48-Bit Serial Number + 8-Bit CRC Tester) Assures Absolute Identity Because No Two Parts Are Alike Built-In Multidrop Controller Ensures Compatibility with Other MicroLAN Products Memory Partitioned Into Sixteen 256-Bit Pages for Packetizing Data 256-Bit Scratchpad with Strict Read/Write Protocols Ensures Integrity of Data Transfer Reduces Control, Address, Data, and Power 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 8-Bit Family Code Specifies DS2433 Communication Requirements to Reader Presence Detector Acknowledges When Reader First Applies Voltage Low-Cost PR-35, SFN, Flip Chip, or 8-Pin SO Surface-Mount Packages Reads and Writes Over a Wide Voltage Range of 2.8V to 6.0V from -40°C to +85°C		Device Authentication IEEE 1451.4 Sensor TEDS Ink/Toner Cartridges Medical Sensors PCB Identification Self-Configuration of Central Office Switches, Wireless Base Stations, PBXs, or other Modular-Based Rack Systems

Diagram

Block Diagram

Application Notes

Application Note 27: Understanding and Using Cyclic Redundancy Checks with Maxim iButton Products - DS2433 Application Note 74: Reading and Writing 1-Wire® Devices Through Serial Interfaces - DS2433 Application Note 126: 1-Wire® Communication Through Software - DS2433 Application Note 148: Guidelines for Reliable Long Line 1-Wire® Networks - DS2433 Application Note 155: 1-Wire® Software Resource Guide Device Description - DS2433 Application Note 178: Printed Circuit Board Identification Using 1-Wire® Products - DS2433 Application Note 187: 1-Wire Search Algorithm - DS2433 Application Note 192: Using the DS2480B Serial 1-Wire Line Driver - DS2433 Application Note 244: Advanced 1-Wire Network Driver - DS2433 Application Note 1097: White Paper 2: Using the 1-Wire® Public Domain Kit - DS2433 Application Note 1100: White Paper 5: Using 1-Wire APIs for Data Sheet Commands - DS2433 Application Note 2965: 1-Wire® Master Device Configuration - DS2433 Application Note 3377: Maxim Wafer-Level Package Assembly Guide - DS2433 Application Note 3989: Add Control, Memory, Security, and Mixed-Signal Functions with a Single Contact - DS2433 Application Note 4002: Understanding Flip-Chip and Chip-Scale Package Technologies and Their Applications - DS2433 Application Note 4255: How to Power the Extended Features of 1-Wire® Devices - DS2433

Design Guides

1-Wire® Products (PDF)

Reliability Reports

Reliability Report: DS2433.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: 1-11 of 11

DS2433	Free Sample	Buy	Status	Recommended Replacement	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
DS2433X-S#T			Active		FCHIP;6 pin;7 mm² Outline Drawing: 21-0291 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: BF623#3*	-40°C to +85°C	RoHS/Lead-Free: RoHS Qualified Materials Analysis
DS2433X		N/A	No Longer Available	DS2433	FCHIP;6 pin;7 mm² Outline Drawing: 21-0291 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: BF623-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS2433X#T		N/A	No Longer Available	DS2433	FCHIP;6 pin;7 mm² Outline Drawing: 21-0291 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: BF623#3*	-40°C to +85°C	RoHS/Lead-Free: RoHS Qualified Materials Analysis
DS2433X-S		N/A	No Longer Available	DS2433	FCHIP;6 pin;7 mm² Outline Drawing: 21-0291 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: BF623-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS2433			Active		PR35;3 pin;16 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
DS2433+			Active		PR35;3 pin;16 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
DS2433G+T&R			Active		SFN;2 pin;0 mm² Outline Drawing: 21-0390 (PDF) Land Pattern: Not Applicable Use pkgcode/variation: G266N+1*	-40°C to +85°C	See data sheet
DS2433S			Active		SOIC (W);8 pin;44 mm² Land Pattern: Not Available Use pkgcode/variation: W8-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS2433S/T&R			Active		SOIC (W);8 pin;44 mm² Land Pattern: Not Available Use pkgcode/variation: W8-3*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
DS2433S+T&R			Active		SOIC (W);8 pin;44 mm² Land Pattern: Not Available Use pkgcode/variation: W8+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
DS2433S+			Active		SOIC (W);8 pin;44 mm² Land Pattern: Not Available Use pkgcode/variation: W8+3*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

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