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Maxim > Products > 1-Wire® Devices 
DS2433
4Kb 1-Wire EEPROM


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Data Sheet
FULL DATA SHEET (PDF, 700kB)
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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

    Key Specifications:   Memory (EPROM, EEPROM, ROM, NV SRAM)
    Part Number Memory Type Memory Size Bus Type Real-Time Clock DIP with Internal Battery PowerCap Package Battery Monitor With GPIO Single Piece Module Supply Voltage (min) (V) Supply Voltage (max) (V) Price**
    DS2433  EEPROM 4K x 1 1-Wire No No No No No No 2.8 6 $1.61 @ 1k
    See All Memory (EPROM, EEPROM, ROM, NV SRAM) (69)
    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.

    Application Notes
  		• Application Note 27: Understanding and Using Cyclic Redundancy Checks with Maxim iButton Products - 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 177: Programming 1-Wire EPROM and EEPROM Memory Devices Using a PC - 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 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

    Evaluation Kits
    none

    Design Guides
  		• 1-Wire® Products (PDF)

    Reliability Reports
  		• Reliability Report: DS2433.pdf

    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * 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
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    DS2433X-S#T  
    		FCHIP;6 pin;
    Dwg: 21-0291 (PDF)
    Use pkgcode/variation: BF623#3*
    		-40°C to +85°C See data sheet
    DS2433X#T  
    		FCHIP;6 pin;
    Dwg: 21-0291 (PDF)
    Use pkgcode/variation: BF623#3*
    		-40°C to +85°C See data sheet
    DS2433X  
    		FCHIP;6 pin;
    Dwg: 21-0291 (PDF)
    Use pkgcode/variation: BF623-3*
    		-40°C to +85°C See data sheet
    DS2433X-S  
    		FCHIP;6 pin;
    Dwg: 21-0291 (PDF)
    Use pkgcode/variation: BF623-3*
    		-40°C to +85°C See data sheet
    DS2433+  
    		PR35;3 pin;
    Dwg: 21-0247 (PDF)
    Use pkgcode/variation: D3+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS2433  
    		PR35;3 pin;
    Dwg: 21-0247 (PDF)
    Use pkgcode/variation: D3-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS2433G+T&R  
    		SFN;2 pin;
    Dwg: 21-0390 (PDF)
    Use pkgcode/variation: G266+1*
    		-40°C to +85°C See data sheet
    Materials Analysis
    DS2433S+  
    		SOIC;8 pin;
    Dwg: 21-0262 (PDF)
    Use pkgcode/variation: W8+3*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    DS2433S/T&R  
    		SOIC;8 pin;
    Dwg: 21-0262 (PDF)
    Use pkgcode/variation: W8-3*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS2433S  
    		SOIC;8 pin;
    Dwg: 21-0262 (PDF)
    Use pkgcode/variation: W8-3*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    DS2433S+T&R  
    		SOIC;8 pin;
    Dwg: 21-0262 (PDF)
    Use pkgcode/variation: W8+3*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis

    More Information
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    2008-05-16
    This page last modified: 2008-05-16




             


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