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1-Wire 4Kb EEPROM

With a Single Dedicated Contact, Easily Add EEPROM to Cables and Sensors to Store Nonvolatile Calibration Data

Product Details

The DS24B33 is a 4096-bit, 1-Wire® EEPROM organized as 16 memory pages of 256 bits each. Data is written to a 32-byte scratchpad, verified, and then copied to the EEPROM memory. The DS24B33 communicates over a single-conductor 1-Wire bus. The communication follows the standard 1-Wire protocol. Each device has its own unalterable and unique 64-bit registration number that is factory programmed into the chip. The registration number is used to address the device in a multidrop 1-Wire net environment. The DS24B33 is software compatible to the DS2433.

Key Features

  • 4096 Bits of Nonvolatile EEPROM Partitioned Into Sixteen 256-Bit Pages
  • Read and Write Access is Highly Backward-Compatible to the DS2433
  • 256-Bit Scratchpad with Strict Read/Write Protocols Ensures Integrity of Data Transfer
  • Unique, Factory-Programmed, 64-Bit Registration Number Ensures Error-Free Device Selection and Absolute Part Identity
  • Switchpoint Hysteresis to Optimize Performance in the Presence of Noise
  • Communicates to Host at 15.4kbps or 125kbps Using 1-Wire Protocol
  • Low-Cost Through-Hole and SMD Packages
  • Operating Range: +2.8V to +5.25V, -40°C to +85°C
  • IEC 1000-4-2 Level 4 ESD Protection (±8kV Contact, ±15kV Air, Typical) for IO Pin

Applications/Uses

  • Board Identification
  • Medical Sensor Calibration Data Storage
  • Smart Cables
  • Storage of Calibration Constants
  • Storage of Product Revision Status
Parametric specs for Memory (EPROM, EEPROM, ROM, NV SRAM)
Applications Print Cartridge Authentication
Memory Type EEPROM
Memory Size 4K x 1
Bus Type 1-Wire
VSUPPLY (V) (min) 2.8
VSUPPLY (V) (max) 5.25
Package/Pins SFN/2
SOIC (W)/8
TDFN/6
TO92/3
Budgetary
Price (See Notes)
$1.49 @1k
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Technical Docs

Design & Development

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Description

The DS9120 family of socket boards are RJ11-to-socket boards that provide the hardware connectivity necessary to evaluate and operate 1-Wire® products in an easy-to-use PC environment. Additionally, the socket boards can be readily used with the DS9481R USB-to1-Wire adapter to create a 1-Wire PC programmer for 1-Wire EEPROM and one-time programmable (OTP)/EPROM devices.

View Details

Features

  • Fully Compliant with DS9481R USB-to-1-Wire Adapter
  • Convenient On-Board Test Points
  • Jumper Disconnect/Connect Functionality
  • Meets RJ11 1-Wire Interface Standard
  • Include Connections for Various OTP EPROM Programming

Description

The DS9120 family of socket boards are RJ11-to-socket boards that provide the hardware connectivity necessary to evaluate and operate 1-Wire® products in an easy-to-use PC environment. Additionally, the socket boards can be readily used with the DS9481R USB-to1-Wire adapter to create a 1-Wire PC programmer for 1-Wire EEPROM and one-time programmable (OTP)/EPROM devices.

View Details

Features

  • Fully Compliant with DS9481R USB-to-1-Wire Adapter
  • Convenient On-Board Test Points
  • Jumper Disconnect/Connect Functionality
  • Meets RJ11 1-Wire Interface Standard
  • Include Connections for Various OTP EPROM Programming

Description

The DS9120 family of socket boards are RJ11-to-socket boards that provide the hardware connectivity necessary to evaluate and operate 1-Wire® products in an easy-to-use PC environment. Additionally, the socket boards can be readily used with the DS9481R USB-to1-Wire adapter to create a 1-Wire PC programmer for 1-Wire EEPROM and one-time programmable (OTP)/EPROM devices.

View Details

Features

  • Fully Compliant with DS9481R USB-to-1-Wire Adapter
  • Convenient On-Board Test Points
  • Jumper Disconnect/Connect Functionality
  • Meets RJ11 1-Wire Interface Standard
  • Include Connections for Various OTP EPROM Programming

Description

The DS9090EVKIT evaluation system (EV system) consists of a DS9490+ USB-to-1-Wire®/iButton® adapter for PC connectivity, a DS9120P+ socket board with RJ11 cable, and seven different 1-Wire devices. This EV system provides the special hardware and software system to exercise the features of 1-Wire devices with memory or PIO/switches, except 1-Wire EPROM devices. (EPROM devices such as the DS2502 and DS2506 require a different adapter (DS9481R-3C7) to perform an EPROM write. This adapter can be purchased separately.) 1-Wire EPROM devices are available for sampling.

The EV system software consists of the OneWireViewer (a Java® program) that runs under Windows ® OS and comes as part of the 1-Wire drivers installation package.

View Details

Features

  • Easy Setup with USB Adapter
  • Fully Compliant with USB 2.0 Specification
  • Software Runs on Windows 8, Windows 7, WindowsVista®, and Windows XP® OS (32-Bit and 64-Bit Versions)
  • Convenient On-Board Test Points and Dual TO92 Socket
  • Standard RJ11 Connector Interfaces to DS9120 Socket Boards
  • Free Download of 1-Wire Drivers and OneWireViewer Demonstration Software
  • Compatible with Other 1-Wire Devices Purchased Separately

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Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal

Parameters

Parametric specs for Memory (EPROM, EEPROM, ROM, NV SRAM)

Key Features

  • 4096 Bits of Nonvolatile EEPROM Partitioned Into Sixteen 256-Bit Pages
  • Read and Write Access is Highly Backward-Compatible to the DS2433
  • 256-Bit Scratchpad with Strict Read/Write Protocols Ensures Integrity of Data Transfer
  • Unique, Factory-Programmed, 64-Bit Registration Number Ensures Error-Free Device Selection and Absolute Part Identity
  • Switchpoint Hysteresis to Optimize Performance in the Presence of Noise
  • Communicates to Host at 15.4kbps or 125kbps Using 1-Wire Protocol
  • Low-Cost Through-Hole and SMD Packages
  • Operating Range: +2.8V to +5.25V, -40°C to +85°C
  • IEC 1000-4-2 Level 4 ESD Protection (±8kV Contact, ±15kV Air, Typical) for IO Pin

Applications/Uses

  • Board Identification
  • Medical Sensor Calibration Data Storage
  • Smart Cables
  • Storage of Calibration Constants
  • Storage of Product Revision Status

Description

The DS24B33 is a 4096-bit, 1-Wire® EEPROM organized as 16 memory pages of 256 bits each. Data is written to a 32-byte scratchpad, verified, and then copied to the EEPROM memory. The DS24B33 communicates over a single-conductor 1-Wire bus. The communication follows the standard 1-Wire protocol. Each device has its own unalterable and unique 64-bit registration number that is factory programmed into the chip. The registration number is used to address the device in a multidrop 1-Wire net environment. The DS24B33 is software compatible to the DS2433.

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal