DS28E02
Info: : PRODUCTION
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DS28E02

1-Wire SHA-1 Authenticated 1Kb EEPROM with 1.8V Operation

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Provides Low-Cost, Secure Bidirectional Authentication Over a Single Contact for Low-Power Applications

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 4
1ku List Price
price unavailable
Features
  • 1024 Bits of EEPROM Memory Partitioned Into Four Pages of 256 Bits
  • On-Chip 512-Bit SHA-1 Engine to Compute 160-Bit Message Authentication Codes (MACs) and to Generate Secrets
  • Write Access Requires Knowledge of the Secret and the Capability of Computing and Transmitting a 160-Bit MAC as Authorization
  • User-Programmable Page Write Protection for Page 0, Page 3, or All Four Pages Together
  • User-Programmable OTP EPROM Emulation Mode for Page 1 ("Write to 0")
  • Communicates to Host with a Single Digital Signal at 12.5kbps or 35.7kbps Using 1-Wire Protocol
  • Switchpoint Hysteresis and Filtering to Optimize Communication Performance in the Presence of Noise
  • Reads and Writes Over 1.75V to 3.65V Voltage Range from -20°C to +85°C
  • 6-Lead TSOC and TDFN Packages
Additional Details
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The DS28E02 combines 1024 bits of EEPROM with challenge-and-response authentication security implemented with the FIPS 180-3 Secure Hash Algorithm (SHA-1). The 1024-bit EEPROM array is configured as four pages of 256 bits with a 64-bit scratchpad to perform write operations. All memory pages can be write protected, and one page can be put in EPROM-emulation mode, where bits can only be changed from a 1 to a 0 state. Each DS28E02 has its own guaranteed unique 64-bit ROM registration number that is factory installed into the chip. The DS28E02 communicates over the single-contact 1-Wire® bus. The communication follows the standard 1-Wire protocol with the registration number acting as the node address in the case of a multidevice 1-Wire network.

Applications

  • Medical Consumable Authentication
  • Printer Cartridge Configuration and Monitoring
  • Reference Design License Management
  • Sensor/Accessory Authentication and Calibration
  • System Intellectual Property Protection
Complete documentation is available upon completion of a Non-Disclosure Agreement (NDA). To request an NDA, click here.
Part Models 4
1ku List Price
price unavailable

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
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DS28E02P+T&R
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DS28E02Q+U
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Product Lifecycle

PCN

Jun 20, 2016

- 1612

ASSEMBLY

DS28E02Q+T&R

PRODUCTION

DS28E02Q+U

PRODUCTION

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Part Models

Product Lifecycle

PCN

Jun 20, 2016

- 1612

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ASSEMBLY

DS28E02Q+T&R

PRODUCTION

DS28E02Q+U

PRODUCTION

Software & Part Ecosystem

Software & Part Ecosystem

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Evaluation Kit

Evaluation Kits 4

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DS9481R-3C7

USB-to-1-Wire/iButton Adapter

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DS9481R-3C7

USB-to-1-Wire/iButton Adapter

USB-to-1-Wire/iButton Adapter

Features and Benefits

  • Driver Support for Windows® 11 and Windows 10 Operating Systems
  • Enumerates as a Virtual PC COM Port by Use of the Prolific PL-2303GC USB-to-UART Bridge IC
  • Emulates the DS2480B 1-Wire Line Driving Functionality
  • 1-Wire OTP/EPROM Programming Provided Without the Need of an External Power Supply (12V on OW, 7V on PULSE)
  • 3.3V Read/Write Operation to 1-Wire/iButton Devices
  • RJ11 Interface for Standard Connectivity Accessories such as the DS9120 Socket Adapter
  • Supports Standard and Overdrive 1-Wire Communication
  • Provides Strong Pullup to 3.3V
  • Fully Compliant with USB 2.0 Specification

Product Detail

The DS9481R is a USB-to-1-Wire adapter for easy PC connectivity to 1-Wire devices. The adapter provides an RJ11 connector with the signals to communicate with all 1-Wire and iButton devices that support a 3.3V data I/O level. Additionally, the adapter provides the support and signaling to program 1-Wire/iButton EEPROM and one-time programmable (OTP)/EPROM devices. To provide a total hardware solution, the DS9481R can readily be used with the DS9120 socket adapter to create a 1-Wire PC programmer for 1-Wire peripheral devices (contact factory for more information). The equivalent peripheral hardware solution for the iButton is the DS1402D-DR8.

DS9120P

Socket Boards for Evaluating 1-Wire Devices

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DS9120P

Socket Boards for Evaluating 1-Wire Devices

Socket Boards for Evaluating 1-Wire Devices

Features and Benefits

  • 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

Product Detail

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.

DS9120Q

Socket Boards for Evaluating 1-Wire Devices

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DS9120Q

Socket Boards for Evaluating 1-Wire Devices

Socket Boards for Evaluating 1-Wire Devices

Features and Benefits

  • 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

Product Detail

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.

DS9120

Socket Boards for Evaluating 1-Wire Devices

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DS9120

Socket Boards for Evaluating 1-Wire Devices

Socket Boards for Evaluating 1-Wire Devices

Features and Benefits

  • 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

Product Detail

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.

Tools & Simulations

Tools & Simulations 1

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