DS2484
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DS2484

Single-Channel 1-Wire Master with Adjustable Timing and Sleep Mode

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Best-in-Class Integrated 1-Wire Line Driver Facilitates Protocol Conversion Between I2C Host and 1-Wire Slave Network

Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 4
1ku List Price Starting From $0.86
Features
  • I2C Host Interface Supports 100kHz and 400kHz I2C Communication Speeds
  • Standard and Overdrive 1-Wire Communication Speeds
  • Adjustable 1-Wire Timing for tRSTL, tMSP, tW0L, and tREC0
  • 1-Wire Port Can Be Powered Down Under Software Control
  • Supports Power-Saving Sleep Mode (SLPZ Pin), Where the 1-Wire Port is in High Impedance
  • I2C Operating Voltages: 1.8V ±5%, 3.3V ±10%, and 5.0V +5/-10%
  • Built-In Level Translator: 1-Wire Operating Voltage from 1.8V -5% to 5.0V +5%, Independent of I2C Voltage
  • Built-In ESD Protection Level of ±8kV Human Body Model (HBM) Contact Discharge on IO Pin
  • -40°C to +85°C Operating Temperature Range
  • 8-Pin TDFN and 6-Pin SOT23 Packages
Additional Details
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The DS2484 is an I2C-to-1-Wire® bridge device that interfaces directly to standard (100kHz max) or fast (400kHz max) I2C masters to perform protocol conversion between the I2C master and any downstream 1-Wire slave devices. Relative to any attached 1-Wire slave device, the DS2484 is a 1-Wire master. Internal, user-adjustable timers relieve the system host processor from generating time-critical 1-Wire waveforms, supporting both standard and overdrive 1-Wire communication speeds. In addition, the 1-Wire bus can be powered down under software control. The dual-voltage operation allows different operating voltages on the I2C and 1-Wire side. Strong pullup features support 1-Wire power delivery to 1-Wire devices such as EEPROMs and sensors. When not in use, the DS2484 can be put in sleep mode where power consumption is minimal.

Applications

  • Cell Phones
  • Industrial Sensors
  • Medical Instruments
  • Printers
Part Models 4
1ku List Price Starting From $0.86

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
DS2484Q+T
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DS2484Q+U
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DS2484R+T
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DS2484R+U
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Product Lifecycle

PCN

Nov 1, 2021

- 2209

ASSEMBLY

DS2484R+T

PRODUCTION

DS2484R+U

PRODUCTION

Feb 5, 2015

- 1370_CANCELLATION

ASSEMBLY

DS2484R+T

PRODUCTION

Filter by Model

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Part Models

Product Lifecycle

PCN

Nov 1, 2021

- 2209

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ASSEMBLY

DS2484R+T

PRODUCTION

DS2484R+U

PRODUCTION

Feb 5, 2015

- 1370_CANCELLATION

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ASSEMBLY

DS2484R+T

PRODUCTION

Evaluation Kit

Evaluation Kits 1

DS2484EVKIT

Evaluation System for the DS2484

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DS2484EVKIT

Evaluation System for the DS2484

Evaluation System for the DS2484

Features and Benefits

  • I2C Host Interface Supports 100kHz and 400kHz
  • I2C Communication Speeds
  • I2C Operating Voltages: 1.8V ±5% and 3.3V ±5%
  • 1-Wire Operating Voltage: 1.8V ±5% and 3.3V ±5%
  • EV Kit Contains a Mounted 6-Pin SOT23 DS2484R+T IC
  • Convenient On-Board Test Points and TO-92 Socket
  • Standard RJ11 Connector Interfaces to DS9120 Socket Boards
  • Downloadable Evaluation Software

Product Detail

The DS2484 evaluation system (EV system) consists of a DS2484 evaluation kit (EV kit) and a DS9400 USB-to-I2C adapter. The DS2484 is an I2C-to-1-Wire® bridge device that performs protocol conversion from an I2C master to any attached 1-Wire slave devices. Relative to any attached 1-Wire slave device, the DS2484 is a 1-Wire master. The evaluation software runs under a Windows® 7, Windows 8, or Windows XP® operating system (OS), providing a handy user interface to exercise the features of the DS2484.
Order the DS2484EVKIT# for the complete EV system to evaluate the DS2484 using a PC. Evaluation software for the EV system is also available on our website at: www.maximintegrated.com/evkit.

Applications

  • Cell Phones
  • Industrial Sensors
  • Medical Instruments
  • Printers
Reference Designs

Reference Designs 2

MAXREFDES132

1-Wire Shield

MAXREFDES9003

Secure Authentication with ARM Processors

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MAXREFDES9003

Secure Authentication with ARM Processors

Secure Authentication with ARM Processors

Features and Benefits

  • ECDSA P256 public-key authentication protected by ChipDNA technology.
  • DS28E38 operates with a single-contact 1-Wire interface, requires no device-level firmware development, and simplifies key management.
  • Intellectual property and products are protected by a solution immune to invasive/physical attacks.

Application Benefits

  • Designed for Arm processors in bare-metal or OS environments.
  • Includes project for Eclipse, GCC, and OpenOCD toolchain.
  • Out-of-the-box support for the MAX32625MBED evaluation board.
  • Supports Arm Mbed Enabled devices.
  • Modular design enables rapid porting and integration.
  • ISO C++98-compatible source code for best compiler portability.
View Detailed Reference Design external link

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