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
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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
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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
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Search
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Support
Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.
Visit the ADI Support Page
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DS2484
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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
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| DS2484Q+T |
8-LFCSP-2X3X0.75
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| DS2484Q+U |
8-LFCSP-2X3X0.75
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| DS2484R+T |
Small-Outline Transistor Package
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| DS2484R+U |
Small-Outline Transistor Package
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- DS2484Q+T
- Pin/Package Drawing
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8-LFCSP-2X3X0.75
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HTML
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HTML
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- CAD Symbols, Footprints, and 3D Models
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Ultra Librarian
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SamacSys
- DS2484Q+U
- Pin/Package Drawing
-
8-LFCSP-2X3X0.75
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- DS2484R+T
- Pin/Package Drawing
-
Small-Outline Transistor Package
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- DS2484R+U
- Pin/Package Drawing
-
Small-Outline Transistor Package
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
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SamacSys
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Part Models
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
Part Models
Product Lifecycle
PCN
Nov 1, 2021
- 2209
ASSEMBLY
Feb 5, 2015
- 1370_CANCELLATION
ASSEMBLY
Evaluation Kits 1
DS2484EVKIT
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
Applications
- Cell Phones
- Industrial Sensors
- Medical Instruments
- Printers
Evaluation Kits1
Tools & Simulations 1
Software Development 2
Reference Designs 2
MAXREFDES132
1-Wire Shield
MAXREFDES9003
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.
