DS2484
PRODUCTIONSingle-Channel 1-Wire Master with Adjustable Timing and Sleep Mode
Best-in-Class Integrated 1-Wire Line Driver Facilitates Protocol Conversion Between I2C Host and 1-Wire Slave Network
- Part Models
- 4
- 1ku List Price
- Starting From $0.86
Part Details
- 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
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
Documentation
Data Sheet 1
Reliability Data 1
Design Note 3
Technical Articles 5
Product Highlight 1
Product Highlight 1
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 |
|---|---|---|---|
| DS2484Q+T | 8-LFCSP-2X3X0.75 | ||
| DS2484Q+U | 8-LFCSP-2X3X0.75 | ||
| DS2484R+T | Small-Outline Transistor Package | ||
| DS2484R+U | Small-Outline Transistor Package |
| 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 | |
This is the most up-to-date revision of the Data Sheet.
Tools & Simulations
Software Development 2
Evaluation Kits
Evaluation System for the DS2484
Reference Designs
1-Wire Shield
Part Used
Design & Integration Tools
Secure Authentication with ARM Processors