DS2482-100
PRODUCTIONSingle-Channel 1-Wire Master
I²C to 1-Wire Bridge Device that Interfaces Directly to Standard (100kHz max) or Fast (400kHz max) I²C Masters to Perform Bidirectional Protocol Conversion Between the I²C Master and Any Downstream 1-Wire Slave Device
- Part Models
- 4
- 1ku List Price
- Starting From $1.18
Part Details
- Allows Easy Interface Between a I2C Microport and a 1-Wire Slave
- I2C Host Interface Supports 100kHz and 400kHz I2C Communication Speeds
- 1-Wire Master IO with Selectable Active or Passive 1-Wire Pullup
- Provides Reset/Presence, 8-Bit, Single-Bit, and 3-Bit 1-Wire IO Sequences
- Standard and Overdrive 1-Wire Communication Speeds
- Two Address Inputs for I2C Address Assignment
- Minimizes Line Noise Reducing System EMI
- Slew-Controlled 1-Wire Edges
- Supports EEPROMs, Temperature Sensors, or Other 1-Wire Slaves That Have Momentary High Source
Current Modes
- Strong 1-Wire Pullup Provided by an Internal Low-Impedance Signal Path
- PCTLZ Output to Optionally Control an External MOSFET for Stronger Pullup Requirements
- Operating Range: 2.9V to 5.5V, -40°C to +85°C
- 8-Pin (150 mils) SO and 8-Bump WLP Packages
The DS2482-100 is an I2C to 1-Wire® bridge device that interfaces directly to standard (100kHz max) or fast (400kHz max) I2C masters to perform bidirectional protocol conversion between the I2C master and any downstream 1-Wire slave devices. Relative to any attached 1-Wire slave device, the DS2482-100 is a 1-Wire master. Internal factory trimmed timers relieve the system host processor from generating time-critical 1-Wire waveforms, supporting both standard and Overdrive 1-Wire communication speeds. To optimize 1-Wire waveform generation, the DS2482-100 performs slew rate control on rising and falling 1-Wire edges and provides additional programmable features to match drive characteristics to the 1-Wire slave environment. Programmable strong pullup features support 1-Wire power delivery to 1-Wire devices such as EEPROMs and sensors. The DS2482-100 combines these features with an output to control an external MOSFET for enhanced strong pullup application. The I2C slave address assignment is controlled by two binary address inputs, resolving potential conflicts with other I2C slave devices in the system.
Applications
- Cell Phones/PDAs
- Industrial Sensors
- Medical Instruments
- Printers
Documentation
Data Sheet 1
Reliability Data 1
Application Note 1
Design Note 2
Technical Articles 6
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 |
---|---|---|---|
DS2482S-100+ | Small-Outline IC, Narrow (0.15in) | ||
DS2482S-100+T&R | Small-Outline IC, Narrow (0.15in) | ||
DS2482X-100+T | Wafer-Level Package 3x3 Bump, Depopulated | ||
DS2482X-100+U | Wafer-Level Package 3x3 Bump, Depopulated |
Part Models | Product Lifecycle | PCN |
---|---|---|
Oct 30, 2020 - 1702R2 ASSEMBLY |
||
DS2482S-100+ | PRODUCTION | |
DS2482S-100+T&R | PRODUCTION | |
Dec 21, 2016 - 1671A ASSEMBLY |
||
DS2482X-100+T | PRODUCTION | |
DS2482X-100+U | PRODUCTION | |
Jul 19, 2016 - 1594_AMENDED ASSEMBLY |
||
DS2482X-100+T | PRODUCTION | |
DS2482X-100+U | PRODUCTION | |
Dec 8, 2015 - 1594_PRE-PCN WAFER FAB |
||
DS2482X-100+T | PRODUCTION | |
DS2482X-100+U | PRODUCTION |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
Parts | Product Life Cycle | Description |
---|---|---|
1-Wire Interface Products 2 | ||
DS2482-800 | PRODUCTION | 8-Channel 1-Wire Master |
DS2480B | Serial to 1-Wire Line Driver |