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.
The DS2482-100 is a single‑channel I²C‑to‑1‑Wire bridge that provides bidirectional protocol conversion between a host I²C master and downstream 1‑Wire devices. It supports standard (100 kHz) and over‑drive (400 kHz) 1‑Wire speeds, programmable pull‑up options, and an external MOSFET control pin for strong pull‑up applications.
The document details absolute maximum ratings, electrical characteristics, pin descriptions, register maps and configuration options such as active pull‑up, strong pull‑up, presence‑pulse masking and speed selection. Ordering information lists the available SO and WLP packages and RoHS compliance notes.
| Operating Voltage Range (V_EO) | 2.9 V to 5.5 V |
|---|---|
| Maximum Current per Pin | +20 mA |
| Package Options | 8‑Pin SO (150‑mil) and 9‑WLP |
The device operates from 2.9 V up to 5.5 V.
It is offered in an 8‑pin SO (150‑mil) package and a 9‑pin WLP package.
The absolute maximum rating permits up to +20 mA per pin.
The two address inputs allow up to four DS2482‑100 devices to share the same I²C bus.