General Description

The DS2482-101 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 anyattached 1-Wire slave device, the DS2482-101 is a 1-Wire master.

Features

♦ 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

♦ Slew-Controlled 1-Wire Edges

♦ Strong 1-Wire Pullup Provided by an Internal Low Impedance Signal Path

♦ PCTLZ Output to Optionally Control an External MOSFET for Stronger Pullup Requirements

♦ Supports Power-Saving Sleep Mode

♦ One Address Input for I2C Address Assignment

♦ Operating Range: 2.9V to 5.5V, -40°C to +85°C

♦ 9-Bump WLP Package