DS2482X-101+T

The DS2482X-101+T from Analog Devices is a versatile I2C-to-1-Wire bridge device designed to facilitate communication between I2C masters and downstream 1-Wire slave devices. It functions as a 1-Wire master, relieving the host processor from generating time-critical waveforms.

This device supports both standard (100kHz max) and fast (400kHz max) I2C communication speeds. It offers selectable active or passive 1-Wire pullup and provides programmable features for optimizing 1-Wire waveform generation, including slew-rate control on edges. The DS2482X-101+T supports standard and overdrive 1-Wire communication speeds and includes an output to control an external MOSFET for enhanced strong pullup applications, aiding in power delivery to devices like EEPROMs and sensors.

With a wide operating voltage range of 2.9V to 5.5V and an operating temperature range of -40°C to 85°C, this controller is suitable for various applications. It features a 9-WLP (1.53x1.53) package, making it compact for integration into space-constrained designs. The device can also enter a power-saving sleep mode when not in use.

Key features include bidirectional protocol conversion, programmable strong pullup, and an I2C slave address assignment controlled by a single binary address input, which helps resolve potential conflicts with other I2C devices on the bus. It minimizes line noise, reducing system EMI, and supports EEPROMs, temperature sensors, and other 1-Wire slaves.