Maxim Integrated DS2485Q+T, Input Output Controller, 6-Pin TDFN-6

The Maxim Integrated 1-Wire master that performs protocol conversion between the I2C master and any attached 1-Wire slaves. For 1-Wire line driving, 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. The 1-Wire master has selectable active or passive 1-Wire pull-up. Strong pull-up features support 1-Wire power delivery for 1-Wire devices that require this for EEPROMs and cryptographic computations.

Voltage range on any pin relative to GND -0.5V to 4.0V
Maximum current into any pin -20mA to 20mA
Operating temperature range -40°C to +85°C
Junction temperature +150°C
Soldering temperature (reflow) +260°C

Datasheet - DS2485Q+T