In Stock ! ADI I/O Controller Interface IC DS2482S-100+T&R

I/O Controller Interface IC Single-Channel 1-Wire Master

Features：

• 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