Maxim Integrated DS2482S-100+ I2C-to-1-Wire Bridge

The DS2482S-100+ is a sophisticated integrated circuit from Maxim Integrated that provides a seamless interface between an I2C serial bus and a 1-Wire bus. This device simplifies the design of 1-Wire applications by managing all the timing and protocol requirements for interfacing with 1-Wire devices through a simple I2C command set.

With the DS2482S-100+, engineers can connect multiple 1-Wire devices, such as temperature sensors, serial number chips, or other specialized components that use the Dallas 1-Wire protocol, to microcontrollers that have an I2C interface. This is particularly advantageous in complex systems where the microcontroller has limited GPIOs or where 1-Wire communication needs to be integrated with other I2C-based sensors and peripherals.

The device comes in a compact SOIC-8 package, making it suitable for space-constrained applications. It operates over a wide voltage range of 2.9V to 5.5V and features an active-low reset input for easy system integration. The DS2482S-100+ supports standard and fast I2C communication speeds, providing flexibility in system design.

Key features of the DS2482S-100+ include:

• Single-chip, I2C-to-1-Wire bridge with a compact SOIC-8 footprint.
• Support for both standard and fast I2C communication speeds.
• Strong pullup to V<sub>DD for powering 1-Wire devices such as EEPROMs and sensors.
• Overdrive speed for faster 1-Wire communication.
• Built-in 1-Wire master with programmable timing to relieve the host microcontroller.
• Wide operating voltage range of 2.9V to 5.5V, suitable for various applications.
• Easy system integration with an active-low reset input.

The DS2482S-100+ is ideal for applications that require remote sensors or long data lines, where the robust 1-Wire protocol is necessary. It is commonly used in environmental monitoring, HVAC systems, industrial control, and any system where an I2C bus needs to interface with 1-Wire devices.

Overall, the Maxim Integrated DS2482S-100+ streamlines the development of 1-Wire applications by providing a reliable, high-performance bridge between I2C and 1-Wire protocols, all within a small form factor.