By leveraging Maxim Integrated's 1-Wire protocol to interface with I2CandSPI-compatible sensors, the DS28E18 reduces complexity by connecting devices using only two wires compared to competing solutions that require four wires for I2Corsix for SPI.
Today, most designers use serial interfaces to connect remote sensors in industrial and remote monitoring applications. However, the most popular protocols are expensive and complex because they require up to five external switch extenders to reach devices at distances of up to 100 meters. Furthermore, some of the interfaces currently in widespread use require six wires to connect multiple extended sensors to a host microcontroller.
The DS28E18 enables power and communications over a single cable, utilizing Maxim Integrated's 1-Wire protocol to connect to I²CorSPI peripheral devices over 100 meters away with just two wires. This solution eliminates up to five extender and switch ICs, reducing connection costs and software complexity. Furthermore, only one programmable I/O port on the host microcontroller is needed to operate a network with 10 to 20 nodes.
Key advantages
High integration: extends connections up to 100 meters and eliminates up to five extender and switch ICs; eliminates the requirement for an external power supply
Lower cost: enables standalone operation with only two patch cables, eliminating up to four cables for standalone operation
Reduced complexity: converts the 1-Wire protocol into I2C and SPI master interfaces to reduce both the physical design and the host microcontroller software complexity compared to comparable configurations.
