The CM3120 is an IO-Link master physical layer dedicated to the industrial market. It includes two fully-featured IO-Link channels, which can work in three different operation modes. This circuit integrates an IO-Link frame handler fully compliant with the IO-Link v1.1 specification, and which implements most of the IO-Link communication tasks. The frame handler significantly decreases load of the master microcontroller. The CM3120 also provides several protection and monitoring mechanisms such as overcurrent, overvoltage, and overtemperature.

Features
•Two IO-Link channels with three different operation modes (SIO, UART, and frame handler)
•Protection mechanisms (overcurrent, overtemperature, overvoltage)
•Configurable through a SPI interface
•Operating voltage range from 8.0 V to 32 V
•Suitable for 2/4/8/16 port-applications
•Can operate as a Master or Device
•Two integrated LED drivers
•Integrated hardware frame handler (supports all IO-link v1.1 frames and COM1, COM2, and COM3 baud rates)
•Integrated NMOS gate drivers to control current to the C/Q and L+ lines


Applications
•Factory automation
•Fieldbus gateways
•Programmable logic controllers
•Process controllers