STMicroelectronics STEVAL-IOD04KT1 industrial sensor kit

Click2Contact

Featuring a slim, 45.8 x 8.3 mm main board, the STMicroelectronics STEVAL-IOD04KT1 industrial sensor kit is designed to simplify the development of compact IO-Link (IEC 61131-9) sensors for fieldbus-independent point-to-point bidirectional communication.

The main board integrates an STM32G0 microcontroller with ST’s L6364W IO-Link transceiver, IIS2MDC 3-axis digital output magnetometer and ISM330DHCX iNEMO inertial module with machine-learning core. The compact dimensions, permitted by the tiny chip-scale package sizes of the L6364W in 2.5 x 2.5 mm CSP19 and the STM32G0 in 2.3 x 2.5 mm WLCSP25, allow for a small sensor enclosure. Fitted with a 4-pole M8 industrial connector, the board connects to any IO-Link main controller that supports IO-Link 1.1. A 10-pin expansion connector allows adding extra sensing modalities.

The companion STM32Cube software pack, STSW-IOD04K, provides the IO-Link Device Description (IODD) file, ST-proprietary IO-Link demo-stack and routines for managing the L6364W and MEMS sensors. The software, which allows hot-plug activation, contains libraries that assist development of various types of sensors, and is architected for easy integration with additional X-CUBE software to further expand the sensor’s functionality.

By handling IO-Link communication, the L6364W transceiver eases the STM32G0’s workload. The IC implements an IO-Link compliant electrical interface and digital features including wake-up recognition, a 15 B data buffer and quartz-free IO-Link clock extraction. Surge-pulse protection up to ±2.5 kV, ESD protection and reverse-polarity protection are all on-chip. With 3.3 and 5 V LDOs on-chip and a digitally configurable step-down DC/DC converter, the L6364W can source up to 50 mA load current and helps developers meet the efficiency and EMC requirements of their application.

For more information: www.st.com/transceiver-iolink.html.