RF module supports multiple LPWAN standards

RF module supports multiple LPWAN standards

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By Christoph Hammerschmidt

The ML7404 is claimed to be the world’s first wireless communication IC with LPWA dual-mode functionality. It supports both the Sigfox standard (subscription-based LPWA technology in the unlicensed sub-gigahertz band), which is widespread in more than 30 countries and is becoming increasingly popular in metropolitan areas, and the international protocol IEEE 802.15.4K, which is said to be extremely resistant to interference and offers the ability to combine more terminals in a network. This dual-mode capability allows it to be used in a wide range of applications.

Communication modules from partner companies equipped with this module will simplify the development of LPWA-compatible devices and thus contribute to the increased dissemination of IoT. The protocol stack for IEEE 802.15.4K will also be offered as an open source product by ROHM’s partner companies.

LPWA solutions in the unlicensed sub-gigahertz band have become increasingly interesting for IoT applications in recent years. However, since the communication protocol used in each case differs from country or region to country, no method has yet been able to establish itself as the standard among the large number of IoT networks currently in use.

Lapis Semiconductor, a member of the Japanese ROHM Group, has already introduced wireless communication chips for the sub-gigahertz range to the market in the past for use in energy-saving radio base stations, thus contributing to a smarter world via IoT. The new LPWA module will be on display in Europe at the beginning of October for the European Utility Week (EUW in Amsterdam (October 3-5). The trade fair focuses on network optimization, renewable energies, energy storage, smart meters, smart cities, smart homes, intelligent buildings, data management and the IoT.

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