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STMICROELECTRONICS RELEASES LONG-RANGE WIRELESS MICROCONTROLLERS

New STM32 system-on-chip with low power and multi-protocol support simplifies wireless system design for diverse use cases.

STMICROELECTRONICS RELEASES LONG-RANGE WIRELESS MICROCONTROLLERS

STMicroelectronics has released a new microcontroller (MCU) that fuses the Company’s expertise in wireless-device design with its high-performing and efficient STM32 architecture. Novel power-saving features enable the extension of battery life in the new wireless MCUs beyond 15 years.

Especially valuable in remotely deployed applications including metering and monitoring devices and data from alarm systems, actuators, and sensors in today’s smart buildings, smart factories, and smart cities, the STM32WL3 wireless MCUs can help limit power consumption and prioritize activities. Adoption and use of these efficient MCUs can lead to improved user experience, service delivery, and reduced environmental footprint. Device and application designers can leverage ST’s wireless MCUs to develop and deliver new products to the world quickly for maximum benefit.

The latest innovation in ST’s lineup of integrated wireless chips, the STM32WL3 contains an advanced, power-efficient multi-protocol radio suitable for long-range communication using license-free frequency bands reserved globally for industrial, scientific, and medical (ISM) applications. In addition to the main radio, ST has integrated an industry-unique ultra-low-power radio the system can power-down to save energy while listening continuously for a wake-up signal.

Lead customers are using STM32WL3 MCUs to add value to smart connected devices. For example, Lierda Internet of Things Technology, is using the STM32WL33 to reduce power and add long-range wireless connectivity to existing networking products. Leveraging the MCU’s wake-up radio to minimize power consumption, the Lierda module monitors and maintains network equipment across a point-to-point or point-to-multipoint wireless connection.

Another customer, Silent Smart Technology, has created a family of modules based on STM32WL3 wireless MCUs that operate in various sub-1GHz frequency bands. The modules support multiple transmission modes, channel monitoring, wireless relay, and other functions. The MCU’s wakeup feature allows the modules to operate in deep-sleep mode, consuming only about 1µA overall current while remaining ready to return to full operation.

The STM32WL3 joins ST’s growing family of devices that combine the radio with the main application controller to ease engineering challenges, reduce power and size, and enhance reliability.

The complete lineup contains devices with Flash density from 64KB to 256KB and 16KB or 32KB RAM, in a 32-pin or 48-pin VFQFPN package. There is also an extended temperature range option, from -40°C to 105°C. All variants are covered with ST’s 10-year longevity guarantee for industrial products. Sample quantities are available now.

Tailored to the specific needs of smart-metering applications, the STM32WL3 embeds an LCD controller and a specific peripheral — LC sensor controller – for fluid flow measurement that eases the design of water meters and heat-cost allocators. Multi-protocol support enables cost-efficient deployment of one single platform over different long-range wireless technologies, including Sigfox, KNX, mioty, M-Bus, and others.

www.st.com

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