Type 1SJ Integrated LoRaWAN Module

With just 10.0 mm × 8.0 mm × 1.6 mm dimensions, Murata developed the extremely small type 1SJ (LBAA0QB1SJ) LoRa™ module. It is suitable for a wide range of high-volume applications where small size, long range, extended battery life, security, and a competitive price point are requirements.

Based on a second-generation Semtech SX1262 radio frequency IC (RFIC), the type 1SJ LoRa module also features an open STM32L0 microcontroller (MCU) from STMicroelectronics along with an RF switch, 192 kB of Flash memory, and 20 kB of RAM.

This extensive memory provision ensures that sufficient resources are available for the application layers. Also housed in the tiny module is a temperature-controlled crystal oscillator (TXCO) and multiple communication interfaces including UART, I²C, SPI, ADC, USB, and various GPIOs.

Designed for deployment globally, the module supports ISM bands from 868 MHz to 916 MHz, including those used in Europe, the USA, India, and the Pacific rim. The device has a single part number globally, simplifying customer supply chains.

Operating from a single supply rail (up to 3.9 V_DC), the type 1SJ module incorporates several low-power modes that allow the real-time clock (RTC) to operate while drawing a typical current of just 1.3 µA. This enhanced current consumption allows devices based upon Murata’s module to operate for years from a single battery.

The resin-molded package provides physical ruggedness, allowing the module to operate across the temperature range of −40ºC to +85 ºC.

The type 1SJ LoRa module will help designers to develop solutions that meet the most demanding requirements, especially in areas such as asset tracking, utilities, agriculture, smart cities, smart buildings, industrial, and other IoT applications.