LoRa-based module is world’s smallest, claims Murata
Measuring 10 x 8.0 x 1.6mm, the Type 1SJ module is the smallest LoRa-based module available today, claims Murata. It is suitable for a range of high-volume applications which require small size, long range, extended battery life, security and a competitive price point, advises the company.
It is based upon a second-generation Semtech SX1262 radio frequency IC (RFIC) and features an open STM32L0 microcontroller from STMicroelectronics, an RF switch, 192kbyte of flash memory and 20kbyte of RAM. The memory allows sufficient resources to be available for the application layers, says Murata. The module also houses a temperature-controlled crystal oscillator (TXCO) and multiple communication interfaces including UART, I2C, SPI, ADC, USB and general purpose I/Os.
The Type 1SJ module supports ISM bands from 868 to 916MHz, including those used in Europe, the USA, India, China and the Pacific Rim. To simplify customer supply chains, Murata uses a single part number globally for this device.
The module operates from a single supply rail (up to 3.9V DC) and incorporates several low power modes that allow the real time clock (RTC) to operate while drawing a typical current of just 1.3 microA. This enhanced current consumption allows devices based upon the module to operate for years from a single battery.
Pedro Pachuca, director of Wireless Products, Murata, believes that the module will “develop and expand . . . IoT solutions in a variety of industries, including asset tracking smart buildings and utilities”.
The open microcontroller allows the module to be easily flashed with code from trusted objects that ensure the flash memory is secure and encrypted. This protects the end system against the threat of malicious tampering. The resin mould package is rugged and allows the module to operate across the temperature range -40 to +85 degrees C.
The Type 1SJ LoRa-based module will help designers to develop solutions that meet the most demanding requirements, especially in, smart buildings, industrial and other IoT applications, says Murata.
Sample quantities of the Type 1SJ module and an evaluation kit are available now.
http://www.murata.com
