Electronic Component Solutions

Accelerate Development of Remote IoT Nodes with LoRa SiP Family

LoRa® (Long Range) technology is extending the reach of the Internet of Things (IoT) by combining long-range wireless connectivity with low-power performance. To accelerate the development of LoRa-based connected solutions, Microchip introduced a highly integrated LoRa System-in-Package (SiP) family with an ultra-low-power 32-bit microcontroller (MCU), sub-GHz RF LoRa transceiver and software stack. The SAM R34/35 SiPs come with certified reference designs and proven interoperability with major LoRaWAN™ gateway and network providers, significantly simplifying the entire development process with hardware, software and support. The devices also provide the industry’s lowest power consumption in sleep modes, offering extended battery life in remote IoT nodes.

Most LoRa end devices remain in sleep mode for extended periods of time, only waking up occasionally to transmit small data packets. Powered by the ultra-low-power SAM L21 Arm® Cortex®-M0+ based MCU, the SAM R34 devices provide sleep modes as low as 790 nA to significantly reduce power consumption and extend battery life in end applications. Highly integrated in a compact 6 x 6 mm package, the SAM R34/35 family is ideal for a broad array of long-range, low-power IoT applications that require small form factor designs and multiple years of battery life.

SAM R34/R35 Low Power LoRa® Sub-GHz System-in-Package Family features:

Operational and Peripheral Feature Highlights

  • Compact, highly integrated solution Arm Cortex M0+ MCU & LoRa Radio
  • 6×6 mm compact BGA package
  • Up to 256 KB Flash accommodates application code and stack
  • Up to 40 KB RAM including 8KB LP-RAM
  • One full-speed 12 Mbps USB and up to five Serial Communication Interfaces (SERCOM), each configurable as USART, I2C, SPI or LIN
  • 12-bit, 1 Msps Analog-to-Digital Converter (ADC) with up to eight external channels
  • Two analog comparators with window compare function

Radio Feature Highlights

  • 862 MHz to 1020 MHz coverage
  • Up to 20 dBm (100 mW) max power
  • Up to +13 dBm (20 mW) high-efficiency PA
  • High sensitivity Down to -136 dBm (LoRaWAN™ protocol compliant modes)
  • Down to -148 dBm (proprietary narrowband modes)
  • Up to 168 dB maximum link budget
  • Low RX current of 17 mA (typical)LoRa Technology, (G)FSK, (G)MSK and OOK Modulation
  • Automatic RF Sense and CAD with ultra-fast Automatic Frequency Control (AFC) Packet Engine up to 256 bytes with Cyclic Redundancy Check (CRC)