• S78G

    SX1278 + STM32L073x + GNSS

S78G_Brief_Rev.03.pdf 檔案下載

Package including

S78G module *2


The S78G is designed & manufactured in a smallest form factor -SiP (System in Package). It integrates with SEMTECH SX1278 and a 32-bit ultra-low power Cortex M0+ MCU (STM32L073x), S78G supports global 433MHz or 470MHz ISM-Bands. Capable of 2-way communication and reach over 16 km (10 miles) distance in our field test. Besides, S78G contains a GPS chip –SONY CXD5603GF which is used to receive GPS/GPS+GLONASS signals for positioning.

This product is designed with multiple easy to use interfaces (I2C/SPI/UART/GPIO), fine-tuned RF performance and will be offered with complete SDK library & ready to go HDK, it can significantly help the users to shrink the size of end device and simplify the development efforts for any LoRa applications.

Block diagram



  ◎ Platform Features

ST micro controller: STM32L073Z
High performance ARM Cortex-M0+ 32-bit RISC core operating at a 32MHz frequency
192 Kbytes of Flash memory
20 Kbytes of SRAM
Serial wire debug (SWD) & JTAG
USB 2.0 full-speed device/host

◎ LORA Features

LORA chip: Semtech SX1278
LoRa Modem
+20 dBm constant RF output vs. V supply
Programmable bit rate up to 37500 bps
High sensitivity: down to -137 dBm
Excellent blocking immunity
Preamble detection
Automatic RF Sense and CAD with ultra-fast AFC
Payload up to 128 bytes with CRC

◎ GNSS Features

GPS/GLONASS receiver
Ultra-low power consumption
Supports SBAS/QZSS

  ◎ Other Features

Periphery components inside S78G:

    1. 24MHz crystal for STM32L073Z and 32MHz crystal for SX1278

    2. 16Mbits Flash for CXD5603GF

    3. Level shifter for communication between STM32L073Z and CXD5603GF

    4. LoRa FEM/matching circuit and GNSS FEM/matching circuit

Embedded memories (up to 192 Kbytes of Flash memory and 20 Kbytes of RAM)

    1. 32.768KHz crystal for STM32L073Z

    2. 26MHz TCXO for CXD5603GF

    3. Please see section 2-4 and 2-5 for more details

Epoxy molding finished module in LGA type
Small size: 13mm X 11mm X 1.55 mm

For more information, or for sales inquiries, please contact AcSiP Technology Corp.