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NEO-M8N-0 datasheet, price & pinout
- Modulationor Protocol: BeiDou, Galileo, GLONASS, GNSS, GPS
- Applications: General Purpose
- Data Interface: I2C, SPI, UART, USB
- Package: 24-SMD Module
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A NEO-M8N GPS Module with U-Blox U-Center PPS Setup and Test
NEO-M8N-0 pinout
The NEO-M8N-0 module from u-blox features a versatile set of 24 pins that support multiple interfaces and power configurations. These pins include support for UART, SPI, I²C (DDC), USB, and dedicated GNSS functionality, allowing flexible integration into a variety of positioning and navigation applications. Understanding the pinout is crucial for proper connection, signal routing, and power management in embedded systems.
| No. | Name | PIO No. | I/O | Description |
|---|---|---|---|---|
| 1 | SAFEBOOT_N | – | I | SAFEBOOT_N (for future service, updates and reconfiguration, leave OPEN) |
| 2 | D_SEL | – | I | Interface select |
| 3 | TIMEPULSE | 11 | O | Time pulse (1PPS) |
| 4 | EXTINT | 13 | I | External interrupt pin |
| 5 | USB_DM | – | I/O | USB data |
| 6 | USB_DP | – | I/O | USB data |
| 7 | VDD_USB | – | I | USB supply |
| 8 | RESET_N | – | I | RESET_N |
| 9 | VCC_RF | – | O | Output voltage RF section |
| 10 | GND | – | I | Ground |
| 11 | RF_IN | – | I | GNSS signal input |
| 12 | GND | – | – | Ground |
| 13 | GND | – | – | Ground |
| 14 | LNA_EN / Reserved | 16 | O | LNA_EN (NEO-M8N/Q/J): Antenna/LNA control; Reserved (NEO-M8M): Reserved |
| 15 | Reserved | – | – | Reserved |
| 16 | Reserved | – | – | Reserved |
| 17 | Reserved | – | – | Reserved |
| 18 | SDA / SPI CS_N | 9 | I/O | DDC data if D_SEL =1 (or open); SPI chip select if D_SEL = 0 |
| 19 | SCL / SPI CLK | 8 | I/O | DDC clock if D_SEL =1 (or open); SPI clock if D_SEL = 0 |
| 20 | TXD / SPI MISO | 6 | O | Serial port if D_SEL =1 (or open); SPI MISO if D_SEL = 0 |
| 21 | RXD / SPI MOSI | 7 | I | Serial port if D_SEL =1 (or open); SPI MOSI if D_SEL = 0 |
| 22 | V_BCKP | – | I | Backup voltage supply |
| 23 | VCC | – | I | Supply voltage |
| 24 | GND | – | – | Ground |
This comprehensive pinout mapping of the NEO-M8N-0 ensures reliable interfacing with external components such as antennas, microcontrollers, and USB hosts. Developers should pay close attention to power supply lines, reserved pins, and configuration options (such as D_SEL) to optimize the module’s performance. Proper implementation of the pin functions enhances stability and maximizes the GNSS module’s accuracy and responsiveness.
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