Datasheet

NEO-M9N-Data sheet
3 Pin definition
3.1 Pin assigment
The pin assignment of the NEO-M9N module is shown in Figure 2. The defined configuration of the
PIOs is listed in Table 9.
For detailed information on pin functions and characteristics, see the u-blox NEO-M9N Integration
manual [1].
Figure 2: NEO-M9N pin assignment
Pin No Name I/O Description
1 SAFEBOOT_N I SAFEBOOT_N (used for FW updates and reconfiguration, leave open)
2 D_SEL I Interface select (open or VCC = UART + I2C; GND = SPI)
3 TIMEPULSE O TIMEPULSE (1 PPS)
4 EXTINT I EXTINT (PIO7)
5 USB_DM I/O USB Data (DM)
6 USB_DP I/O USB Data (DP)
7 VDD_USB I USB Supply
8 RESET_N I RESET (active low)
9 VCC_RF O External LNA or active antenna power
10 GND I Ground
UBX-19014285 - R02
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3 Pin definition Page 8 of 21
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