u-blox NINA-B112 System Integration Manual

Also see for NINA-B111: Manual Getting started

u-blox NINA-B112 System Integration Manual Manual pdf 10 page image

NINA-B1 series - System Integration ManualUBX-15026175 - R09 System descriptionPage 10 of 49Function Pin Name Pin No. nR52pin Type Description u-blox connectivity softwareGPIO_23 23 P0.05 I/O General purpose I/OPin is analog capableUART_RXD:UART data inputGPIO_24 24 P0.02 I/O General purpose I/OPin is analog capableGPIO_25 25 P0.03 I/O General purpose I/OPin is analog capableGPIO_27 27 P0.04 I/O General purpose I/OPin is analog capableControl RESET_N 19 P0.21 I System reset inputActive lowRadio ANT 13 I/O Tx/Rx antenna interfaceUsed with NINA-B111 modulesNFC1/GPIO_28 28 P0.09 I/O NFC antenna pin 1May be used as a GPIONFC2/GPIO_29 29 P0.10 I/O NFC antenna pin 2May be used as a GPIOOther SWO/GPIO_8 8 P0.18 I/O Serial Wire debug trace dataoutputMay be used as a GPIOBLUE:System status signalSWDCLK 11 I Serial Wire Debug port clock signalSWDIO 15 I/O Serial Wire Debug port data signalTable 2: NINA-B1 pin descriptionDo not apply any Voltage to Digital, Control and Radio signal groups while in Non-poweredmode to avoid damaging the module.1.3 Supply interfaces1.3.1 Main supply inputThe NINA-B1 series uses an integrated DC/DC converter to transform the supply voltage presented at the VCCpin into a stable system core voltage. Due to this, the NINA-B1 modules are compatible for use in batterypowered designs.While using NINA-B1 with a battery, it is important that the battery type can handle the peak power of themodule. In case of battery supply, consider adding extra capacitance on the supply line to avoid capacitydegradation. See the NINA-B1 series Data Sheet [2] for information about voltage supply requirement andcurrent consumption.Table 3: Summary of voltage supply requirementsThe current requirement in Table 3 considers using the u-blox connectivity software with UARTcomunication. But it does not include any aditional I/O current. Any use of external push-buttons, LEDs, orother interfaces will add to the total current consumption of the NINA-B1 module. The peak currentconsumption of the entire design will have to be taken into account when considering a battery poweredsolution.Rail Voltage requirement Current requirement (peak)VCC 1.7 V – 3.6 V 15 mA