Nrf52832-qfaa Bluetooth wireless chip

NRF52832-QFAA
manufacturer ：NORDIC
Standard packaging ：3000/ Coiling
encapsulation / Shell ：QPN48


Brief introduction NRF52832-QFAA Knowledge about :
● 2.4GHz radio frequency Transceiver
● low power consumption bluetooth Extremely high receiving sensitivity in mode -96dBm
● Support 1Mbps,2Mbps Rate
● TX Transmit power from -20～+4dBm With 4dB interval
● RX and TX(0dBm) The peak current of is 5.5mA
● ARM Cortex M4F 32 position 64MHz The main frequency is floating point unit processor
● stay FLASH The power consumption at runtime in is 38uA/MHz
● stay RAM The power consumption at runtime in is 30uA/MHz
● single wire Interface （SWD）
● Support parallel multi protocol
● With a wake-up call NFC-A label
● Support BLE、ANT、 private 2.4G A variety of protocols
● agile Power management
● Support voltage range 1.7～3.6V
● Automatic switching LDO and DC/DC Voltage stabilizing mode
● 400nA @3V OFF Off mode
● 720nA @3V OFF Turn off the mode band 32kB RAM keep
● 1.9uA @3V ON On mode ,32.768kHz Crystal oscillator ,RTC The clock ,32kB RAM keep
NRF52832-QFAA ● 512kB flash/64kB RAM
● Rich peripherals and interfaces
● With programmable gain 8 individual 12 Bit ADC passageway
●  Temperature sensor
● 32 individual GPIO
● 3×4 Strip Easy DMA The hardware PWM
● 5 Strip Counter Mode 32 Bit timer
● The standard IIS Interface
● Digital microphone interface （PDM）
● 3 Group with master-slave mode SPI Interface
● 2 Group with master-slave mode I2C Interface
● belt easy DMA Of UART
● Programmable peripheral interface (PPI)
● Quadrature decoder （QDEC）
● belt Easy DMA The hardware AES Encrypting device
● 3 individual RTC The clock


NRF52832-QFAA   SoC Yes 512KB Of Flash and 64KB Of RAM, This is also higher than that of other manufacturers chip A large part .Nordic Said there would be 400KB Of Flash Can be used in applications . If you've ever developed BLE Our products will know ,BLE The protocol stack of at least 80KB The above Flash. If like most BLE SoC That only provides 128KB Of Flash Words , The application is only about 40KB Space , But for general sensor The task of collection is similar . Previous nRF51822 Highest offer 256KB Of Flash, additional Flash and RAM Space also means nRF52832 It can support multiple protocols , And automatically switch at runtime . Now there are many products that support the multi protocol feature .
nRF52832 Provides -96dBm Sensitivity , This data is very close to ti Of -97dBm, Higher sensitivity means more transmission distance .