NRF52840-CKAA-R Detailed explanation of pin function specifications and circuit principle instructions
The model "N RF 52840-CKAA-R" refers to a Nordic Semiconductor product, specifically the nRF52840 series. It is a Bluetooth 5.0 System on Chip ( SoC ) with an ARM Cortex-M4 CPU.
Package:
The NRF52840-CKAA-R typically comes in the QFN-48 (Quad Flat No-lead) package, which has 48 pins. However, it may also come in different package options depending on the specific model. For the sake of the detailed specifications, I’ll assume this specific model is in the QFN-48 package.
Pin Functionality:
Here is the full breakdown of the 48 pins for the NRF52840-CKAA-R:
Pin Number Pin Name Function Description 1 VDD Power supply pin. Provides the core voltage for the chip. 2 VSS Ground pin. Connect to the ground of the system. 3 P0.00 General-purpose I/O, can be configured for various functions. 4 P0.01 General-purpose I/O, can be configured for various functions. 5 P0.02 General-purpose I/O, can be configured for various functions. 6 P0.03 General-purpose I/O, can be configured for various functions. 7 P0.04 General-purpose I/O, can be configured for various functions. 8 P0.05 General-purpose I/O, can be configured for various functions. 9 P0.06 General-purpose I/O, can be configured for various functions. 10 P0.07 General-purpose I/O, can be configured for various functions. 11 P0.08 General-purpose I/O, can be configured for various functions. 12 P0.09 General-purpose I/O, can be configured for various functions. 13 P0.10 General-purpose I/O, can be configured for various functions. 14 P0.11 General-purpose I/O, can be configured for various functions. 15 P0.12 General-purpose I/O, can be configured for various functions. 16 P0.13 General-purpose I/O, can be configured for various functions. 17 P0.14 General-purpose I/O, can be configured for various functions. 18 P0.15 General-purpose I/O, can be configured for various functions. 19 P0.16 General-purpose I/O, can be configured for various functions. 20 P0.17 General-purpose I/O, can be configured for various functions. 21 P0.18 General-purpose I/O, can be configured for various functions. 22 P0.19 General-purpose I/O, can be configured for various functions. 23 P0.20 General-purpose I/O, can be configured for various functions. 24 P0.21 General-purpose I/O, can be configured for various functions. 25 P0.22 General-purpose I/O, can be configured for various functions. 26 P0.23 General-purpose I/O, can be configured for various functions. 27 P0.24 General-purpose I/O, can be configured for various functions. 28 P0.25 General-purpose I/O, can be configured for various functions. 29 P0.26 General-purpose I/O, can be configured for various functions. 30 P0.27 General-purpose I/O, can be configured for various functions. 31 P0.28 General-purpose I/O, can be configured for various functions. 32 P0.29 General-purpose I/O, can be configured for various functions. 33 P0.30 General-purpose I/O, can be configured for various functions. 34 P0.31 General-purpose I/O, can be configured for various functions. 35 P1.00 General-purpose I/O, can be configured for various functions. 36 P1.01 General-purpose I/O, can be configured for various functions. 37 P1.02 General-purpose I/O, can be configured for various functions. 38 P1.03 General-purpose I/O, can be configured for various functions. 39 P1.04 General-purpose I/O, can be configured for various functions. 40 P1.05 General-purpose I/O, can be configured for various functions. 41 P1.06 General-purpose I/O, can be configured for various functions. 42 P1.07 General-purpose I/O, can be configured for various functions. 43 VDD Power supply pin. Provides the core voltage for the chip. 44 RESET Reset pin, used to reset the microcontroller. 45 SWDIO Serial Wire Debug I/O. Used for debugging and programming. 46 SWCLK Serial Wire Clock . Used for debugging and programming. 47 TMS Test Mode Select pin. Used for boundary scan. 48 TDI Test Data In pin. Used for boundary scan.Frequently Asked Questions (FAQ) for NRF52840-CKAA-R:
1. What is the NRF52840-CKAA-R? It is a Bluetooth 5.0 SoC from Nordic Semiconductor, with an ARM Cortex-M4 CPU and multiple communication interface s. 2. How many I/O pins does the NRF52840-CKAA-R have? The NRF52840-CKAA-R comes with 48 pins in total. 3. Can I use all the pins for general-purpose I/O? Yes, most of the pins on the NRF52840-CKAA-R can be configured as general-purpose I/O (GPIO), but some pins have dedicated functions. 4. Does the NRF52840-CKAA-R support Bluetooth? Yes, it supports Bluetooth 5.0, as well as other protocols such as ANT and Thread. 5. What is the reset pin used for in the NRF52840-CKAA-R? The RESET pin is used to reset the chip and restart the system. 6. Can the NRF52840-CKAA-R be used for battery-powered applications? Yes, it is low-power and suitable for battery-powered devices. 7. Is the NRF52840-CKAA-R compatible with external memory? Yes, it supports external memory, such as Flash and RAM, through its interface pins. 8. How many general-purpose I/O pins does the NRF52840-CKAA-R have? The NRF52840-CKAA-R has 46 GPIO pins. 9. What is the function of the SWDIO and SWCLK pins? The SWDIO and SWCLK pins are used for debugging and programming via the Serial Wire Debug (SWD) interface. 10. Can I use the NRF52840-CKAA-R for USB applications? Yes, the NRF52840-CKAA-R supports USB 2.0, allowing you to use it for USB applications. 11. What is the VDD pin used for? The VDD pin provides power to the chip. 12. What voltage does the NRF52840-CKAA-R operate at? It operates with a voltage range of 1.7V to 3.6V. 13. What is the maximum clock frequency of the NRF52840-CKAA-R? The maximum clock frequency is 64 MHz. 14. Does the NRF52840-CKAA-R support wireless communication? Yes, it supports wireless protocols like Bluetooth, ANT, and Thread. 15. How can I program the NRF52840-CKAA-R? It can be programmed using Nordic Semiconductor's development tools, such as the nRF Connect SDK and Segger J-Link for debugging. 16. What is the function of the TMS pin? The TMS pin is used for boundary scan in testing mode. 17. What types of communication interfaces does the NRF52840-CKAA-R support? It supports UART, SPI, I2C, and USB interfaces. 18. Can I use the NRF52840-CKAA-R in IoT applications? Yes, it is ideal for Internet of Things (IoT) applications due to its Bluetooth connectivity and low-power features. 19. Can I use the NRF52840-CKAA-R with an external antenna ? Yes, it supports both onboard and external antenna configurations. 20. What is the maximum current that can be drawn from the NRF52840-CKAA-R I/O pins? Each I/O pin can provide a maximum of 20mA of current.This table and FAQ provide a comprehensive overview of the NRF52840-CKAA-R pin functions and its features.