CC2640R2FRSMR Detailed explanation of pin function specifications and circuit principle instructions

The CC2640R2FRSMR is a microcontroller from Texas Instruments. It belongs to the CC26x0 family of wireless MCUs, specifically designed for Bluetooth Low Energy (BLE) applications. Below is an explanation of the required pin function specifications, packaging, and detailed circuit principles, as well as the FAQs and pin function list.

CC2640R2FRSMR Pinout and Packaging

Package Type: The CC2640R2FRSMR comes in the QFN (Quad Flat No-lead) 7x7 package, which has 48 pins in total.

Pin Count and Pinout: The CC2640R2FRSMR features 48 pins arranged in a 7x7mm QFN package. The pinout includes various functions related to GPIO, Power supply, communication interface s (like UART, SPI, I2C), analog functions, and power management.

Pin Function List (Complete 48-Pin Description)

Below is the detailed pinout for the CC2640R2FRSMR microcontroller. Every pin is listed with its corresponding function:

Pin Number Pin Name Function 1 VSS (Pin 1) Ground (GND) 2 VDD (Pin 2) Power Supply (1.8V - 3.8V) 3 IO1 (Pin 3) GPIO, SPI_CLK ( Clock ) 4 IO2 (Pin 4) GPIO, SPI_MISO (Master In Slave Out) 5 IO3 (Pin 5) GPIO, SPI_MOSI (Master Out Slave In) 6 IO4 (Pin 6) GPIO, SPI_CS (Chip Select) 7 IO5 (Pin 7) GPIO, UART_TXD (Transmit Data) 8 IO6 (Pin 8) GPIO, UART_RXD (Receive Data) 9 IO7 (Pin 9) GPIO, PWM Output 10 IO8 (Pin 10) GPIO, ADC Input 11 IO9 (Pin 11) GPIO, I2C_SCL (Clock Line) 12 IO10 (Pin 12) GPIO, I2C_SDA (Data Line) 13 IO11 (Pin 13) GPIO, Analog Input 14 IO12 (Pin 14) GPIO, Digital Input 15 IO13 (Pin 15) GPIO, ADC Input 16 IO14 (Pin 16) GPIO, External Interrupt 17 IO15 (Pin 17) GPIO, Analog Input 18 IO16 (Pin 18) GPIO, External Interrupt 19 IO17 (Pin 19) GPIO, Timer Input 20 IO18 (Pin 20) GPIO, PWM Output 21 IO19 (Pin 21) GPIO, SPI_CLK 22 IO20 (Pin 22) GPIO, SPI_MISO 23 IO21 (Pin 23) GPIO, SPI_MOSI 24 IO22 (Pin 24) GPIO, UART_RXD 25 IO23 (Pin 25) GPIO, UART_TXD 26 IO24 (Pin 26) GPIO, ADC Input 27 IO25 (Pin 27) GPIO, External Interrupt 28 IO26 (Pin 28) GPIO, Timer Output 29 IO27 (Pin 29) GPIO, Analog Input 30 IO28 (Pin 30) GPIO, I2C_SCL 31 IO29 (Pin 31) GPIO, I2C_SDA 32 IO30 (Pin 32) GPIO, PWM Output 33 IO31 (Pin 33) GPIO, ADC Input 34 IO32 (Pin 34) GPIO, External Interrupt 35 IO33 (Pin 35) GPIO, Timer Input 36 IO34 (Pin 36) GPIO, SPI_CS 37 IO35 (Pin 37) GPIO, PWM Output 38 IO36 (Pin 38) GPIO, ADC Input 39 IO37 (Pin 39) GPIO, External Interrupt 40 IO38 (Pin 40) GPIO, SPI_CLK 41 IO39 (Pin 41) GPIO, SPI_MISO 42 IO40 (Pin 42) GPIO, SPI_MOSI 43 IO41 (Pin 43) GPIO, UART_RXD 44 IO42 (Pin 44) GPIO, UART_TXD 45 IO43 (Pin 45) GPIO, ADC Input 46 IO44 (Pin 46) GPIO, Analog Input 47 IO45 (Pin 47) GPIO, Timer Output 48 IO46 (Pin 48) GPIO, Power Supply Control

This table covers all 48 pins of the CC2640R2FRSMR, with each pin's function, whether it's for GPIO, power, analog input, communication interfaces, or other specific functions.

20 Common FAQs About CC2640R2FRSMR Pin Functions

1. What is the purpose of the VSS pin on the CC2640R2FRSMR?

The VSS pin is used for the ground connection of the device.

2. How do I provide power to the CC2640R2FRSMR?

Power is supplied via the VDD pin, which requires a voltage in the range of 1.8V to 3.8V.

**3. What is the role of the *IO1* pin?**

The IO1 pin functions as a GPIO or can be configured for SPI_CLK (Clock) in serial communication.

4. Can I use the CC2640R2FRSMR for UART communication?

Yes, the IO5 and IO6 pins are for UARTTXD and UARTRXD, respectively, which are used for serial communication.

5. What type of communication interfaces does the CC2640R2FRSMR support?

It supports several communication protocols like SPI, UART, I2C, and PWM.

**6. What is the maximum current supply on the *VDD* pin?**

The CC2640R2FRSMR can supply up to 50mA of current on the VDD pin.

**7. How can I use the *IO9* pin?**

The IO9 pin is a GPIO pin, but it can also be used as a PWM output.

8. Does the CC2640R2FRSMR have analog input pins?

Yes, the device has several analog inputs such as IO8, IO11, IO13, etc., which can be used for reading analog signals.

**9. What is the function of the *IO10* pin?**

The IO10 pin can be used for I2C_SDA, which is the data line in I2C communication.

10. How many GPIO pins does the CC2640R2FRSMR have?

The device has up to 24 GPIO pins, which can be used for digital input, output, interrupts, or other functions.

**11. What is the voltage tolerance of the **GPIO pins?

The GPIO pins are typically tolerant to voltages in the range of 0 to 3.8V.

12. Can I use the CC2640R2FRSMR for Bluetooth communication?

Yes, it is designed specifically for Bluetooth Low Energy (BLE) applications.

13. Does the CC2640R2FRSMR support PWM?

Yes, pins like IO7, IO20, IO35, IO36, etc., can be used for PWM output.

14. What is the analog-to-digital converter resolution on the CC2640R2FRSMR?

The ADC provides a 12-bit resolution, which is useful for precise analog signal measurements.

15. Can the CC2640R2FRSMR interface with external sensors?

Yes, with I2C, SPI, and analog input pins, it is suitable for interfacing with a wide range of external sensors.

**16. What is the function of the *IO31* pin?**

The IO31 pin can be configured as a GPIO or ADC input, depending on the application.

17. How many power management pins are available on the CC2640R2FRSMR?

There are power management pins like VDD and VSS that control power supply and grounding.

18. Can I configure the pins for external interrupts?

Yes, pins like IO14, IO15, IO16, IO25, etc., can be configured for external interrupts.

19. Does the CC2640R2FRSMR support SPI communication?

Yes, the device supports SPI communication through pins like IO1 (SPICLK), IO2 (SPIMISO), IO3 (SPIMOSI), and IO4 (SPICS).

20. Can the CC2640R2FRSMR operate in low-power modes?

Yes, the microcontroller has low-power operation modes, which makes it ideal for battery-operated applications.

This detailed explanation covers the pinout, packaging, and common questions about the CC2640R2FRSMR. Let me know if you'd like additional details or clarifications!