STM32F402RCT6 Detailed explanation of pin function specifications and circuit principle instructions

The STM32F402RCT6 is a microcontroller from the STM32 family, produced by STMicroelectronics. It is part of the STM32F4 series, which features high-performance ARM Cortex-M4-based processors.

Packaging and Pinout:

The STM32F402RCT6 is packaged in a LQFP (Low-profile Quad Flat Package), specifically the LQFP-64 package. This means it has 64 pins in a square arrangement.

Pin Functionality:

Here is the complete pinout and the function of each pin for the STM32F402RCT6 in the LQFP-64 package:

Pin Number Pin Name Pin Function Description 1 VSS Ground pin, used for the return path of current. 2 VDDA Analog Power supply, provides power to the analog circuitry. 3 VREF+ Reference voltage input for the ADC (Analog to Digital Converter). 4 VREF- Reference voltage ground for the ADC. 5 PA0 General-purpose I/O pin; it can also be used as an ADC input or for other peripherals. 6 PA1 General-purpose I/O pin; can function as an ADC input or for peripherals. 7 PA2 General-purpose I/O pin; used for USART1 TX or other peripherals. 8 PA3 General-purpose I/O pin; used for USART1 RX or other peripherals. 9 PA4 General-purpose I/O pin; also used for SPI1 SS (Slave Select). 10 PA5 General-purpose I/O pin; also used for SPI1 SCK ( Clock ). 11 PA6 General-purpose I/O pin; used for SPI1 MISO (Master In Slave Out). 12 PA7 General-purpose I/O pin; used for SPI1 MOSI (Master Out Slave In). 13 PA8 General-purpose I/O pin; used for MCO (Microcontroller Clock Output). 14 PA9 General-purpose I/O pin; used for USART1 TX. 15 PA10 General-purpose I/O pin; used for USART1 RX. 16 PA11 General-purpose I/O pin; used for CAN1 RX (Receive). 17 PA12 General-purpose I/O pin; used for CAN1 TX (Transmit). 18 PA13 Debugging pin for SWD (Serial Wire Debug) – SWDIO. 19 PA14 Debugging pin for SWD (Serial Wire Debug) – SWCLK. 20 PA15 General-purpose I/O pin; used for SPI1 NSS (Slave Select). 21 PB0 General-purpose I/O pin; can be used for external interrupts or for other peripherals. 22 PB1 General-purpose I/O pin; can be used for external interrupts or for other peripherals. 23 PB2 General-purpose I/O pin; can be used for external interrupts or for other peripherals. 24 PB3 General-purpose I/O pin; can be used for external interrupts or for other peripherals. 25 PB4 General-purpose I/O pin; can be used for external interrupts or for other peripherals. 26 PB5 General-purpose I/O pin; used for SPI1 SCK. 27 PB6 General-purpose I/O pin; used for I2C1 SCL (Serial Clock Line). 28 PB7 General-purpose I/O pin; used for I2C1 SDA (Serial Data Line). 29 PB8 General-purpose I/O pin; can be used for external interrupts or other peripherals. 30 PB9 General-purpose I/O pin; can be used for external interrupts or other peripherals. 31 PC0 General-purpose I/O pin; used for ADC input or other peripherals. 32 PC1 General-purpose I/O pin; used for ADC input or other peripherals. 33 PC2 General-purpose I/O pin; used for ADC input or other peripherals. 34 PC3 General-purpose I/O pin; used for ADC input or other peripherals. 35 PC4 General-purpose I/O pin; used for ADC input or other peripherals. 36 PC5 General-purpose I/O pin; used for ADC input or other peripherals. 37 PC6 General-purpose I/O pin; used for I2C1 SCL or other peripherals. 38 PC7 General-purpose I/O pin; used for I2C1 SDA or other peripherals. 39 PC8 General-purpose I/O pin; used for external interrupts or other peripherals. 40 PC9 General-purpose I/O pin; used for external interrupts or other peripherals. 41 PD0 General-purpose I/O pin; used for external interrupts or other peripherals. 42 PD1 General-purpose I/O pin; used for external interrupts or other peripherals. 43 PD2 General-purpose I/O pin; used for external interrupts or other peripherals. 44 PD3 General-purpose I/O pin; used for external interrupts or other peripherals. 45 PD4 General-purpose I/O pin; used for external interrupts or other peripherals. 46 PD5 General-purpose I/O pin; used for external interrupts or other peripherals. 47 PD6 General-purpose I/O pin; used for external interrupts or other peripherals. 48 PD7 General-purpose I/O pin; used for external interrupts or other peripherals. 49 PD8 General-purpose I/O pin; used for external interrupts or other peripherals. 50 PD9 General-purpose I/O pin; used for external interrupts or other peripherals. 51 PE0 General-purpose I/O pin; used for external interrupts or other peripherals. 52 PE1 General-purpose I/O pin; used for external interrupts or other peripherals. 53 PE2 General-purpose I/O pin; used for external interrupts or other peripherals. 54 PE3 General-purpose I/O pin; used for external interrupts or other peripherals. 55 PE4 General-purpose I/O pin; used for external interrupts or other peripherals. 56 PE5 General-purpose I/O pin; used for external interrupts or other peripherals. 57 PE6 General-purpose I/O pin; used for external interrupts or other peripherals. 58 PE7 General-purpose I/O pin; used for external interrupts or other peripherals. 59 PE8 General-purpose I/O pin; used for external interrupts or other peripherals. 60 PE9 General-purpose I/O pin; used for external interrupts or other peripherals. 61 VDD Power supply pin, provides power to the microcontroller. 62 VSSA Analog power supply ground. 63 BOOT0 Boot configuration pin, used to determine the boot mode (boot from Flash or system Memory ). 64 NRST Reset pin, used to reset the microcontroller.

FAQs:

Q: What is the STM32F402RCT6 microcontroller used for? A: The STM32F402RCT6 is used for high-performance embedded systems that require low power consumption and high-speed processing, such as motor control, industrial automation, and consumer electronics. Q: How many pins does the STM32F402RCT6 have? A: The STM32F402RCT6 has 64 pins in the LQFP-64 package. Q: Can I use all the pins as general-purpose I/O? A: No, some pins are dedicated to specific functions like analog inputs (ADC), communication interface s (SPI, UART), and debug functions (SWD). Q: What is the maximum clock speed of the STM32F402RCT6? A: The STM32F402RCT6 can operate at a maximum clock speed of 180 MHz. Q: What peripherals does the STM32F402RCT6 support? A: It supports multiple peripherals including UART, SPI, I2C, CAN, ADC, DAC, and timers. Q: Does the STM32F402RCT6 have built-in Flash memory? A: Yes, it has 512 KB of built-in Flash memory for program storage. Q: Is the STM32F402RCT6 suitable for low-power applications? A: Yes, it has multiple low-power modes suitable for battery-powered applications. Q: What are the key features of the STM32F402RCT6’s analog-to-digital converter (ADC)? A: The ADC in STM32F402RCT6 has up to 12-bit resolution, supports up to 16 channels, and includes a built-in voltage reference. Q: How do I reset the STM32F402RCT6? A: You can reset the STM32F402RCT6 by applying a low signal to the NRST pin.

Q: Can I use the STM32F402RCT6 for motor control?

A: Yes, the STM32F402RCT6 has peripherals like timers and PWM output, which are commonly used for motor control applications.

Q: Does STM32F402RCT6 support USB?

A: No, the STM32F402RCT6 does not have USB support, but other STM32F4 series models do.

Q: Can I use the STM32F402RCT6 in a real-time clock application?

A: Yes, the STM32F402RCT6 has a built-in real-time clock (RTC) module for such applications.

Q: What is the operating voltage range of the STM32F402RCT6?

A: The operating voltage range is between 2.0 V and 3.6 V.

Q: How can I debug the STM32F402RCT6?

A: You can use the SWD interface or JTAG for debugging purposes.

Q: Does the STM32F402RCT6 support DMA?

A: Yes, the STM32F402RCT6 supports Direct Memory Access (DMA) for faster data transfer.

Q: What is the power consumption of the STM32F402RCT6?

A: The power consumption depends on the operating conditions and clock speed. In low-power modes, it can be quite efficient.

Q: Can I use the STM32F402RCT6 in automotive applications?

A: Yes, it is suitable for automotive applications due to its robustness, but you should check specific requirements for voltage, temperature range, and certifications.

Q: What is the function of the BOOT0 pin?

A: The BOOT0 pin determines whether the microcontroller boots from Flash memory or system memory (bootloader).

Q: How many ADC channels are available in the STM32F402RCT6?

A: The STM32F402RCT6 provides up to 16 ADC channels.

Q: Can the STM32F402RCT6 be used in wireless applications?

A: While the STM32F402RCT6 itself doesn’t have wireless functionality, it can interface with external wireless modules via SPI, UART, or other communication protocols.