STM32F103RBT6 Detailed explanation of pin function specifications and circuit principle instructions

The " STM32F103 RBT6" belongs to the STMicroelectronics brand. It is part of the STM32 series of microcontrollers, specifically within the STM32F1 family.

Packaging Type: The "STM32F103RBT6" typically comes in LQFP-48 (Low-profile Quad Flat Package) with 48 pins. However, there are various package types in the STM32F1 series, so the exact packaging of your part may vary based on the specific selection you have.

For the 48-pin package of the STM32F103RBT6, here is a detailed explanation of the pin functions:

STM32F103RBT6 Pin Function List (48-Pin LQFP Package)

Pin No. Pin Name Function Description 1 VSS Ground connection 2 VDDA Analog Power supply 3 VSSA Analog ground 4 PA13 SWDIO (Serial Wire Debug Input/Output) 5 PA14 SWCLK (Serial Wire Clock ) 6 PA15 JTAG TDI (Test Data In) or GPIO 7 PB0 GPIO (General-purpose I/O) or External Interrupt 8 PB1 GPIO or External Interrupt 9 PB2 GPIO or External Interrupt 10 PB3 GPIO or External Interrupt 11 PB4 GPIO or External Interrupt 12 PB5 GPIO or External Interrupt 13 PB6 GPIO or External Interrupt 14 PB7 GPIO or External Interrupt 15 PB8 GPIO or External Interrupt 16 PB9 GPIO or External Interrupt 17 PC13 GPIO or External Interrupt 18 PC14 GPIO or External Interrupt 19 PC15 GPIO or External Interrupt 20 PD0 USART1_RX (USART1 Receive) 21 PD1 USART1_TX (USART1 Transmit) 22 PD2 I2C1_SDA (I2C Data) or GPIO 23 PD3 I2C1_SCL (I2C Clock) or GPIO 24 PD4 SPI1_MISO (SPI Master In Slave Out) 25 PD5 SPI1_MOSI (SPI Master Out Slave In) 26 PD6 SPI1_SCK (SPI Clock) 27 PD7 SPI1_NSS (SPI Chip Select) 28 VDD Power supply connection 29 PA0 ADC0 or GPIO 30 PA1 ADC1 or GPIO 31 PA2 ADC2 or GPIO 32 PA3 ADC3 or GPIO 33 PA4 ADC4 or GPIO 34 PA5 ADC5 or GPIO 35 PA6 ADC6 or GPIO 36 PA7 ADC7 or GPIO 37 PB10 USART3_TX (USART3 Transmit) 38 PB11 USART3_RX (USART3 Receive) 39 PB12 SPI2_SCK (SPI Clock) 40 PB13 SPI2_NSS (SPI Chip Select) 41 PB14 SPI2_MISO (SPI Master In Slave Out) 42 PB15 SPI2_MOSI (SPI Master Out Slave In) 43 PC10 USART2_TX (USART2 Transmit) 44 PC11 USART2_RX (USART2 Receive) 45 PC12 TAMPER (Tamper input) 46 VCAP capacitor for internal voltage regulator 47 NRST Reset (External Reset) 48 VDD Power supply connection

Frequently Asked Questions (FAQ)

What is the STM32F103RBT6 microcontroller? The STM32F103RBT6 is a 32-bit microcontroller from STMicroelectronics, based on the ARM Cortex-M3 core.

What is the package type of the STM32F103RBT6? The STM32F103RBT6 comes in an LQFP-48 package with 48 pins.

How many pins does the STM32F103RBT6 have? The STM32F103RBT6 has 48 pins in total.

What are the general-purpose I/O pins on the STM32F103RBT6? The pins PA0-PA15, PB0-PB15, PC13-PC15, and PD0-PD7 can be configured as general-purpose I/O.

What is the role of PA13 and PA14? PA13 and PA14 are used for the Serial Wire Debug (SWD) interface , specifically SWDIO and SWCLK.

What is the function of PD0 and PD1? PD0 is used for USART1RX, and PD1 is used for USART1TX.

Does the STM32F103RBT6 support SPI? Yes, it supports SPI communication via pins PD4 (SPI1MISO), PD5 (SPI1MOSI), PD6 (SPI1SCK), and PD7 (SPI1NSS).

How many ADC channels does the STM32F103RBT6 support? The STM32F103RBT6 supports 8 ADC channels, from PA0 to PA7.

What is the function of PB10 and PB11? PB10 and PB11 are used for USART3TX and USART3RX, respectively.

What is the voltage range for the STM32F103RBT6? The STM32F103RBT6 operates within a voltage range of 2.0V to 3.6V.

Does the STM32F103RBT6 support I2C communication? Yes, it supports I2C via pins PD2 (I2C1SDA) and PD3 (I2C1SCL).

Can I use PA15 as a JTAG pin? Yes, PA15 can function as the JTAG TDI (Test Data In) pin, but it can also be used as a GPIO.

How do I reset the STM32F103RBT6? The reset is triggered by the NRST pin, which is an external reset input.

Is there a tamper detection feature on the STM32F103RBT6? Yes, PC12 is the TAMPER pin, which can be used to detect external tamper events.

What is the purpose of the VCAP pin? The VCAP pin is used for connecting a capacitor to the internal voltage regulator.

What is the maximum operating frequency of the STM32F103RBT6? The STM32F103RBT6 can operate up to 72 MHz.

What types of interrupts does the STM32F103RBT6 support? It supports various interrupt types, including external interrupts, USART, SPI, and timer interrupts.

What are the available communication interfaces on the STM32F103RBT6? The STM32F103RBT6 supports USART, SPI, and I2C communication interfaces.

Can I use the STM32F103RBT6 in low-power applications? Yes, the STM32F103RBT6 features low-power modes to reduce power consumption.

Is the STM32F103RBT6 suitable for automotive applications? The STM32F103RBT6 can be used in automotive applications with appropriate voltage and environmental considerations, but it is not specifically automotive grade.

This response provides a detailed overview of the STM32F103RBT6's pin functionality and answers to frequently asked questions about the microcontroller.