STM32F103CBT7 Detailed explanation of pin function specifications and circuit principle instructions

The " STM32F103 CBT7" is a microcontroller from the STM32 family, which is produced by STMicroelectronics. This model is based on the ARM Cortex-M3 architecture, a 32-bit processor known for its efficiency and widespread use in embedded systems.

Packaging and Pinout

The STM32F103CBT7 microcontroller is available in a LQFP-48 package. This package contains 48 pins in total. Each pin serves different purposes such as digital I/O, power supply, analog functions, and communication interface s.

Here’s a detailed description of the pin functions of all 48 pins for the LQFP-48 package, which should be listed in tabular format to keep track of all pin functions:

Pin Function Table for STM32F103CBT7 in LQFP-48 Package

Pin No Pin Name Pin Function Description 1 VSS Ground pin. Connect to ground of the system. 2 VDDA Analog supply voltage input. 3 VSSA Analog ground. Connect to ground of the analog section. 4 PA13 SWDIO: Serial Wire Debug Data Input/Output. Can be used for JTAG debugging. 5 PA14 SWCLK: Serial Wire Debug Clock . Used for debugging. 6 PA15 TDI: Test Data Input. Part of JTAG interface. 7 PB3 SWDIO: Serial Wire Debug Data Input/Output. Can be used for JTAG debugging. 8 PB4 SWCLK: Serial Wire Debug Clock. Used for debugging. 9 PB5 GPIO: General-purpose input/output. 10 PB6 GPIO: General-purpose input/output. 11 PB7 GPIO: General-purpose input/output. 12 PC13 TMS: Test Mode Select (JTAG). Used for JTAG interface. 13 PC14 TCK: Test Clock (JTAG). Used for JTAG interface. 14 PC15 TDO: Test Data Output. Used for JTAG interface. 15 PD0 USART2_RX: UART receive pin. Used for serial communication. 16 PD1 USART2_TX: UART transmit pin. Used for serial communication. 17 PD2 GPIO: General-purpose input/output. 18 PD3 GPIO: General-purpose input/output. 19 PD4 GPIO: General-purpose input/output. 20 PD5 GPIO: General-purpose input/output. 21 PD6 GPIO: General-purpose input/output. 22 PD7 GPIO: General-purpose input/output. 23 PD8 GPIO: General-purpose input/output. 24 PD9 GPIO: General-purpose input/output. 25 PD10 GPIO: General-purpose input/output. 26 PD11 GPIO: General-purpose input/output. 27 PD12 GPIO: General-purpose input/output. 28 PD13 GPIO: General-purpose input/output. 29 PD14 GPIO: General-purpose input/output. 30 PD15 GPIO: General-purpose input/output. 31 PC0 GPIO: General-purpose input/output. 32 PC1 GPIO: General-purpose input/output. 33 PC2 GPIO: General-purpose input/output. 34 PC3 GPIO: General-purpose input/output. 35 PC4 GPIO: General-purpose input/output. 36 PC5 GPIO: General-purpose input/output. 37 PC6 GPIO: General-purpose input/output. 38 PC7 GPIO: General-purpose input/output. 39 PC8 GPIO: General-purpose input/output. 40 PC9 GPIO: General-purpose input/output. 41 PB0 GPIO: General-purpose input/output. 42 PB1 GPIO: General-purpose input/output. 43 PB2 GPIO: General-purpose input/output. 44 PA0 ADC1_IN0: Analog-to-digital converter input. 45 PA1 ADC1_IN1: Analog-to-digital converter input. 46 PA2 USART2_TX: UART transmit pin. Used for serial communication. 47 PA3 USART2_RX: UART receive pin. Used for serial communication. 48 PA4 GPIO: General-purpose input/output.

Frequently Asked Questions (FAQs) about the STM32F103CBT7

What is the STM32F103CBT7 microcontroller's main application? It is widely used in embedded systems, motor control, industrial automation, and IoT applications due to its ARM Cortex-M3 core and rich peripheral support. How many GPIO pins are available on STM32F103CBT7? The STM32F103CBT7 provides a total of 37 GPIO pins. Can the STM32F103CBT7 be used for USB communication? No, STM32F103CBT7 does not have built-in USB support. However, you can use external USB-to-UART converters for communication. What is the clock speed of STM32F103CBT7? The STM32F103CBT7 runs at a maximum clock speed of 72 MHz. What is the total flash Memory size of STM32F103CBT7? The STM32F103CBT7 has 128KB of flash memory. Does STM32F103CBT7 support CAN bus? Yes, the STM32F103CBT7 supports CAN 2.0B protocol. What kind of ADC does STM32F103CBT7 have? STM32F103CBT7 includes a 12-bit ADC with up to 16 channels. Is STM32F103CBT7 suitable for motor control applications? Yes, it is often used in motor control applications because of its PWM generation features and real-time control capabilities. What is the power supply voltage range for STM32F103CBT7? The voltage range is from 2.0V to 3.6V.

Does STM32F103CBT7 have I2C support?

Yes, it has I2C support for communication with peripheral devices.

How many UART interfaces does STM32F103CBT7 have?

STM32F103CBT7 has 3 UART interfaces.

Does STM32F103CBT7 support SPI communication?

Yes, it supports SPI (Serial Peripheral Interface) communication.

What is the maximum operating temperature for STM32F103CBT7?

The typical operating temperature is between -40°C and 85°C.

Can STM32F103CBT7 be used for audio applications?

Yes, it can be used for audio applications, especially with external audio peripherals.

Does STM32F103CBT7 have an integrated watchdog timer?

Yes, it includes a Watchdog Timer to monitor system health.

What is the maximum operating frequency for the STM32F103CBT7's PWM outputs?

The maximum PWM frequency depends on the timer configuration, but it can reach up to 72 MHz.

How many timers does STM32F103CBT7 have?

It includes 4 general-purpose timers and 3 advanced-control timers.

Does STM32F103CBT7 support DMA (Direct Memory Access )?

Yes, STM32F103CBT7 supports DMA to transfer data without CPU intervention.

Can I use STM32F103CBT7 for real-time applications?

Yes, the STM32F103CBT7 is well-suited for real-time applications, with a real-time clock (RTC) and fast interrupt handling.

Is STM32F103CBT7 available in other packages besides LQFP-48?

Yes, STM32F103CBT7 is available in various packages such as LQFP-32, LQFP-64, and more, depending on the application.

This covers the pin functionality and frequently asked questions about the STM32F103CBT7 microcontroller in depth. Let me know if you need further details or a more focused explanation!