STM8S903K3T6C TR Detailed explanation of pin function specifications and circuit principle instructions

The part number STM8S903K3T6CTR is a microcontroller from STMicroelectronics (ST). This model belongs to the STM8S family, which is based on an 8-bit core designed for various embedded applications.

Now, I'll provide detailed information about its package, pin functions, and FAQ.

Package Type:

The STM8S903K3T6CTR is available in a LQFP-32 package, meaning it has 32 pins. LQFP stands for Low-Profile Quad Flat Package.

Pin Functions Table:

Here’s a detailed breakdown of the 32 pins with their corresponding functions:

Pin Number Pin Name Pin Function Description 1 VSS Ground pin. 2 VDD Power supply pin (3.3V or 5V). 3 NC No connection. 4 PA0 GPIO (General Purpose Input/Output), ADC Input 5 PA1 GPIO (General Purpose Input/Output), ADC Input 6 PA2 GPIO (General Purpose Input/Output), ADC Input 7 PA3 GPIO (General Purpose Input/Output), ADC Input 8 PA4 GPIO (General Purpose Input/Output), USART TX 9 PA5 GPIO (General Purpose Input/Output), SPI SCK 10 PA6 GPIO (General Purpose Input/Output), SPI MISO 11 PA7 GPIO (General Purpose Input/Output), SPI MOSI 12 PB0 GPIO (General Purpose Input/Output), Timer Input 13 PB1 GPIO (General Purpose Input/Output), Timer Input 14 PB2 GPIO (General Purpose Input/Output), Timer Output 15 PB3 GPIO (General Purpose Input/Output), Timer Output 16 PB4 GPIO (General Purpose Input/Output), External Interrupt 17 PB5 GPIO (General Purpose Input/Output), External Interrupt 18 PB6 GPIO (General Purpose Input/Output), USART RX 19 PB7 GPIO (General Purpose Input/Output), USART RX 20 PC0 GPIO (General Purpose Input/Output), ADC Input 21 PC1 GPIO (General Purpose Input/Output), ADC Input 22 PC2 GPIO (General Purpose Input/Output), ADC Input 23 PC3 GPIO (General Purpose Input/Output), ADC Input 24 PC4 GPIO (General Purpose Input/Output), I2C SDA 25 PC5 GPIO (General Purpose Input/Output), I2C SCL 26 RESET Reset pin for the MCU. 27 NRST Reset pin for the MCU. 28 SCL I2C clock line, bidirectional data. 29 SDA I2C data line, bidirectional data. 30 SPI_CS SPI Chip Select, active low. 31 USART_RTS USART Request To Send (RTS) for handshaking. 32 USART_CTS USART Clear To Send (CTS) for handshaking.

Pinout Diagram:

You can visualize the pinout and package with specific pin function assignments, but the STM8S903K3T6CTR uses the standard LQFP-32 configuration.

20 Common FAQs About STM8S903K3T6CTR:

What is the core architecture of the STM8S903K3T6CTR? The STM8S903K3T6CTR uses the STM8 8-bit microcontroller core. What is the operating voltage range for STM8S903K3T6CTR? The operating voltage is between 2.95V to 5.5V. How many I/O pins does the STM8S903K3T6CTR have? The STM8S903K3T6CTR has a total of 32 I/O pins. What type of package does the STM8S903K3T6CTR come in? It comes in a LQFP-32 package. Can the STM8S903K3T6CTR be used in low power applications? Yes, it has a low-power mode for energy-efficient applications. What are the communication protocols supported by the STM8S903K3T6CTR? It supports USART, SPI, and I2C protocols. What is the maximum clock frequency of STM8S903K3T6CTR? The maximum clock frequency is 16 MHz. Does STM8S903K3T6CTR support PWM? Yes, it supports Pulse Width Modulation (PWM) via timers. What is the size of the Flash memory in STM8S903K3T6CTR? It has 8KB of Flash memory. Does STM8S903K3T6CTR support ADC functionality? Yes, it has a 10-bit ADC with up to 8 channels. How many timers are available in the STM8S903K3T6CTR? The STM8S903K3T6CTR includes 2 timers. Is there a watchdog timer in STM8S903K3T6CTR? Yes, it includes an independent Watchdog Timer (IWDG). What is the operating temperature range of STM8S903K3T6CTR? The operating temperature range is -40°C to +85°C. Can STM8S903K3T6CTR be used for automotive applications? Yes, it can be used in automotive applications within the temperature range specified. What is the function of the NRST pin? The NRST pin is the reset pin, used to restart the MCU. Does STM8S903K3T6CTR support external interrupts? Yes, it supports external interrupts on several GPIO pins. Can STM8S903K3T6CTR interface with external sensors? Yes, it has ADC channels and I2C/SPI interfaces for sensor connection. How much RAM does STM8S903K3T6CTR have? It has 1KB of RAM. Is the STM8S903K3T6CTR suitable for consumer electronics? Yes, it is ideal for consumer electronics due to its low power consumption and adequate processing power. What are the typical applications of STM8S903K3T6CTR? It is commonly used in embedded systems, sensor interfaces, and low-power devices.

If you need more information or additional details about specific features, let me know!