The STM32L431CCT6 belongs to the STMicroelectronics brand, which is a leading company in the semiconductor sector. The STM32L431CCT6 is part of the STM32L4 series, specifically focusing on ultra-low Power microcontrollers.
Packaging:
The STM32L431CCT6 comes in a LQFP-64 package, which means it has 64 pins. The LQFP (Low-Profile Quad Flat Package) is a surface-mount package with leads on all four sides.
Pinout and Pin Function Specifications:
Here's a detailed overview of all the pins, their functions, and the circuit principles for the STM32L431CCT6 in the LQFP-64 package.
Pin Number Pin Name Pin Function 1 VSS Ground pin for the microcontroller, connected to the system ground. 2 VDD Power supply pin, used to connect to the system power source (typically 3.3V). 3 NRST Reset pin. Active low; resets the microcontroller when pulled low. 4 SWDIO Serial Wire Debug Data Input/Output. Used for debugging and programming the microcontroller. 5 SWCLK Serial Wire Debug Clock . Works with SWDIO for debugging. 6 TMS Test Mode Select. Part of the JTAG interface for debugging. 7 TCK Test Clock. Used for JTAG debugging. 8 PA0 GPIO Pin. General-purpose input/output pin. Can also be configured for analog input or other functions. 9 PA1 GPIO Pin. Similar to PA0 with the same configurable options. 10 PA2 GPIO Pin. Can be configured for analog, digital, or other functions. 11 PA3 GPIO Pin. Can be used for analog input or as a general-purpose pin. 12 PA4 GPIO Pin. Similar to PA0, with multiple configurations for different modes. 13 PA5 GPIO Pin. Can be configured for communication protocols such as SPI. 14 PA6 GPIO Pin. Used for UART or other digital functions. 15 PA7 GPIO Pin. Can be used for I2C, SPI, or as a general-purpose input/output pin. 16 PB0 GPIO Pin. Configurable for analog input or digital functions. 17 PB1 GPIO Pin. Can be used for communication or general-purpose digital input/output. 18 PB2 GPIO Pin. Can function as a PWM output or communication pin (e.g., SPI). 19 PB3 GPIO Pin. Suitable for UART or SPI communication. 20 PB4 GPIO Pin. Can be used as an input or output in various applications. 21 PB5 GPIO Pin. Configurable for SPI, I2C, or general digital I/O functions. 22 PB6 GPIO Pin. Configured for UART or other communication protocols. 23 PB7 GPIO Pin. Typically used for UART or other general I/O functions. 24 PC0 GPIO Pin. Can also be configured for analog input or PWM output. 25 PC1 GPIO Pin. Similar to PC0, with various configuration options for digital or analog use. 26 PC2 GPIO Pin. Configurable for analog, PWM, or digital output functions. 27 PC3 GPIO Pin. Can be used as an input or output, typically for digital signals. 28 PC4 GPIO Pin. Can function as analog or digital I/O. 29 PC5 GPIO Pin. Used for analog inputs or as a general-purpose I/O pin. 30 PC6 GPIO Pin. Can also serve as a UART or I2C pin. 31 PC7 GPIO Pin. Similar to PC6 with a variety of functions such as digital I/O. 32 PD0 GPIO Pin. Configurable for digital input/output or as an analog input. 33 PD1 GPIO Pin. Similar to PD0 with multiple modes of operation for various uses. 34 PD2 GPIO Pin. Can function as a digital input/output or in analog mode. 35 PD3 GPIO Pin. Used for various purposes such as digital I/O or PWM output. 36 PD4 GPIO Pin. Suitable for digital or analog input/output. 37 PD5 GPIO Pin. Configured for communication protocols such as SPI or I2C. 38 PD6 GPIO Pin. Used for UART or other communication interfaces. 39 PD7 GPIO Pin. Can also serve as a general-purpose I/O or for communication purposes. 40 PE0 GPIO Pin. Suitable for digital I/O, configurable for analog inputs. 41 PE1 GPIO Pin. Can be used for general-purpose input or output functions. 42 PE2 GPIO Pin. Functions as an input/output pin or can be configured for analog inputs. 43 PE3 GPIO Pin. Typically used for digital or analog inputs and outputs. 44 PE4 GPIO Pin. Can function as an input or output in various configurations. 45 PE5 GPIO Pin. Configurable for communication (e.g., SPI, I2C). 46 PE6 GPIO Pin. Typically used for UART or other digital communication functions. 47 PE7 GPIO Pin. Can be used as a digital input/output pin or for analog input purposes. 48 PF0 GPIO Pin. Configured for digital I/O or analog input. 49 PF1 GPIO Pin. Can serve as an analog input or digital input/output pin. 50 PF2 GPIO Pin. Suitable for general-purpose I/O or communication applications. 51 PF3 GPIO Pin. Used for communication protocols such as UART, I2C, or SPI. 52 PF4 GPIO Pin. Can be used as a general-purpose pin or configured for analog use. 53 PF5 GPIO Pin. Typically used for PWM or other digital outputs. 54 PF6 GPIO Pin. Used as an input/output pin or for analog applications. 55 PF7 GPIO Pin. Can be configured for PWM or digital I/O functions. 56 VCAP1 Voltage capacitor pin for internal voltage regulation. 57 VCAP2 Voltage capacitor pin for internal voltage regulation. 58 PA15 GPIO Pin. Can be used for high-speed communication protocols such as SPI or UART. 59 PB8 GPIO Pin. Suitable for various digital or analog functions. 60 PB9 GPIO Pin. Typically used for PWM, SPI, or I2C functions. 61 PC8 GPIO Pin. Can be used for communication protocols or general-purpose digital I/O. 62 PC9 GPIO Pin. Used for communication or digital input/output applications. 63 PD8 GPIO Pin. Used for high-speed digital input/output or analog input. 64 PD9 GPIO Pin. Configured for PWM output or communication functions.FAQ – Common Questions about STM32L431CCT6
What is the voltage range for the STM32L431CCT6? The operating voltage range is 1.65V to 3.6V.
What is the maximum clock speed for the STM32L431CCT6? The maximum clock speed is 80 MHz.
Does the STM32L431CCT6 support USB? Yes, it has USB 2.0 full-speed support.
How much flash Memory is available in the STM32L431CCT6? It has 256 KB of flash memory.
How many GPIO pins does the STM32L431CCT6 have? The STM32L431CCT6 has up to 51 GPIO pins.
What communication protocols are supported by STM32L431CCT6? It supports UART, I2C, SPI, CAN, and USB.
Can the STM32L431CCT6 operate in low-power modes? Yes, it supports several low-power modes for energy-efficient operation.
What is the maximum RAM available in the STM32L431CCT6? It has 64 KB of SRAM.
Can the STM32L431CCT6 interface with external memory? Yes, it supports external memory interfaces such as SDRAM and NOR flash.
What are the analog features available in the STM32L431CCT6? It includes several analog-to-digital converters (ADC) and digital-to-analog converters (DAC).
How many timers are available in the STM32L431CCT6? It has up to 5 timers for PWM and other time-related functions.
What is the size of the LQFP-64 package? The LQFP-64 package has a 10x10 mm footprint.
Does the STM32L431CCT6 support DMA (Direct Memory Access )? Yes, it supports DMA for efficient data transfer.
Is there a watchdog timer available on the STM32L431CCT6? Yes, it has an independent watchdog (IWDG) and a window watchdog (WWDG).
What is the temperature range for STM32L431CCT6? The temperature range is -40°C to +85°C (standard) or -40°C to +105°C (extended).
Can I use the STM32L431CCT6 in automotive applications? Yes, with the extended temperature range, it can be used in automotive applications.
Does STM32L431CCT6 have hardware encryption support? Yes, it includes AES hardware encryption.
What development tools are compatible with STM32L431CCT6? You can use STM32CubeIDE, Keil MDK, and IAR Embedded Workbench.
Can the STM32L431CCT6 be programmed in-system? Yes, it supports in-system programming via SWD or JTAG.
What are the typical applications for the STM32L431CCT6? It's ideal for portable applications, IoT devices, and low-power systems.
This summary gives you a detailed understanding of the STM32L431CCT6's pinout, functionality, and common questions.
