The STM32L476RGT6 is a microcontroller from STMicroelectronics, belonging to the STM32L4 series. The STM32L476RGT6 features a 100-pin LQFP (Low-Profile Quad Flat Package) and offers a wide variety of peripherals and functionalities. Below is the detailed explanation of the pin function specifications, the circuit principle, and instructions.
Package Type:
STM32L476RGT6 has an LQFP-100 package (100 pins in total).
Pin Function Table:
The STM32L476RGT6 comes with a total of 100 pins. Here's a detailed description of each pin's function:
Pin Number Pin Name Pin Function Description 1 VSS Ground pin for the microcontroller. 2 VDD Power supply pin (3.3V). 3 VDDA Analog power supply for the ADC and DAC module s. 4 VSSA Ground for the analog section. 5 NRST External reset input (active low). 6 PA0 GPIO input/output, can also be used as an ADC input. 7 PA1 GPIO input/output, can also be used as an ADC input. 8 PA2 GPIO input/output, can also be used as a UART TX pin. 9 PA3 GPIO input/output, can also be used as a UART RX pin. 10 PA4 GPIO input/output, can also be used as an SPI/USART chip select. 11 PA5 GPIO input/output, can also be used as an SPI clock. 12 PA6 GPIO input/output, can also be used as a USART RX pin. 13 PA7 GPIO input/output, can also be used as a USART TX pin. 14 PA8 GPIO input/output, can also be used as an external interrupt pin. 15 PA9 GPIO input/output, can also be used as an external interrupt pin. 16 PA10 GPIO input/output, can also be used as an external interrupt pin. 17 PA11 GPIO input/output, can also be used for CAN bus. 18 PA12 GPIO input/output, can also be used for USB D- data line. 19 PA13 GPIO input/output, can also be used for USB D+ data line. 20 PA14 GPIO input/output, can also be used for the SWDIO pin (debugging). 21 PA15 GPIO input/output, can also be used for the SWCLK pin (debugging). 22 PB0 GPIO input/output, can also be used for an external interrupt. 23 PB1 GPIO input/output, can also be used for an external interrupt. 24 PB2 GPIO input/output, can also be used as a PWM output. 25 PB3 GPIO input/output, can also be used for SPI. 26 PB4 GPIO input/output, can also be used for SPI. 27 PB5 GPIO input/output, can also be used as an SPI clock. 28 PB6 GPIO input/output, can also be used as a UART TX pin. 29 PB7 GPIO input/output, can also be used as a UART RX pin. 30 PB8 GPIO input/output, can also be used for I2C SDA. 31 PB9 GPIO input/output, can also be used for I2C SCL. 32 PB10 GPIO input/output, can also be used for CAN RX. 33 PB11 GPIO input/output, can also be used for CAN TX. 34 PB12 GPIO input/output, can also be used for SPI. 35 PB13 GPIO input/output, can also be used as an external interrupt. 36 PB14 GPIO input/output, can also be used for SPI. 37 PB15 GPIO input/output, can also be used as a PWM output. 38 PC13 GPIO input/output, can also be used as an external interrupt. 39 PC14 GPIO input/output, can also be used for the RTC or external clock. 40 PC15 GPIO input/output, can also be used for an external clock. 41 PD0 GPIO input/output, can also be used for external interrupts. 42 PD1 GPIO input/output, can also be used for external interrupts. 43 PD2 GPIO input/output, can also be used for external interrupts. 44 PD3 GPIO input/output, can also be used for external interrupts. 45 PD4 GPIO input/output, can also be used for external interrupts. 46 PD5 GPIO input/output, can also be used for external interrupts. 47 PD6 GPIO input/output, can also be used for external interrupts. 48 PD7 GPIO input/output, can also be used for external interrupts. 49 PD8 GPIO input/output, can also be used for external interrupts. 50 PD9 GPIO input/output, can also be used for external interrupts. 51 PD10 GPIO input/output, can also be used for external interrupts. 52 PD11 GPIO input/output, can also be used for external interrupts. 53 PD12 GPIO input/output, can also be used for external interrupts. 54 PD13 GPIO input/output, can also be used for external interrupts. 55 PD14 GPIO input/output, can also be used for external interrupts. 56 PD15 GPIO input/output, can also be used for external interrupts.Circuit Principle and Usage:
VSS, VDD, VDDA, VSSA: These pins are used for power supply and ground. VDD powers the microcontroller, while VSSA and VDDA are specifically for the analog section (e.g., ADC, DAC). NRST: The external reset input pin (active low) allows a user to reset the MCU manually by pulling this pin low. GPIO Pins (PAx, PBx, PCx, PDx): These are general-purpose input/output pins that can serve multiple purposes depending on the configuration, such as ADC inputs, USART, SPI, I2C, PWM outputs, and more. Analog Pins: The STM32L476RGT6 includes multiple analog pins that can be connected to the ADC and DAC modules. External Interrupt Pins: These are pins that can be used to trigger interrupts from external events. USB Pins: PA12 (D-) and PA13 (D+) are used for USB communication. Debugging Pins: PA14 and PA15 are used for Serial Wire Debug (SWD) interface , which is used for debugging purposes.FAQ - 20 Common Questions:
What is the maximum clock frequency of the STM32L476RGT6? The maximum clock frequency is 80 MHz.
What is the operating voltage range of STM32L476RGT6? It operates within a voltage range of 1.65V to 3.6V.
Does the STM32L476RGT6 support USB communication? Yes, it supports full-speed USB 2.0 communication.
How many ADC channels are supported? The STM32L476RGT6 supports 16 ADC channels.
What are the different communication interfaces available on the STM32L476RGT6? It supports UART, SPI, I2C, CAN, and USB.
Is there built-in flash Memory ? Yes, the STM32L476RGT6 includes 512KB of flash memory.
Can STM32L476RGT6 be used in low-power applications? Yes, the STM32L476RGT6 is optimized for low-power consumption with multiple low-power modes.
What type of package does the STM32L476RGT6 come in? It comes in a 100-pin LQFP package.
What is the temperature range for STM32L476RGT6? It operates within a temperature range of -40°C to 85°C.
How much RAM does STM32L476RGT6 have? It has 128KB of SRAM.
Can I use STM32L476RGT6 in industrial applications? Yes, it is suitable for industrial and automotive applications due to its robustness.
Is STM32L476RGT6 compatible with Arduino? STM32L476RGT6 is compatible with the STM32CubeIDE and other development environments, but not directly with Arduino IDE without modifications.
Does STM32L476RGT6 have DMA support? Yes, it has Direct Memory Access (DMA) support for peripherals.
Can STM32L476RGT6 be used for audio processing? Yes, it supports audio applications with its DAC, ADC, and communication peripherals.
What security features does STM32L476RGT6 offer? It features hardware cryptographic accelerators (AES, SHA-1, SHA-2).
How can I debug my application on STM32L476RGT6? You can use the SWD (Serial Wire Debug) interface for debugging.
What timers are available on STM32L476RGT6? The microcontroller has advanced timers, general-purpose timers, and basic timers.
Does STM32L476RGT6 support RTOS? Yes, STM32L476RGT6 supports Real-Time Operating Systems (RTOS) such as FreeRTOS.
Can I use STM32L476RGT6 with I2C devices? Yes, it supports multiple I2C buses.
Is STM32L476RGT6 suitable for motor control? Yes, it has features like PWM outputs and timers suitable for motor control.
This concludes the detailed pin function description, usage guidelines, and FAQ for STM32L476RGT6.
