STM32L476RCT6 Detailed explanation of pin function specifications and circuit principle instructions
The STM32L476RCT6 is part of the STM32 family, specifically a microcontroller from the STM32L4 series, developed by STMicroelectronics. The STM32L476RCT6 is designed to be energy-efficient, ideal for applications requiring low Power consumption, while also offering robust processing power and a range of Communication interface s. Below is a detailed explanation of the pin functions, packaging, and circuit principles, including a full pinout listing, function description, and frequently asked questions (FAQs) about the STM32L476RCT6.
Pin Functions and Pinout
The STM32L476RCT6 microcontroller comes in a LQFP (Low-profile Quad Flat Package) with 100 pins. Below is a list of all 100 pins and their respective functions, detailed for the device.
Pinout Table for STM32L476RCT6 (100 Pins) Pin Number Pin Name Function Description 1 VSS Ground Pin 2 VDD Power supply (3.3V or 5V) 3 NRST External Reset Input 4 SWDIO Serial Wire Debug Data Input/Output 5 SWCLK Serial Wire Debug Clock Input 6 TMS Trace Match Input 7 TDI Test Data In 8 TDO Test Data Out 9 PA0 GPIO, CAN RX 10 PA1 GPIO, CAN TX 11 PA2 GPIO, USART2 TX 12 PA3 GPIO, USART2 RX 13 PA4 GPIO, SPI1 SS 14 PA5 GPIO, SPI1 SCK 15 PA6 GPIO, SPI1 MISO 16 PA7 GPIO, SPI1 MOSI 17 PB0 GPIO, TIM3 CH3 18 PB1 GPIO, TIM3 CH4 19 PB2 GPIO, USART3 TX 20 PB3 GPIO, USART3 RX 21 PB4 GPIO, I2C1 SDA 22 PB5 GPIO, I2C1 SCL 23 PB6 GPIO, SPI2 MISO 24 PB7 GPIO, SPI2 MOSI 25 PB8 GPIO, I2C1 SCL 26 PB9 GPIO, I2C1 SDA 27 PC0 GPIO, USART3 CTS 28 PC1 GPIO, USART3 RTS 29 PC2 GPIO, TIM3 CH1 30 PC3 GPIO, TIM3 CH2 31 PC4 GPIO, I2C2 SDA 32 PC5 GPIO, I2C2 SCL 33 PC6 GPIO, USART1 TX 34 PC7 GPIO, USART1 RX 35 PC8 GPIO, SPI1 SS 36 PC9 GPIO, SPI1 SCK 37 PD0 GPIO, SPI1 MISO 38 PD1 GPIO, SPI1 MOSI 39 PD2 GPIO, USART2 TX 40 PD3 GPIO, USART2 RX 41 PD4 GPIO, TIM2 CH1 42 PD5 GPIO, TIM2 CH2 43 PD6 GPIO, TIM2 CH3 44 PD7 GPIO, TIM2 CH4 45 PE0 GPIO, SPI3 MISO 46 PE1 GPIO, SPI3 MOSI 47 PE2 GPIO, SPI3 SCK 48 PE3 GPIO, SPI3 SS 49 PE4 GPIO, I2C3 SDA 50 PE5 GPIO, I2C3 SCL 51 PE6 GPIO, USART1 CTS 52 PE7 GPIO, USART1 RTS 53 PE8 GPIO, TIM1 CH1 54 PE9 GPIO, TIM1 CH2 55 PE10 GPIO, TIM1 CH3 56 PE11 GPIO, TIM1 CH4 57 PE12 GPIO, ADC1 IN12 58 PE13 GPIO, ADC1 IN13 59 PE14 GPIO, ADC1 IN14 60 PE15 GPIO, ADC1 IN15 61 PF0 GPIO, ADC2 IN0 62 PF1 GPIO, ADC2 IN1 63 PF2 GPIO, ADC2 IN2 64 PF3 GPIO, ADC2 IN3 65 PF4 GPIO, ADC2 IN4 66 PF5 GPIO, ADC2 IN5 67 PF6 GPIO, ADC2 IN6 68 PF7 GPIO, ADC2 IN7 69 PF8 GPIO, ADC2 IN8 70 PF9 GPIO, ADC2 IN9 71 PF10 GPIO, DAC1 OUT 72 PF11 GPIO, DAC2 OUT 73 PF12 GPIO, SPI4 MISO 74 PF13 GPIO, SPI4 MOSI 75 PF14 GPIO, SPI4 SCK 76 PF15 GPIO, SPI4 SS 77 PG0 GPIO, I2C4 SDA 78 PG1 GPIO, I2C4 SCL 79 PG2 GPIO, USART1 TX 80 PG3 GPIO, USART1 RX 81 PG4 GPIO, TIM8 CH1 82 PG5 GPIO, TIM8 CH2 83 PG6 GPIO, TIM8 CH3 84 PG7 GPIO, TIM8 CH4 85 PG8 GPIO, ADC3 IN0 86 PG9 GPIO, ADC3 IN1 87 PG10 GPIO, ADC3 IN2 88 PG11 GPIO, ADC3 IN3 89 PG12 GPIO, ADC3 IN4 90 PG13 GPIO, ADC3 IN5 91 PG14 GPIO, ADC3 IN6 92 PG15 GPIO, ADC3 IN7 93 VSS Ground Pin 94 VDD Power supply 95 NC Not connected 96 NC Not connected 97 VSS Ground Pin 98 VDD Power supply 99 NRST External Reset 100 VSS Ground Pin Pin Function Categories Power Pins: VDD, VSS Ground Pins: VSS Reset Pins: NRST Communication Pins: UART, SPI, I2C, CAN Analog Pins: ADC, DAC Timers: TIM, PWM output Other Functions: GPIO, External interruptCommon FAQs
Below are 20 frequently asked questions regarding the STM32L476RCT6.
Q: What is the operating voltage for STM32L476RCT6? A: The STM32L476RCT6 operates at a voltage range of 1.8V to 3.6V, typical 3.3V.
Q: What is the frequency range of the STM32L476RCT6? A: The maximum frequency is 80 MHz, making it suitable for applications requiring moderate processing power.
Q: Does the STM32L476RCT6 support multiple communication protocols? A: Yes, it supports multiple protocols such as I2C, SPI, UART, CAN, and USB.
Q: How many ADC channels are available on the STM32L476RCT6? A: The device has up to 24 ADC channels.
Q: Can I use STM32L476RCT6 in low-power applications? A: Yes, the STM32L476RCT6 is designed for low-power applications with several sleep and low-power modes.
Q: What is the maximum clock speed for STM32L476RCT6? A: The maximum clock speed is 80 MHz.
Q: Does the STM32L476RCT6 have built-in DAC? A: Yes, it has two 12-bit DAC channels.
Q: Can the STM32L476RCT6 interface with external memory? A: Yes, it supports external memory interfaces like SRAM and NOR/NAND Flash.
Q: How much flash memory does STM32L476RCT6 have? A: It has 512 KB of flash memory.
Q: How much RAM does STM32L476RCT6 include? A: It has 128 KB of SRAM.
Q: What is the package type of STM32L476RCT6? A: The STM32L476RCT6 comes in a 100-pin LQFP package.
Q: Does the STM32L476RCT6 support USB connectivity? A: Yes, it supports full-speed USB 2.0.
Q: How many timers are available on STM32L476RCT6? A: It has up to 14 timers, including general-purpose, advanced-control, and basic timers.
Q: Is there support for real-time clock on STM32L476RCT6? A: Yes, the microcontroller has an integrated RTC.
Q: What is the maximum resolution for PWM on STM32L476RCT6? A: The maximum resolution for PWM is 16-bit.
Q: Does STM32L476RCT6 have a watchdog timer? A: Yes, it includes both independent and window watchdog timers.
Q: Can STM32L476RCT6 interface with displays? A: Yes, it can interface with various types of displays via SPI, I2C, or parallel interfaces.
Q: What temperature range can the STM32L476RCT6 operate under? A: It can operate from -40°C to +85°C, or -40°C to +105°C in some configurations.
Q: Can STM32L476RCT6 be programmed with external devices? A: Yes, it supports programming via SWD, JTAG, or USART bootloaders.
Q: How do I perform firmware updates on STM32L476RCT6? A: Firmware updates can be performed via USB, USART, or CAN using the built-in bootloader or external programmers.
This detailed guide provides the pinout and answers to key questions regarding STM32L476RCT6. For specific applications and configurations, refer to the official datasheet and reference manual provided by STMicroelectronics.
