STM32L071CBT6 Detailed explanation of pin function specifications and circuit principle instructions
The model "STM32L071CBT6" belongs to the STM32 family of microcontrollers, manufactured by STMicroelectronics. It is based on the ARM Cortex-M0+ core and is a part of the STM32L0 series, which is designed for low- Power applications.
The STM32L071CBT6 microcontroller comes in the LQFP-64 package, which means it has 64 pins.
Here’s a detailed explanation of the pin function specifications and the associated circuit principle:
Pin Function Overview for STM32L071CBT6 (LQFP-64 Package)
Pinout Table: Pin No. Pin Name Function Description 1 VSS Ground pin 2 VDD Power supply pin 3 PA13 (SWDIO) Serial Wire Debug Input/Output (SWDIO) for debugging 4 PA14 (SWCLK) Serial Wire Debug Clock (SWCLK) 5 PA15 (JTDI) JTAG Test Data Input (JTDI) 6 PB0 General-purpose input/output (GPIO) 7 PB1 General-purpose input/output (GPIO) 8 PB2 General-purpose input/output (GPIO) 9 PB3 (TIM2_CH2) Timer 2 Channel 2 (PWM or Input Capture) 10 PB4 General-purpose input/output (GPIO) 11 PB5 General-purpose input/output (GPIO) 12 PB6 (I2C1_SCL) I2C1 Serial Clock Line (SCL) 13 PB7 (I2C1_SDA) I2C1 Data Line (SDA) 14 PC13 Push-pull output for external interrupt (EXTI13) 15 PC14 (OSC32_IN) 32.768 kHz External Oscillator Input 16 PC15 (OSC32_OUT) 32.768 kHz External Oscillator Output 17 PD0 (USART2_TX) USART2 Transmit Pin 18 PD1 (USART2_RX) USART2 Receive Pin 19 PD2 (USART2_CK) USART2 Clock Pin 20 PD3 (USART2_CTS) USART2 Clear To Send (CTS) Pin 21 PE0 General-purpose input/output (GPIO) 22 PE1 General-purpose input/output (GPIO) 23 PE2 General-purpose input/output (GPIO) 24 PE3 General-purpose input/output (GPIO) 25 PE4 General-purpose input/output (GPIO) 26 PE5 General-purpose input/output (GPIO) 27 PE6 General-purpose input/output (GPIO) 28 PE7 General-purpose input/output (GPIO) 29 PF0 General-purpose input/output (GPIO) 30 PF1 General-purpose input/output (GPIO) 31 PF2 (TSC) Touch Sensing Input 32 PF3 (TSC) Touch Sensing Input 33 PF4 (TSC) Touch Sensing Input 34 PF5 (TSC) Touch Sensing Input 35 PF6 General-purpose input/output (GPIO) 36 PF7 General-purpose input/output (GPIO) 37 PG0 General-purpose input/output (GPIO) 38 PG1 General-purpose input/output (GPIO) 39 PG2 (TIM3_CH1) Timer 3 Channel 1 (PWM or Input Capture) 40 PG3 (TIM3_CH2) Timer 3 Channel 2 (PWM or Input Capture) 41 PG4 General-purpose input/output (GPIO) 42 PG5 General-purpose input/output (GPIO) 43 PH0 (IRC) Internal RC Oscillator Input (for backup and internal circuits) 44 PH1 (IRC) Internal RC Oscillator Output 45 PH2 General-purpose input/output (GPIO) 46 PH3 General-purpose input/output (GPIO) 47 PH4 General-purpose input/output (GPIO) 48 PH5 General-purpose input/output (GPIO) 49 PH6 General-purpose input/output (GPIO) 50 PH7 General-purpose input/output (GPIO) 51 VSS Ground pin 52 VDD Power supply pin 53 NRST Reset pin 54 VBAT Battery voltage input for RTC 55 PA8 (MCO) Microcontroller Output (MCO) 56 PA9 (USART1_TX) USART1 Transmit Pin 57 PA10 (USART1_RX) USART1 Receive Pin 58 PA11 (USB_DM) USB Data Minus 59 PA12 (USB_DP) USB Data Plus 60 PA0 General-purpose input/output (GPIO) 61 PA1 General-purpose input/output (GPIO) 62 PA2 General-purpose input/output (GPIO) 63 PA3 General-purpose input/output (GPIO) 64 PA4 General-purpose input/output (GPIO)Frequently Asked Questions (FAQ)
What is the STM32L071CBT6 microcontroller? The STM32L071CBT6 is a 32-bit microcontroller from STMicroelectronics, based on the ARM Cortex-M0+ core. It is part of the STM32L0 series designed for low-power applications. How many pins does the STM32L071CBT6 have? The STM32L071CBT6 has 64 pins in an LQFP-64 package. What is the function of PA13 (SWDIO) and PA14 (SWCLK)? PA13 (SWDIO) is used for Serial Wire Debug Input/Output, and PA14 (SWCLK) is the clock pin for debugging. Can I use PA9 and PA10 for serial communication? Yes, PA9 (USART1TX) and PA10 (USART1RX) are used for USART1 transmission and reception. What is the purpose of the NRST pin? The NRST pin is used to reset the microcontroller. What voltage range does the STM32L071CBT6 operate at? The STM32L071CBT6 operates within a voltage range of 1.65V to 3.6V. What are the low-power modes available in STM32L071CBT6? It includes Sleep mode, Stop mode, and Standby mode. Can the STM32L071CBT6 be used in automotive applications? Yes, it is rated for industrial applications, and with its low power consumption, it can be used in automotive electronics. Does STM32L071CBT6 support I2C communication? Yes, it supports I2C communication through pins PB6 (SCL) and PB7 (SDA).What is the function of the VDDA pin?
VDDA is the analog power supply pin, used for powering the analog circuits in the microcontroller.What is the role of the VDD pin?
VDD is the primary power supply pin that powers the digital circuits in the STM32L071CBT6.What is the use of the USB pins PA11 and PA12?
PA11 (USBDM) and PA12 (USBDP) are used for USB data communication (USB data minus and plus).What is the maximum clock frequency of the STM32L071CBT6?
The maximum clock frequency is 32 MHz.How do I configure GPIO pins on STM32L071CBT6?
GPIO pins can be configured via software by setting up the appropriate registers for input, output, and alternate functions.Can the STM32L071CBT6 support PWM?
Yes, the STM32L071CBT6 supports PWM via its timers, such as TIM2, TIM3, etc.Does STM32L071CBT6 support analog-to-digital conversion?
Yes, it includes a 12-bit ADC for analog-to-digital conversion.What is the function of the PA15 (JTDI) pin?
PA15 (JTDI) is used for JTAG Test Data Input, which is for debugging purposes.Can I use PA6 and PA7 as general-purpose GPIO pins?
Yes, PA6 and PA7 are general-purpose GPIOs that can be used for various functions.Does the STM32L071CBT6 have a real-time clock (RTC)?
Yes, the microcontroller supports an RTC with a 32.768 kHz external crystal input.What are the touch sensing capabilities of the STM32L071CBT6?
The STM32L071CBT6 includes capacitive touch sensing capabilities via the TSC (Touch Sensing Controller) pins PF2-PF5.