STM32L151RCT6 Detailed explanation of pin function specifications and circuit principle instructions

The STM32L151RCT6 is part of the STM32L1 series, produced by STMicroelectronics, a leading semiconductor company. This series is based on ARM Cortex-M3 cores and is designed for low- Power applications, providing an array of peripherals, including multiple communication interface s, analog features, and timers, with a range of power modes to optimize energy consumption.

The STM32L151RCT6 uses the LQFP-64 (Low-profile Quad Flat Package with 64 pins) package, but you may be referring to a 100-pin or 144-pin version as well. Since the model specified is "STM32L151RCT6," it's assumed that you're looking for the 64-pin version.

Here’s a detailed explanation of the STM32L151RCT6’s pinout and functionality:

Pinout and Function List for STM32L151RCT6 (LQFP-64)

(Note: Below are the descriptions for all 64 pins. This is a simplified explanation, and the functions can be configured based on the application, but these are the default assignments.)

Pin No. Pin Name Pin Function Description 1 VSS Ground Ground connection. 2 VDD Power supply Power supply (2.0V to 3.6V). 3 PA13 SWDIO Serial Wire Debug I/O. 4 PA14 SWCLK Serial Wire Debug Clock . 5 PA15 JTDI JTAG Test Data In. 6 PB3 USART2_TX USART2 Transmit. 7 PB4 USART2_RX USART2 Receive. 8 PB5 SPI1_SCK SPI1 Serial Clock. 9 PB6 SPI1_MISO SPI1 Master In Slave Out. 10 PB7 SPI1_MOSI SPI1 Master Out Slave In. 11 PC13 TAMPER Tamper Detection. 12 PC14 LSE_CI External Low-Speed Crystal Input. 13 PC15 LSE_CO External Low-Speed Crystal Output. 14 PD0 USART3_TX USART3 Transmit. 15 PD1 USART3_RX USART3 Receive. 16 PD2 USART3_CK USART3 Clock. 17 PD3 USART3_RTS USART3 Ready to Send. 18 PD4 USART3_CTS USART3 Clear to Send. 19 PD5 SPI2_SCK SPI2 Serial Clock. 20 PD6 SPI2_MISO SPI2 Master In Slave Out. 21 PD7 SPI2_MOSI SPI2 Master Out Slave In. 22 PE0 I2C1_SCL I2C1 Clock Line. 23 PE1 I2C1_SDA I2C1 Data Line. 24 PE2 I2C2_SCL I2C2 Clock Line. 25 PE3 I2C2_SDA I2C2 Data Line. 26 PE4 GPIO General-purpose I/O pin. 27 PE5 GPIO General-purpose I/O pin. 28 PE6 TIM1_CH1N TIM1 Channel 1 Negative. 29 PE7 TIM1_CH1 TIM1 Channel 1. 30 PF0 GPIO General-purpose I/O pin. 31 PF1 GPIO General-purpose I/O pin. 32 PF2 GPIO General-purpose I/O pin. 33 PF3 GPIO General-purpose I/O pin. 34 PF4 GPIO General-purpose I/O pin. 35 PF5 GPIO General-purpose I/O pin. 36 PF6 GPIO General-purpose I/O pin. 37 PF7 GPIO General-purpose I/O pin. 38 PF8 TIM1_CH1 TIM1 Channel 1. 39 PF9 TIM1_CH2 TIM1 Channel 2. 40 PG0 GPIO General-purpose I/O pin. 41 PG1 GPIO General-purpose I/O pin. 42 PG2 GPIO General-purpose I/O pin. 43 PG3 GPIO General-purpose I/O pin. 44 PG4 GPIO General-purpose I/O pin. 45 PG5 GPIO General-purpose I/O pin. 46 PG6 TIM8_CH1N TIM8 Channel 1 Negative. 47 PG7 TIM8_CH1 TIM8 Channel 1. 48 PG8 TIM8_CH2 TIM8 Channel 2. 49 PG9 TIM8_CH3 TIM8 Channel 3. 50 PG10 TIM8_CH4 TIM8 Channel 4. 51 PG11 GPIO General-purpose I/O pin. 52 PG12 GPIO General-purpose I/O pin. 53 PG13 GPIO General-purpose I/O pin. 54 PG14 GPIO General-purpose I/O pin. 55 PG15 GPIO General-purpose I/O pin. 56 VSS Ground Ground connection. 57 VDD Power supply Power supply (2.0V to 3.6V). 58 NRST Reset External Reset. 59 BOOT0 Boot mode select Boot mode selection pin (used to select the boot mode: Flash or System Memory ). 60 VCAP1 capacitor External capacitors for voltage regulator. 61 VCAP2 Capacitor External capacitors for voltage regulator. 62 VREF Reference voltage External reference voltage input. 63 VDDA Analog supply Analog supply voltage. 64 VSSA Analog ground Analog ground.

20 FAQ for STM32L151RCT6:

What is the operating voltage for STM32L151RCT6? The operating voltage range is 2.0V to 3.6V for the STM32L151RCT6. How do I enable the JTAG functionality on STM32L151RCT6? You can enable the JTAG functionality using pins PA13, PA14, PA15 (SWDIO, SWCLK, JTDI). Can I use the STM32L151RCT6 for low-power applications? Yes, it supports several low-power modes, making it ideal for low-power applications. What is the default communication protocol for USART2? The default communication protocol for USART2 is UART, using pins PB3 (TX) and PB4 (RX). What is the maximum clock frequency of the STM32L151RCT6? The maximum clock frequency for STM32L151RCT6 is 32 MHz. How can I use SPI on STM32L151RCT6? You can use SPI on pins PB5 (SCK), PB6 (MISO), and PB7 (MOSI). How do I enable the I2C interface on STM32L151RCT6? I2C can be enabled on pins PE0 (SCL) and PE1 (SDA) for I2C1, and PE2 (SCL) and PE3 (SDA) for I2C2. How can I use ADC on the STM32L151RCT6? You can use the ADC functionality on various pins (e.g., PA0 to PA7, PB0 to PB1) as analog inputs. What is the maximum temperature range for STM32L151RCT6? The maximum temperature range is from -40°C to 85°C for industrial-grade parts. Can STM32L151RCT6 support USB? No, STM32L151RCT6 does not have USB support; for USB functionality, you will need a different STM32 model with USB support. What timer features are available on STM32L151RCT6? The STM32L151RCT6 includes several timers, such as TIM1, TIM2, and TIM3, which support various PWM, input capture, and output compare modes. Does STM32L151RCT6 support DMA? Yes, STM32L151RCT6 supports Direct Memory Access (DMA) for high-speed data transfer. How can I reset STM32L151RCT6? You can reset the STM32L151RCT6 by using the NRST pin or software reset. How is the VREF pin used on STM32L151RCT6? The VREF pin is used for an external reference voltage to the ADC. What is the boot mode selection method for STM32L151RCT6? The boot mode can be selected via the BOOT0 pin, allowing you to choose between booting from system memory or flash memory. What debugging interfaces are available on STM32L151RCT6? The STM32L151RCT6 supports both JTAG and SWD (Serial Wire Debug) interfaces. How do I configure the clock on STM32L151RCT6? The clock configuration can be done through the microcontroller’s internal or external oscillators. What are the GPIO capabilities of STM32L151RCT6? STM32L151RCT6 has flexible GPIO pins with the capability to be configured as input, output, analog, or alternate functions. Can I use STM32L151RCT6 for motor control applications? Yes, it includes advanced timers (such as TIM1) suitable for motor control applications. What power modes does STM32L151RCT6 support? STM32L151RCT6 supports multiple low-power modes, including Sleep, Stop, and Standby modes for power-efficient operation.

Let me know if you need more details or further clarification on any specific points!