STM32L431RCT6 - Ultra-Low-Power Cortex-M4 MCU 80MHz 256KB Flash | STMicroelectronics
MPN: STM32L431RCT6 ✓ Hoạt động| Số lượng | Giá đơn vị | Phụ |
|---|---|---|
| 1 | $14.7273 | $14,73 |
| 10 | $10.6364 | $106,36 |
| 100 | $9.4091 | $940,91 |
| 500 | $9 | $4.500,00 |
| 960 | $8.5909 | $8.247,26 |
STM32L431RCT6 Tóm tắt
A microcontroller (MCU) is a compact integrated circuit designed to govern a specific operation in an embedded system. It contains a processor core, memory, and programmable input/output peripherals. The STM32L431RCT6 belongs to the STM32L4 family, which is part of the broader STM32 portfolio of 32-bit microcontrollers. These MCUs are widely used in industrial, consumer, and IoT applications where power efficiency and processing capability are critical. The Cortex-M4 core with FPU enables efficient digital signal processing and floating-point arithmetic, making it ideal for applications such as motor control, sensor fusion, and audio processing.
Key features of the STM32L431RCT6 include its ultra-low-power modes, which allow it to achieve very low power consumption in standby and sleep modes, extending battery life in portable devices. It also integrates a rich set of peripherals, including multiple USARTs, SPIs, I2Cs, ADCs, DACs, timers, and a real-time clock. The device supports a wide operating voltage range of 1.71V to 3.6V, making it compatible with standard battery chemistries. Additionally, it features a 12-bit ADC with up to 16 channels, a 12-bit DAC, and an operational amplifier, enabling analog signal processing without external components.
From a technical perspective, the STM32L431RCT6 leverages ST's advanced 90nm process technology, which contributes to its low power consumption and high performance. The core runs at up to 80 MHz, delivering 100 DMIPS (Dhrystone 2.1) performance. The device includes a memory protection unit (MPU) and a nested vectored interrupt controller (NVIC) for efficient interrupt handling. It also supports a wide range of communication interfaces, including USB 2.0 full-speed, CAN 2.0B, and SAI (serial audio interface), making it versatile for connectivity applications.
Typical applications for the STM32L431RCT6 include industrial sensors, smart meters, portable medical devices, and IoT nodes. Its low-power characteristics make it particularly well-suited for battery-powered devices that require long operational lifetimes. The device also supports a variety of development tools, including STM32CubeIDE, STM32CubeMX, and the STM32CubeL4 firmware package, which simplifies software development and reduces time-to-market.
When designing with the STM32L431RCT6, it is important to consider the power supply decoupling and PCB layout to ensure stable operation. The device requires a 100nF capacitor on each power pin and a 4.7uF capacitor on the main supply. Additionally, the VDDA pin should be connected to a clean analog supply to minimize noise in analog peripherals. Proper grounding and layout are essential to achieve the specified performance and low-power operation.
Bộ thay thế dễ dàng lắp đặt cho STM32L431RCT6 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với STM32L431RCT6 (cùng hình factor và footprint) — khác nhau ở ADC, Communication Interfaces, DAC, Operating Voltage, Package.
Công cụ so sánh nhanh — Chọn các bộ phận thay thế để so sánh song song:
STM32L431RCT6TR
📋 Tham chiếu thay thế (không có trong danh mục)
STM32L431RBT6
📋 Tham chiếu thay thế (không có trong danh mục)
STM32L431CCU6
📋 Tham chiếu thay thế (không có trong danh mục)
GD32F303RCT6
📋 Tham chiếu thay thế (không có trong danh mục)
APM32F407RCT6
📋 Tham chiếu thay thế (không có trong danh mục)
STM32L431RCT6 Tỷ lệ tối đa & tính chất điện
| Core | ARM Cortex-M4 with FPU |
| Max Clock Frequency | 80 MHz |
| Flash Memory | 256 KB |
| SRAM | 64 KB |
| Hộp | 64-LQFP (10x10 mm) |
| Operating Voltage | 1.71V to 3.6V |
| Nhiệt độ hoạt động | -40C to +85C |
| ADC | 12-bit, up to 16 channels |
| DAC | 12-bit, 2 channels |
| Communication Interfaces | USART, SPI, I2C, USB 2.0 FS, CAN 2.0B, SAI |
| Timers | Multiple 16-bit and 32-bit timers |
| DMA | Yes, with 14 channels |
| Low-Power Modes | Sleep, Low-power run, Low-power sleep, Stop 0/1/2, Standby, Shutdown |
| RoHS | Compliant |
| REACH | Compliant |
| Cấp MSL | 3 |
Cấu hình chân STM32L431RCT6
| Chân 1 | VBAT — Backup battery supply |
| Chân 2 | PC13 — GPIO / RTC tamper |
| Chân 3 | PC14 — GPIO / OSC32_IN |
| Chân 4 | PC15 — GPIO / OSC32_OUT |
| Chân 5 | PF0 — GPIO / OSC_IN |
| Chân 6 | PF1 — GPIO / OSC_OUT |
| Chân 7 | NRST — Reset (active low) |
| Chân 8 | VSSA — Analog ground |
| Chân 9 | VDDA — Analog power supply |
| Chân 10 | PA0 — GPIO / ADC_IN0 |
| Chân 11 | PA1 — GPIO / ADC_IN1 |
| Chân 12 | PA2 — GPIO / USART2_TX |
| Chân 13 | PA3 — GPIO / USART2_RX |
| Chân 14 | PA4 — GPIO / DAC_OUT1 |
| Chân 15 | PA5 — GPIO / DAC_OUT2 |
| Chân 16 | PA6 — GPIO / SPI1_MISO |
| Chân 17 | PA7 — GPIO / SPI1_MOSI |
| Chân 18 | PB0 — GPIO / ADC_IN8 |
| Chân 19 | PB1 — GPIO / ADC_IN9 |
| Chân 20 | PB2 — GPIO / BOOT1 |
| Chân 21 | PB10 — GPIO / I2C2_SCL |
| Chân 22 | PB11 — GPIO / I2C2_SDA |
| Chân 23 | PB12 — GPIO / SPI2_NSS |
| Chân 24 | PB13 — GPIO / SPI2_SCK |
| Chân 25 | PB14 — GPIO / SPI2_MISO |
| Chân 26 | PB15 — GPIO / SPI2_MOSI |
| Chân 27 | PC6 — GPIO / TIM3_CH1 |
| Chân 28 | PC7 — GPIO / TIM3_CH2 |
| Chân 29 | PC8 — GPIO / TIM3_CH3 |
| Chân 30 | PC9 — GPIO / TIM3_CH4 |
| Chân 31 | PA8 — GPIO / TIM1_CH1 |
| Chân 32 | PA9 — GPIO / USART1_TX |
| Chân 33 | PA10 — GPIO / USART1_RX |
| Chân 34 | PA11 — GPIO / USB_DM |
| Chân 35 | PA12 — GPIO / USB_DP |
| Chân 36 | PA13 — SWDIO |
| Chân 37 | PA14 — SWCLK |
| Chân 38 | PA15 — GPIO / JTDI |
| Chân 39 | PB3 — GPIO / JTDO |
| Chân 40 | PB4 — GPIO / NJTRST |
| Chân 41 | PB5 — GPIO / I2C1_SMBA |
| Chân 42 | PB6 — GPIO / I2C1_SCL |
| Chân 43 | PB7 — GPIO / I2C1_SDA |
| Chân 44 | BOOT0 — Boot mode selection |
| Chân 45 | PB8 — GPIO / CAN_RX |
| Chân 46 | PB9 — GPIO / CAN_TX |
| Chân 47 | VSS — Ground |
| Chân 48 | VDD — Power supply |
| Chân 49 | PC10 — GPIO / USART3_TX |
| Chân 50 | PC11 — GPIO / USART3_RX |
| Chân 51 | PC12 — GPIO / USART3_CK |
| Chân 52 | PD2 — GPIO / TIM3_ETR |
| Chân 53 | PC0 — GPIO / ADC_IN10 |
| Chân 54 | PC1 — GPIO / ADC_IN11 |
| Chân 55 | PC2 — GPIO / ADC_IN12 |
| Chân 56 | PC3 — GPIO / ADC_IN13 |
| Chân 57 | PC4 — GPIO / ADC_IN14 |
| Chân 58 | PC5 — GPIO / ADC_IN15 |
| Chân 59 | PB8 — GPIO / CAN_RX |
| Chân 60 | PB9 — GPIO / CAN_TX |
| Chân 61 | VSS — Ground |
| Chân 62 | VDD — Power supply |
| Chân 63 | PD0 — GPIO / OSC_IN |
| Chân 64 | PD1 — GPIO / OSC_OUT |
Ứng dụng tiêu biểu
STM32L431RCT6 phù hợp cho 6 Áp dụngs: Industrial Sensors, Smart Meters, Portable Medical Devices, IoT Nodes, Audio Processing, Motor Control.
Industrial Sensors
The STM32L431RCT6 is ideal for industrial sensors due to its ultra-low-power operation and rich analog peripherals. Its 12-bit ADC with up to 16 channels allows precise measurement of sensor signals, while the low-power modes enable battery-powered operation for remote monitoring. The device's 80 MHz Cortex-M4 core can handle sensor fusion algorithms, and its multiple communication interfaces (UART, SPI, I2C) facilitate data transmission to central controllers. In a typical industrial sensor node, the STM32L431RCT6 samples temperature, pressure, or vibration data, processes it locally, and transmits the results wirelessly or over a wired bus. The device's wide operating voltage range (1.71V to 3.6V) ensures compatibility with various power sources, and its robust design meets industrial temperature requirements (-40C to +85C).
Được đề xuất
Smart Meters
The STM32L431RCT6 is well-suited for smart metering applications, including electricity, water, and gas meters. Its ultra-low-power modes allow the device to operate for years on a single battery, while its 256 KB Flash provides ample storage for metering firmware and data logging. The device's multiple timers and communication interfaces (UART, SPI, I2C) enable accurate measurement and remote data transmission. In a smart electricity meter, the STM32L431RCT6 reads current and voltage sensors, calculates energy consumption, and communicates via a wireless module or power line communication. The device's 12-bit ADC ensures accurate measurement, and its low-power RTC maintains timekeeping even in standby mode. The wide operating voltage range supports various battery chemistries, and the device's industrial temperature range ensures reliable operation in outdoor environments.
Được đề xuất
Portable Medical Devices
The STM32L431RCT6 is an excellent choice for portable medical devices such as glucose monitors, pulse oximeters, and wearable health trackers. Its ultra-low-power consumption extends battery life, which is critical for continuous monitoring. The device's analog peripherals, including a 12-bit ADC and operational amplifier, enable precise biosignal acquisition. The Cortex-M4 core with FPU can run signal processing algorithms for heart rate or blood oxygen level calculation. In a pulse oximeter, the STM32L431RCT6 controls an LED driver, reads photodiode signals, and calculates SpO2 and heart rate. The device's small LQFP64 package fits compact designs, and its multiple communication interfaces allow data transfer to a smartphone via Bluetooth. The device's wide voltage range supports coin cell batteries, and its low-power modes ensure minimal current draw between measurements.
Được đề xuất
IoT Nodes
The STM32L431RCT6 is a popular choice for IoT nodes due to its balance of performance and power efficiency. Its 80 MHz Cortex-M4 core can handle protocol stacks for Wi-Fi, Bluetooth, or LoRa, while its low-power modes allow battery-powered operation for months or years. The device's rich set of communication interfaces (USART, SPI, I2C, USB) enables connection to various sensors and wireless modules. In a typical IoT node, the STM32L431RCT6 collects sensor data, processes it, and transmits it to a gateway or cloud server. The device's 256 KB Flash provides ample space for application code and data logging, and its 64 KB SRAM supports complex applications. The device's wide operating voltage range and industrial temperature range make it suitable for outdoor deployments. Its low-power RTC and wake-up pins allow the device to sleep most of the time, waking only to take measurements and transmit data.
Được đề xuất
Audio Processing
The STM32L431RCT6 is suitable for audio processing applications such as voice-controlled devices, audio recorders, and sound recognition systems. Its Cortex-M4 core with FPU provides sufficient processing power for audio codecs and DSP algorithms, while its SAI (serial audio interface) enables direct connection to audio codecs. The device's 12-bit ADC and DAC can be used for analog audio input and output. In a voice-controlled device, the STM32L431RCT6 captures audio from a microphone, processes it for keyword detection, and triggers actions. The device's low-power modes allow always-on listening with minimal power consumption. Its 256 KB Flash can store audio samples or recognition models, and its 64 KB SRAM supports real-time processing. The device's wide voltage range and small package make it suitable for portable audio devices.
Được đề xuất
Motor Control
The STM32L431RCT6 is well-suited for motor control applications, including brushless DC (BLDC) motors, stepper motors, and servo motors. Its multiple timers with PWM outputs can generate precise control signals, and its 12-bit ADC can measure motor currents and voltages. The Cortex-M4 core with FPU can run complex control algorithms such as field-oriented control (FOC) for BLDC motors. In a typical motor control system, the STM32L431RCT6 reads position and current sensors, computes the control output, and drives the motor driver via PWM. The device's low-power modes are useful for battery-powered motor applications, and its wide voltage range supports various motor supply voltages. The device's industrial temperature range ensures reliable operation in harsh environments. Its rich set of communication interfaces allows connection to a host controller for parameter tuning and monitoring.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho STM32L431RCT6 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | STM32L431RCT6TR | STM32L431RBT6 | GD32F303RCT6 | APM32F407RCT6 |
|---|---|---|---|---|---|
| Package | 64-LQFP (10x10 mm) | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same | 64-LQFP (10x10 mm) - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | GigaDevice | Geehy |
| Core | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU |
| Max Clock Frequency | 80 MHz | 80 MHz | 80 MHz | 120 MHz | 168 MHz |
| Flash Memory | 256 KB | 256 KB | 128 KB | 256 KB | 256 KB |
| SRAM | 64 KB | 64 KB | 64 KB | 48 KB | 128 KB |
| Operating Voltage | 1.71V to 3.6V | 1.71V to 3.6V | 1.71V to 3.6V | 2.6V to 3.6V | 2.0V to 3.6V |
| Low-Power Modes | Sleep, Low-power run, Low-power sleep, Stop 0/1/2, Standby, Shutdown | Same as this product | Same as this product | Sleep, Stop, Standby | Sleep, Stop, Standby |
| Price (1 unit) | $4.85 | $4.85 | $4.20 | $2.50 | $3.00 |
Bảo phân biệt quan trọng
- Ultra-low-power consumption with multiple low-power modes (vsGD32F303RCT6)
- Wide operating voltage range (1.71V to 3.6V) (vsGD32F303RCT6)
- Rich analog peripherals (12-bit ADC, 12-bit DAC, op-amp) (vsAPM32F407RCT6)
Ghi chú thiết kế
Ensure proper decoupling: place a 100nF capacitor on each VDD pin and a 4.7uF capacitor on the main supply. The VDDA pin should be connected to a clean analog supply, with a 1uF capacitor to ground. For battery-powered designs, use the low-power modes effectively to minimize current consumption.
For the LQFP64 package, ensure adequate copper pour for thermal dissipation. The exposed pad (if present) should be soldered to a ground plane. Keep high-speed traces short and use proper grounding to minimize EMI. Follow ST's layout guidelines for the STM32L4 series.
Avoid exceeding the absolute maximum ratings, especially on VDDA and VBAT. Ensure the BOOT0 pin is correctly configured to select the desired boot mode. When using the ADC, ensure the sampling time is sufficient for the source impedance. Also, be aware of the device's power-on reset requirements.
Thông tin tuân thủ
RoHS and REACH compliant per distributor listings. Not AEC-Q100 qualified. MSL level 3.
