STM32L433RCT6 - Ultra-Low-Power ARM Cortex-M4 MCU | STMicroelectronics
N.º da peça: STM32L433RCT6 ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $8.5 | $8,50 |
| 10 | $7.65 | $76,50 |
| 100 | $6.8 | $680,00 |
| 500 | $6.12 | $3.060,00 |
| 1.000 | $5.44 | $5.440,00 |
STM32L433RCT6 Visão geral
What is an ARM Cortex-M4 microcontroller? It is a 32-bit processor core designed for embedded systems, offering a balance of performance, power efficiency, and rich peripheral integration. The Cortex-M4 includes a floating-point unit (FPU) and DSP instructions, making it suitable for signal processing and control applications. In the system hierarchy, a microcontroller (MCU) integrates a processor core, memory, and programmable peripherals on a single chip, enabling standalone operation in embedded designs.
Key features of the STM32L433RCT6 include an ultra-low-power mode with current consumption as low as 100 nA in standby mode, a 12-bit ADC with hardware oversampling, a 12-bit DAC, multiple communication interfaces (USART, SPI, I2C, USB), and a real-time clock (RTC). The device also integrates a flexible power management unit with multiple low-power modes, including Sleep, Low-power Run, and Stop modes, allowing designers to optimize energy consumption for their specific application.
Technically, the STM32L433RCT6 is built on ST's advanced 40 nm process technology, which contributes to its low power consumption. The Cortex-M4 core with FPU accelerates mathematical computations, while the ART Accelerator enables zero-wait-state execution from flash memory, improving overall system performance. The device supports a wide operating voltage range from 1.71 V to 3.6 V, making it compatible with standard battery chemistries.
Typical applications include smart meters, wearable devices, medical monitoring equipment, industrial sensors, and IoT nodes. Its ultra-low-power features make it ideal for battery-powered devices that require long operational lifetimes, such as wireless sensor networks and portable health monitors.
When designing with this MCU, careful attention should be paid to power supply decoupling and PCB layout to minimize noise and ensure reliable operation. The device's multiple low-power modes require proper configuration of wake-up sources and clock sources to achieve optimal energy savings.
Alternativas drop-in para STM32L433RCT6 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com STM32L433RCT6 (mesmo formato e footprint) — diferindo em Package, ADC, DAC, SRAM, Communication Interfaces.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
STM32L433RCT6TR
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
STM32L433RCT6P
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
STM32L433RCT6Q
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
STM32L432RCT6
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
STM32L431RCT6
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$8.5909 / unidade
Ver ficha técnica →LPC845
⚡ Mesmo encapsulamento ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
RA2A1
⚡ Mesmo encapsulamento ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
STM32L433RCT6 Classificações máximas e características elétricas
| Core | ARM Cortex-M4 with FPU |
| Maximum Frequency | 80 MHz |
| Flash Memory | 256 KB |
| SRAM | 64 KB |
| Encapsulamento | LQFP64 |
| Operating Voltage | 1.71 V to 3.6 V |
| Standby Current | 100 nA |
| ADC | 12-bit with hardware oversampling |
| DAC | 12-bit |
| Communication Interfaces | USART, SPI, I2C, USB |
| Real-Time Clock | Yes |
| Process Technology | 40 nm |
| Temperatura de operação | -40C to +85C |
| Tipo de montagem | Surface Mount |
| Status RoHS | Compliant |
Configuração de pinos do STM32L433RCT6
| Pino 1 | VBAT — Battery backup supply for RTC |
| Pino 2 | PC14 — GPIO / OSC32_IN |
| Pino 3 | PC15 — GPIO / OSC32_OUT |
| Pino 4 | PF0 — GPIO / OSC_IN |
| Pino 5 | PF1 — GPIO / OSC_OUT |
| Pino 6 | NRST — Reset (active low) |
| Pino 7 | PC0 — GPIO / ADC_IN10 |
| Pino 8 | PC1 — GPIO / ADC_IN11 |
| Pino 9 | PC2 — GPIO / ADC_IN12 |
| Pino 10 | PC3 — GPIO / ADC_IN13 |
| Pino 11 | VDD — Digital power supply |
| Pino 12 | VSS — Ground |
| Pino 13 | PC4 — GPIO / ADC_IN14 |
| Pino 14 | PC5 — GPIO / ADC_IN15 |
| Pino 15 | PB0 — GPIO / ADC_IN8 |
| Pino 16 | PB1 — GPIO / ADC_IN9 |
| Pino 17 | PB2 — GPIO / BOOT1 |
| Pino 18 | PB10 — GPIO / I2C2_SCL |
| Pino 19 | PB11 — GPIO / I2C2_SDA |
| Pino 20 | VDD — Digital power supply |
| Pino 21 | VSS — Ground |
| Pino 22 | PB12 — GPIO / SPI2_NSS |
| Pino 23 | PB13 — GPIO / SPI2_SCK |
| Pino 24 | PB14 — GPIO / SPI2_MISO |
| Pino 25 | PB15 — GPIO / SPI2_MOSI |
| Pino 26 | PC6 — GPIO / USART6_TX |
| Pino 27 | PC7 — GPIO / USART6_RX |
| Pino 28 | PC8 — GPIO / USART6_CK |
| Pino 29 | PC9 — GPIO / USART6_CTS |
| Pino 30 | PA0 — GPIO / ADC_IN0 / WKUP1 |
| Pino 31 | PA1 — GPIO / ADC_IN1 |
| Pino 32 | PA2 — GPIO / ADC_IN2 / USART2_TX |
| Pino 33 | PA3 — GPIO / ADC_IN3 / USART2_RX |
| Pino 34 | VDD — Digital power supply |
| Pino 35 | VSS — Ground |
| Pino 36 | PA4 — GPIO / ADC_IN4 / DAC_OUT1 |
| Pino 37 | PA5 — GPIO / ADC_IN5 / DAC_OUT2 |
| Pino 38 | PA6 — GPIO / ADC_IN6 |
| Pino 39 | PA7 — GPIO / ADC_IN7 |
| Pino 40 | PC10 — GPIO / USART4_TX |
| Pino 41 | PC11 — GPIO / USART4_RX |
| Pino 42 | PC12 — GPIO / USART5_TX |
| Pino 43 | PD2 — GPIO / USART5_RX |
| Pino 44 | PB3 — GPIO / SPI1_SCK |
| Pino 45 | PB4 — GPIO / SPI1_MISO |
| Pino 46 | PB5 — GPIO / SPI1_MOSI |
| Pino 47 | PB6 — GPIO / I2C1_SCL |
| Pino 48 | PB7 — GPIO / I2C1_SDA |
| Pino 49 | BOOT0 — Boot mode selection |
| Pino 50 | PB8 — GPIO / I2C1_SCL |
| Pino 51 | PB9 — GPIO / I2C1_SDA |
| Pino 52 | VDD — Digital power supply |
| Pino 53 | VSS — Ground |
| Pino 54 | PA8 — GPIO / USB_OTG_FS_SOF |
| Pino 55 | PA9 — GPIO / USB_OTG_FS_VBUS |
| Pino 56 | PA10 — GPIO / USB_OTG_FS_ID |
| Pino 57 | PA11 — GPIO / USB_OTG_FS_DM |
| Pino 58 | PA12 — GPIO / USB_OTG_FS_DP |
| Pino 59 | PA13 — GPIO / SWDIO |
| Pino 60 | PA14 — GPIO / SWCLK |
| Pino 61 | PA15 — GPIO / JTDI |
| Pino 62 | PB3 — GPIO / JTDO |
| Pino 63 | PB4 — GPIO / NJTRST |
| Pino 64 | VDD — Digital power supply |
Aplicações típicas
STM32L433RCT6 é adequado para 6 aplicaçãos: Smart Meters, Wearable Devices, Medical Monitoring Equipment, Industrial Sensors, IoT Nodes, Portable Health Monitors.
Smart Meters
The STM32L433RCT6 is ideal for smart meters due to its ultra-low power consumption and rich analog peripherals. Its 12-bit ADC with hardware oversampling enables accurate energy measurement, while the low-power modes extend battery life. The device can operate for years on a single battery, making it perfect for remote metering applications. The Cortex-M4 core with FPU handles complex metering algorithms efficiently, and the multiple communication interfaces (USART, SPI, I2C) allow connectivity with communication modules for data transmission. The wide operating voltage range (1.71 V to 3.6 V) ensures compatibility with various battery chemistries, and the 256 KB flash provides ample storage for metering data and firmware updates.
Recomendado
Wearable Devices
The STM32L433RCT6 is well-suited for wearable devices such as fitness trackers and smartwatches. Its ultra-low power consumption (100 nA standby) allows extended battery life, which is critical for wearables. The Cortex-M4 core with FPU enables efficient processing of sensor data, while the 12-bit ADC and DAC support analog sensor interfaces. The device's small LQFP64 package and wide operating voltage range make it easy to integrate into compact designs. The multiple low-power modes (Sleep, Low-power Run, Stop) allow the MCU to conserve energy when not actively processing, and the RTC enables timekeeping with minimal power draw. The USB interface supports charging and data transfer, and the SPI/I2C interfaces connect to sensors like accelerometers and heart rate monitors.
Recomendado
Medical Monitoring Equipment
The STM32L433RCT6 is suitable for medical monitoring devices such as portable ECG monitors and glucose meters. Its low power consumption ensures long battery life for portable devices, and the high-performance Cortex-M4 core with FPU handles real-time signal processing. The 12-bit ADC with oversampling provides high-resolution data acquisition for biosignals, and the DAC can generate analog output for stimulation or calibration. The device's reliability and wide operating temperature range (-40C to +85C) make it suitable for medical environments. The multiple communication interfaces (USART, SPI, I2C, USB) allow data transfer to external displays or computers, and the 256 KB flash provides ample storage for patient data and firmware. The RTC enables accurate time-stamping of medical events.
Recomendado
Industrial Sensors
The STM32L433RCT6 is ideal for industrial sensors that require low power and high reliability. Its ultra-low power modes allow battery-powered sensors to operate for years, and the wide operating voltage range (1.71 V to 3.6 V) ensures compatibility with industrial power supplies. The 12-bit ADC with oversampling enables precise measurement of analog signals from sensors like temperature, pressure, and flow. The Cortex-M4 core with FPU handles complex signal processing and calibration algorithms, while the multiple communication interfaces (USART, SPI, I2C) support wired or wireless connectivity. The device's robust design and wide temperature range make it suitable for harsh industrial environments. The 256 KB flash provides ample storage for sensor data and firmware updates.
Recomendado
IoT Nodes
The STM32L433RCT6 is a perfect choice for IoT nodes due to its ultra-low power consumption and rich connectivity options. The device can run on battery power for extended periods, making it ideal for wireless sensor networks. The Cortex-M4 core with FPU enables efficient processing of sensor data, and the multiple communication interfaces (USART, SPI, I2C, USB) allow connection to various wireless modules (LoRa, BLE, Wi-Fi). The low-power modes (Sleep, Stop) reduce energy consumption when the node is idle, and the RTC enables scheduled wake-ups. The 12-bit ADC and DAC support analog sensors and actuators, and the 256 KB flash provides ample storage for firmware and data. The wide operating voltage range ensures compatibility with battery chemistries.
Recomendado
Portable Health Monitors
The STM32L433RCT6 is well-suited for portable health monitors like pulse oximeters and blood pressure monitors. Its ultra-low power consumption extends battery life, and the high-performance Cortex-M4 core with FPU handles real-time signal processing. The 12-bit ADC with oversampling provides high-resolution data acquisition for biosignals, and the DAC can generate analog output for calibration. The device's small LQFP64 package and wide operating voltage range make it easy to integrate into handheld devices. The multiple communication interfaces (USART, SPI, I2C, USB) allow data transfer to smartphones or computers, and the 256 KB flash provides ample storage for patient data. The RTC enables accurate time-stamping of health measurements.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para STM32L433RCT6 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | STM32L433RCT6TR | STM32L432RCT6 | STM32L431RCT6 | LPC845 | RA2A1 |
|---|---|---|---|---|---|---|
| Package | LQFP64 | LQFP64 | LQFP64 | LQFP64 | LQFP64 | LQFP64 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | NXP Semiconductors | Renesas Electronics |
| Core | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU | ARM Cortex-M4 with FPU | ARM Cortex-M0+ | ARM Cortex-M23 |
| Maximum Frequency | 80 MHz | 80 MHz | 80 MHz | 80 MHz | 30 MHz | 48 MHz |
| Flash Memory | 256 KB | 256 KB | 128 KB | 128 KB | 64 KB | 256 KB |
| SRAM | 64 KB | 64 KB | 64 KB | 64 KB | 16 KB | 32 KB |
| Standby Current | 100 nA | 100 nA | 100 nA | 100 nA | 1.5 uA | 300 nA |
| ADC Resolution | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit | 12-bit |
Principais diferenciais
- Ultra-low standby current of 100 nA (vs LPC845)
- Higher flash memory of 256 KB (vs STM32L432RCT6)
- Cortex-M4 core with FPU (vs RA2A1)
Notas de projeto
The STM32L433RCT6 operates from 1.71 V to 3.6 V. Use a low-dropout regulator (LDO) to provide a stable supply voltage. Decouple each VDD pin with a 100 nF ceramic capacitor and a 4.7 uF bulk capacitor. For the VBAT pin, connect a backup battery (e.g., CR2032) through a Schottky diode to prevent back-feeding. Ensure the power supply can handle peak currents during flash programming or high-frequency operation.
Place decoupling capacitors as close as possible to the VDD and VSS pins to minimize inductance. Use a solid ground plane to reduce noise and improve EMC performance. For the crystal oscillator pins (OSC_IN/OSC_OUT), keep traces short and shielded to avoid interference. Follow ST's layout guidelines in the datasheet for optimal performance.
Ensure the BOOT0 pin is properly configured to select the correct boot mode. If using the RTC, connect a 32.768 kHz crystal to OSC32_IN/OSC32_OUT and configure the RTC clock source. Do not exceed the absolute maximum ratings for VDD (3.6 V) and GPIO pins. When using the ADC, enable the internal voltage reference and calibrate the ADC for accurate readings.
Informações de conformidade
RoHS and REACH compliant per STMicroelectronics product page. Not AEC-Q100 qualified.
