STM32L433RCT6 - Ultra-Low-Power ARM Cortex-M4 MCU | STMicroelectronics
Référence : STM32L433RCT6 ✓ Actif| Qté | Prix unitaire | 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 Présentation
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.
Alternatives de remplacement direct pour STM32L433RCT6 — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec STM32L433RCT6 (même facteur de forme et même empreinte) — différant par Package, ADC, DAC, SRAM, Communication Interfaces.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
STM32L433RCT6TR
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
STM32L433RCT6P
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
STM32L433RCT6Q
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
STM32L432RCT6
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
STM32L431RCT6
✅ Remplacement direct ⚠️ Spécifications non vérifiées✓ En stock
$8.5909 / unité
Voir la fiche technique →LPC845
⚡ Même boîtier ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
RA2A1
⚡ Même boîtier ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
STM32L433RCT6 Valeurs maximales et caractéristiques électriques
| Core | ARM Cortex-M4 with FPU |
| Maximum Frequency | 80 MHz |
| Flash Memory | 256 KB |
| SRAM | 64 KB |
| Boîtier | 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 |
| Température de fonctionnement | -40C to +85C |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
Configuration des broches de STM32L433RCT6
| Broche 1 | VBAT — Battery backup supply for RTC |
| Broche 2 | PC14 — GPIO / OSC32_IN |
| Broche 3 | PC15 — GPIO / OSC32_OUT |
| Broche 4 | PF0 — GPIO / OSC_IN |
| Broche 5 | PF1 — GPIO / OSC_OUT |
| Broche 6 | NRST — Reset (active low) |
| Broche 7 | PC0 — GPIO / ADC_IN10 |
| Broche 8 | PC1 — GPIO / ADC_IN11 |
| Broche 9 | PC2 — GPIO / ADC_IN12 |
| Broche 10 | PC3 — GPIO / ADC_IN13 |
| Broche 11 | VDD — Digital power supply |
| Broche 12 | VSS — Ground |
| Broche 13 | PC4 — GPIO / ADC_IN14 |
| Broche 14 | PC5 — GPIO / ADC_IN15 |
| Broche 15 | PB0 — GPIO / ADC_IN8 |
| Broche 16 | PB1 — GPIO / ADC_IN9 |
| Broche 17 | PB2 — GPIO / BOOT1 |
| Broche 18 | PB10 — GPIO / I2C2_SCL |
| Broche 19 | PB11 — GPIO / I2C2_SDA |
| Broche 20 | VDD — Digital power supply |
| Broche 21 | VSS — Ground |
| Broche 22 | PB12 — GPIO / SPI2_NSS |
| Broche 23 | PB13 — GPIO / SPI2_SCK |
| Broche 24 | PB14 — GPIO / SPI2_MISO |
| Broche 25 | PB15 — GPIO / SPI2_MOSI |
| Broche 26 | PC6 — GPIO / USART6_TX |
| Broche 27 | PC7 — GPIO / USART6_RX |
| Broche 28 | PC8 — GPIO / USART6_CK |
| Broche 29 | PC9 — GPIO / USART6_CTS |
| Broche 30 | PA0 — GPIO / ADC_IN0 / WKUP1 |
| Broche 31 | PA1 — GPIO / ADC_IN1 |
| Broche 32 | PA2 — GPIO / ADC_IN2 / USART2_TX |
| Broche 33 | PA3 — GPIO / ADC_IN3 / USART2_RX |
| Broche 34 | VDD — Digital power supply |
| Broche 35 | VSS — Ground |
| Broche 36 | PA4 — GPIO / ADC_IN4 / DAC_OUT1 |
| Broche 37 | PA5 — GPIO / ADC_IN5 / DAC_OUT2 |
| Broche 38 | PA6 — GPIO / ADC_IN6 |
| Broche 39 | PA7 — GPIO / ADC_IN7 |
| Broche 40 | PC10 — GPIO / USART4_TX |
| Broche 41 | PC11 — GPIO / USART4_RX |
| Broche 42 | PC12 — GPIO / USART5_TX |
| Broche 43 | PD2 — GPIO / USART5_RX |
| Broche 44 | PB3 — GPIO / SPI1_SCK |
| Broche 45 | PB4 — GPIO / SPI1_MISO |
| Broche 46 | PB5 — GPIO / SPI1_MOSI |
| Broche 47 | PB6 — GPIO / I2C1_SCL |
| Broche 48 | PB7 — GPIO / I2C1_SDA |
| Broche 49 | BOOT0 — Boot mode selection |
| Broche 50 | PB8 — GPIO / I2C1_SCL |
| Broche 51 | PB9 — GPIO / I2C1_SDA |
| Broche 52 | VDD — Digital power supply |
| Broche 53 | VSS — Ground |
| Broche 54 | PA8 — GPIO / USB_OTG_FS_SOF |
| Broche 55 | PA9 — GPIO / USB_OTG_FS_VBUS |
| Broche 56 | PA10 — GPIO / USB_OTG_FS_ID |
| Broche 57 | PA11 — GPIO / USB_OTG_FS_DM |
| Broche 58 | PA12 — GPIO / USB_OTG_FS_DP |
| Broche 59 | PA13 — GPIO / SWDIO |
| Broche 60 | PA14 — GPIO / SWCLK |
| Broche 61 | PA15 — GPIO / JTDI |
| Broche 62 | PB3 — GPIO / JTDO |
| Broche 63 | PB4 — GPIO / NJTRST |
| Broche 64 | VDD — Digital power supply |
Applications typiques
STM32L433RCT6 convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour STM32L433RCT6 — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- Ultra-low standby current of 100 nA (vs LPC845)
- Higher flash memory of 256 KB (vs STM32L432RCT6)
- Cortex-M4 core with FPU (vs RA2A1)
Notes de conception
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.
Informations de conformité
RoHS and REACH compliant per STMicroelectronics product page. Not AEC-Q100 qualified.
