Item specifics
Description
STM32L433VCT6 Product Overview
STM32L433VCT6 is an Arm Cortex-M4 MCU at 80 MHz with FPU and ART Accelerator, LQFP-100. 256 KB Flash, 64 KB SRAM, USB 2.0 FS device (crystal-less), 12-bit ADC (16 ch), two 12-bit DACs, two comparators, LP timers, RTC, 2×USART, 1×UART, 1×LPUART, 3×SPI/I2S, 3×I2C. Up to 83 x 5 V-tolerant I/Os. 1.71–3.6 V, -40–85 °C. Compared to the 64-pin STM32L433RCT3, the 100-pin STM32L433VCT6 offers more I/Os, making it a more powerful ultra-low-power platform for battery-powered IoT nodes, portable instruments, and industrial sensors needing extensive pin connectivity, rich peripheral communication, and USB.
STM32L433VCT6 Core Features
Core: The STM32L433VCT6 features an Arm Cortex-M4 core at 80 MHz, with FPU + ART Accelerator
Memory: The STM32L433VCT6 provides 256 KB Flash and 64 KB SRAM (incl. 16 KB with HW parity)
USB: The STM32L433VCT6 integrates a USB 2.0 FS device (crystal-less)
Analog: 12-bit ADC (16 ch), 2×12-bit DACs, 2×Comparators
Connectivity: 2×USART, 1×UART, 1×LPUART, 3×SPI/I2S, 3×I2C
Timers: 1×Advanced Timer, multiple GP/LP timers, RTC
I/Os: 83 (5 V-tolerant)
Package: LQFP-100
Temperature Range: -40°C to 85°C
STM32L433VCT6 Applications
IoT Sensor Nodes: Battery-powered wireless sensors and USB data acquisition modules can leverage the STM32L433VCT6's low power and connectivity
Portable Devices: Wearables, portable medical devices, and USB peripherals benefit from the STM32L433VCT6's compact integration
Industrial Metering: Water, gas, and electricity meters, along with industrial instruments, are ideal applications for the STM32L433VCT6
Consumer Electronics: Remote controls, e-labels, smart cards
Low-Power Systems Needing Rich I/Os & Analog: Portable instruments and industrial sensor nodes can rely on the STM32L433VCT6 for extensive connectivity
STM32L433VCT6 Key Advantages
Cortex-M4 + FPU + Ultra-Low Power: The STM32L433VCT6 delivers excellent DSP and floating-point performance while maintaining extremely low power consumption
Integrated Crystal-less USB: The STM32L433VCT6 enables USB communication without an external crystal, simplifying design and saving BOM
256 KB Flash + 64 KB SRAM: The STM32L433VCT6 provides large storage for complex protocol stacks and data processing
Dual DACs + Dual Comparators + 16-ch ADC: The STM32L433VCT6 offers flexible analog output, signal threshold detection, and multi-channel acquisition
83 I/Os + LPUART + Rich SPI/I2C: The STM32L433VCT6 has strong peripheral connectivity for multi-sensor and complex systems
5 V-tolerant I/Os: Enhanced system noise immunity, simplified external level-shifting circuitry
Full Ecosystem Compatibility: Easy development with STM32CubeIDE/HAL/LL libraries for the STM32L433VCT6
Why Choose QIXINWEI
Years of experience in the electronics industry. Trusted by global customers.
Massive In-Stock Inventory – Ready to ship promptly.
BOM Matching Service – One-stop solution, save time.
PCBA Customization – Professional engineering team creates tailor-made solutions based on your needs.
Cost-Effective & Efficient – Better channel, better cost.
A dedicated team makes your procurement smoother.
Contact us for BOM quotes or PCBA inquiries.
FAQ
1. What is STM32L433VCT6?
STM32L433VCT6 is an ultra-low-power 32-bit MCU from STMicroelectronics' STM32L4 series, built around an Arm® Cortex®-M4 core with FPU and DSP instructions in an LQFP-100 package. Operating at 80 MHz, the STM32L433VCT6 provides 256 KB Flash and 128 KB SRAM, along with CAN 2.0B, USB OTG FS, SAI digital audio interface, and high-precision analog peripherals, offering a balanced mix of features for battery-powered industrial, medical, and IoT applications.
2. What are the key specifications of STM32L433VCT6?
Core: Arm® Cortex®-M4, up to 80 MHz, 100 DMIPS with FPU and DSP
Memory: 256 KB Flash, 128 KB SRAM
Operating Voltage: 1.71 V to 3.6 V
Temperature Range: -40 °C to +85 °C (industrial grade)
I/O Count: up to 83
Package: LQFP-100 (14 mm × 14 mm)
3. What package does STM32L433VCT6 use and is it easy to solder?
The STM32L433VCT6 comes in an LQFP-100 package measuring 14 mm × 14 mm with exposed 0.5 mm pitch leads. Drag-soldering the STM32L433VCT6 with a standard soldering iron is straightforward—no hot-air station required—making it very suitable for small-batch hand assembly, prototyping, and rework.
4. What applications is STM32L433VCT6 suitable for?
With CAN 2.0B, USB OTG, SAI audio interface, and a rich set of high-precision analog peripherals, the STM32L433VCT6 is widely used in industrial fieldbus nodes, portable medical devices, motor control, sensor data acquisition systems, audio processing terminals, and IoT edge devices that require multiple communication interfaces and ultra-low-power operation.
5. What development tools support STM32L433VCT6?
ST provides free STM32CubeMX for graphical configuration and STM32CubeIDE as an integrated development environment for the STM32L433VCT6, along with the STM32CubeL4 firmware library. Debugging and programming are handled by ST-Link debuggers. Compatible NUCLEO or Discovery boards with similar peripheral architectures allow for rapid prototyping and straightforward code migration.
6. What is the power consumption of the STM32L433VCT6 across its low-power modes?
Temperature Range: -40 °C to +85 °C
Ultra-low-power modes of the STM32L433VCT6:
Shutdown mode: ~33 nA (5 wake-up pins)
Standby mode: ~125 nA (5 wake-up pins), ~430 nA with RTC
Stop 2 mode: ~1.2 µA, ~1.4 µA with RTC
Run mode: ~100 µA/MHz (LDO mode)
7. How does STM32L433VCT6 differ from STM32L432KCU6?
Both share an 80 MHz Cortex-M4 core and similar Flash options. The STM32L433VCT6 offers up to 83 I/Os in an LQFP-100 package, along with CAN 2.0B and SAI, while the L432 typically comes in smaller packages with fewer I/Os (around 26-38) and may lack CAN. The STM32L433VCT6 is designed for applications needing abundant I/O and industrial interfaces, whereas the L432 targets extremely space-constrained designs.
8. What key peripheral interfaces does STM32L433VCT6 offer?
Communication: CAN 2.0B, I²C, SPI, UART/USART, USB OTG FS, SAI (I2S/PCM/PDM)
Analog: 12-bit 5 Msps ADC, 12-bit DAC, ultra-low-power comparators
Timers: 16-bit and 32-bit general-purpose timers, advanced motor-control timer
Others: Quad SPI interface, SDMMC interface
9. What is the main difference between STM32L433VCT6 and STM32L452VCT6?
Both share a similar package and Flash density. The L452VCT6 features larger SRAM (160 KB vs 128 KB) and integrated operational amplifiers. The STM32L433VCT6, with its standard SRAM and identical CAN/USB connectivity, provides a more cost-effective solution when the extra RAM and op-amps are not required.
10. What can the SAI interface on the STM32L433VCT6 do? Does it support PDM microphones?
The SAI (Serial Audio Interface) on the STM32L433VCT6 supports I2S, PCM, PDM, and other protocols, allowing direct connection to MEMS digital microphones or audio codecs. With DMA, it enables low-power audio capture and playback for voice control, audio analysis, or simple recording devices. In PDM mode, up to four digital microphones can be connected to the STM32L433VCT6, providing hardware support for multi-mic arrays.