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STM32L433CCU6

STM32L433CCU6

STMicroelectronics
Similar L4-series MCU with different memory and peripheral mix
Active1,257 in stock
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Overview

The STM32L433CCU6 is an ultra-low-power microcontroller based on the Arm Cortex-M4 core with FPU and DSP instructions, operating at up to 80 MHz. It balances performance and power efficiency with 256 KB of Flash memory, 64 KB of SRAM, and advanced power management features like FlexPowerControl. The device is designed for energy-sensitive applications requiring math-intensive processing in a compact 48-pin UFQFPN package.

Why Choose This Part

This MCU utilizes the ART Accelerator for zero-wait-state execution from Flash and the Interconnect Matrix to reduce CPU overhead by allowing direct peripheral communication. It offers a wide range of power-saving modes, including a shutdown mode consuming only 8 nA, while maintaining flexibility with 5V-tolerant I/Os and integrated USB connectivity.

Applications

Portable Medical Devices
The ultra-low power consumption and integrated FPU make it suitable for handheld diagnostic equipment that requires long battery life and signal processing.
Industrial Sensor Nodes
Leverages Batch Acquisition Mode (BAM) and 5V-tolerant I/Os for efficient data logging and interfacing in industrial environments.
Smart Utility Meters
Features such as the RTC and low-power run modes enable reliable, multi-year operation on primary batteries for water or gas metering.
IoT Wearables
Small footprint and deep-sleep modes allow for compact designs that process sensor data locally before wireless transmission.

Key Specifications

Speed 80MHz
RAM Size 64K x 8
Core Size 32-Bit
Peripherals Brown-out Detect/Reset, DMA, LCD, PWM, WDT
Connectivity CANbus, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART, USB
Mounting Type Surface Mount
Number of I/O 38
Core Processor ARM Cortex-M4
Package / Case 48-UFQFN Exposed Pad
Data Converters A/D 10x12b; D/A 2x12b
Oscillator Type Internal
Program Memory Size 256KB (256K x 8)
Program Memory Type FLASH
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 48-UFQFPN (7x7)
Voltage - Supply (Vcc/Vdd) 1.71V ~ 3.6V

Getting Started

Engineers can begin development using the NUCLEO-L433RC-P board or the STM32L4 Discovery kit for rapid prototyping. The part is fully supported by the STM32Cube ecosystem, including STM32CubeMX for graphical initialization and the STM32CubeIDE for development. Hardware debugging is typically handled via ST-LINK/V2 or V3 probes using the SWD interface.

Dev Boards

Development boards and breakout modules featuring the STM32L433CCU6 or compatible chips — ready to use for prototyping.

NUCLEO-L432KC STMicroelectronics
Development Boards & Kits - ARM STM32 Nucleo-32 dev board STM32L432KC, supports Arduino nano conn
Digi-Key Mouser 2,384 in stock
NUCLEO-L476RG STMicroelectronics
Development Boards & Kits - ARM STM32 Nucleo-64 development board STM32L476RG MCU, supports Arduino & ST morpho
Digi-Key Mouser 3,059 in stock
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