STMicroelectronics STM32L433CCU6

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Product attributes Property Value
Manufacturer STMicroelectronics
Product Series STM32L4
Packaging Tray |
Core Processor ARM® Cortex®-M4
Core Size 32-Bit Single-Core
Speed 80MHz
Connectivity CANbus, I2C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART, USB
Peripherals Brown-out Detect/Reset, DMA, LCD, PWM, WDT
Number of I/O 38
Program Memory Size 256KB (256K x 8)
Program Memory Type FLASH
EEPROM Size -
RAM Size 64K x 8
Voltage - Supply (Vcc/Vdd) 1.71V ~ 3.6V
Data Converters A/D 10x12b; D/A 2x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 48-UFQFPN (7x7)
Package / Case 48-UFQFN Exposed Pad
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STM32L433CCU6 from STMicroelectronics is a low-power ARM Cortex-M4 microcontroller with FPU, operating at 80MHz. It features 256KB flash and 64KB SRAM in a 48-pin UFQFN package. With a supply range of 1.71V to 3.6V, it includes an LCD controller, DMA, PWM, Brown-out Reset, and WDT. This MCU is designed for high-efficiency, feature-rich embedded applications.

  • Ultra-low-power architecture extends battery life in portable devices.
  • 80MHz Cortex-M4 with FPU accelerates DSP and math-intensive tasks.
  • Integrated LCD driver reduces external component count and BOM cost.
  • Wide voltage range (1.71V-3.6V) supports direct battery connection.

IoT Edge Nodes with Display

The integrated LCD controller and 80MHz Cortex-M4 enable rich user interfaces on battery-powered sensors.

Portable Medical Devices

Low 1.71V operation and DMA support efficient data logging from ADC to SRAM without CPU intervention.

Smart Meters

Segment LCD and low-power modes make it ideal for utility meters requiring long battery life and clear readouts.

Wearable Fitness Trackers

The 64KB SRAM and FPU handle sensor fusion algorithms while the LCD shows real-time stats.

Industrial HMI Panels

PWM outputs and robust peripherals drive backlighting and keypad scanning in compact operator interfaces.

Building Automation Controllers

Wide voltage range and DMA enable efficient HVAC zone control with multiple sensor inputs.

Q: What core does this MCU use?
A: It is based on the ARM Cortex-M4 with FPU, running at up to 80MHz.
Q: What is the supply voltage range?
A: It operates from 1.71V to 3.6V, supporting battery and energy-harvesting designs.
Q: How much flash and RAM are included?
A: It has 256KB flash and 64KB SRAM.
Q: Does it have an LCD controller?
A: Yes, it includes a segment LCD driver, along with DMA, PWM, and WDT.
Base Product Number : STM32L433CC
256KB Flash 32-bit MCU 80MHz ARM Cortex-M4 DMA IoT LCD Low Power Medical STM32L4 UFQFN-48
Q: What core does this MCU use?
A: It is based on the ARM Cortex-M4 with FPU, running at up to 80MHz.
Q: What is the supply voltage range?
A: It operates from 1.71V to 3.6V, supporting battery and energy-harvesting designs.
Q: How much flash and RAM are included?
A: It has 256KB flash and 64KB SRAM.
Q: Does it have an LCD controller?
A: Yes, it includes a segment LCD driver, along with DMA, PWM, and WDT.