STMicroelectronics STM32L433CCT6

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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-LQFP (7x7)
Package / Case 48-LQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STM32L433CCT6 from STMicroelectronics is an ultra-low-power 32-bit MCU based on the ARM Cortex-M4 core with floating-point unit. Operating at up to 80 MHz, it provides 256KB flash and 64KB SRAM for demanding applications. The device supports a wide supply range of 1.71V to 3.6V and includes advanced features like a segment LCD controller, DMA, and multiple low-power modes. Housed in a 48-LQFP package, it is designed for battery-operated and energy-efficient systems requiring high performance and rich connectivity.

  • Ultra-Low Power: Multiple low-power modes (sleep, stop, standby) with typical current consumption in the µA range.
  • High Performance: Cortex-M4 with FPU accelerates DSP and math-intensive tasks.
  • Integrated LCD Driver: Eliminates external LCD driver ICs, reducing BOM cost and board space.
  • Large Memory: 256KB flash and 64KB SRAM support complex RTOS-based applications.

Wearable Health Trackers

The ultra-low-power Cortex-M4 core with FPU handles sensor fusion algorithms for heart-rate and motion tracking while running on a coin cell.

Smart Meters

With 256KB flash and an LCD controller, it can manage multi-tariff energy metering and display usage data on a segmented LCD.

Industrial IoT Gateways

Multiple UART/SPI/I2C interfaces and DMA enable seamless connection to Wi-Fi or LoRa modules for data aggregation.

Portable Medical Devices

The 1.71V minimum supply and low-power modes extend battery life in insulin pumps and digital thermometers.

Building Automation Controllers

Its rich analog peripherals and 80MHz speed support HVAC control with PID algorithms and BACnet protocol stacks.

Consumer Electronics

The integrated LCD driver and touch sensing capability make it suitable for smart home control panels with minimal external components.

Q: What core does this MCU use?
A: It is based on the ARM Cortex-M4 core with FPU, running at up to 80 MHz.
Q: What is the supply voltage range?
A: It operates from 1.71V to 3.6V, ideal for battery-powered applications.
Q: How much flash and RAM does it have?
A: It features 256KB flash and 64KB SRAM, providing ample space for complex applications.
Q: Does it have an LCD controller?
A: Yes, it includes a segment LCD controller, suitable for direct glass LCD driving.
Q: What package is available?
A: It comes in a 48-LQFP package, balancing I/O count and board space.
Base Product Number : STM32L433CC
256KB flash 32-bit MCU 48-LQFP 80MHz ARM Cortex-M4 IoT LCD low power STM32 wearable
Q: What core does this MCU use?
A: It is based on the ARM Cortex-M4 core with FPU, running at up to 80 MHz.
Q: What is the supply voltage range?
A: It operates from 1.71V to 3.6V, ideal for battery-powered applications.
Q: How much flash and RAM does it have?
A: It features 256KB flash and 64KB SRAM, providing ample space for complex applications.
Q: Does it have an LCD controller?
A: Yes, it includes a segment LCD controller, suitable for direct glass LCD driving.
Q: What package is available?
A: It comes in a 48-LQFP package, balancing I/O count and board space.