STMicroelectronics STM32L433RBT6

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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 52
Program Memory Size 128KB (128K 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 16x12b; D/A 2x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 85°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 64-LQFP (10x10)
Package / Case 64-LQFP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STM32L433RBT6 is an ultra-low-power ARM Cortex-M4 MCU from STMicroelectronics. It runs at 80MHz with 128KB flash and 64KB RAM in a 64-LQFP package. Featuring an LCD driver, DMA, and wide voltage range, it is ideal for energy-efficient embedded applications.

  • Ultra-low power: 1.71V operation for battery longevity.
  • High performance: 80MHz Cortex-M4 with DSP instructions.
  • Integrated LCD driver: Reduces BOM cost.
  • Compact LQFP package: Easy to solder and inspect.

Portable Instrumentation

Low power and 80MHz performance enable handheld multimeters and data loggers.

Smart Displays

Integrated LCD driver simplifies segmented display interfaces in consumer electronics.

Industrial Sensors

DMA and PWM support high-speed data acquisition and actuator control.

Medical Wearables

Ultra-low-power modes extend battery life in continuous glucose monitors.

Building Automation

Reliable operation with brown-out detection in HVAC controllers.

IoT Endpoints

128KB flash is sufficient for secure cloud connectivity stacks.

Q: What is the difference between STM32L433RBT6 and STM32L433RCI3?
A: The RBT6 has 128KB flash and comes in a 64-LQFP package, while RCI3 has 256KB flash in 64-UFBGA.
Q: What is the operating temperature range?
A: It operates from -40°C to 85°C.
Q: Does it have an LCD controller?
A: Yes, it includes an integrated LCD driver.
Q: What is the supply voltage?
A: It ranges from 1.71V to 3.6V.
Base Product Number : STM32L433RB
128KB flash 32-bit MCU 64-LQFP 80MHz ARM Cortex-M4 industrial IoT LCD driver medical STM32L4 ultra-low-power
Q: What is the difference between STM32L433RBT6 and STM32L433RCI3?
A: The RBT6 has 128KB flash and comes in a 64-LQFP package, while RCI3 has 256KB flash in 64-UFBGA.
Q: What is the operating temperature range?
A: It operates from -40°C to 85°C.
Q: Does it have an LCD controller?
A: Yes, it includes an integrated LCD driver.
Q: What is the supply voltage?
A: It ranges from 1.71V to 3.6V.