STMicroelectronics STM32L443RCI3

Skip to product information
1 of 1
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.
Regular price $9.04
Regular price $6.46 Sale price $9.04
Sale Sold out
Quantity Unit Price Total Price
1 $9.04 $9.04
15+ $5.94 $89.10
25+ $5.81 $145.25
50+ $5.49 $274.50
100+ $4.85 $485.00
N+ $0.97 Price Inquiry
Shipping calculated at checkout.
Quantity
Component Recycling

Request Quote / Inquiry

Product attributes Property Value
Manufacturer STMicroelectronics
Product Series STM32L4
Packaging Tray | NULL
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 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 16x12b; D/A 2x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 125°C (TA)
Grade -
Qualification AEC -
Mounting Type Surface Mount
Supplier Device Package 64-WLCSP (3.14x3.13)
Package / Case 64-UFBGA, WLCSP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The STM32L443RCI3 from STMicroelectronics is an ultra-low-power ARM Cortex-M4 microcontroller. It delivers 80 MHz performance with 256KB flash and 64KB SRAM. Its integrated LCD driver, 12-bit ADC, and multiple communication interfaces make it suitable for metering, medical, and industrial applications. The wide voltage range and extended temperature support enable deployment in demanding environments.

  • Ultra-low power consumption: Multiple low-power modes extend battery life in portable devices.
  • Integrated LCD driver: Eliminates external display controller, reducing BOM cost and board space.
  • High temperature tolerance: Operates up to 125°C, suitable for industrial and automotive-adjacent environments.
  • Compact WLCSP package: Enables miniaturized product designs for wearables and sensors.

Battery-Powered IoT Sensors

The 1.71V minimum supply and multiple low-power modes enable years of operation from coin cells in wireless environmental monitors.

Portable Medical Devices

With 256KB flash and 64KB RAM, it handles complex algorithms for glucose meters or pulse oximeters while driving a small LCD directly.

Industrial Process Controllers

The 125°C junction temperature rating and brown-out reset ensure reliable operation in harsh factory floor environments.

Smart Home Displays

Integrated LCD driver and PWM outputs allow building thermostats or appliance panels without external display ICs.

Wearable Fitness Trackers

The WLCSP package minimizes PCB area, while DMA and low-power timers keep power consumption minimal during activity logging.

Field Maintenance Tools

Robust WDT and brown-out detection protect firmware integrity in handheld diagnostic equipment exposed to vibration and temperature swings.

Q: What is the operating voltage range of the STM32L443RCI3?
A: It operates from 1.71V to 3.6V, supporting low-power battery applications.
Q: Does this MCU include an LCD controller?
A: Yes, it features an integrated LCD driver for direct segment display control.
Q: What is the maximum core speed?
A: The ARM Cortex-M4 core runs at up to 80 MHz.
Q: What package is available?
A: It comes in a 64-UFBGA (WLCSP) package, ideal for compact designs.
Q: What is the temperature range?
A: It is rated for -40°C to 125°C ambient operation.
Base Product Number : STM32L443RCI3
256KB flash 32-bit MCU 80MHz ARM Cortex-M4 industrial IoT LCD driver medical STM32L4 ultra-low-power WLCSP
Q: What is the operating voltage range of the STM32L443RCI3?
A: It operates from 1.71V to 3.6V, supporting low-power battery applications.
Q: Does this MCU include an LCD controller?
A: Yes, it features an integrated LCD driver for direct segment display control.
Q: What is the maximum core speed?
A: The ARM Cortex-M4 core runs at up to 80 MHz.
Q: What package is available?
A: It comes in a 64-UFBGA (WLCSP) package, ideal for compact designs.
Q: What is the temperature range?
A: It is rated for -40°C to 125°C ambient operation.