STMicroelectronics STM32L443RCI3
| 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 |
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| 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 |
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.
- 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.

STM32L443RCI3.pdf