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STMicroelectronics STM32L443VCT6 — Microcontrollers & Processors (MCU / MPU / DSP)

STM32L443VCT6 STM32L4 MCU, 80MHz Cortex-M4, 256KB Flash

MPNSTM32L443VCT6
Active

STMicroelectronics STM32L4 series, STM32L443VCT6 ARM Cortex-M4 MCU, 80MHz, 256KB Flash, 64KB RAM, 83 I/O, 100-LQFP.

$9.66014Ref. price · indicative, final on quote
STMicroelectronics STM32L443VCT6 datasheet (PDF)
Packaging100-LQFP
RoHSROHS3 Compliant
SeriesSTM32L4
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026Stock-verified to date

Specifications

STM32L443VCT6 specifications
ParameterValue
SeriesSTM32L4
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.71V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed80MHz
PackageTray
RAM size64K x 8
Core size32-Bit Single-Core
PeripheralsBrown-out Detect/Reset, DMA, LCD, PWM, WDT
ConnectivityCANbus, I²C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART, USB
Number of i (O)83
Core processorARM® Cortex®-M4
Case100-LQFP
Data convertersA/D 16x12b; D/A 2x12b
Program memory size256KB (256K x 8)

Product details

Active production, 80MHz Cortex-M4 with 256KB Flash

The STM32L443VCT6 is an active-production ARM Cortex-M4 MCU from the STM32L4 ultra-low-power series, clocked at 80MHz with 256KB of Flash and 64KB of SRAM — enough headroom for a sensor-fusion algorithm or a moderate GUI stack without external memory.

Peripheral mix and connectivity

On-chip peripherals include brown-out detect, DMA, a segment LCD controller, PWM timers, and a watchdog — the LCD controller drives up to 8x40 segments directly, eliminating a separate display driver in metering or HMI applications.

Compliance and documentation

RoHS3 compliant. The base product number is STM32L443; the full datasheet and reference manual (RM0432) are published by STMicroelectronics.

Frequently asked questions

What is the closest functional alternative to STM32L443VCT6?

The STM32L151CBU6A is a related STM32L1-series part with a Cortex-M3 core at 32 MHz, 37 I/O, and similar ADC/DAC resolution — but it is not a pin-compatible drop-in. The STM32L443VCT6 runs at 80 MHz, has 83 I/O, and adds USB, CAN, and QSPI that the lacks. A board spin is required to swap between the two.

What is the speed and core of the STM32L443VCT6?

It runs an ARM Cortex-M4 core at 80 MHz — the 32-bit single-core architecture with DSP instructions and a single-precision FPU handles real-time control loops and sensor fusion without an external co-processor.