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STMicroelectronics STM32L431VCT6 — Microcontrollers & Processors (MCU / MPU / DSP)

STM32L431VCT6 MCU, ARM Cortex-M4, 80 MHz, 256 KB Flash

MPNSTM32L431VCT6
Active

STMicroelectronics STM32L4 series, ARM Cortex-M4 32-bit MCU, STM32L431VCT6, 80 MHz, 256 KB Flash, 64 KB SRAM, 100-LQFP, -40 to 85 °C.

$6.8100Ref. price · indicative, final on quote
Packaging100-LQFP
RoHSROHS3 Compliant
SeriesSTM32L4
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STM32L431VCT6 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, PWM, WDT
ConnectivityCANbus, I²C, IrDA, LINbus, MMC/SD, QSPI, SAI, SPI, SWPMI, UART/USART
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, BOM-ready

The STM32L431VCT6: ROHS3 compliant, so it passes EU material restrictions without a waiver.

Cortex-M4 at 80 MHz — flash and SRAM budget

An ARM Cortex-M4 core clocked at 80 MHz gives the STM32L431VCT6 enough throughput for real-time control loops, sensor fusion, and protocol stacks without an external co-processor. 256 KB of on-chip flash and 64 KB of SRAM (organized as 64K x 8) define the firmware and data buffer ceiling — enough for a moderate application stack plus a real-time operating system.

Connectivity and analog I/O

On the analog side, 16 multiplexed 12-bit ADC channels and two 12-bit DAC channels handle sensor acquisition and control-voltage outputs without external converters. 83 general-purpose I/O lines in the 100-LQFP package give ample headroom for parallel displays, keypads, and memory-mapped peripherals.

Housed in a 100-LQFP (14x14 mm) with 0.5 mm pitch — a standard fine-pitch QFP that routes on a 4-layer board without micro-vias.

Frequently asked questions

What compliance documentation does STMicroelectronics provide for STM32L431VCT6?

Additional compliance documents (REACH, conflict minerals, material declarations) are typically available from the manufacturer upon request.