STM32L431CCT6 Ultra-Low-Power MCU | Cortex-M4F 80MHz | 48-LQFP Industrial Controller | STMicroelectronics

STM32L431CCT6

Ultra-low-power 32-bit MCU built on an Arm® Cortex®-M4 core with FPU running up to 80 MHz, featuring 256 KB Flash and 64 KB SRAM in a compact 48-pin LQFP package, with rich analog and digital peripherals for cost-effective industrial, portable, and IoT edge designs.

Product Description

Product Overview

The STM32L431CCT6 is part of STMicroelectronics’ STM32L4 ultra-low-power family, specifically the STM32L431xx line, using an 80 MHz Cortex-M4F core that combines low energy with 32-bit performance, reaching about 100 DMIPS.

It integrates 256 KB of Flash and 64 KB of SRAM, connected via a multilayer AHB bus matrix and DMA controllers to provide high-bandwidth data movement between core and peripherals, making it suitable for protocol stacks, low-power real-time tasks, and local signal processing.

Housed in a 48-pin LQFP package, it exposes up to about 38 multiplexed I/Os and supports QSPI, SAI, CAN, USART, SPI, and I²C interfaces, operating from 1.71–3.6 V over –40°C to +85°C, which fits compact and power-constrained controller boards.

Key Features

Arm® Cortex®-M4 core with hardware FPU, delivering around 100 DMIPS performance
CPU frequency up to 80 MHz, about 1.25 DMIPS/MHz on Drystone 2.1
Memory resources: 256 KB Flash program memory and 64 KB SRAM data memory
Security & system: Flash/SRAM protection, Firewall, CRC, true RNG, and 96-bit unique ID
I/O resources: up to about 38 GPIO lines, with 5 V tolerance on selected pins depending on configuration
Package: 48-LQFP (7 × 7 mm), well suited for standard industrial PCBs

Product Applications

Low-power industrial controllers and remote I/O modules
Battery-powered data acquisition nodes and portable measurement instruments
Sensing nodes and room controllers for building and home automation
IoT edge nodes, gateway sub-boards, and energy-harvesting endpoints
Main controller MCU in medical, health-monitoring, and wearable-style devices
Motor control, compact inverter drives, and smart actuator units requiring local signal processing

Technical Specifications

Parameter	Specification
Core	Arm Cortex-M4 with FPU
CPU Frequency	up to 80 MHz
Flash	256 KB
SRAM	64 KB
Supply Voltage	1.71 – 3.6 V
Operating Temp	–40°C ~ +85°C
ADC	1 × 12-bit, approximately 10 channels
DAC	2 × 12-bit
Interfaces	CAN, I²C, SPI, QSPI, USART/UART, SAI, LIN, IrDA, SWPMI
GPIO / I/O Lines	up to ~38 I/Os
Package	48-LQFP (7 × 7 mm)

RFQ & Support

Jaron supplies genuine ST STM32L431CCT6 with global stock and full technical support.
Please include quantity, target price, ETA, and application details in your RFQ.
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