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STM32L431CCT6TR

STM32L431CCT6TR

STMicroelectronics
ARM® Cortex®-M4 STM32L4 Microcontroller IC 32-Bit 80MHz 256KB (256K x 8) FLASH 48-LQFP (7x7)
Active2,090 in stock
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Overview

The STM32L431CCT6TR is an ultra-low-power microcontroller based on the ARM Cortex-M4 core with a Floating Point Unit (FPU) and DSP instructions, operating at up to 80MHz. It features 256KB of Flash memory and 64KB of RAM, designed specifically for power-sensitive applications requiring efficient processing and various low-power modes including a 200nA shutdown mode. The device includes a rich set of peripherals such as a 12-bit ADC, DACs, and high-speed interfaces like QSPI and CANbus.

Why Choose This Part

This MCU offers a high performance-to-power ratio through ST's FlexPowerControl and ART Accelerator, which allows 0-wait-state execution from Flash. It supports a wide operating voltage range from 1.71V to 3.6V and provides extensive digital and analog integration in a compact 48-pin LQFP package.

Applications

Battery-Powered IoT Nodes
Utilizes extremely low standby and shutdown currents (sub-300nA) to extend battery life in remote sensors.
Industrial Sensor Interfaces
Leverages the integrated 12-bit ADC and CANbus connectivity for robust data acquisition and industrial networking.
Portable Medical Devices
The Cortex-M4 FPU allows for real-time digital signal processing of biometric data while maintaining low power consumption.
Smart Utility Meters
Supports multiple communication interfaces like UART, SPI, and I2C for managing metering peripherals and wireless modules.

Key Specifications

Speed 80MHz
RAM Size 64K x 8
Core Size 32-Bit
Peripherals Brown-out Detect/Reset, DMA, PWM, WDT
Connectivity CANbus, I2C, IrDA, LINbus, QSPI, SAI, SPI, SWPMI, UART/USART
Mounting Type Surface Mount
Number of I/O 39
Core Processor ARM Cortex-M4
Package / Case 48-LQFP
Data Converters A/D 10x12b; D/A 2x12b
Oscillator Type Internal
Program Memory Size 256KB (256K x 8)
Program Memory Type FLASH
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 48-LQFP (7x7)
Voltage - Supply (Vcc/Vdd) 1.71V ~ 3.6V

Getting Started

Start development using the STM32CubeL4 software package, which includes HAL drivers and low-layer APIs. Hardware evaluation can be performed using the NUCLEO-L432KC or specialized Discovery kits, with full debugging support via ST-LINK/V2 and compatible IDEs like STM32CubeIDE or Keil MDK.

Dev Boards

Development boards and breakout modules featuring the STM32L431CCT6TR or compatible chips — ready to use for prototyping.

NUCLEO-L432KC STMicroelectronics
Development Boards & Kits - ARM STM32 Nucleo-32 dev board STM32L432KC, supports Arduino nano conn
Digi-Key Mouser 2,384 in stock
NUCLEO-L476RG STMicroelectronics
Development Boards & Kits - ARM STM32 Nucleo-64 development board STM32L476RG MCU, supports Arduino & ST morpho
Digi-Key Mouser 2,929 in stock

STM32L431 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number I/O Pins Package Flash Stock
STM32L431CCT6TR (this part) Tape & Reel 39 LQFP-48 256KB 2,090
STM32L431CCU6 39 UFQFN-48 256KB 4,536
STM32L431CBT6 39 LQFP-48 128KB 8,177
STM32L431CCU6TR Tape & Reel 39 UFQFN-48 256KB 2,696
STM32L431CCY6TR Tape & Reel 39 UFBGA-49 256KB 4,345
STM32L431KCU6 26 UFQFN-32 256KB 4,370
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