company blog about Mingjiada Supplies the STM32L431CCU6TR | Ultra-Low-Power Cortex-M4 MCU | Suitable for Industrial Sensing and Wearable Medical Devices

Mingjiada Electronics Supplies the STM32L431CCU6TR—an Ultra-Low-Power MCU Designed Specifically for Industrial Sensing and Wearable Medical Devices

STM32L431CCU6TR Product Overview

The STM32L431CCU6TR is an ultra-low-power microcontroller (MCU) from STMicroelectronics’ STM32L4 series. Based on an ARM® Cortex®-M4 32-bit RISC core with a floating-point unit (FPU) and operating at a maximum clock speed of 80 MHz, this device achieves an excellent balance between performance and power consumption.

The STM32L431CCU6TR is housed in a 48-pin UFQFPN package (7×7 mm) and integrates 256 KB of flash memory and 64 KB of SRAM. It supports a wide range of peripheral interfaces and analog functions, making it particularly suitable for sensor nodes, portable medical devices, and IoT end products requiring long-term battery operation.

Mingjiada Electronics maintains a long-term stock of genuine units for this model and offers fast delivery. Please feel free to contact us for purchasing inquiries.

STM32L431CCU6TR Key Specifications and Features

Manufacturer: STMicroelectronics

Series: STM32L4

Processor Core: ARM® Cortex®-M4 with FPU and DSP instructions

Clock Speed: 80 MHz (100 DMIPS)

Flash Memory: 256 KB (256K × 8)

SRAM: 64 KB (64K × 8)

Package: 48-UFQFPN (7×7 mm)

Number of I/O Pins: 39

Operating Voltage: 1.71 V ~ 3.6 V

Operating Temperature: -40°C ~ +85°C (Industrial Grade)

Data Converters: A/D 10×12b; D/A 2×12b

Communication Interfaces: CANbus, I2C, IrDA, LINbus, QSPI, SAI, SPI, SWPMI, UART/USART

Peripherals: Undervoltage Detection/Reset, DMA, PWM, WDT

Packaging: Tape and Reel (TR), 2,500 pieces per reel

Grade: Industrial

STM32L431CCU6TR Key Advantages

1. Ultra-low-power design

Shutdown mode current as low as 8 nA; standby mode current only 28 nA

Stop 2 mode current only 1.0 μA (1.28 μA with RTC)

Dynamic operating mode as low as 84 μA/MHz

Wakes up from Stop mode in just 4 μs, ensuring rapid response

Achieved outstanding results of 447 ULPMark-CP and 167 ULPMark-PP in the EEMBC™ ULPBench® standard test

2. High-Performance Cortex-M4 Core

ARM Cortex-M4 core with FPU, supporting a full set of DSP instructions

ST ART Accelerator™ technology enables zero-wait execution from Flash

Performance reaches 100 DMIPS and 273.55 CoreMark

3. Extensive Analog Peripherals and Interfaces

1× 12-bit ADC (5 Msps, up to 16-bit hardware oversampling)

2× 12-bit DAC output channels

1× operational amplifier (with integrated PGA) + 2× ultra-low-power comparators

Up to 16 communication interfaces, including CAN, QSPI, SAI, and more

4. Industrial-Grade Reliability

Operating temperature range: -40°C to +85°C

64 KB SRAM, including 16 KB with hardware parity checking

On-chip true random number generator (TRNG) and CRC calculation unit

Typical Application Scenarios: Addressing Key Challenges in Industrial and Medical Fields

The STM32L431CCU6TR is primarily optimized for the following high-growth sectors:

Industrial Sensing and Automation Control: With an on-chip CAN bus, multiple 12-bit ADCs, and 12-bit DACs, combined with Batch Acquisition Mode (BAM), it can continuously acquire vibration, temperature, or pressure data at low power consumption, making it suitable for industrial predictive maintenance sensors and smart transmitters.

Wearable Health Monitoring Devices: Its compact 48-UFQFPN package and ultra-low leakage of 0.01 µA in shutdown mode significantly extend the battery life of wearable devices such as smart wristbands and medical patches. Additionally, the built-in hardware true random number generator (TRNG) ensures secure encryption for the transmission of personal health data.

Smart Meters and Energy Management: With its LCD driver and low-power UART/SPI interfaces, this MCU performs exceptionally well in smart water, electricity, and gas meters, as well as in energy storage BMS slave units, enabling precise metering and long-range wireless communication.

Mingjiada’s Service Advantages: Genuine Stock and Rapid Response

As a renowned independent distributor with over 20 years of experience in the electronic components supply chain, Shenzhen Mingjiada Electronics Co., Ltd. is ISO 9001 and ISO 14001 certified and maintains a global inventory network covering over 2 million part numbers.

For the STM32L431CCU6TR, Mingjiada offers:

Guaranteed Genuine Factory Products: All products come with original manufacturer batch traceability and compliance reports, eliminating the risk of counterfeit or refurbished goods.

Flexible Stock Availability: Bonded warehouses in Shenzhen and Hong Kong support expedited shipping within 48 hours, meeting the needs of R&D sample procurement and urgent mass production.

Professional Order Fulfillment Support: In addition to MCUs, we can simultaneously supply power management, sensors, and isolation devices from brands such as ST, TI, and ADI, enabling one-stop fulfillment of your BOM.

Summary

The STM32L431CCU6TR strikes an excellent balance between computing power, power consumption, and integration, making it an ideal choice for the iterative upgrades of industrial IoT and portable medical devices. Relying on its reliable supply chain, Mingjiada Electronics provides a stable supply of this core component, helping customers accelerate product commercialization.

If you need to purchase samples or request a bulk quote, please contact the Mingjiada Electronics sales team.