Integrated Circuits (ICs)

STM32L431KCU6TR

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STMicroelectronics

ARM MICROCONTROLLERS - MCU ULTRA-LOW-POWER FPU ARM CORTEX-M4 MCU 80 MHZ 256 KBYTES OF FLASH

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DocumentsSTM32L431KCU6TR | Datasheet

Integrated Circuits (ICs)

STM32L431KCU6TR

Active

STMicroelectronics

ARM MICROCONTROLLERS - MCU ULTRA-LOW-POWER FPU ARM CORTEX-M4 MCU 80 MHZ 256 KBYTES OF FLASH

Deep-Dive with AI

DocumentsSTM32L431KCU6TR | Datasheet

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	STM32L431KCU6TR

Connectivity	QSPI, IrDA, CANbus, UART/USART, I2C, SAI, LINbus, SWPMI, SPI
Core Processor	ARM® Cortex®-M4
Core Size	32-Bit
Data Converters	D/A 2x12b, A/D 10x12b
Mounting Type	Surface Mount
Number of I/O	26
Operating Temperature [Max]	85 C
Operating Temperature [Min]	-40 ¯C
Oscillator Type	Internal
Package / Case	32-UFQFN Exposed Pad
Peripherals	DMA, PWM, Brown-out Detect/Reset, WDT
Program Memory Size	256 KB
Program Memory Type	FLASH
RAM Size	64 K
Speed	80 MHz
Supplier Device Package	32-UFQFPN (5x5)
Voltage - Supply (Vcc/Vdd) [Max]	3.6 V
Voltage - Supply (Vcc/Vdd) [Min]	1.71 V

STM32L431KC Series

Ultra-low-power with FPU Arm Cortex-M4 MCU 80 MHz with 256 Kbytes of Flash memory

Part	Core Size	Package / Case	Program Memory Size	Supplier Device Package	Mounting Type	Peripherals	Program Memory Type	Number of I/O	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Operating Temperature [Max]	Operating Temperature [Min]	RAM Size	Connectivity	Core Processor	Oscillator Type	Speed	Data Converters
STMicroelectronics STM32L431KCU6TR	32-Bit	32-UFQFN Exposed Pad	256 KB	32-UFQFPN (5x5)	Surface Mount	Brown-out Detect/Reset DMA PWM WDT	FLASH	26	3.6 V	1.71 V	85 C	-40 ¯C	64 K	CANbus I2C IrDA LINbus QSPI SAI SPI SWPMI UART/USART	ARM® Cortex®-M4	Internal	80 MHz	A/D 10x12b D/A 2x12b

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	N/A	0	$ 2.34
Mouser	N/A	1	$ 6.07
		10	$ 4.30
		25	$ 4.01
		100	$ 3.52
		250	$ 3.34
		500	$ 3.00
		1000	$ 2.53
		3000	$ 2.40

Description

General part information

STM32L431KC Series

The STM32L431xx devices are the ultra-low-power microcontrollers based on the high-performance Arm®Cortex®-M4 32-bit RISC core operating at a frequency of up to 80 MHz. The Cortex-M4 core features a Floating point unit (FPU) single precision which supports all Arm®single-precision data-processing instructions and data types. It also implements a full set of DSP instructions and a memory protection unit (MPU) which enhances application security.

The STM32L431xx devices embed high-speed memories (Flash memory up to 256 Kbyte, 64 Kbyte of SRAM), a Quad SPI flash memories interface (available on all packages) and an extensive range of enhanced I/Os and peripherals connected to two APB buses, two AHB buses and a 32-bit multi-AHB bus matrix.

The STM32L431xx devices embed several protection mechanisms for embedded Flash memory and SRAM: readout protection, write protection, proprietary code readout protection and Firewall.

Documents

Technical documentation and resources

STM32L431KCU6TR | Datasheet

Datasheet