STMicroelectronics STM32L431RB Series ARM Microcontrollers - MCU

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CLP) Filter the results in the table by unit price based on your quantity.	Qty.	Series	Mounting Style	Package / Case	Core	Program Memory Size	Data Bus Width	ADC Resolution	Maximum Clock Frequency	Number of I/Os	Data RAM Size	Supply Voltage - Min	Supply Voltage - Max	Minimum Operating Temperature	Maximum Operating Temperature	Packaging
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 128 Kbytes of Flash STM32L431RBT6 STMicroelectronics 1: $7.212 670In Stock 1.920Expected 2/22/2027	Mfr. Part # STM32L431RBT6 Mouser Part # 511-STM32L431RBT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 128 Kbytes of Flash Learn More about STMicroelectronics stm stm32l4 mcu fpu	Datasheet	670In Stock 1.920Expected 2/22/2027	$7.212 $5.093 $4.751 $4.181	Min.: 1 Mult.: 1 Max.: 150	STM32L431RB	SMD/SMT	LQFP-64	ARM Cortex M4	128 kB	32 bit	12 bit	80 MHz	52 I/O	64 kB	1.71 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 128 Kbytes of Flash STM32L431RBI6 STMicroelectronics 1: $5.947 225In Stock 2.940On Order	Mfr. Part # STM32L431RBI6 Mouser Part # 511-STM32L431RBI6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 128 Kbytes of Flash Learn More about STMicroelectronics stm stm32l4 mcu fpu	Datasheet	225In Stock 2.940On Order	$5.947 $4.409 $3.987 $3.646	Min.: 1 Mult.: 1 Max.: 200	STM32L431RB	SMD/SMT	UFBGA-64	ARM Cortex M4	128 kB	32 bit	12 bit	80 MHz	52 I/O	64 kB	1.71 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 128 Kbytes of Flash STM32L431RBT6TR STMicroelectronics 1: $6.619 2.000Expected 2/22/2027	Mfr. Part # STM32L431RBT6TR Mouser Part # 511-STM32L431RBT6TR	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 128 Kbytes of Flash Learn More about STMicroelectronics stm stm32l4 mcu fpu	Datasheet	2.000Expected 2/22/2027	Cut Tape $6.619 $5.172 $4.500 $4.136 View Reel $3.737 $4.010 $3.737 $3.737 MouseReel Available	Min.: 1 Mult.: 1 Max.: 500 : 1.000	STM32L431RB	SMD/SMT	LQFP-64	ARM Cortex M4	128 kB	32 bit	12 bit	80 MHz	52 I/O	64 kB	1.71 V	3.6 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 128 Kbytes of Flash STM32L431RBI3 STMicroelectronics 2.940: $3.725 Non-Stocked Lead-Time 52 Weeks	Mfr. Part # STM32L431RBI3 Mouser Part # 511-STM32L431RBI3	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 128 Kbytes of Flash	Datasheet	Non-Stocked Lead-Time 52 Weeks	$3.725	Min.: 2.940 Mult.: 2.940	STM32L431RB	SMD/SMT	UFBGA-64	ARM Cortex M4	128 kB	32 bit	12 bit	80 MHz	52 I/O	64 kB	1.71 V	3.6 V	- 40 C	+ 125 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 128 Kbytes of Flash STM32L431RBI6TR STMicroelectronics 5.000: $3.144 Non-Stocked Lead-Time 52 Weeks	Mfr. Part # STM32L431RBI6TR Mouser Part # 511-STM32L431RBI6TR	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 128 Kbytes of Flash Learn More about STMicroelectronics stm stm32l4 mcu fpu	Datasheet	Non-Stocked Lead-Time 52 Weeks	Reel $3.144	Min.: 5.000 Mult.: 5.000 : 5.000	STM32L431RB	SMD/SMT	UFBGA-64	ARM Cortex M4	128 kB	32 bit	12 bit	80 MHz	52 I/O	64 kB	1.71 V	3.6 V	- 40 C	+ 85 C	Reel
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 128 Kbytes of Flash STM32L431RBY6TR STMicroelectronics 5.000: $2.848 Non-Stocked Lead-Time 52 Weeks	Mfr. Part # STM32L431RBY6TR Mouser Part # 511-STM32L431RBY6TR	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 128 Kbytes of Flash Learn More about STMicroelectronics stm stm32l4 mcu fpu	Datasheet	Non-Stocked Lead-Time 52 Weeks	Reel $2.848	Min.: 5.000 Mult.: 5.000 : 5.000	STM32L431RB	SMD/SMT	WLCSP-64	ARM Cortex M4	128 kB	32 bit	12 bit	80 MHz	52 I/O	64 kB	1.71 V	3.6 V	- 40 C	+ 85 C	Reel