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256 kB ARM Microcontrollers - MCU

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (HKD) 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 Mainstream Arm Cortex-M4 MCU 170MHz 256Kbytes of Flash Math Accel, High Analog l STM32G473VCT6 STMicroelectronics Restricted Availability	Mfr. Part No. STM32G473VCT6 Mouser Part No 511-STM32G473VCT6	STMicroelectronics	ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170MHz 256Kbytes of Flash Math Accel, High Analog l Learn More about STMicroelectronics stm stm32g4 mcus Mouser does not sell this product in your region.	Datasheet	More Info Available		Restricted Availability	STM32G4	SMD/SMT	LQFP-100	ARM Cortex M4	256 kB	32 bit	5 x 12 bit	170 MHz	86 I/O	128 kB	1.71 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Mainstream Arm Cortex-M4+ MCU 170MHz with 256Kbytes of Flash memory STM32G491CCU6 STMicroelectronics Restricted Availability	Mfr. Part No. STM32G491CCU6 Mouser Part No 511-STM32G491CCU6	STMicroelectronics	ARM Microcontrollers - MCU Mainstream Arm Cortex-M4+ MCU 170MHz with 256Kbytes of Flash memory Learn More about STMicroelectronics stm stm32g4 mcus Mouser does not sell this product in your region.	Datasheet	More Info Available		Restricted Availability	STM32G4	SMD/SMT	UFQFPN-48	ARM Cortex M4	256 kB	32 bit	4 x 12 bit	170 MHz	42 I/O	112 kB	1.71 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power 32-bit Value Line Arm Cortex-M3 MCU 256 Kbytes of Flash 32 MHz C STM32L100RCT6TR STMicroelectronics Restricted Availability	Mfr. Part No. STM32L100RCT6TR Mouser Part No 511-STM32L100RCT6TR	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power 32-bit Value Line Arm Cortex-M3 MCU 256 Kbytes of Flash 32 MHz C Learn More about STMicroelectronics stm32l1 Mouser does not sell this product in your region.	Datasheet	More Info Available		Restricted Availability	STM32L100RC	SMD/SMT	LQFP-64	ARM Cortex M3	256 kB	32 bit	12 bit	32 MHz	51 I/O	16 kB	1.8 V	3.6 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 256 Kbytes of Flash 32 MHz CPU, USB, 2xOp-amp STM32L151CCT6TR STMicroelectronics Restricted Availability	Mfr. Part No. STM32L151CCT6TR Mouser Part No 511-STM32L151CCT6TR	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 256 Kbytes of Flash 32 MHz CPU, USB, 2xOp-amp Learn More about STMicroelectronics stm32l1 Mouser does not sell this product in your region.	Datasheet	More Info Available		Restricted Availability	STM32L151CC	SMD/SMT	LQFP-48	ARM Cortex M3	256 kB	32 bit	12 bit	32 MHz	37 I/O	32 kB	1.65 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 256 Kbytes of Flash STM32L431CCU6 STMicroelectronics Restricted Availability	Mfr. Part No. STM32L431CCU6 Mouser Part No 511-STM32L431CCU6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash Learn More about STMicroelectronics stm stm32l4 mcu fpu Mouser does not sell this product in your region.	Datasheet	More Info Available		Restricted Availability	STM32L431CC	SMD/SMT	UFQFPN-48	ARM Cortex M4	256 kB	32 bit	12 bit	80 MHz	38 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 256 Kbytes of Flash STM32L431CCU6TR STMicroelectronics Restricted Availability	Mfr. Part No. STM32L431CCU6TR Mouser Part No 511-STM32L431CCU6TR	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash Learn More about STMicroelectronics stm stm32l4 mcu fpu Mouser does not sell this product in your region.	Datasheet	More Info Available		Restricted Availability	STM32L431CC	SMD/SMT	UFQFPN-48	ARM Cortex M4	256 kB	32 bit	12 bit	80 MHz	38 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 256 Kbytes of Flash STM32L431CCY6TR STMicroelectronics Restricted Availability	Mfr. Part No. STM32L431CCY6TR Mouser Part No 511-STM32L431CCY6TR	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash Learn More about STMicroelectronics stm stm32l4 mcu fpu Mouser does not sell this product in your region.	Datasheet	More Info Available		Restricted Availability	STM32L431CC	SMD/SMT	WLCSP-48	ARM Cortex M4	256 kB	32 bit	12 bit	80 MHz	38 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 256 Kbytes of Flash STM32L431VCI6 STMicroelectronics Restricted Availability	Mfr. Part No. STM32L431VCI6 Mouser Part No 511-STM32L431VCI6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash Learn More about STMicroelectronics stm stm32l4 mcu fpu Mouser does not sell this product in your region.	Datasheet	More Info Available		Restricted Availability	STM32L431VC	SMD/SMT	UFBGA-100	ARM Cortex M4	256 kB	32 bit	12 bit	80 MHz	83 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 256 Kbytes of Flash , USB STM32L432KCU3 STMicroelectronics Restricted Availability	Mfr. Part No. STM32L432KCU3 Mouser Part No 511-STM32L432KCU3	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash , USB Learn More about STMicroelectronics stm stm32l4 mcu fpu Mouser does not sell this product in your region.	Datasheet	More Info Available		Restricted Availability	STM32L432KC	SMD/SMT	UFQFPN-32	ARM Cortex M4	256 kB	32 bit	12 bit	80 MHz	26 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 256 Kbytes of Flash , LCD, USB STM32L433CCU6 STMicroelectronics Restricted Availability	Mfr. Part No. STM32L433CCU6 Mouser Part No 511-STM32L433CCU6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash , LCD, USB Learn More about STMicroelectronics stm stm32l4 mcu fpu Mouser does not sell this product in your region.	Datasheet	More Info Available		Restricted Availability	STM32L433CC	SMD/SMT	UFQFPN-48	ARM Cortex M4	256 kB	32 bit	12 bit	80 MHz	38 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 256 Kbytes of Flash , LCD, USB STM32L433RCT3 STMicroelectronics Restricted Availability	Mfr. Part No. STM32L433RCT3 Mouser Part No 511-STM32L433RCT3	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash , LCD, USB Learn More about STMicroelectronics stm stm32l4 mcu fpu Mouser does not sell this product in your region.	Datasheet	More Info Available		Restricted Availability	STM32L433RC	SMD/SMT	LQFP-64	ARM Cortex M4	256 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 256 Kbytes of Flash , LCD, USB STM32L433RCT6P STMicroelectronics Restricted Availability	Mfr. Part No. STM32L433RCT6P Mouser Part No 511-STM32L433RCT6P	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash , LCD, USB Learn More about STMicroelectronics stm stm32l4 mcu fpu Mouser does not sell this product in your region.	Datasheet	More Info Available		Restricted Availability	STM32L433RC	SMD/SMT	LQFP-64	ARM Cortex M4	256 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 256 Kbytes of Flash , LCD, USB STM32L433RCT6TR STMicroelectronics Restricted Availability	Mfr. Part No. STM32L433RCT6TR Mouser Part No 511-STM32L433RCT6TR	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash , LCD, USB Learn More about STMicroelectronics stm stm32l4 mcu fpu Mouser does not sell this product in your region.	Datasheet	More Info Available		Restricted Availability	STM32L433RC	SMD/SMT	LQFP-64	ARM Cortex M4	256 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 256 Kbytes of Flash , LCD, USB STM32L433VCT6 STMicroelectronics Restricted Availability	Mfr. Part No. STM32L433VCT6 Mouser Part No 511-STM32L433VCT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash , LCD, USB Learn More about STMicroelectronics stm stm32l4 mcu fpu Mouser does not sell this product in your region.	Datasheet	More Info Available		Restricted Availability	STM32L433VC	SMD/SMT	LQFP-100	ARM Cortex M4	256 kB	32 bit	12 bit	80 MHz	83 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 256 Kbytes of Flash , LCD, USB STM32L433VCT6TR STMicroelectronics Restricted Availability	Mfr. Part No. STM32L433VCT6TR Mouser Part No 511-STM32L433VCT6TR	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash , LCD, USB Learn More about STMicroelectronics stm stm32l4 mcu fpu Mouser does not sell this product in your region.	Datasheet	More Info Available		Restricted Availability	STM32L433VC	SMD/SMT	LQFP-100	ARM Cortex M4	256 kB	32 bit	12 bit	80 MHz	83 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 256 Kbytes of Flash LCD, USB, AES-2 STM32L443VCT6 STMicroelectronics 1: HK$72.83 36In Stock 1,080On Order	Mfr. Part No. STM32L443VCT6 Mouser Part No 511-STM32L443VCT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash LCD, USB, AES-2 Learn More about STMicroelectronics stm stm32l4 mcu fpu	Datasheet	36In Stock 1,080On Order	HK$72.83 HK$50.88 HK$48.50 HK$41.26 HK$39.46	Min.: 1 Mult.: 1 Max.: 250	STM32L443VC	SMD/SMT	LQFP-100	ARM Cortex M4	256 kB	32 bit	12 bit	80 MHz	83 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 256 kbytes of Flash USB Device, DFS STM32L452RCT6 STMicroelectronics Restricted Availability	Mfr. Part No. STM32L452RCT6 Mouser Part No 511-STM32L452RCT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 kbytes of Flash USB Device, DFS Learn More about STMicroelectronics stm stm32l4 mcu fpu Mouser does not sell this product in your region.	Datasheet	More Info Available		Restricted Availability	STM32L452RC	SMD/SMT	LQFP-64	ARM Cortex M4	256 kB	32 bit	12 bit	80 MHz	52 I/O	160 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 256 kbytes of Flash USB Device, DFS STM32L452VCI6 STMicroelectronics Restricted Availability	Mfr. Part No. STM32L452VCI6 Mouser Part No 511-STM32L452VCI6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 kbytes of Flash USB Device, DFS Learn More about STMicroelectronics stm stm32l4 mcu fpu Mouser does not sell this product in your region.	Datasheet	More Info Available		Restricted Availability	STM32L452VC	SMD/SMT	UFBGA-100	ARM Cortex M4	256 kB	32 bit	12 bit	80 MHz	83 I/O	160 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 256 Kbytes of Flash USB OTG, DFSDM STM32L475RCT3 STMicroelectronics Restricted Availability	Mfr. Part No. STM32L475RCT3 Mouser Part No 511-STM32L475RCT3	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash USB OTG, DFSDM Learn More about STMicroelectronics stm stm32l4 mcu fpu Mouser does not sell this product in your region.	Datasheet	More Info Available		Restricted Availability	STM32L475RC	SMD/SMT	LQFP-64	ARM Cortex M4	256 kB	32 bit	3 x 12 bit	80 MHz	51 I/O	128 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 256 Kbytes of Flash LCD, USB OTG, D STM32L476RCT6 STMicroelectronics Restricted Availability	Mfr. Part No. STM32L476RCT6 Mouser Part No 511-STM32L476RCT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash LCD, USB OTG, D Learn More about STMicroelectronics stm stm32l4 mcu fpu Mouser does not sell this product in your region.	Datasheet	More Info Available		Restricted Availability	STM32L476RC	SMD/SMT	LQFP-64	ARM Cortex M4	256 kB	32 bit	3 x 12 bit	80 MHz	51 I/O	128 kB	1.71 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 256-Kbytes Flash LCD, USB, 48 MHz CPU STM32U073KCU6 STMicroelectronics Restricted Availability	Mfr. Part No. STM32U073KCU6 Mouser Part No 511-STM32U073KCU6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 256-Kbytes Flash LCD, USB, 48 MHz CPU Learn More about STMicroelectronics stm stm32u0 low power mcus Mouser does not sell this product in your region.	Datasheet	More Info Available		Restricted Availability	STM32U0	SMD/SMT		ARM Cortex M0+	256 kB	32 bit		48 MHz			1.8 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 MCU TrustZone, 160 MHz 256 Kbytes Flash STM32U535VCI6Q STMicroelectronics Restricted Availability	Mfr. Part No. STM32U535VCI6Q Mouser Part No 511-STM32U535VCI6Q	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 MCU TrustZone, 160 MHz 256 Kbytes Flash Learn More about STMicroelectronics stmicro stm32u5 Mouser does not sell this product in your region.	Datasheet			Restricted Availability	STM32U5	SMD/SMT	UFBGA-100	ARM Cortex M33	256 kB	32 bit	12 bit	160 MHz		274 kB	1.71 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Sub-GHz Wireless MCU Single-core Arm Cortex-M0+ a.64 MHz 256 Kb Flash 32 Kb SRAM STM32WL33CCV6A STMicroelectronics 1: HK$50.80 37In Stock	Mfr. Part No. STM32WL33CCV6A Mouser Part No 511-STM32WL33CCV6A	STMicroelectronics	ARM Microcontrollers - MCU Sub-GHz Wireless MCU Single-core Arm Cortex-M0+ a.64 MHz 256 Kb Flash 32 Kb SRAM Learn More about STMicroelectronics stm32wl3x mcus	Datasheet	37In Stock	HK$50.80 HK$41.92 HK$40.03 HK$35.92 View HK$35.10 HK$34.94 Quote	Min.: 1 Mult.: 1		SMD/SMT	VQFN-48	ARM Cortex M0+	256 kB	32 bit	12 bit	64 MHz	32 I/O	32 kB	1.7 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Sub-GHz Wireless MCU Single-core Arm Cortex-M0+ 64 MHz 256 Kb Flash 32 Kb SRAM STM32WL33CCV7 STMicroelectronics 1: HK$55.24 22In Stock	Mfr. Part No. STM32WL33CCV7 Mouser Part No 511-STM32WL33CCV7	STMicroelectronics	ARM Microcontrollers - MCU Sub-GHz Wireless MCU Single-core Arm Cortex-M0+ 64 MHz 256 Kb Flash 32 Kb SRAM Learn More about STMicroelectronics stm32wl33x mcus	Datasheet	22In Stock	HK$55.24 HK$47.76 HK$44.31 HK$40.85 View HK$38.80 HK$37.32	Min.: 1 Mult.: 1	STM32WL33	SMD/SMT	VFQFPN-48	ARM Cortex M0+	256 kB	32 bit	12 bit	64 MHz	32 I/O	32 KB	1.7 V	3.6 V	- 40 C	+ 105 C	Tray
ARM Microcontrollers - MCU Multiprotocol LPWAN 32-bit Arm Cortex-M4 MCUs LoRa (G)FSK-MSK BPSK 256KB Flash STM32WLE5CCU6 STMicroelectronics 1: HK$82.20 1,619In Stock 6,240Expected 13/11/2026	Mfr. Part No. STM32WLE5CCU6 Mouser Part No 511-STM32WLE5CCU6	STMicroelectronics	ARM Microcontrollers - MCU Multiprotocol LPWAN 32-bit Arm Cortex-M4 MCUs LoRa (G)FSK-MSK BPSK 256KB Flash Learn More about STMicroelectronics stm stm32wle4xx stm32wle5xx mcus	Datasheet	1,619In Stock 6,240Expected 13/11/2026	HK$82.20 HK$66.25 HK$63.05 HK$56.06 View HK$53.35 HK$50.80 Quote	Min.: 1 Mult.: 1	STM32WL	SMD/SMT	UFQFPN-48	ARM Cortex M4	256 kB	32 bit	12 bit	48 MHz	43 I/O	64 kB	1.8 V	3.6 V	- 40 C	+ 105 C	Tray