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256 kB ARM Microcontrollers - MCU

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) 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	Qualification	Packaging
ARM Microcontrollers - MCU 64TQFP,85C TEMP, GREEN, 5V, 48MHZ, T&R ATSAMC21J18A-AUT Microchip Technology 1: $6.08 1,751In Stock 7,500Expected 1/7/2027	Mfr. Part # ATSAMC21J18A-AUT Mouser Part # 556-ATSAMC21J18A-AUT	Microchip Technology	ARM Microcontrollers - MCU 64TQFP,85C TEMP, GREEN, 5V, 48MHZ, T&R Learn More about Microchip Technology atmel smart samc mcu	Datasheet	1,751In Stock 7,500Expected 1/7/2027	Cut Tape $6.08 $5.89 Reel $5.01 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	ATSAMC21	SMD/SMT	TQFP-64	ARM Cortex M0+	256 kB	32 bit	2 x 12 bit	48 MHz	52 I/O	32 kB	2.7 V	5.5 V	- 40 C	+ 85 C	AEC-Q100	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU Cortex-M0+ 256KB FLASH 32KB SRAM ATSAMD20G18A-AU Microchip Technology 1: $4.30 1,282In Stock	Mfr. Part # ATSAMD20G18A-AU Mouser Part # 556-ATSAMD20G18A-AU	Microchip Technology	ARM Microcontrollers - MCU Cortex-M0+ 256KB FLASH 32KB SRAM Learn More about Microchip Technology atmel samd20 mcu	Datasheet	1,282In Stock	$4.30 $3.90 $3.54	Min.: 1 Mult.: 1	SAMD1/2x	SMD/SMT	TQFP-48	ARM Cortex M0+	256 kB	32 bit	12 bit	48 MHz	38 I/O	32 kB	1.62 V	1.95 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU Cortex-M0+ 256KB FLASH 32KB SRAM ATSAMD20J18A-AU Microchip Technology 1: $4.52 1,503In Stock	Mfr. Part # ATSAMD20J18A-AU Mouser Part # 556-ATSAMD20J18A-AU	Microchip Technology	ARM Microcontrollers - MCU Cortex-M0+ 256KB FLASH 32KB SRAM Learn More about Microchip Technology atmel samd20 mcu	Datasheet	1,503In Stock	$4.52 $4.10 $3.74	Min.: 1 Mult.: 1	SAMD1/2x	SMD/SMT	TQFP-64	ARM Cortex M0+	256 kB	32 bit	12 bit	48 MHz	52 I/O	32 kB	1.62 V	1.95 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU Cortex-M0+ 256KB FLASH 32KB SRAM ATSAMD20J18A-AUT Microchip Technology 1: $4.62 1,663In Stock	Mfr. Part # ATSAMD20J18A-AUT Mouser Part # 556-ATSAMD20J18A-AUT	Microchip Technology	ARM Microcontrollers - MCU Cortex-M0+ 256KB FLASH 32KB SRAM Learn More about Microchip Technology atmel samd20 mcu	Datasheet	1,663In Stock	Cut Tape $4.62 $4.46 Reel $3.80 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	SAMD1/2x	SMD/SMT	TQFP-64	ARM Cortex M0+	256 kB	32 bit	12 bit	48 MHz	52 I/O	32 kB	1.62 V	1.95 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 48TQFP 125C, GREEN,1.6-3.6V,48MHz ATSAMD21G18A-AFT Microchip Technology 1: $6.05 1,126In Stock	Mfr. Part # ATSAMD21G18A-AFT Mouser Part # 556-ATSAMD21G18A-AFT	Microchip Technology	ARM Microcontrollers - MCU 48TQFP 125C, GREEN,1.6-3.6V,48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	1,126In Stock	Cut Tape $6.05 $5.84 Reel $4.98 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SAMD21	SMD/SMT	TQFP-48	ARM Cortex M0+	256 kB	32 bit	12 bit	48 MHz	38 I/O	32 kB	1.62 V	3.63 V	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 256KB 32KB 48TQFP GRN1.6-3.6V48MHz ATSAMD21G18A-AU Microchip Technology 1: $5.41 1,596In Stock	Mfr. Part # ATSAMD21G18A-AU Mouser Part # 556-ATSAMD21G18A-AU	Microchip Technology	ARM Microcontrollers - MCU 256KB 32KB 48TQFP GRN1.6-3.6V48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	1,596In Stock	$5.41 $4.91 $4.46	Min.: 1 Mult.: 1	SAMD21	SMD/SMT	TQFP-48	ARM Cortex M0+	256 kB	32 bit	12 bit	48 MHz	38 I/O	32 kB	1.62 V	3.63 V	- 40 C	+ 85 C	AEC-Q100	Tray
ARM Microcontrollers - MCU 64TQFP 125C, GREEN,1.6-3.6V,48MHz ATSAMD21J18A-AF Microchip Technology 1: $6.27 2,202In Stock	Mfr. Part # ATSAMD21J18A-AF Mouser Part # 556-ATSAMD21J18A-AF	Microchip Technology	ARM Microcontrollers - MCU 64TQFP 125C, GREEN,1.6-3.6V,48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	2,202In Stock	$6.27 $5.69 $5.16	Min.: 1 Mult.: 1	SAMD21	SMD/SMT	TQFP-64	ARM Cortex M0+	256 kB	32 bit	12 bit	48 MHz	52 I/O	32 kB	1.62 V	3.63 V	- 40 C	+ 125 C	AEC-Q100	Tray
ARM Microcontrollers - MCU 256KB 32KB 64TQFP GRN1.6-3.6V48MHz ATSAMD21J18A-AU Microchip Technology 1: $5.69 2,035In Stock	Mfr. Part # ATSAMD21J18A-AU Mouser Part # 556-ATSAMD21J18A-AU	Microchip Technology	ARM Microcontrollers - MCU 256KB 32KB 64TQFP GRN1.6-3.6V48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	2,035In Stock	$5.69 $5.19 $4.67	Min.: 1 Mult.: 1	SAMD21	SMD/SMT	TQFP-64	ARM Cortex M0+	256 kB	32 bit	12 bit	48 MHz	52 I/O	32 kB	1.62 V	3.63 V	- 40 C	+ 85 C	AEC-Q100	Tray
ARM Microcontrollers - MCU 120MHZ 256KB FLASH 4 8 QFN PKG IN 85C ATSAMD51G18A-MUT Microchip Technology 1: $6.34 356In Stock	Mfr. Part # ATSAMD51G18A-MUT Mouser Part # 556-ATSAMD51G18AMUT	Microchip Technology	ARM Microcontrollers - MCU 120MHZ 256KB FLASH 4 8 QFN PKG IN 85C Learn More about Microchip Technology microchip sam d5 e5	Datasheet	356In Stock	Cut Tape $6.34 $6.23 Reel $5.28	Min.: 1 Mult.: 1 : 4,000	ATSAMD51	SMD/SMT	QFN-48	ARM Cortex M4F	256 kB	32 bit	12 bit	120 MHz	37 I/O	128 kB	1.71 V	3.6 V	- 40 C	+ 85 C	AEC-Q100	Reel, Cut Tape
ARM Microcontrollers - MCU ARM Cortex-M0+ 256K Flash/32k SRAM ATSAML21E18B-AUT Microchip Technology 1: $7.87 1,729In Stock	Mfr. Part # ATSAML21E18B-AUT Mouser Part # 556-ATSAML21E18B-AUT	Microchip Technology	ARM Microcontrollers - MCU ARM Cortex-M0+ 256K Flash/32k SRAM Learn More about Microchip Technology microchip sam l21 mcus	Datasheet	1,729In Stock	Cut Tape $7.87 $7.62 Reel $6.47 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	SAML21	SMD/SMT	TQFP-32	ARM Cortex M0+	256 kB	32 bit	12 bit	48 MHz	25 I/O	32 kB	1.62 V	3.63 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 100TQFP 85C, GREEN,1.6-3.6V,32MHz ATSAML22N18A-AUT Microchip Technology 1: $7.87 1,696In Stock	Mfr. Part # ATSAML22N18A-AUT Mouser Part # 556-ATSAML22N18A-AUT	Microchip Technology	ARM Microcontrollers - MCU 100TQFP 85C, GREEN,1.6-3.6V,32MHz Learn More about Microchip Technology atmel sam l22	Datasheet	1,696In Stock	Cut Tape $7.87 $7.58 Reel $6.47	Min.: 1 Mult.: 1 : 1,000	SAML22	SMD/SMT	TQFP-100	ARM Cortex M0+	256 kB	32 bit	12 bit	32 MHz	82 I/O	32 kB	1.62 V	3.63 V	- 40 C	+ 85 C		Reel, Cut Tape
ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB EFM32LG330F256G-F-QFN64 Silicon Labs 1: $15.69 1,407In Stock	Mfr. Part # EFM32LG330F256G-F-QFN64 Mouser Part # 634-32LG330F256GFQFN	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	1,407In Stock	$15.69 $12.61 $11.48 $10.75 View $10.43 $9.95 $9.45 Quote	Min.: 1 Mult.: 1	EFM32LG	SMD/SMT	QFN-64	ARM Cortex M3	256 kB	32 bit	12 bit	48 MHz	53 I/O	32 kB	1.98 V	3.8 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU ARM Cortex-M4 32-bit 40 MHz 256 kB MCU EFM32PG1B100F256GM32-C0 Silicon Labs 1: $7.76 436In Stock 2,450Expected 11/17/2026	Mfr. Part # EFM32PG1B100F256GM32-C0 Mouser Part # 634-PG1B100F256GM320	Silicon Labs	ARM Microcontrollers - MCU ARM Cortex-M4 32-bit 40 MHz 256 kB MCU Learn More about Silicon Labs silabs efm32 pearl gecko mcu	Datasheet	436In Stock 2,450Expected 11/17/2026	$7.76 $6.15 $5.54 $5.10 View $4.71 $4.68 $4.55	Min.: 1 Mult.: 1	EFM32PG	SMD/SMT	QFN-32	ARM Cortex M4	256 kB	32 bit	12 bit	40 MHz	24 I/O	32 kB	1.85 V	3.8 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU ARM Cortex-M33 32-bit 80 MHz 256 kB AES MCU EFM32PG23B200F256IM40-C Silicon Labs 1: $5.12 3,374In Stock	Mfr. Part # EFM32PG23B200F256IM40-C Mouser Part # 634-PG23200F256IM40C	Silicon Labs	ARM Microcontrollers - MCU ARM Cortex-M33 32-bit 80 MHz 256 kB AES MCU Learn More about Silicon Labs efm32pg23 microcontrollers	Datasheet	3,374In Stock	$5.12 $4.15 $3.77 $3.39 View $2.93 $2.83 $2.82	Min.: 1 Mult.: 1	PG23	SMD/SMT	QFN-40	ARM Cortex M33	256 kB	32 bit	12 bit/16 bit/20 bit	80 MHz	29 I/O	64 kB	1.71 V	3.8 V	- 40 C	+ 125 C		Tray
ARM Microcontrollers - MCU ARM Cortex-M33 32-bit 80 MHz 256 kB AES MCU EFM32PG23B210F256IM48-C Silicon Labs 1: $5.11 2,501In Stock	Mfr. Part # EFM32PG23B210F256IM48-C Mouser Part # 634-PG23210F256IM48C	Silicon Labs	ARM Microcontrollers - MCU ARM Cortex-M33 32-bit 80 MHz 256 kB AES MCU Learn More about Silicon Labs efm32pg23 microcontrollers	Datasheet	2,501In Stock	$5.11 $3.81 $3.48 $3.13 View $2.95 $2.89 $2.74 $2.65 $2.60	Min.: 1 Mult.: 1	PG23	SMD/SMT	QFN-48	ARM Cortex M33	256 kB	32 bit	12 bit/16 bit/20 bit	80 MHz	34 I/O	64 kB	1.71 V	3.8 V	- 40 C	+ 125 C		Tray
ARM Microcontrollers - MCU PSoC 4 L-Series 256 kb Flash CY8C4248AZI-L475 Infineon Technologies 1: $16.28 580In Stock	Mfr. Part # CY8C4248AZI-L475 Mouser Part # 727-CY8C4248AZI-L475	Infineon Technologies	ARM Microcontrollers - MCU PSoC 4 L-Series 256 kb Flash Learn More about Infineon Technologies cypress psoc 4l soc	Datasheet	580In Stock	$16.28 $12.77 $11.36 $10.67 View $10.62 $10.10 $9.98 Quote	Min.: 1 Mult.: 1	PSOC 4200	SMD/SMT	TQFP-64	ARM Cortex M0	256 kB	32 bit	12 bit	48 MHz	53 I/O	32 kB	1.71 V	5.5 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU PSoC 4 L-Series 256 kb Flash CY8C4248AZI-L485 Infineon Technologies 1: $17.52 976In Stock	Mfr. Part # CY8C4248AZI-L485 Mouser Part # 727-CY8C4248AZI-L485	Infineon Technologies	ARM Microcontrollers - MCU PSoC 4 L-Series 256 kb Flash Learn More about Infineon Technologies cypress psoc 4l soc	Datasheet	976In Stock	$17.52 $13.78 $12.27 $11.54 View $11.51 $10.82 $10.57 Quote	Min.: 1 Mult.: 1	PSOC 4200	SMD/SMT	TQFP-64	ARM Cortex M0	256 kB	32 bit	12 bit	48 MHz	53 I/O	32 kB	1.71 V	5.5 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU PSoC4 CY8C4248BZI-L469 Infineon Technologies 1: $14.61 322In Stock	Mfr. Part # CY8C4248BZI-L469 Mouser Part # 727-CY8C4248BZI-L469	Infineon Technologies	ARM Microcontrollers - MCU PSoC4 Learn More about Infineon Technologies cypress psoc 4l soc	Datasheet	322In Stock	$14.61 $11.43 $10.14 $9.75 View $9.31 $9.05 $8.53 Quote	Min.: 1 Mult.: 1	PSOC 4200	SMD/SMT	VFBGA-124	ARM Cortex M0	256 kB	32 bit	12 bit	48 MHz	96 I/O	32 kB	1.71 V	5.5 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU IOT-PSOC6 CY8C6244AZI-S4D93 Infineon Technologies 1: $8.29 1,697In Stock	Mfr. Part # CY8C6244AZI-S4D93 Mouser Part # 727-CY8C6244AZIS4D93	Infineon Technologies	ARM Microcontrollers - MCU IOT-PSOC6 Learn More about Infineon Technologies infineon psoc 62 mcus	Datasheet	1,697In Stock	$8.29 $6.36 $5.58 $5.29 View $5.28 $5.01 $4.64 Quote	Min.: 1 Mult.: 1	PSOC 62	SMD/SMT	TQFP-80	ARM Cortex M0+, ARM Cortex M4	256 kB	32 bit	12 bit	100 MHz, 150 MHz	62 I/O	128 kB	1.7 V	3.6 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU Smart Sensor ASSP/ASIC with 256kB Flash ADUCM356BCCZ Analog Devices 1: $42.39 153In Stock	Mfr. Part # ADUCM356BCCZ Mouser Part # 584-ADUCM356BCCZ	Analog Devices	ARM Microcontrollers - MCU Smart Sensor ASSP/ASIC with 256kB Flash Learn More about Analog Devices adi aducm356 microcontrollers	Datasheet	153In Stock	$42.39 $35.71 $34.10 $30.50 View $28.50 $28.25 Quote	Min.: 1 Mult.: 1	ADUCM356	SMD/SMT	LGA-72	ARM Cortex M3	256 kB	32 bit	16 bit	26 MHz	17 I/O	64 kB	2.8 V	3.6 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU High-performance Arm Cortex-M33 MCU 256-Kbyte Flash 272-Kbyte RAM 250 MHz CPU STM32H523CCU6 STMicroelectronics 1: $6.72 65In Stock 7,800Expected 12/21/2026	Mfr. Part # STM32H523CCU6 Mouser Part # 511-STM32H523CCU6	STMicroelectronics	ARM Microcontrollers - MCU High-performance Arm Cortex-M33 MCU 256-Kbyte Flash 272-Kbyte RAM 250 MHz CPU Learn More about STMicroelectronics stm stm32h5 mcus	Datasheet	65In Stock 7,800Expected 12/21/2026	$6.72 $4.81 $4.36 $3.97 View $3.93 $3.60	Min.: 1 Mult.: 1	STM32H5	SMD/SMT	UFQFPN-48	ARM Cortex M33	256 kB	32 bit	12 bit	250 MHz		272 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 STM32U073MCT6 STMicroelectronics 1: $6.75 147In Stock 714Expected 6/7/2027	Mfr. Part # STM32U073MCT6 Mouser Part # 511-STM32U073MCT6	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	Datasheet	147In Stock 714Expected 6/7/2027	$6.75 $4.42 $3.95 $3.67	Min.: 1 Mult.: 1 Max.: 250	STM32U0			ARM Cortex M0	256 kB			48 MHz								Tray
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 256-Kbytes Flash LCD, USB, AES, 48 MHz CPU STM32U083RCT6 STMicroelectronics 1: $5.71 72In Stock 14,400On Order	Mfr. Part # STM32U083RCT6 Mouser Part # 511-STM32U083RCT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 256-Kbytes Flash LCD, USB, AES, 48 MHz CPU Learn More about STMicroelectronics stm stm32u0 low power mcus	Datasheet	72In Stock 14,400On Order On Order Ship Dates Mfr. #: STM32U083RCT6 Stock: 72 Can Ship Immediately On Order: 6,720 Expected 11/12/2026 7,680 Expected 4/19/2027 Factory Lead-Time: 52 Weeks	$5.71 $4.30 $3.74 $3.47 View $3.45 $3.19 $3.17	Min.: 1 Mult.: 1 Max.: 960	STM32U0			ARM Cortex M0	256 kB			48 MHz								Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 MCU TrustZone, 160 MHz 256 Kbytes Flash STM32U535CCU6Q STMicroelectronics 1: $9.49 70In Stock	Mfr. Part # STM32U535CCU6Q Mouser Part # 511-STM32U535CCU6Q	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 MCU TrustZone, 160 MHz 256 Kbytes Flash Learn More about STMicroelectronics stmicro stm32u5	Datasheet	70In Stock	$9.49 $7.28 $6.40 $6.12 View $6.07 $5.51 $5.15 $5.07 Quote	Min.: 1 Mult.: 1	STM32U5	SMD/SMT	UFQFPN-48	ARM Cortex M33	256 kB	32 bit	12 bit, 14 bit	160 MHz	33 I/O	574 kB	1.71 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 STM32U535RCI6Q STMicroelectronics 1: $10.92 76In Stock	Mfr. Part # STM32U535RCI6Q Mouser Part # 511-STM32U535RCI6Q	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 MCU TrustZone, 160 MHz 256 Kbytes Flash Learn More about STMicroelectronics stmicro stm32u5	Datasheet	76In Stock	$10.92 $8.00 $7.35 $6.67 View $6.51 $6.12 $6.05 Quote	Min.: 1 Mult.: 1	STM32U5	SMD/SMT	UFBGA-64	ARM Cortex M33	256 kB	32 bit	12 bit	160 MHz		274 kB	1.71 V	3.6 V	- 40 C	+ 85 C		Tray