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256 kB Microcontrollers - MCU

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Program Memory Size = 256 kB

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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.	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 64QFN,85C TEMP, GREEN, 5V, 48MHZ, T&R ATSAMC21J18A-MUT Microchip Technology 1: $4.60 4,101In Stock	Mfr. Part # ATSAMC21J18A-MUT Mouser Part # 556-ATSAMC21J18A-MUT	Microchip Technology	ARM Microcontrollers - MCU 64QFN,85C TEMP, GREEN, 5V, 48MHZ, T&R Learn More about Microchip Technology atmel smart samc mcu	Datasheet	4,101In Stock	Cut Tape $4.60 $4.46 Reel $3.79 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	SMD/SMT	QFN-64	ARM Cortex M0+	256 kB	32 bit	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 64KB 8KB32TQFP GRN 1.6-3.6V 48MHz ATSAMD21E18A-AUT Microchip Technology 1: $4.03 5,425In Stock	Mfr. Part # ATSAMD21E18A-AUT Mouser Part # 556-ATSAMD21E18A-AUT	Microchip Technology	ARM Microcontrollers - MCU 64KB 8KB32TQFP GRN 1.6-3.6V 48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	5,425In Stock	Cut Tape $4.03 $3.91 Reel $3.33 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	SMD/SMT	TQFP-32	ARM Cortex M0+	256 kB	32 bit	12 bit	48 MHz	26 I/O	32 kB	1.62 V	3.63 V	- 40 C	+ 85 C	AEC-Q100	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 256KB 32KB 48TQFP GRN1.6-3.6V48MHz ATSAMD21G18A-AUT Microchip Technology 1: $4.25 4,053In Stock	Mfr. Part # ATSAMD21G18A-AUT Mouser Part # 556-ATSAMD21G18A-AUT	Microchip Technology	ARM Microcontrollers - MCU 256KB 32KB 48TQFP GRN1.6-3.6V48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	4,053In Stock	Cut Tape $4.25 $4.11 $4.07 $4.03 $4.00 Reel $3.51 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	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	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 48QFN 125C, GREEN,1.6-3.6V,48MHz ATSAMD21G18A-MFT Microchip Technology 1: $4.57 11,001In Stock	Mfr. Part # ATSAMD21G18A-MFT Mouser Part # 556-ATSAMD21G18A-MFT	Microchip Technology	ARM Microcontrollers - MCU 48QFN 125C, GREEN,1.6-3.6V,48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	11,001In Stock	Cut Tape $4.57 $4.43 Reel $3.77 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	SMD/SMT	QFN-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 48QFN GRN1.6-3.6V48MHz ATSAMD21G18A-MUT Microchip Technology 1: $4.16 14,370In Stock	Mfr. Part # ATSAMD21G18A-MUT Mouser Part # 556-ATSAMD21G18A-MUT	Microchip Technology	ARM Microcontrollers - MCU 256KB 32KB 48QFN GRN1.6-3.6V48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	14,370In Stock	Cut Tape $4.16 $4.03 Reel $3.43 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	SMD/SMT	QFN-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	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU CM4, QFN48, 256KFlash,Tray, USB,Extended Temp ATSAMD51G18A-MF Microchip Technology 1: $5.24 4,838In Stock	Mfr. Part # ATSAMD51G18A-MF Mouser Part # 556-ATSAMD51G18A-MF	Microchip Technology	ARM Microcontrollers - MCU CM4, QFN48, 256KFlash,Tray, USB,Extended Temp Learn More about Microchip Technology microchip sam d5 e5	Datasheet	4,838In Stock	$5.24 $4.82 $4.35	Min.: 1 Mult.: 1	SMD/SMT	VQFN-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	+ 125 C	AEC-Q100	Tray
8-bit Microcontrollers - MCU 256KB FLASH 4KB EE 16K SRAM 3.6V ATXMEGA256D3-AU Microchip Technology 1: $7.50 2,909In Stock	Mfr. Part # ATXMEGA256D3-AU Mouser Part # 556-ATXMEGA256D3-AU	Microchip Technology	8-bit Microcontrollers - MCU 256KB FLASH 4KB EE 16K SRAM 3.6V	Datasheet	2,909In Stock	$7.50 $7.32	Min.: 1 Mult.: 1	SMD/SMT	TQFP-64	AVR	256 kB	8 bit/16 bit		32 MHz	50 I/O	16 kB	1.6 V	3.6 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU Mainstream Connectivity line, Arm Cortex-M3 MCU 256 Kbytes of Flash 72 MHz CPU, STM32F105RCT6V STMicroelectronics 1: $14.94 510In Stock NRND	Mfr. Part # STM32F105RCT6V Mouser Part # 511-STM32F105RCT6V NRND	STMicroelectronics	ARM Microcontrollers - MCU Mainstream Connectivity line, Arm Cortex-M3 MCU 256 Kbytes of Flash 72 MHz CPU, Learn More about STMicroelectronics stm32f1	Datasheet	510In Stock	$14.94 $11.71 $10.84 $10.01 View $9.66 $8.93	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	256 kB	32 bit	12 bit	72 MHz	51 I/O	64 kB	2 V	3.6 V	- 40 C	+ 85 C
ARM Microcontrollers - MCU Mainstream Connectivity line, Arm Cortex-M3 MCU 256 Kbytes of Flash 72 MHz CPU, STM32F105VCT6W STMicroelectronics 1: $13.91 333In Stock NRND	Mfr. Part # STM32F105VCT6W Mouser Part # 511-STM32F105VCT6W NRND	STMicroelectronics	ARM Microcontrollers - MCU Mainstream Connectivity line, Arm Cortex-M3 MCU 256 Kbytes of Flash 72 MHz CPU, Learn More about STMicroelectronics stm32f105	Datasheet	333In Stock	$13.91 $10.92 $9.41 $9.10 View $9.06 $8.40 $8.21 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	256 kB	32 bit	12 bit	72 MHz	80 I/O	64 kB	2 V	3.6 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32 MHz 256 Kbytes STM32WB55RCV7 STMicroelectronics 1: $7.75 1,555In Stock	Mfr. Part # STM32WB55RCV7 Mouser Part # 511-STM32WB55RCV7	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power dual core Arm Cortex-M4 MCU 64 MHz, Cortex-M0+ 32 MHz 256 Kbytes Learn More about STMicroelectronics stm stm32wb wireless mcu	Datasheet	1,555In Stock	$7.75 $6.72 $6.37 $5.87 View $5.58 $5.32 $4.86 Quote	Min.: 1 Mult.: 1	SMD/SMT	VFQFPN-68	ARM Cortex M4	256 kB	32 bit	12 bit	64 MHz	49 I/O	128 kB	1.71 V	3.6 V	- 40 C	+ 105 C		Tray
ARM Microcontrollers - MCU Automotive 80MHz ARM Cortex-M0+ MCU with M0G3518QPMRQ1 Texas Instruments 1: $4.39 166In Stock New Product	Mfr. Part # M0G3518QPMRQ1 Mouser Part # 595-M0G3518QPMRQ1 New Product	Texas Instruments	ARM Microcontrollers - MCU Automotive 80MHz ARM Cortex-M0+ MCU with Learn More about Texas Instruments ti mspm0g351x q1 mcus	Datasheet	166In Stock	Cut Tape $4.39 $3.32 $2.89 $2.76 Reel $2.46 View $2.54 $2.39 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	LQFP-64	ARM Cortex M0+	256 kB	32 bit	12 bit	48 MHz	60 I/O	128 kB	1.62 V	3.6 V	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU Automotive 32MHz Arm Cortex-M0+ MCU with M0L1228QPTRQ1 Texas Instruments 1: $3.16 594In Stock 2,000On Order New Product	Mfr. Part # M0L1228QPTRQ1 Mouser Part # 595-M0L1228QPTRQ1 New Product	Texas Instruments	ARM Microcontrollers - MCU Automotive 32MHz Arm Cortex-M0+ MCU with Learn More about Texas Instruments ti mspm0lx22x mixed signal mcus	Datasheet	594In Stock 2,000On Order On Order Ship Dates Mfr. #: M0L1228QPTRQ1 Stock: 594 Can Ship Immediately On Order: 1,000 Expected 1/7/2027 1,000 Expected 2/15/2027 Factory Lead-Time: 26 Weeks	Cut Tape $3.16 $2.36 $2.04 $1.94 Reel $1.58 View $1.77 $1.53 $1.50 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	LQFP-48	ARM Cortex M0+	256 kB	32 bit	12 bit	32 MHz	43 I/O	32 KB	1.62 V	3.6 V	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32MHz Arm Cortex-M0+ MCU with 256KB dual MSPM0L1228SPTR Texas Instruments 1: $3.73 688In Stock New Product	Mfr. Part # MSPM0L1228SPTR Mouser Part # 595-MSPM0L1228SPTR New Product	Texas Instruments	ARM Microcontrollers - MCU 32MHz Arm Cortex-M0+ MCU with 256KB dual Learn More about Texas Instruments ti mspm0lx22x mixed signal mcus	Datasheet	688In Stock	Cut Tape $3.73 $2.53 $2.34 $2.03 Reel $1.42 View $1.91 $1.67 $1.41 $1.37	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	LQFP-48	ARM Cortex M0+	256 kB	32 bit	12 bit	32 MHz	43 I/O	32 kB	1.62 V	3.6 V	- 40 C	+ 125 C		Reel, Cut Tape
ARM Microcontrollers - MCU 32MHz Arm Cortex-M0+ MCU with 256KB dual MSPM0L2228SPNR Texas Instruments 1: $4.64 741In Stock New Product	Mfr. Part # MSPM0L2228SPNR Mouser Part # 595-MSPM0L2228SPNR New Product	Texas Instruments	ARM Microcontrollers - MCU 32MHz Arm Cortex-M0+ MCU with 256KB dual Learn More about Texas Instruments ti mspm0lx22x mixed signal mcus	Datasheet	741In Stock	Cut Tape $4.64 $3.07 $2.80 $2.38 Reel $1.81 View $2.26 $2.03 $1.80 $1.75	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	LQFP-80	ARM Cortex M0+	256 kB	32 bit	12 bit	32 MHz	73 I/O	32 kB	1.62 V	3.6 V	- 40 C	+ 125 C		Reel, Cut Tape
ARM Microcontrollers - MCU High-performance, low-power 32-bit single-core Arm Cortex M33-based MCU PSC3M5FDS2ACQ1XQLA1 Infineon Technologies 1: $8.49 70In Stock New Product	Mfr. Part # PSC3M5FDS2ACQ1XQLA1 Mouser Part # 726-PSC3M5FDS2ACQ1XQ New Product	Infineon Technologies	ARM Microcontrollers - MCU High-performance, low-power 32-bit single-core Arm Cortex M33-based MCU Learn More about Infineon Technologies infineon psoc control c3 main line mcus	Datasheet	70In Stock	$8.49 $6.58 $5.81 $5.43 View $5.12 $5.05 $5.00 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M33	256 kB	32 bit	12 bit	180 MHz	50 I/O	64 kB	1.71 V	3.6 V	- 40 C	+ 105 C		Tray
ARM Microcontrollers - MCU TMPM4K4FYBUG(DBB) Toshiba 1: $3.53 158In Stock New Product	Mfr. Part # TMPM4K4FYBUG(DBB) Mouser Part # 757-TMPM4K4FYBUGDBB New Product	Toshiba	ARM Microcontrollers - MCU Learn More about Toshiba tmpm4k4 microcontroller	Datasheet	158In Stock	$3.53 $2.94 $2.58 $2.37 View $2.17 $2.10	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M4	256 kB	32 bit	12 bit	120 MHz	51 I/O	18 KB	2.7 V	5.5 V	- 40 C	+ 105 C
ARM Microcontrollers - MCU High-performance Arm Cortex-M33 MCU 256-Kbyte Flash 272-Kbyte RAM 250 MHz CPU STM32H523ZCT6 STMicroelectronics 1: $7.68 767In Stock 5,760On Order	Mfr. Part # STM32H523ZCT6 Mouser Part # 511-STM32H523ZCT6	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	767In Stock 5,760On Order On Order Ship Dates Mfr. #: STM32H523ZCT6 Stock: 767 Can Ship Immediately On Order: 1,080 Expected 11/12/2026 2,160 Expected 5/31/2027 2,520 Expected 7/12/2027 Factory Lead-Time: 52 Weeks	$7.68 $5.71 $5.14 $4.80 View $4.50 $4.37	Min.: 1 Mult.: 1	SMD/SMT	LQFP-144	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, AES, 48 MHz CPU STM32U083MCI6 STMicroelectronics 1: $4.69 1,828In Stock	Mfr. Part # STM32U083MCI6 Mouser Part # 511-STM32U083MCI6	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	1,828In Stock	$4.69 $3.49 $3.10 $2.92 $2.72	Min.: 1 Mult.: 1 Max.: 300			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 STM32U083MCT6 STMicroelectronics 1: $4.54 2,728In Stock	Mfr. Part # STM32U083MCT6 Mouser Part # 511-STM32U083MCT6	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	2,728In Stock	$4.54 $3.36 $2.99 $2.82 $2.60	Min.: 1 Mult.: 1 Max.: 500			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 STM32U083RCI6 STMicroelectronics 1: $5.11 2,527In Stock 2,940Expected 1/14/2027	Mfr. Part # STM32U083RCI6 Mouser Part # 511-STM32U083RCI6	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	2,527In Stock 2,940Expected 1/14/2027	$5.11 $3.39 $2.97 $2.67 View $2.66 $2.51	Min.: 1 Mult.: 1 Max.: 2,000			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: $4.94 2,285In Stock 6,720Expected 11/12/2026	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	2,285In Stock 6,720Expected 11/12/2026	$4.94 $3.58 $3.23 $2.78 View $2.63 $2.38 $2.37	Min.: 1 Mult.: 1 Max.: 960			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 STM32U535CCU6 STMicroelectronics 1: $7.30 1,981In Stock	Mfr. Part # STM32U535CCU6 Mouser Part # 511-STM32U535CCU6	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	1,981In Stock	$7.30 $5.60 $4.92 $4.71 View $4.67 $4.24 $4.15 $3.98 Quote	Min.: 1 Mult.: 1	SMD/SMT	UFQFPN-48	ARM Cortex M33	256 kB	32 bit	12 bit, 14 bit	160 MHz	37 I/O	574 kB	1.71 V	3.6 V	- 40 C	+ 85 C		Tray
32-bit Microcontrollers - MCU C2000 32-bit MCU wi th 120 MHz 256-KB f F2800137PM Texas Instruments 1: $5.15 1,130In Stock	Mfr. Part # F2800137PM Mouser Part # 595-F2800137PM	Texas Instruments	32-bit Microcontrollers - MCU C2000 32-bit MCU wi th 120 MHz 256-KB f Learn More about Texas Instruments ti tms320f280013x 32 bit mcus	Datasheet	1,130In Stock	$5.15 $3.92 $3.43 $3.19 View $3.18 $2.98 $2.88 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	C28x	256 kB	32 bit	12 bit	120 MHz	38 I/O	36 kB	1.14 V	1.32 V	- 40 C	+ 125 C
32-bit Microcontrollers - MCU C2000 32-bit MCU wi th 120 MHz 256-KB f F2800137PT Texas Instruments 1: $4.91 2,103In Stock	Mfr. Part # F2800137PT Mouser Part # 595-F2800137PT	Texas Instruments	32-bit Microcontrollers - MCU C2000 32-bit MCU wi th 120 MHz 256-KB f Learn More about Texas Instruments ti tms320f280013x 32 bit mcus	Datasheet	2,103In Stock	$4.91 $3.74 $3.26 $3.12 View $2.95 $2.86 $2.85 $2.75 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-48	C28x	256 kB	32 bit	12 bit	120 MHz	25 I/O	36 kB	1.14 V	1.32 V	- 40 C	+ 125 C
32-bit Microcontrollers - MCU TOPOAUTO AUTO F2800152QRHBRQ1 Texas Instruments 1: $3.79 2,746In Stock	Mfr. Part # F2800152QRHBRQ1 Mouser Part # 595-F2800152QRHBRQ1	Texas Instruments	32-bit Microcontrollers - MCU TOPOAUTO AUTO Learn More about Texas Instruments ti tms320f2850015x 32 bit mcus	Datasheet	2,746In Stock	$3.79 $2.85 $2.48 $2.36 View $2.16 $2.15 $2.02 $1.96	Min.: 1 Mult.: 1	SMD/SMT	VQFN-32	C28x	256 kB	32 bit	12 bit	100 MHz	18 I/O	36 kB	1.14 V	3.63 V	- 40 C	+ 125 C