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256 kB Microcontrollers - MCU

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) 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 Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash LCD, USB, AES-2 STM32L443RCT6 STMicroelectronics 1: 7,02 € 2 488In Stock	Mfr. Part No. STM32L443RCT6 Mouser Part No 511-STM32L443RCT6	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	2 488In Stock	7,02 € 5,15 € 4,80 € 4,22 € View 4,01 € 3,59 €	Min.: 1 Mult.: 1 Max.: 500	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 , DFSDM STM32L451RCT6 STMicroelectronics 1: 4,82 € 3 447In Stock	Mfr. Part No. STM32L451RCT6 Mouser Part No 511-STM32L451RCT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 kbytes of Flash , DFSDM Learn More about STMicroelectronics stm stm32l4 mcu fpu	Datasheet	3 447In Stock	4,82 € 3,84 € 3,59 € 3,35 € View 3,28 € 3,02 € 3,01 €	Min.: 1 Mult.: 1 Max.: 960	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 , DFSDM STM32L451VCT6 STMicroelectronics 1: 6,53 € 1 731In Stock	Mfr. Part No. STM32L451VCT6 Mouser Part No 511-STM32L451VCT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 kbytes of Flash , DFSDM Learn More about STMicroelectronics stm stm32l4 mcu fpu	Datasheet	1 731In Stock	6,53 € 4,66 € 4,29 € 4,05 € 3,94 €	Min.: 1 Mult.: 1 Max.: 500	SMD/SMT	LQFP-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 Device, DFS STM32L452CCU6 STMicroelectronics 1: 5,47 € 2 567In Stock	Mfr. Part No. STM32L452CCU6 Mouser Part No 511-STM32L452CCU6	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	Datasheet	2 567In Stock	5,47 € 4,18 € 3,67 € 3,51 € 3,24 €	Min.: 1 Mult.: 1 Max.: 500	SMD/SMT	QFN-48	ARM Cortex M4	256 kB	32 bit	12 bit	80 MHz	38 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 1: 7,57 € 491In Stock 960Expected 15/10/2026	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	Datasheet	491In Stock 960Expected 15/10/2026	7,57 € 5,86 € 5,17 € 4,95 € 4,89 €	Min.: 1 Mult.: 1 Max.: 300	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-M33 Trust Zone, MCU 110 MHz 256 kbytes of Flash STM32L552RCT6 STMicroelectronics 1: 9,46 € 883In Stock	Mfr. Part No. STM32L552RCT6 Mouser Part No 511-STM32L552RCT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 110 MHz 256 kbytes of Flash Learn More about STMicroelectronics stm stm32 l5 mcus	Datasheet	883In Stock	9,46 € 7,35 € 6,52 € 6,09 € 5,94 €	Min.: 1 Mult.: 1 Max.: 250	SMD/SMT	LQFP-64	ARM Cortex M33	256 kB	32 bit	2 x 12 bit	110 MHz	52 I/O	256 kB	1.71 V	3.6 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU Ultra-low-power dual core Arm Cortex-M4 64MHz Cortex-M0+ 32MHz 256Kbytes Flash STM32WB35CCU6A STMicroelectronics 1: 5,77 € 1 680In Stock	Mfr. Part No. STM32WB35CCU6A Mouser Part No 511-STM32WB35CCU6A	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power dual core Arm Cortex-M4 64MHz Cortex-M0+ 32MHz 256Kbytes Flash Learn More about STMicroelectronics stm stm32wb wireless mcu	Datasheet	1 680In Stock	5,77 € 4,72 € 4,51 € 4,06 € View 3,91 € 3,69 €	Min.: 1 Mult.: 1	SMD/SMT	UFQFPN-48	ARM Cortex M4	256 kB	32 bit	12 bit	32 MHz	72 I/O	256 kB	1.71 V	3.6 V	- 40 C	+ 105 C		Tray
32-bit Microcontrollers - MCU 256KB, 144LQFP Ind AT32UC3A3256-ALUT Microchip Technology 1: 13,78 € 473In Stock	Mfr. Part No. AT32UC3A3256-ALUT Mouser Part No 556-AT32UC3A3256ALUT	Microchip Technology	32-bit Microcontrollers - MCU 256KB, 144LQFP Ind Learn More about Microchip Technology microchip a3 a4 series mcus	Datasheet	473In Stock	13,78 € 12,52 € 11,34 €	Min.: 1 Mult.: 1	SMD/SMT	LQFP-144	AVR	256 kB	32 bit	10 bit	84 MHz	110 I/O	128 kB	3 V	3.6 V	- 40 C	+ 85 C		Tray
32-bit Microcontrollers - MCU 32-bit AT32UC3B1256-AUT Microchip Technology 1: 7,42 € 1 243In Stock	Mfr. Part No. AT32UC3B1256-AUT Mouser Part No 556-AT32UC3B1256-AUT	Microchip Technology	32-bit Microcontrollers - MCU 32-bit Learn More about Microchip Technology microchip b series mcus	Datasheet	1 243In Stock	7,42 € 6,74 € 6,11 €	Min.: 1 Mult.: 1	SMD/SMT	TQFP-48	AVR	256 kB	32 bit	10 bit	60 MHz	28 I/O	32 kB	1.65 V	1.95 V	- 40 C	+ 85 C		Tray
32-bit Microcontrollers - MCU UC3C 256K FLASH 64K SRAM AT32UC3C2256C-A2UR Microchip Technology 1: 10,70 € 609In Stock	Mfr. Part No. AT32UC3C2256C-A2UR Mouser Part No 556-AT32UC3C2256CA2R	Microchip Technology	32-bit Microcontrollers - MCU UC3C 256K FLASH 64K SRAM Learn More about Microchip Technology microchip c series mcus	Datasheet	609In Stock	Cut Tape 10,70 € 10,34 € Reel 8,82 €	Min.: 1 Mult.: 1 : 1 500			AVR	256 kB	32 bit		66 MHz	45 I/O	64 kB	3 V	5.5 V	- 40 C	+ 85 C		Reel, Cut Tape
32-bit Microcontrollers - MCU UC3L-256KB FL 85C AT32UC3L0256-AUT Microchip Technology 1: 8,34 € 646In Stock	Mfr. Part No. AT32UC3L0256-AUT Mouser Part No 556-AT32UC3L0256-AUT	Microchip Technology	32-bit Microcontrollers - MCU UC3L-256KB FL 85C Learn More about Microchip Technology microchip l series mcus	Datasheet	646In Stock	8,34 € 7,58 € 6,86 €	Min.: 1 Mult.: 1	SMD/SMT	TQFP-48	AVR	256 kB	32 bit	12 bit	50 MHz	36 I/O	32 kB	1.8 V	1.8 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU 256K Flash SRAM 64K ARM based MCU AT91SAM7S256D-MU Microchip Technology 1: 9,94 € 309In Stock	Mfr. Part No. AT91SAM7S256D-MU Mouser Part No 556-AT91SAM7S256D-MU	Microchip Technology	ARM Microcontrollers - MCU 256K Flash SRAM 64K ARM based MCU	Datasheet	309In Stock	9,94 € 9,05 € 8,18 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-64	ARM7TDMI	256 kB	32 bit/16 bit	10 bit	55 MHz	32 I/O	64 kB	1.65 V	1.95 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU LQFP GRN IND TMP MRL C AT91SAM7X256C-AU Microchip Technology 1: 10,66 € 201In Stock 3 150Expected 26/01/2027	Mfr. Part No. AT91SAM7X256C-AU Mouser Part No 556-AT91SAM7X256C-AU	Microchip Technology	ARM Microcontrollers - MCU LQFP GRN IND TMP MRL C	Datasheet	201In Stock 3 150Expected 26/01/2027	10,66 € 9,71 € 8,80 €	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM7TDMI	256 kB	32 bit	10 bit	20 MHz	62 I/O	64 kB	1.65 V	1.95 V	- 40 C	+ 85 C		Tray
8-bit Microcontrollers - MCU AVR 256K FLSH 4K EE 8K SRAM ADC 5V-8MHz ATMEGA2561V-8AUR Microchip Technology 1: 13,48 € 126In Stock 1 000Expected 06/07/2027	Mfr. Part No. ATMEGA2561V-8AUR Mouser Part No 556-ATMEGA2561V-8AUR	Microchip Technology	8-bit Microcontrollers - MCU AVR 256K FLSH 4K EE 8K SRAM ADC 5V-8MHz Learn More about Microchip Technology microchip atmega2560 mcus	Datasheet	126In Stock 1 000Expected 06/07/2027	Cut Tape 13,48 € 13,15 € Reel 11,20 € MouseReel Available	Min.: 1 Mult.: 1 : 1 000	SMD/SMT	TQFP-64	AVR	256 kB	8 bit	10 bit	8 MHz	54 I/O	8 kB	1.8 V	5.5 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU AVR 256K FLASH 4K EE 8K SRAM ADC 1.8V ATMEGA2561V-8MU Microchip Technology 1: 13,33 € 566In Stock	Mfr. Part No. ATMEGA2561V-8MU Mouser Part No 556-ATMEGA2561V8MU	Microchip Technology	8-bit Microcontrollers - MCU AVR 256K FLASH 4K EE 8K SRAM ADC 1.8V Learn More about Microchip Technology microchip atmega2560 mcus	Datasheet	566In Stock	13,33 € 12,22 € 11,07 €	Min.: 1 Mult.: 1	SMD/SMT	MLF-64	AVR	256 kB	8 bit	10 bit	8 MHz	54 I/O	8 kB	1.8 V	5.5 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU MRL A 256K Flash 48K SRAM Ind Temp ATSAM3S4BA-AU Microchip Technology 1: 5,62 € 1 756In Stock	Mfr. Part No. ATSAM3S4BA-AU Mouser Part No 556-ATSAM3S4BA-AU	Microchip Technology	ARM Microcontrollers - MCU MRL A 256K Flash 48K SRAM Ind Temp Learn More about Microchip Technology microchip sam3s mcu	Datasheet	1 756In Stock	5,62 € 5,10 € 4,64 €	Min.: 1 Mult.: 1	SMD/SMT	QFP-64	ARM Cortex M3	256 kB	32 bit	12 bit	64 MHz	47 I/O	48 kB	1.62 V	1.9 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU QFN,GREEN,IND TEMP,MRL A ATSAM4LS4AA-MU Microchip Technology 1: 5,68 € 430In Stock	Mfr. Part No. ATSAM4LS4AA-MU Mouser Part No 556-ATSAM4LS4AA-MU	Microchip Technology	ARM Microcontrollers - MCU QFN,GREEN,IND TEMP,MRL A Learn More about Microchip Technology atmel atsam4l	Datasheet	430In Stock	5,68 € 5,18 € 4,69 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-48	ARM Cortex M4	256 kB	32 bit	12 bit	48 MHz	32 I/O	32 kB	1.62 V	1.98 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU TQFP, Green, IND TEMP, CRYPTO, MRL A ATSAM4LS4BA-AU Microchip Technology 1: 5,83 € 346In Stock	Mfr. Part No. ATSAM4LS4BA-AU Mouser Part No 556-ATSAM4LS4BA-AU	Microchip Technology	ARM Microcontrollers - MCU TQFP, Green, IND TEMP, CRYPTO, MRL A Learn More about Microchip Technology atmel atsam4l	Datasheet	346In Stock	5,83 € 5,30 € 4,81 €	Min.: 1 Mult.: 1	SMD/SMT	TQFP-64	ARM Cortex M4	256 kB	32 bit	12 bit	48 MHz	48 I/O	32 kB	1.62 V	1.98 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU LQFPGRNIND TEMPMRL A ATSAM4S4AA-AU Microchip Technology 1: 4,11 € 831In Stock	Mfr. Part No. ATSAM4S4AA-AU Mouser Part No 556-ATSAM4S4AA-AU	Microchip Technology	ARM Microcontrollers - MCU LQFPGRNIND TEMPMRL A Learn More about Microchip Technology atmelsam4s	Datasheet	831In Stock	4,11 € 3,74 € 3,40 €	Min.: 1 Mult.: 1	SMD/SMT	LQFP-48	ARM Cortex M4	256 kB	32 bit	12 bit	120 MHz	34 I/O	64 kB	1.08 V	1.32 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU Cortx-M0+256KB FLASH ATSAMD20E18A-MUT Microchip Technology 1: 2,71 € 2 543In Stock	Mfr. Part No. ATSAMD20E18A-MUT Mouser Part No 556-ATSAMD20E18A-MUT	Microchip Technology	ARM Microcontrollers - MCU Cortx-M0+256KB FLASH Learn More about Microchip Technology atmel samd20 mcu	Datasheet	2 543In Stock	Cut Tape 2,71 € 2,60 € Reel 2,24 € MouseReel Available	Min.: 1 Mult.: 1 : 5 000	SMD/SMT	QFN-32	ARM Cortex M0	256 kB	32 bit	12 bit	48 MHz	26 I/O	32 kB	1.62 V	1.95 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU Cortex-M0+ 256KB FLASH 32KB SRAM ATSAMD20G18A-MUT Microchip Technology 1: 2,85 € 1 348In Stock	Mfr. Part No. ATSAMD20G18A-MUT Mouser Part No 556-ATSAMD20G18A-MUT	Microchip Technology	ARM Microcontrollers - MCU Cortex-M0+ 256KB FLASH 32KB SRAM Learn More about Microchip Technology atmel samd20 mcu	Datasheet	1 348In Stock	Cut Tape 2,85 € 2,75 € Reel 2,34 € 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	1.95 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 64KB 8KB32TQFP GRN 1.6-3.6V 48MHz ATSAMD21E18A-AU Microchip Technology 1: 3,41 € 694In Stock	Mfr. Part No. ATSAMD21E18A-AU Mouser Part No 556-ATSAMD21E18A-AU	Microchip Technology	ARM Microcontrollers - MCU 64KB 8KB32TQFP GRN 1.6-3.6V 48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	694In Stock	3,41 € 3,09 € 2,80 €	Min.: 1 Mult.: 1	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	Tray
ARM Microcontrollers - MCU 256KB 32QFN GRN 1.6-3.6V 48MHz ATSAMD21E18A-MU Microchip Technology 1: 3,33 € 2 044In Stock	Mfr. Part No. ATSAMD21E18A-MU Mouser Part No 556-ATSAMD21E18A-MU	Microchip Technology	ARM Microcontrollers - MCU 256KB 32QFN GRN 1.6-3.6V 48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	2 044In Stock	3,33 € 3,04 € 2,75 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-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	Tray
ARM Microcontrollers - MCU 120MHZ 256KB FLASH 6 4 TQFP PKG 85C ATSAMD51J18A-AU Microchip Technology 1: 4,33 € 1 111In Stock	Mfr. Part No. ATSAMD51J18A-AU Mouser Part No 556-ATSAMD51J18AAU	Microchip Technology	ARM Microcontrollers - MCU 120MHZ 256KB FLASH 6 4 TQFP PKG 85C Learn More about Microchip Technology microchip sam d5 e5	Datasheet	1 111In Stock	4,33 € 3,96 € 3,59 €	Min.: 1 Mult.: 1	SMD/SMT	TQFP-64	ARM Cortex M4F	256 kB	32 bit	12 bit	120 MHz	51 I/O	128 kB	1.71 V	3.6 V	- 40 C	+ 85 C	AEC-Q100	Tray
ARM Microcontrollers - MCU 120MHZ 256KB FLASH 6 4 TQFP PKG IN 85C ATSAMD51J18A-AUT Microchip Technology 1: 4,45 € 1 198In Stock 1 500Expected 17/09/2027	Mfr. Part No. ATSAMD51J18A-AUT Mouser Part No 556-ATSAMD51J18AAUT	Microchip Technology	ARM Microcontrollers - MCU 120MHZ 256KB FLASH 6 4 TQFP PKG IN 85C Learn More about Microchip Technology microchip sam d5 e5	Datasheet	1 198In Stock 1 500Expected 17/09/2027	Cut Tape 4,45 € 4,32 € Reel 3,68 €	Min.: 1 Mult.: 1 : 1 500	SMD/SMT	TQFP-64	ARM Cortex M4F	256 kB	32 bit	12 bit	120 MHz	51 I/O	128 kB	1.71 V	3.6 V	- 40 C	+ 85 C	AEC-Q100	Reel, Cut Tape