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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 (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 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
ARM Microcontrollers - MCU Sub-GHz Wireless Microcontrollers. Arm Cortex-M4 a.48 MHz 256 Kbytes of Flash 64 STM32WLE5CCU7 STMicroelectronics 1: 7,99 € 26In Stock 6.240Expected 6/11/2027	Mfr. Part No. STM32WLE5CCU7 Mouser Part No 511-STM32WLE5CCU7	STMicroelectronics	ARM Microcontrollers - MCU Sub-GHz Wireless Microcontrollers. Arm Cortex-M4 a.48 MHz 256 Kbytes of Flash 64 Learn More about STMicroelectronics stm stm32wle4xx stm32wle5xx mcus	Datasheet	26In Stock 6.240Expected 6/11/2027	7,99 € 6,93 € 6,57 € 6,06 € View 5,76 € 5,50 € 5,20 € Quote	Min.: 1 Mult.: 1	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
32-bit Microcontrollers - MCU 256KB, 144LQFP Ind AT32UC3A3256-ALUT Microchip Technology 1: 13,78 € 468In 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	468In 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 UC3C 512K FLASH 64K SRAM AT32UC3C2256C-A2UT Microchip Technology 1: 10,53 € 522In Stock	Mfr. Part No. AT32UC3C2256C-A2UT Mouser Part No 556-AT32UC3C2256CA2T	Microchip Technology	32-bit Microcontrollers - MCU UC3C 512K FLASH 64K SRAM Learn More about Microchip Technology microchip c series mcus	Datasheet	522In Stock	10,53 € 9,56 € 8,66 €	Min.: 1 Mult.: 1	SMD/SMT	TQFP-64	AVR	256 kB	32 bit	12 bit	66 MHz	45 I/O	64 kB	3 V	5.5 V	- 40 C	+ 85 C		Tray
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
8-bit Microcontrollers - MCU AVR 256K FLASH 4K EE 8K SRAM ADC 1.8V ATMEGA2561V-8MU Microchip Technology 1: 13,60 € 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	13,60 € 12,47 € 11,29 € 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 € 1.606In 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	1.606In 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-AUT Microchip Technology 1: 2,77 € 2.352In Stock 2.000Expected 10/19/2026	Mfr. Part No. ATSAMD20E18A-AUT Mouser Part No 556-ATSAMD20E18A-AUT	Microchip Technology	ARM Microcontrollers - MCU Cortx-M0+256KB FLASH Learn More about Microchip Technology atmel samd20 mcu	Datasheet	2.352In Stock 2.000Expected 10/19/2026	Cut Tape 2,77 € 2,67 € Reel 2,29 € 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	1.95 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
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 4.000Expected 10/26/2026	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 4.000Expected 10/26/2026	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 € 688In 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	688In 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 € 2.009In 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	2.009In 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 256KB 32KB 48QFN GRN1.6-3.6V48MHz ATSAMD21G18A-MU Microchip Technology 1: 3,50 € 1.491In Stock 1.248Expected 10/28/2026	Mfr. Part No. ATSAMD21G18A-MU Mouser Part No 556-ATSAMD21G18A-MU	Microchip Technology	ARM Microcontrollers - MCU 256KB 32KB 48QFN GRN1.6-3.6V48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	1.491In Stock 1.248Expected 10/28/2026	3,50 € 3,18 € 2,88 €	Min.: 1 Mult.: 1	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	Tray
ARM Microcontrollers - MCU 120MHZ 256KB FLASH 6 4 TQFP PKG 85C ATSAMD51J18A-AU Microchip Technology 1: 4,33 € 1.106In 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	1.106In 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 9/17/2027	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 9/17/2027	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
ARM Microcontrollers - MCU CM4, QFN 48, 256KB Flash, USB,CAN, Indus.85C, Tray ATSAME51G18A-MU Microchip Technology 1: 4,76 € 730In Stock	Mfr. Part No. ATSAME51G18A-MU Mouser Part No 556-ATSAME51G18A-MU	Microchip Technology	ARM Microcontrollers - MCU CM4, QFN 48, 256KB Flash, USB,CAN, Indus.85C, Tray Learn More about Microchip Technology microchip sam e5 mcu	Datasheet	730In Stock	4,76 € 4,38 € 3,96 €	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	3.63 V	- 40 C	+ 85 C	AEC-Q100	Tray
ARM Microcontrollers - MCU CM4, TQFP 64, 256KFlash,Tray, USB,CAN ,Extended Temp ATSAME51J18A-AF Microchip Technology 1: 5,25 € 263In Stock	Mfr. Part No. ATSAME51J18A-AF Mouser Part No 556-ATSAME51J18A-AF	Microchip Technology	ARM Microcontrollers - MCU CM4, TQFP 64, 256KFlash,Tray, USB,CAN ,Extended Temp Learn More about Microchip Technology microchip sam e5 mcu	Datasheet	263In Stock	5,25 € 4,82 € 4,36 €	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	+ 125 C	AEC-Q100	Tray
ARM Microcontrollers - MCU 120MHZ 256KB FLASH 6 4 TQFP PKG IN 85C ATSAME51J18A-AUT Microchip Technology 1: 4,88 € 1.468In Stock	Mfr. Part No. ATSAME51J18A-AUT Mouser Part No 556-ATSAME51J18AAUT	Microchip Technology	ARM Microcontrollers - MCU 120MHZ 256KB FLASH 6 4 TQFP PKG IN 85C Learn More about Microchip Technology microchip sam e5 mcu	Datasheet	1.468In Stock	Cut Tape 4,88 € 4,74 € Reel 4,05 €	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
ARM Microcontrollers - MCU 120MHZ 256KB FLASH 6 4 QFN PKG 85C ATSAME51J18A-MU Microchip Technology 1: 4,95 € 1.017In Stock	Mfr. Part No. ATSAME51J18A-MU Mouser Part No 556-ATSAME51J18AMU	Microchip Technology	ARM Microcontrollers - MCU 120MHZ 256KB FLASH 6 4 QFN PKG 85C Learn More about Microchip Technology microchip sam e5 mcu	Datasheet	1.017In Stock	4,95 € 4,54 € 4,11 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-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