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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 USB Device, DFS STM32L452VCI6 STMicroelectronics 1: 7,33 € 36In Stock 2.496On Order	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	Datasheet	36In Stock 2.496On Order	7,33 € 5,41 € 4,92 € 4,46 € View 4,35 € 3,99 €	Min.: 1 Mult.: 1 Max.: 500	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 1: 7,57 € 31In Stock 3.840On Order	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	31In Stock 3.840On Order	7,57 € 5,86 € 5,17 € 4,95 € 4,92 €	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-M4 MCU 80 MHz 256 Kbytes of Flash LCD, USB OTG, D STM32L476RCT6 STMicroelectronics 1: 7,68 € 34In Stock 3.840On Order	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	Datasheet	34In Stock 3.840On Order On Order Ship Dates Mfr. No: STM32L476RCT6 Stock: 34 Can Dispatch Immediately On Order: 960 Expected 2/22/2027 1.920 Expected 10/25/2027 960 TBD Factory Lead Time: 52 Weeks	7,68 € 5,66 € 5,16 € 4,68 € 4,57 €	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	+ 85 C		Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 MCU TrustZone, 160 MHz 256 Kbytes Flash STM32U535VCI6Q STMicroelectronics 1: 7,12 € 4In Stock	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	Datasheet	4In Stock	7,12 € 5,50 € 4,85 € 4,64 € View 4,61 € 4,30 € 4,22 €	Min.: 1 Mult.: 1	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: 5,31 € 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	5,31 € 4,41 € 4,21 € 3,69 € View 3,67 € 3,55 € 3,52 € 3,49 € 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: 5,99 € 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	5,99 € 4,90 € 4,52 € 4,27 € View 4,06 € 3,90 €	Min.: 1 Mult.: 1	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: 8,60 € 27In Stock 7.800On Order	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	27In Stock 7.800On Order On Order Ship Dates Mfr. No: STM32WLE5CCU6 Stock: 27 Can Dispatch Immediately On Order: 4.680 Expected 11/5/2026 3.120 Expected 11/9/2026 Factory Lead Time: 52 Weeks	8,60 € 6,93 € 6,60 € 5,87 € View 5,58 € 5,31 €	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
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 14.040On Order	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 14.040On Order On Order Ship Dates Mfr. No: STM32WLE5CCU7 Stock: 26 Can Dispatch Immediately On Order: 6.240 Expected 11/12/2026 7.800 Expected 12/12/2026 Factory Lead Time: 52 Weeks	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, 144FFBGA Ind AT32UC3A3256-CTUT Microchip Technology 1: 13,93 € 6In Stock	Mfr. Part No. AT32UC3A3256-CTUT Mouser Part No 556-AT32UC3A3256CTUT	Microchip Technology	32-bit Microcontrollers - MCU 256KB, 144FFBGA Ind Learn More about Microchip Technology microchip a3 a4 series mcus	Datasheet	6In Stock	13,93 € 12,68 € 11,49 €	Min.: 1 Mult.: 1	SMD/SMT	FFBGA-144	AVR	256 kB	32 bit	10 bit	66 MHz	110 I/O	64 kB	1.65 V	1.95 V	- 40 C	+ 85 C		Tray
32-bit Microcontrollers - MCU 256KB, 144LQFP Ind w/ AES Mod. AT32UC3A3256S-ALUT Microchip Technology 1: 14,58 € 10In Stock	Mfr. Part No. AT32UC3A3256S-ALUT Mouser Part No 556-AT32UC3A3256SALT	Microchip Technology	32-bit Microcontrollers - MCU 256KB, 144LQFP Ind w/ AES Mod. Learn More about Microchip Technology microchip a3 a4 series mcus	Datasheet	10In Stock	14,58 € 13,26 € 12,00 €	Min.: 1 Mult.: 1	SMD/SMT	LQFP-144	AVR	256 kB	32 bit	10 bit	66 MHz	110 I/O	64 kB	1.65 V	1.95 V	- 40 C	+ 85 C		Tray
32-bit Microcontrollers - MCU 256KB, 144FFBGA w/ AES Mod. AT32UC3A3256S-CTUR Microchip Technology 1: 14,92 € 183In Stock	Mfr. Part No. AT32UC3A3256S-CTUR Mouser Part No 556-AT32UC3A3256SCTR	Microchip Technology	32-bit Microcontrollers - MCU 256KB, 144FFBGA w/ AES Mod. Learn More about Microchip Technology microchip a3 a4 series mcus	Datasheet	183In Stock	Cut Tape 14,92 € 14,41 € Reel 12,28 € MouseReel Available	Min.: 1 Mult.: 1 : 2.000	SMD/SMT	TBGA-144	AVR	256 kB	32 bit	10 bit	66 MHz	110 I/O	64 kB	1.65 V	1.95 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
32-bit Microcontrollers - MCU UC3C 256K FLASH 64K SRAM AT32UC3C0256C-ALUT Microchip Technology 1: 12,14 € 6In Stock	Mfr. Part No. AT32UC3C0256C-ALUT Mouser Part No 556-AT32UC3C0256CALT	Microchip Technology	32-bit Microcontrollers - MCU UC3C 256K FLASH 64K SRAM Learn More about Microchip Technology microchip c series mcus	Datasheet	6In Stock	12,14 € 11,04 € 10,01 €	Min.: 1 Mult.: 1	SMD/SMT	LQFP-144	AVR	256 kB	32 bit	12 bit	66 MHz	123 I/O	64 kB	3 V	5.5 V	- 40 C	+ 85 C		Tray
32-bit Microcontrollers - MCU UC3C 256K FLASH 64K SRAM AT32UC3C1256C-AUR Microchip Technology 1: 11,51 € 12In Stock 1.000Expected 1/4/2027	Mfr. Part No. AT32UC3C1256C-AUR Mouser Part No 556-AT32UC3C1256CAUR	Microchip Technology	32-bit Microcontrollers - MCU UC3C 256K FLASH 64K SRAM Learn More about Microchip Technology microchip c series mcus	Datasheet	12In Stock 1.000Expected 1/4/2027	Cut Tape 11,51 € 11,11 € Reel 9,47 € MouseReel Available	Min.: 1 Mult.: 1 : 1.000	SMD/SMT	TQFP-100	AVR	256 kB	32 bit	12 bit	66 MHz	81 I/O	64 kB	3 V	5.5 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
32-bit Microcontrollers - MCU UC3C 256K FLASH 64K SRAM AT32UC3C1256C-AUT Microchip Technology 1: 11,34 € 10In Stock	Mfr. Part No. AT32UC3C1256C-AUT Mouser Part No 556-AT32UC3C1256CAUT	Microchip Technology	32-bit Microcontrollers - MCU UC3C 256K FLASH 64K SRAM Learn More about Microchip Technology microchip c series mcus	Datasheet	10In Stock	11,34 € 10,31 € 9,35 €	Min.: 1 Mult.: 1	SMD/SMT	TQFP-100	AVR	256 kB	32 bit	12 bit	66 MHz	81 I/O	64 kB	3 V	5.5 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU LQFP GRN IND TMP MRL C AT91SAM7X256C-AU Microchip Technology 1: 10,66 € 86In Stock 3.150Expected 1/26/2027	Mfr. Part No. AT91SAM7X256C-AU Mouser Part No 556-AT91SAM7X256C-AU	Microchip Technology	ARM Microcontrollers - MCU LQFP GRN IND TMP MRL C	Datasheet	86In Stock 3.150Expected 1/26/2027	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
ARM Microcontrollers - MCU LQFP Green IND TEMP MRL B, T&R MRLC AT91SAM7X256C-AUR Microchip Technology 1: 10,83 € 10In Stock 2.000Expected 12/31/2026	Mfr. Part No. AT91SAM7X256C-AUR Mouser Part No 556-AT91SAM7X256CAUR	Microchip Technology	ARM Microcontrollers - MCU LQFP Green IND TEMP MRL B, T&R MRLC	Datasheet	10In Stock 2.000Expected 12/31/2026	Cut Tape 10,83 € 10,47 € Reel 8,92 € MouseReel Available	Min.: 1 Mult.: 1 : 1.000	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		Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU MRL A 256K Flash 48K SRAM Ind Temp ATSAM3S4AA-AU Microchip Technology 1: 5,33 € 26In Stock	Mfr. Part No. ATSAM3S4AA-AU Mouser Part No 556-ATSAM3S4AA-AU	Microchip Technology	ARM Microcontrollers - MCU MRL A 256K Flash 48K SRAM Ind Temp Learn More about Microchip Technology microchip sam3s mcu	Datasheet	26In Stock	5,33 € 4,84 € 4,38 €	Min.: 1 Mult.: 1	SMD/SMT	QFP-48	ARM Cortex M3	256 kB	32 bit	12 bit	64 MHz	34 I/O	48 kB	1.62 V	1.9 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU MRL A 256K Flash 48K SRAM Ind Temp ATSAM3S4CA-AU Microchip Technology 1: 5,96 € 10In Stock	Mfr. Part No. ATSAM3S4CA-AU Mouser Part No 556-ATSAM3S4CA-AU	Microchip Technology	ARM Microcontrollers - MCU MRL A 256K Flash 48K SRAM Ind Temp Learn More about Microchip Technology microchip sam3s mcu	Datasheet	10In Stock	5,96 € 5,40 € 4,90 €	Min.: 1 Mult.: 1	SMD/SMT	QFP-100	ARM Cortex M3	256 kB	32 bit	12 bit	64 MHz	79 I/O	48 kB	1.62 V	1.9 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU 256K Flash, 52K SRAM 32-bit ARM Cortex M3 ATSAM3U4CA-AU Microchip Technology 1: 6,55 € 81In Stock 180Expected 2/25/2027	Mfr. Part No. ATSAM3U4CA-AU Mouser Part No 556-ATSAM3U4CA-AU	Microchip Technology	ARM Microcontrollers - MCU 256K Flash, 52K SRAM 32-bit ARM Cortex M3 Learn More about Microchip Technology microchip sam3u mcus	Datasheet	81In Stock 180Expected 2/25/2027	6,55 € 5,96 € 5,40 €	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	256 kB	32 bit	12 bit	96 MHz	57 I/O	52 kB	1.62 V	1.95 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU LQFPGREENIND ATSAM4S4CA-AU Microchip Technology 1: 4,64 € 148In Stock 180Expected 11/3/2026	Mfr. Part No. ATSAM4S4CA-AU Mouser Part No 556-ATSAM4S4CA-AU	Microchip Technology	ARM Microcontrollers - MCU LQFPGREENIND Learn More about Microchip Technology atmelsam4s	Datasheet	148In Stock 180Expected 11/3/2026	4,64 € 4,20 € 3,81 €	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M4	256 kB	32 bit	12 bit	120 MHz	79 I/O	64 kB	1.08 V	1.32 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU LQFP,GREEN,IND TEMP,MRL B ATSAM4S4CB-ANR Microchip Technology 1: 4,80 € 173In Stock	Mfr. Part No. ATSAM4S4CB-ANR Mouser Part No 556-ATSAM4S4CB-ANR	Microchip Technology	ARM Microcontrollers - MCU LQFP,GREEN,IND TEMP,MRL B Learn More about Microchip Technology atmelsam4s	Datasheet	173In Stock	Cut Tape 4,80 € 4,63 € Reel 3,96 €	Min.: 1 Mult.: 1 : 1.000	SMD/SMT	LQFP-100	ARM Cortex M4	256 kB	32 bit	12 bit	120 MHz	79 I/O	64 kB	1.62 V	3.6 V	- 40 C	+ 105 C		Reel, Cut Tape
ARM Microcontrollers - MCU 64QFN 125C, GREEN,1.6-3.6V,48MHz ATSAMD21J18A-MF Microchip Technology 1: 4,07 € 226In Stock	Mfr. Part No. ATSAMD21J18A-MF Mouser Part No 556-ATSAMD21J18A-MF	Microchip Technology	ARM Microcontrollers - MCU 64QFN 125C, GREEN,1.6-3.6V,48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	226In Stock	4,07 € 3,69 € 3,35 €	Min.: 1 Mult.: 1	SMD/SMT	QFN-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 120MHZ 256KB FLASH 4 8 QFN PKG 85C ATSAMD51G18A-MU Microchip Technology 1: 4,10 € 192In Stock	Mfr. Part No. ATSAMD51G18A-MU Mouser Part No 556-ATSAMD51G18AMU	Microchip Technology	ARM Microcontrollers - MCU 120MHZ 256KB FLASH 4 8 QFN PKG 85C Learn More about Microchip Technology microchip sam d5 e5	Datasheet	192In Stock	4,10 € 3,77 € 3,41 €	Min.: 1 Mult.: 1	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	Tray
ARM Microcontrollers - MCU 120MHZ 256KB FLASH 6 4 TQFP PKG 85C ATSAME51J18A-AU Microchip Technology 1: 4,76 € 134In Stock 160Expected 11/27/2026	Mfr. Part No. ATSAME51J18A-AU Mouser Part No 556-ATSAME51J18AAU	Microchip Technology	ARM Microcontrollers - MCU 120MHZ 256KB FLASH 6 4 TQFP PKG 85C Learn More about Microchip Technology microchip sam e5 mcu	Datasheet	134In Stock 160Expected 11/27/2026	4,76 € 4,38 € 3,96 €	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
32-bit Microcontrollers - MCU UC3L-256KB Flash 64QFP 85C green TRAY ATUC256L3U-AUT Microchip Technology 1: 9,00 € 33In Stock	Mfr. Part No. ATUC256L3U-AUT Mouser Part No 556-ATUC256L3U-AUT	Microchip Technology	32-bit Microcontrollers - MCU UC3L-256KB Flash 64QFP 85C green TRAY Learn More about Microchip Technology microchip l series mcus	Datasheet	33In Stock	9,00 € 8,17 € 7,41 €	Min.: 1 Mult.: 1	SMD/SMT	TQFP-64	AVR	256 kB	32 bit	12 bit	50 MHz	51 I/O	32 kB	1.8 V	1.8 V	- 40 C	+ 85 C		Tray