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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 (GBP) 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 32-Bit Cortex 64Kb Performance Line STM32F103RCY6TR STMicroelectronics 1: £7.83 3,957In Stock	Mfr. Part No. STM32F103RCY6TR Mouser Part No 511-STM32F103RCY6TR	STMicroelectronics	ARM Microcontrollers - MCU 32-Bit Cortex 64Kb Performance Line Learn More about STMicroelectronics stm32f1	Datasheet	3,957In Stock	Cut Tape £7.83 £6.05 £5.77 £5.01 View Reel £4.41 £4.96 £4.61 £4.41 Quote MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	WLCSP-64	ARM Cortex M3	256 kB	32 bit	12 bit	72 MHz	51 I/O	48 kB	2 V	3.6 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32-Bit Cortex 64Kb Performance Line STM32F103VCT6TR STMicroelectronics 1: £8.06 29,181In Stock	Mfr. Part No. STM32F103VCT6TR Mouser Part No 511-STM32F103VCT6TR	STMicroelectronics	ARM Microcontrollers - MCU 32-Bit Cortex 64Kb Performance Line Learn More about STMicroelectronics stm32f1	Datasheet	29,181In Stock	Cut Tape £8.06 £6.41 £5.76 £5.45 View Reel £4.95 £5.33 £5.03 £4.95 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	LQFP-100	ARM Cortex M3	256 kB	32 bit	12 bit	72 MHz	80 I/O	48 kB	2 V	3.6 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32BIT Cortex 64/25 CONNECTIVITY LINE M3 STM32F105RCT6 STMicroelectronics 1: £6.42 12,068In Stock	Mfr. Part No. STM32F105RCT6 Mouser Part No 511-STM32F105RCT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex 64/25 CONNECTIVITY LINE M3 Learn More about STMicroelectronics stm32f105	Datasheet	12,068In Stock	£6.42 £5.15 £4.85 £4.48 View £4.39 £4.21 £4.00	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		Tray
ARM Microcontrollers - MCU 32BIT Cortex 64/25 CONNECTIVITY LINE M3 STM32F107RCT6 STMicroelectronics 1: £8.49 3,123In Stock	Mfr. Part No. STM32F107RCT6 Mouser Part No 511-STM32F107RCT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex 64/25 CONNECTIVITY LINE M3 Learn More about STMicroelectronics STM32F107	Datasheet	3,123In Stock	£8.49 £6.63 £5.88 £5.50 View £5.20 £5.12	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		Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash STM32L431KCU6 STMicroelectronics 1: £4.10 5,734In Stock	Mfr. Part No. STM32L431KCU6 Mouser Part No 511-STM32L431KCU6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash Learn More about STMicroelectronics stm stm32l4 mcu fpu	Datasheet	5,734In Stock	£4.10 £3.06 £2.72 £2.53 View £2.47 £2.20 £2.16 £2.02	Min.: 1 Mult.: 1 Max.: 2,940	SMD/SMT	UFQFPN-32	ARM Cortex M4	256 kB	32 bit	12 bit	80 MHz	26 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 STM32L431KCU6TR STMicroelectronics 1: £4.76 5,632In Stock 51,000On Order	Mfr. Part No. STM32L431KCU6TR Mouser Part No 511-STM32L431KCU6TR	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash	Datasheet	5,632In Stock 51,000On Order	Cut Tape £4.76 £3.27 £3.05 £2.68 View Reel £2.17 £2.55 £2.30 £2.17 MouseReel Available	Min.: 1 Mult.: 1 Max.: 3,000 : 3,000	SMD/SMT	QFN-32	ARM Cortex M4	256 kB	32 bit	12 bit	80 MHz	26 I/O	64 kB	1.71 V	3.6 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 kbytes of Flash , DFSDM STM32L451CCU3 STMicroelectronics 1: £5.47 4,843In Stock	Mfr. Part No. STM32L451CCU3 Mouser Part No 511-STM32L451CCU3	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	4,843In Stock	£5.47 £4.20 £3.68 £3.53	Min.: 1 Mult.: 1 Max.: 100	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	+ 125 C		Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 110 MHz 256 kbytes of Flash STM32L552CCU6 STMicroelectronics 1: £7.10 7,457In Stock	Mfr. Part No. STM32L552CCU6 Mouser Part No 511-STM32L552CCU6	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	7,457In Stock	£7.10 £5.59 £5.10 £4.73 View £4.52 £4.32	Min.: 1 Mult.: 1 Max.: 750	SMD/SMT	UFQFPN-48	ARM Cortex M33	256 kB	32 bit	2 x 12 bit	110 MHz	38 I/O	256 kB	1.71 V	3.6 V	- 40 C	+ 85 C		Tray
32-bit Microcontrollers - MCU 32-bit 256KB Flash AT32UC3A0256-ALUT Microchip Technology 1: £10.25 1,276In Stock	Mfr. Part No. AT32UC3A0256-ALUT Mouser Part No 556-AT32UC3A0256ALUT	Microchip Technology	32-bit Microcontrollers - MCU 32-bit 256KB Flash Learn More about Microchip Technology microchip a0 a1 series mcus	Datasheet	1,276In Stock	£10.25 £9.32 £8.44	Min.: 1 Mult.: 1	SMD/SMT	LQFP-144	AVR	256 kB	32 bit	10 bit	66 MHz	109 I/O	64 kB	1.65 V	1.95 V	- 40 C	+ 85 C		Tray
32-bit Microcontrollers - MCU 256k flash Ind AT32UC3A4256S-C1UR Microchip Technology 1: £9.70 2,818In Stock	Mfr. Part No. AT32UC3A4256S-C1UR Mouser Part No 556-AT32UC3A4256SC1R	Microchip Technology	32-bit Microcontrollers - MCU 256k flash Ind Learn More about Microchip Technology microchip a3 a4 series mcus	Datasheet	2,818In Stock	Cut Tape £9.70 £9.38 Reel £7.99	Min.: 1 Mult.: 1 : 4,000	SMD/SMT	VFBGA-100	AVR	256 kB	32 bit	10 bit	84 MHz	70 I/O	64 kB	1.8 V	1.8 V	- 40 C	+ 85 C		Reel, Cut Tape
ARM Microcontrollers - MCU 256K Flash SRAM 64K ARM based MCU AT91SAM7S256D-AU Microchip Technology 1: £8.45 3,691In Stock	Mfr. Part No. AT91SAM7S256D-AU Mouser Part No 556-AT91SAM7S256D-AU	Microchip Technology	ARM Microcontrollers - MCU 256K Flash SRAM 64K ARM based MCU	Datasheet	3,691In Stock	£8.45 £7.69 £6.95	Min.: 1 Mult.: 1	SMD/SMT	LQFP-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 32TQFP 125C, GREEN,1.6-3.6V,48MHz ATSAMD21E18A-AFT Microchip Technology 1: £3.32 6,087In Stock	Mfr. Part No. ATSAMD21E18A-AFT Mouser Part No 556-ATSAMD21E18A-AFT	Microchip Technology	ARM Microcontrollers - MCU 32TQFP 125C, GREEN,1.6-3.6V,48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	6,087In Stock	Cut Tape £3.32 £3.20 Reel £2.74 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	+ 125 C	AEC-Q100	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU Low-Power, 32-bit Cortex-M0+ MCU with Advanced Analog and PWM ATSAMD21E18A-MUT Microchip Technology 1: £2.98 14,313In Stock	Mfr. Part No. ATSAMD21E18A-MUT Mouser Part No 556-ATSAMD21E18A-MUT	Microchip Technology	ARM Microcontrollers - MCU Low-Power, 32-bit Cortex-M0+ MCU with Advanced Analog and PWM Learn More about Microchip Technology sam d21 mcus	Datasheet	14,313In Stock	Cut Tape £2.98 £2.87 Reel £2.44 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	SMD/SMT	VQFN-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 48TQFP 125C, GREEN,1.6-3.6V,48MHz ATSAMD21G18A-AF Microchip Technology 1: £3.43 4,310In Stock	Mfr. Part No. ATSAMD21G18A-AF Mouser Part No 556-ATSAMD21G18A-AF	Microchip Technology	ARM Microcontrollers - MCU 48TQFP 125C, GREEN,1.6-3.6V,48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	4,310In Stock	£3.43 £3.13 £2.83	Min.: 1 Mult.: 1	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	Tray
ARM Microcontrollers - MCU 64BGA 85C, GREEN,1.6-3.6V,48MHz ATSAMD21J18A-CUT Microchip Technology 1: £3.55 3,788In Stock	Mfr. Part No. ATSAMD21J18A-CUT Mouser Part No 556-ATSAMD21J18A-CUT	Microchip Technology	ARM Microcontrollers - MCU 64BGA 85C, GREEN,1.6-3.6V,48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	3,788In Stock	Cut Tape £3.55 £3.44 Reel £3.44 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	SMD/SMT	UFBGA-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	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 256KB 32KB 64QFN GRN1.6-3.6V48MHz ATSAMD21J18A-MUT Microchip Technology 1: £3.29 11,893In Stock	Mfr. Part No. ATSAMD21J18A-MUT Mouser Part No 556-ATSAMD21J18A-MUT	Microchip Technology	ARM Microcontrollers - MCU 256KB 32KB 64QFN GRN1.6-3.6V48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	11,893In Stock	Cut Tape £3.29 £3.18 £3.07 £3.06 View Reel £2.69 £3.04 £3.00 £2.69 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	1.62 V	3.63 V	- 40 C	+ 85 C	AEC-Q100	Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU AVR8 256KB FLSH 16KB ATXMEGA256A3U-MH Microchip Technology 1: £6.70 2,860In Stock 4,940Expected 10/11/2026	Mfr. Part No. ATXMEGA256A3U-MH Mouser Part No 556-ATXMEGA256A3U-MH	Microchip Technology	8-bit Microcontrollers - MCU AVR8 256KB FLSH 16KB	Datasheet	2,860In Stock 4,940Expected 10/11/2026	£6.70 £6.13 £5.55	Min.: 1 Mult.: 1	SMD/SMT	QFN-64	AVR	256 kB	8 bit/16 bit	12 bit	32 MHz	50 I/O	16 kB	1.6 V	3.6 V	- 40 C	+ 85 C		Tray
16-bit Microcontrollers - MCU 16-bit PIC24F, 16 MIPS, 256KB Flash, 16KB RAM, 28 pin PIC24FJ256GA702T-I/MV Microchip Technology 1: £1.48 7,950In Stock	Mfr. Part No. PIC24FJ256GA702T-I/MV Mouser Part No 579-24FJ256GA702TIMV	Microchip Technology	16-bit Microcontrollers - MCU 16-bit PIC24F, 16 MIPS, 256KB Flash, 16KB RAM, 28 pin Learn More about Microchip Technology microchip pic24fj	Datasheet	7,950In Stock	Cut Tape £1.48 £1.47 Reel £1.24	Min.: 1 Mult.: 1 : 3,300	SMD/SMT	UQFN-28	PIC24F	256 kB	16 bit	10 bit, 12 bit	32 MHz	22 I/O	16 kB	2 V	3.6 V	- 40 C	+ 85 C		Reel, Cut Tape
ARM Microcontrollers - MCU 100 TQFP,105C TEMP, GREEN, 5V, 48MHZ,T&R ATSAMC21N18A-ANT Microchip Technology 1: £3.80 3,908In Stock	Mfr. Part No. ATSAMC21N18A-ANT Mouser Part No 579-ATSAMC21N18A-ANT	Microchip Technology	ARM Microcontrollers - MCU 100 TQFP,105C TEMP, GREEN, 5V, 48MHZ,T&R Learn More about Microchip Technology atmel smart samc mcu	Datasheet	3,908In Stock	Cut Tape £3.80 £3.70 Reel £3.15 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	TQFP-100	ARM Cortex M0+	256 kB	32 bit	2 x 12 bit	48 MHz	84 I/O	32 kB	2.7 V	5.5 V	- 40 C	+ 105 C	AEC-Q100	Reel, Cut Tape, MouseReel
16-bit Microcontrollers - MCU 16b 256KB Flash 96K RAM USB PIC24FJ256GB210-I/PT Microchip Technology 1: £7.18 5,083In Stock 952Expected 11/11/2026	Mfr. Part No. PIC24FJ256GB210-I/PT Mouser Part No 579-PIC24FJ25B210IPT	Microchip Technology	16-bit Microcontrollers - MCU 16b 256KB Flash 96K RAM USB Learn More about Microchip Technology microchip pic24fj	Datasheet	5,083In Stock 952Expected 11/11/2026	£7.18 £6.57 £5.96	Min.: 1 Mult.: 1	SMD/SMT	TQFP-100	PIC24F	256 kB	16 bit	10 bit	32 MHz	84 I/O	96 kB	2 V	3.6 V	- 40 C	+ 85 C		Tray
32-bit Microcontrollers - MCU Automotive C2000 32 -bit MCU with 90 MHz TMS320F28069MPZPQ Texas Instruments 1: £31.52 755In Stock	Mfr. Part No. TMS320F28069MPZPQ Mouser Part No 595-320F28069MPZPQ	Texas Instruments	32-bit Microcontrollers - MCU Automotive C2000 32 -bit MCU with 90 MHz Learn More about Texas Instruments ti tms320f28069	Datasheet	755In Stock	£31.52 £24.92 £23.34 £23.13 View £22.84 Quote	Min.: 1 Mult.: 1	SMD/SMT	HTQFP-100	C28x	256 kB	32 bit	12 bit	90 MHz	54 I/O	100 kB	1.71 V	1.89 V	- 40 C	+ 125 C		Tray
16-bit Microcontrollers - MCU 20 MHz MCU with 256K B Flash 18KB SRAM A A 595-MSP430F5338IZCAR MSP430F5338IZCAT Texas Instruments 1: £11.86 3,250In Stock	Mfr. Part No. MSP430F5338IZCAT Mouser Part No 595-MSP430F5338IZCAT	Texas Instruments	16-bit Microcontrollers - MCU 20 MHz MCU with 256K B Flash 18KB SRAM A A 595-MSP430F5338IZCAR Learn More about Texas Instruments ti msp430f533x mcus	Datasheet	3,250In Stock	Cut Tape £11.86 £9.01 £8.63 £8.06 Reel £6.84 View £6.77 Quote MouseReel Available	Min.: 1 Mult.: 1 : 250	SMD/SMT	NFBGA-113	MSP430	256 kB	16 bit	12 bit	25 MHz	74 I/O	18 kB	1.8 V	3.6 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
16-bit Microcontrollers - MCU 16B Ultra-Low-Pwr Mi crocontroller A 595 A 595-MSP430F5438AIPZR MSP430F5438AIPZ Texas Instruments 1: £12.84 1,824In Stock	Mfr. Part No. MSP430F5438AIPZ Mouser Part No 595-MSP430F5438AIPZ	Texas Instruments	16-bit Microcontrollers - MCU 16B Ultra-Low-Pwr Mi crocontroller A 595 A 595-MSP430F5438AIPZR Learn More about Texas Instruments ti msp430f541xa msp430f543xa mcus	Datasheet	1,824In Stock	£12.84 £9.76 £9.36 £8.23 View £7.83 £7.58 £7.32 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	MSP430	256 kB	16 bit	12 bit	25 MHz	87 I/O	16 kB	1.8 V	3.6 V	- 40 C	+ 85 C		Tray
16-bit Microcontrollers - MCU 20 MHz MCU with 256K B Flash 16KB SRAM A A 595-MSP430F6638IZCAR MSP430F6638IZCAT Texas Instruments 1: £17.46 1,333In Stock	Mfr. Part No. MSP430F6638IZCAT Mouser Part No 595-MSP430F6638IZCAT	Texas Instruments	16-bit Microcontrollers - MCU 20 MHz MCU with 256K B Flash 16KB SRAM A A 595-MSP430F6638IZCAR Learn More about Texas Instruments ti msp430f663x mcus	Datasheet	1,333In Stock	Cut Tape £17.46 £14.11 £13.53 £11.92 Reel £11.32 View £10.81 Quote MouseReel Available	Min.: 1 Mult.: 1 : 250	SMD/SMT	NFBGA-113	MSP430	256 kB	16 bit	12 bit	25 MHz	74 I/O	16 kB	1.8 V	3.6 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
16-bit Microcontrollers - MCU 16 MHz MCU with 256K B FRAM 8KB SRAM LE A 595-MSP430FR5994IPM MSP430FR5994IPMR Texas Instruments 1: £8.48 5,593In Stock	Mfr. Part No. MSP430FR5994IPMR Mouser Part No 595-MSP430FR5994IPMR	Texas Instruments	16-bit Microcontrollers - MCU 16 MHz MCU with 256K B FRAM 8KB SRAM LE A 595-MSP430FR5994IPM Learn More about Texas Instruments ti msp430fr599 msp430fr596	Datasheet	5,593In Stock	Cut Tape £8.48 £6.63 £5.88 £5.66 Reel £5.12 View £5.33 £5.05 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	LQFP-64	MSP430	256 kB	16 bit	12 bit	16 MHz	54 I/O	8 kB	1.8 V	3.6 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel