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256 kB ARM Microcontrollers - MCU

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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.	Series	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 Kinetis 2.x 512K MK20DX256VLL10 NXP Semiconductors 1: £13.38 3,610In Stock	Mfr. Part No. MK20DX256VLL10 Mouser Part No 841-MK20DX256VLL10	NXP Semiconductors	ARM Microcontrollers - MCU Kinetis 2.x 512K Learn More about NXP Semiconductors nxp kinetis k2x mcu	Datasheet	3,610In Stock	£13.38 £10.16 £9.74 £8.59 View £8.16 £7.90 £7.64 Quote	Min.: 1 Mult.: 1	K20_100	SMD/SMT	LQFP-100	ARM Cortex M4	256 kB	32 bit	2 x 16 bit	100 MHz	66 I/O	64 kB	1.71 V	3.6 V	- 40 C	+ 105 C		Tray
ARM Microcontrollers - MCU 32Bit MCU 256KB Flash MK22FN256VLH12 NXP Semiconductors 1: £10.28 2,224In Stock	Mfr. Part No. MK22FN256VLH12 Mouser Part No 841-MK22FN256VLH12	NXP Semiconductors	ARM Microcontrollers - MCU 32Bit MCU 256KB Flash Learn More about NXP Semiconductors nxp kinetis k2x mcu	Datasheet	2,224In Stock	£10.28 £7.80 £7.48 £6.59 View £6.27 £6.07 £5.87 Quote	Min.: 1 Mult.: 1	K22_120	SMD/SMT	LQFP-64	ARM Cortex M4	256 kB	32 bit	16 bit	120 MHz	40 I/O	48 kB	1.71 V	3.6 V	- 40 C	+ 105 C		Tray
ARM Microcontrollers - MCU Mainstream Arm Cortex-M0 Low-volt line 1,8V MCU 256 Kbytes of Flash 48 MHz CPU, STM32F098RCH6 STMicroelectronics 1: £5.47 321In Stock	Mfr. Part No. STM32F098RCH6 Mouser Part No 511-STM32F098RCH6	STMicroelectronics	ARM Microcontrollers - MCU Mainstream Arm Cortex-M0 Low-volt line 1,8V MCU 256 Kbytes of Flash 48 MHz CPU, Learn More about STMicroelectronics stm32f0	Datasheet	321In Stock	£5.47 £4.21 £3.68 £3.53 View £3.51 £3.08 £3.02 £2.99 Quote	Min.: 1 Mult.: 1	STM32F098RC	SMD/SMT	UFBGA-64	ARM Cortex M0	256 kB	32 bit	12 bit	48 MHz	51 I/O	32 kB	1.72 V	1.88 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU 32B Cortex-M3 LCD 384Kb Flsh 32MHz CPU STM32L162VCH6 STMicroelectronics 1: £8.25 190In Stock	Mfr. Part No. STM32L162VCH6 Mouser Part No 511-STM32L162VCH6	STMicroelectronics	ARM Microcontrollers - MCU 32B Cortex-M3 LCD 384Kb Flsh 32MHz CPU Learn More about STMicroelectronics stm32l1	Datasheet	190In Stock	£8.25 £6.42 £5.91 £5.39 View £4.96 £4.84 £4.55 Quote	Min.: 1 Mult.: 1	STM32L162VC	SMD/SMT	LQFP-100	ARM Cortex M3	256 kB	32 bit	12 bit	32 MHz	83 I/O	32 kB	1.8 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 , LCD, USB STM32L433VCT3 STMicroelectronics 1: £6.23 294In Stock	Mfr. Part No. STM32L433VCT3 Mouser Part No 511-STM32L433VCT3	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash , LCD, USB Learn More about STMicroelectronics stm stm32l4 mcu fpu	Datasheet	294In Stock	£6.23 £4.55 £4.16 £3.88 View £3.73 £3.55 £3.53 £3.51	Min.: 1 Mult.: 1	STM32L433VC	SMD/SMT	LQFT-100	ARM Cortex M4	256 kB	32 bit	12 bit	80 MHz	83 I/O	64 kB	1.71 V	3.6 V	- 40 C	+ 125 C		Tray
ARM Microcontrollers - MCU Stellaris Cortex-M3 Fury 32-Bit ARM LM3S1968-IQC50-A2 Texas Instruments 1: £31.97 171In Stock NRND	Mfr. Part No. LM3S1968-IQC50-A2 Mouser Part No 868-LM3S1968-IQC50 NRND	Texas Instruments	ARM Microcontrollers - MCU Stellaris Cortex-M3 Fury 32-Bit ARM Learn More about Texas Instruments ti processors solutions	Datasheet	171In Stock	£31.97 £24.71 £23.84 £23.03 View £22.18 £22.14 Quote	Min.: 1 Mult.: 1	LM3S1968	SMD/SMT	LQFP-100	ARM Cortex M3	256 kB	32 bit	10 bit	50 MHz	52 I/O	64 kB	2.25 V	2.75 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU 256K Flash, 52K SRAM 32-bit ARM Cortex M3 ATSAM3U4EA-AU Microchip Technology 1: £6.91 1,649In Stock	Mfr. Part No. ATSAM3U4EA-AU Mouser Part No 556-ATSAM3U4EA-AU	Microchip Technology	ARM Microcontrollers - MCU 256K Flash, 52K SRAM 32-bit ARM Cortex M3 Learn More about Microchip Technology microchip sam3u mcus	Datasheet	1,649In Stock	£6.91 £6.30 £5.70	Min.: 1 Mult.: 1	SAM3U	SMD/SMT	LQFP-144	ARM Cortex M3	256 kB	32 bit	12 bit	96 MHz	96 I/O	52 kB	1.62 V	1.95 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU QFP100,GREEN IND TEMP, MRL A ATSAM3X4CA-AU Microchip Technology 1: £8.26 160In Stock	Mfr. Part No. ATSAM3X4CA-AU Mouser Part No 556-ATSAM3X4CA-AU	Microchip Technology	ARM Microcontrollers - MCU QFP100,GREEN IND TEMP, MRL A Learn More about Microchip Technology microchip sam3x mcu	Datasheet	160In Stock	£8.26 £7.52 £6.79	Min.: 1 Mult.: 1	SAM3X	SMD/SMT	LQFP-100	ARM Cortex M3	256 kB	32 bit	12 bit	84 MHz	63 I/O	64 kB	1.62 V	1.95 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU QFN,GREEN,IND TEMP CRYPTO MRL A ATSAM4LC4BA-MU Microchip Technology 1: £5.62 377In Stock	Mfr. Part No. ATSAM4LC4BA-MU Mouser Part No 556-ATSAM4LC4BA-MU	Microchip Technology	ARM Microcontrollers - MCU QFN,GREEN,IND TEMP CRYPTO MRL A Learn More about Microchip Technology atmel atsam4l	Datasheet	377In Stock	£5.62 £5.11 £4.63	Min.: 1 Mult.: 1	SAM4L	SMD/SMT	QFN-64	ARM Cortex M4	256 kB	32 bit	12 bit	48 MHz	43 I/O	32 kB	1.62 V	1.98 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU 32TQFP,105C TEMP, GREEN, 5V, 48MHZ, T&R ATSAMC21E18A-ANT Microchip Technology 1: £3.34 3,148In Stock	Mfr. Part No. ATSAMC21E18A-ANT Mouser Part No 556-ATSAMC21E18A-ANT	Microchip Technology	ARM Microcontrollers - MCU 32TQFP,105C TEMP, GREEN, 5V, 48MHZ, T&R Learn More about Microchip Technology atmel smart samc mcu	Datasheet	3,148In Stock	Cut Tape £3.34 £3.22 Reel £2.76 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	ATSAMC21	SMD/SMT	TQFP-32	ARM Cortex M0+	256 kB	32 bit	2 x 12 bit	48 MHz	26 I/O	32 kB	2.7 V	5.5 V	- 40 C	+ 105 C	AEC-Q100	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32TQFP,85C TEMP, GREEN, 5V, 48MHZ, T&R ATSAMC21E18A-AUT Microchip Technology 1: £3.19 1,915In Stock	Mfr. Part No. ATSAMC21E18A-AUT Mouser Part No 556-ATSAMC21E18A-AUT	Microchip Technology	ARM Microcontrollers - MCU 32TQFP,85C TEMP, GREEN, 5V, 48MHZ, T&R Learn More about Microchip Technology atmel smart samc mcu	Datasheet	1,915In Stock	Cut Tape £3.19 £2.89 £2.84 £2.83 £2.74 Reel £2.62 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	ATSAMC21	SMD/SMT	TQFP-32	ARM Cortex M0+	256 kB	32 bit	2 x 12 bit	48 MHz	26 I/O	32 kB	2.7 V	5.5 V	- 40 C	+ 85 C	AEC-Q100	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 64TQFP,85C TEMP, GREEN, 5V, 48MHZ, T&R ATSAMC21J18A-AUT Microchip Technology 1: £3.51 1,741In Stock 7,500Expected 07/01/2027	Mfr. Part No. ATSAMC21J18A-AUT Mouser Part No 556-ATSAMC21J18A-AUT	Microchip Technology	ARM Microcontrollers - MCU 64TQFP,85C TEMP, GREEN, 5V, 48MHZ, T&R Learn More about Microchip Technology atmel smart samc mcu	Datasheet	1,741In Stock 7,500Expected 07/01/2027	Cut Tape £3.51 £3.40 Reel £2.90 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	ATSAMC21	SMD/SMT	TQFP-64	ARM Cortex M0+	256 kB	32 bit	2 x 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 Cortex-M0+ 256KB FLASH 32KB SRAM ATSAMD20G18A-AU Microchip Technology 1: £2.49 1,307In Stock	Mfr. Part No. ATSAMD20G18A-AU Mouser Part No 556-ATSAMD20G18A-AU	Microchip Technology	ARM Microcontrollers - MCU Cortex-M0+ 256KB FLASH 32KB SRAM Learn More about Microchip Technology atmel samd20 mcu	Datasheet	1,307In Stock	£2.49 £2.25 £2.04	Min.: 1 Mult.: 1	SAMD1/2x	SMD/SMT	TQFP-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		Tray
ARM Microcontrollers - MCU Cortex-M0+ 256KB FLASH 32KB SRAM ATSAMD20J18A-AU Microchip Technology 1: £2.61 1,503In Stock	Mfr. Part No. ATSAMD20J18A-AU Mouser Part No 556-ATSAMD20J18A-AU	Microchip Technology	ARM Microcontrollers - MCU Cortex-M0+ 256KB FLASH 32KB SRAM Learn More about Microchip Technology atmel samd20 mcu	Datasheet	1,503In Stock	£2.61 £2.37 £2.17	Min.: 1 Mult.: 1	SAMD1/2x	SMD/SMT	TQFP-64	ARM Cortex M0+	256 kB	32 bit	12 bit	48 MHz	52 I/O	32 kB	1.62 V	1.95 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU Cortex-M0+ 256KB FLASH 32KB SRAM ATSAMD20J18A-AUT Microchip Technology 1: £2.66 1,763In Stock	Mfr. Part No. ATSAMD20J18A-AUT Mouser Part No 556-ATSAMD20J18A-AUT	Microchip Technology	ARM Microcontrollers - MCU Cortex-M0+ 256KB FLASH 32KB SRAM Learn More about Microchip Technology atmel samd20 mcu	Datasheet	1,763In Stock	Cut Tape £2.66 £2.58 Reel £2.19 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	SAMD1/2x	SMD/SMT	TQFP-64	ARM Cortex M0+	256 kB	32 bit	12 bit	48 MHz	52 I/O	32 kB	1.62 V	1.95 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 48TQFP 125C, GREEN,1.6-3.6V,48MHz ATSAMD21G18A-AFT Microchip Technology 1: £3.49 1,163In Stock	Mfr. Part No. ATSAMD21G18A-AFT Mouser Part No 556-ATSAMD21G18A-AFT	Microchip Technology	ARM Microcontrollers - MCU 48TQFP 125C, GREEN,1.6-3.6V,48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	1,163In Stock	Cut Tape £3.49 £3.37 Reel £2.87 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SAMD21	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	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 256KB 32KB 48TQFP GRN1.6-3.6V48MHz ATSAMD21G18A-AU Microchip Technology 1: £3.13 1,599In Stock	Mfr. Part No. ATSAMD21G18A-AU Mouser Part No 556-ATSAMD21G18A-AU	Microchip Technology	ARM Microcontrollers - MCU 256KB 32KB 48TQFP GRN1.6-3.6V48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	1,599In Stock	£3.13 £2.84 £2.58	Min.: 1 Mult.: 1	SAMD21	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	Tray
ARM Microcontrollers - MCU 64TQFP 125C, GREEN,1.6-3.6V,48MHz ATSAMD21J18A-AF Microchip Technology 1: £3.62 2,202In Stock	Mfr. Part No. ATSAMD21J18A-AF Mouser Part No 556-ATSAMD21J18A-AF	Microchip Technology	ARM Microcontrollers - MCU 64TQFP 125C, GREEN,1.6-3.6V,48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	2,202In Stock	£3.62 £3.29 £2.98	Min.: 1 Mult.: 1	SAMD21	SMD/SMT	TQFP-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 256KB 32KB 64TQFP GRN1.6-3.6V48MHz ATSAMD21J18A-AU Microchip Technology 1: £3.29 2,175In Stock	Mfr. Part No. ATSAMD21J18A-AU Mouser Part No 556-ATSAMD21J18A-AU	Microchip Technology	ARM Microcontrollers - MCU 256KB 32KB 64TQFP GRN1.6-3.6V48MHz Learn More about Microchip Technology sam d21 mcus	Datasheet	2,175In Stock	£3.29 £2.99 £2.70	Min.: 1 Mult.: 1	SAMD21	SMD/SMT	TQFP-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	Tray
ARM Microcontrollers - MCU 120MHZ 256KB FLASH 4 8 QFN PKG IN 85C ATSAMD51G18A-MUT Microchip Technology 1: £3.67 356In Stock	Mfr. Part No. ATSAMD51G18A-MUT Mouser Part No 556-ATSAMD51G18AMUT	Microchip Technology	ARM Microcontrollers - MCU 120MHZ 256KB FLASH 4 8 QFN PKG IN 85C Learn More about Microchip Technology microchip sam d5 e5	Datasheet	356In Stock	Cut Tape £3.67 £3.60 Reel £3.06	Min.: 1 Mult.: 1 : 4,000	ATSAMD51	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	Reel, Cut Tape
ARM Microcontrollers - MCU ARM Cortex-M0+ 256K Flash/32k SRAM ATSAML21E18B-AUT Microchip Technology 1: £4.54 1,729In Stock	Mfr. Part No. ATSAML21E18B-AUT Mouser Part No 556-ATSAML21E18B-AUT	Microchip Technology	ARM Microcontrollers - MCU ARM Cortex-M0+ 256K Flash/32k SRAM Learn More about Microchip Technology microchip sam l21 mcus	Datasheet	1,729In Stock	Cut Tape £4.54 £4.40 Reel £3.74 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	SAML21	SMD/SMT	TQFP-32	ARM Cortex M0+	256 kB	32 bit	12 bit	48 MHz	25 I/O	32 kB	1.62 V	3.63 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 100TQFP 85C, GREEN,1.6-3.6V,32MHz ATSAML22N18A-AUT Microchip Technology 1: £4.54 1,946In Stock	Mfr. Part No. ATSAML22N18A-AUT Mouser Part No 556-ATSAML22N18A-AUT	Microchip Technology	ARM Microcontrollers - MCU 100TQFP 85C, GREEN,1.6-3.6V,32MHz Learn More about Microchip Technology atmel sam l22	Datasheet	1,946In Stock	Cut Tape £4.54 £4.37 Reel £3.74	Min.: 1 Mult.: 1 : 1,000	SAML22	SMD/SMT	TQFP-100	ARM Cortex M0+	256 kB	32 bit	12 bit	32 MHz	82 I/O	32 kB	1.62 V	3.63 V	- 40 C	+ 85 C		Reel, Cut Tape
ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB EFM32LG330F256G-F-QFN64 Silicon Labs 1: £9.06 1,407In Stock	Mfr. Part No. EFM32LG330F256G-F-QFN64 Mouser Part No 634-32LG330F256GFQFN	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	1,407In Stock	£9.06 £7.28 £6.63 £6.21 View £6.02 £5.74 £5.46 Quote	Min.: 1 Mult.: 1	EFM32LG	SMD/SMT	QFN-64	ARM Cortex M3	256 kB	32 bit	12 bit	48 MHz	53 I/O	32 kB	1.98 V	3.8 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU ARM Cortex-M4 32-bit 40 MHz 256 kB MCU EFM32PG1B100F256GM32-C0 Silicon Labs 1: £4.48 436In Stock 2,450Expected 20/11/2026	Mfr. Part No. EFM32PG1B100F256GM32-C0 Mouser Part No 634-PG1B100F256GM320	Silicon Labs	ARM Microcontrollers - MCU ARM Cortex-M4 32-bit 40 MHz 256 kB MCU Learn More about Silicon Labs silabs efm32 pearl gecko mcu	Datasheet	436In Stock 2,450Expected 20/11/2026	£4.48 £3.55 £3.20 £2.94 View £2.72 £2.71 £2.70	Min.: 1 Mult.: 1	EFM32PG	SMD/SMT	QFN-32	ARM Cortex M4	256 kB	32 bit	12 bit	40 MHz	24 I/O	32 kB	1.85 V	3.8 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU ARM Cortex-M33 32-bit 80 MHz 256 kB AES MCU EFM32PG23B200F256IM40-C Silicon Labs 1: £2.78 3,374In Stock	Mfr. Part No. EFM32PG23B200F256IM40-C Mouser Part No 634-PG23200F256IM40C	Silicon Labs	ARM Microcontrollers - MCU ARM Cortex-M33 32-bit 80 MHz 256 kB AES MCU Learn More about Silicon Labs efm32pg23 microcontrollers	Datasheet	3,374In Stock	£2.78 £2.07 £1.89 £1.69 View £1.61 £1.57 £1.49 £1.45 £1.42	Min.: 1 Mult.: 1	PG23	SMD/SMT	QFN-40	ARM Cortex M33	256 kB	32 bit	12 bit/16 bit/20 bit	80 MHz	29 I/O	64 kB	1.71 V	3.8 V	- 40 C	+ 125 C		Tray