.hide-partial { max-height: none; } .show-more { display: none; }

256 kB ARM Microcontrollers - MCU

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 1,879

Applied Filters:

Program Memory Size = 256 kB

Manufacturer

Series

Mounting Style

Package/Case

Core

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

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

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 Sub-GHz Wireless Microcontrollers. Arm Cortex-M4 a.48 MHz 256 Kbytes of Flash 64 STM32WLE5CCU7 STMicroelectronics 1: £6.98 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 12/11/2026 7,800 Expected 12/12/2026 Factory Lead Time: 52 Weeks	£6.98 £6.05 £5.74 £5.29 View £5.03 £4.82 £4.71	Min.: 1 Mult.: 1	STM32WL	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 LQFP GRN IND TMP MRL C AT91SAM7X256C-AU Microchip Technology 1: £9.31 86In Stock 3,150On Order	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 3,150On Order On Order Ship Dates Mfr. No: AT91SAM7X256C-AU Stock: 86 Can Dispatch Immediately On Order: 1,440 Expected 11/12/2026 1,710 Expected 26/01/2027 Factory Lead Time: 21 Weeks	£9.31 £8.48 £7.68	Min.: 1 Mult.: 1	SAM7X/XC	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: £9.45 10In Stock 2,000Expected 27/11/2026	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 27/11/2026	Cut Tape £9.45 £9.14 Reel £7.79 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SAM7X/XC	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: £4.65 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	£4.65 £4.23 £3.82	Min.: 1 Mult.: 1	SAM3S	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: £5.20 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	£5.20 £4.71 £4.28	Min.: 1 Mult.: 1	SAM3S	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: £5.72 81In Stock 180Expected 25/02/2027	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 25/02/2027	£5.72 £5.20 £4.71	Min.: 1 Mult.: 1	SAM3U	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: £4.05 148In Stock 180Expected 03/11/2026	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 03/11/2026	£4.05 £3.67 £3.33	Min.: 1 Mult.: 1	SAM4S	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: £4.19 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 £4.19 £4.04 Reel £3.46	Min.: 1 Mult.: 1 : 1,000	SAM4S	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: £3.55 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	£3.55 £3.22 £2.92	Min.: 1 Mult.: 1	SAMD21	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: £3.58 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	£3.58 £3.29 £2.98	Min.: 1 Mult.: 1	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	Tray
ARM Microcontrollers - MCU 120MHZ 256KB FLASH 6 4 TQFP PKG 85C ATSAME51J18A-AU Microchip Technology 1: £4.16 134In Stock 160Expected 17/11/2026	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 17/11/2026	£4.16 £3.82 £3.46	Min.: 1 Mult.: 1	ATSAME51	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 CM23, ULP, Touch, 256K Flash, 48 Pin QFN PIC32CM2532LE00048-I/U5B Microchip Technology 1: £2.78 1,206In Stock	Mfr. Part No. PIC32CM2532LE00048-I/U5B Mouser Part No 579-2532LE00048IU5B	Microchip Technology	ARM Microcontrollers - MCU CM23, ULP, Touch, 256K Flash, 48 Pin QFN Learn More about Microchip Technology microchip pic32cm lx mcus	Datasheet	1,206In Stock	£2.78 £2.55 £2.31	Min.: 1 Mult.: 1		SMD/SMT	VQFN-48	ARM Cortex M23	256 kB	32 bit	12 bit	48 MHz	34 I/O	32 kB	1.62 V	3.63 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU TQFP 48, 256 KB Flash, 32 KB SRAM, 85 C Temp, Green, Tray, Low Power PIC32CM2532LE00048-I/Y8X Microchip Technology 1: £2.75 186In Stock	Mfr. Part No. PIC32CM2532LE00048-I/Y8X Mouser Part No 579-M2532LE00048IY8X	Microchip Technology	ARM Microcontrollers - MCU TQFP 48, 256 KB Flash, 32 KB SRAM, 85 C Temp, Green, Tray, Low Power Learn More about Microchip Technology microchip pic32cm lx mcus	Datasheet	186In Stock	£2.75 £2.52 £2.28	Min.: 1 Mult.: 1		SMD/SMT	TQFP-48	ARM Cortex M23	256 kB	32 bit	12 bit	48 MHz	34 I/O	32 kB	1.62 V	3.63 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU Quad-core Arm® C ortex®-R5F MCU AM263P4AFOMFZCZR Texas Instruments 1: £30.54 3In Stock New Product	Mfr. Part No. AM263P4AFOMFZCZR Mouser Part No 595-AM263P4AFOMFZCZR New Product	Texas Instruments	ARM Microcontrollers - MCU Quad-core Arm® C ortex®-R5F MCU Learn More about Texas Instruments ti am263px arm based mcus	Datasheet	3In Stock	£30.54 £25.72 £24.56 £21.96 View £21.43 Quote	Min.: 1 Mult.: 1	AM263P4	SMD/SMT	NFBGA-324	ARM Cortex R5F	256 kB	32 bit	12 bit	400 MHz	140 I/O	3 MB			- 40 C	+ 105 C		Tray
ARM Microcontrollers - MCU Tiva C Series Microc ontroller A 595-TM4 A 595-TM4C1230H6PMI7 TM4C1230H6PMI7R Texas Instruments 1: £9.66 1,144In Stock	Mfr. Part No. TM4C1230H6PMI7R Mouser Part No 595-TM4C1230H6PMI7R	Texas Instruments	ARM Microcontrollers - MCU Tiva C Series Microc ontroller A 595-TM4 A 595-TM4C1230H6PMI7 Learn More about Texas Instruments ti tiva C	Datasheet	1,144In Stock	Cut Tape £9.66 £7.33 £7.04 £6.20 View Reel £5.51 £5.89 £5.70 £5.51 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	TM4C1230H6PM	SMD/SMT	LQFP-64	ARM Cortex M4F	256 kB	32 bit	12 bit	80 MHz	49 I/O	32 kB	3.15 V	3.63 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU Tiva C Series Microc ontroller A 595-TM4 A 595-TM4C1231H6PGEI7R TM4C1231H6PGEI7 Texas Instruments 1: £12.89 131In Stock	Mfr. Part No. TM4C1231H6PGEI7 Mouser Part No 595-TM4C1231H6PGEI7	Texas Instruments	ARM Microcontrollers - MCU Tiva C Series Microc ontroller A 595-TM4 A 595-TM4C1231H6PGEI7R Learn More about Texas Instruments ti tiva C	Datasheet	131In Stock	£12.89 £9.79 £9.38 £8.28 View £7.87 £7.60 £7.37 Quote	Min.: 1 Mult.: 1	TM4C1231H6PGE	SMD/SMT	LQFP-144	ARM Cortex M4F	256 kB	32 bit	12 bit	80 MHz	105 I/O	32 kB	3.15 V	3.63 V	- 40 C	+ 85 C
ARM Microcontrollers - MCU Tiva C Series Microc ontroller A 595-TM4 A 595-TM4C1231H6PMI7 TM4C1231H6PMI7R Texas Instruments 1: £9.68 978In Stock	Mfr. Part No. TM4C1231H6PMI7R Mouser Part No 595-TM4C1231H6PMI7R	Texas Instruments	ARM Microcontrollers - MCU Tiva C Series Microc ontroller A 595-TM4 A 595-TM4C1231H6PMI7 Learn More about Texas Instruments ti tiva C	Datasheet	978In Stock	Cut Tape £9.68 £7.36 £7.05 £6.22 View Reel £5.53 £5.91 £5.71 £5.53 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	TM4C1231H6PM	SMD/SMT	LQFP-64	ARM Cortex M4F	256 kB	32 bit	12 bit	80 MHz	43 I/O	32 kB	3.15 V	3.63 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU Tiva C Series MCU A 595-TM4C1232H6PMIR A A 595-TM4C1232H6PMIR TM4C1232H6PMI Texas Instruments 1: £13.80 14In Stock	Mfr. Part No. TM4C1232H6PMI Mouser Part No 595-TM4C1232H6PMI	Texas Instruments	ARM Microcontrollers - MCU Tiva C Series MCU A 595-TM4C1232H6PMIR A A 595-TM4C1232H6PMIR Learn More about Texas Instruments ti tiva C	Datasheet	14In Stock	£13.80 £10.48 £10.06 £7.70	Min.: 1 Mult.: 1	TM4C1232H6PM	SMD/SMT	LQFP-64	ARM Cortex M4F	256 kB	32 bit	12 bit	80 MHz	49 I/O	32 kB	3.3 V	3.3 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU Tiva C Series MCU A 595-TM4C1233H6PGEIR A 595-TM4C1233H6PGEIR TM4C1233H6PGEI Texas Instruments 1: £14.74 16In Stock	Mfr. Part No. TM4C1233H6PGEI Mouser Part No 595-TM4C1233H6PGEI	Texas Instruments	ARM Microcontrollers - MCU Tiva C Series MCU A 595-TM4C1233H6PGEIR A 595-TM4C1233H6PGEIR Learn More about Texas Instruments ti tiva C	Datasheet	16In Stock	£14.74 £11.73 £10.61 £10.37 View £10.15 £10.04 Quote	Min.: 1 Mult.: 1	TM4C1233H6PGE	SMD/SMT	LQFP-144	ARM Cortex M4F	256 kB	32 bit	12 bit	80 MHz	105 I/O	32 kB	3.3 V	3.3 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU Tiva C Series Microc ontroller A 595-TM4 A 595-TM4C123FH6PMI7R TM4C123FH6PMI7 Texas Instruments 1: £15.02 3In Stock	Mfr. Part No. TM4C123FH6PMI7 Mouser Part No 595-TM4C123FH6PMI7	Texas Instruments	ARM Microcontrollers - MCU Tiva C Series Microc ontroller A 595-TM4 A 595-TM4C123FH6PMI7R Learn More about Texas Instruments ti tiva C	Datasheet	3In Stock	£15.02 £12.13 £11.63 £9.25	Min.: 1 Mult.: 1	TM4C123FH6PM	SMD/SMT	LQFP-64	ARM Cortex M4F	256 kB	32 bit	12 bit	80 MHz	49 I/O	32 kB	3.15 V	3.63 V	- 40 C	+ 105 C		Tray
ARM Microcontrollers - MCU Tiva C Series MCU A 595-TM4C123GH6PZIR A A 595-TM4C123GH6PZIR TM4C123GH6PZI Texas Instruments 1: £15.52 1In Stock	Mfr. Part No. TM4C123GH6PZI Mouser Part No 595-TM4C123GH6PZI	Texas Instruments	ARM Microcontrollers - MCU Tiva C Series MCU A 595-TM4C123GH6PZIR A A 595-TM4C123GH6PZIR Learn More about Texas Instruments ti tiva C	Datasheet	1In Stock	£15.52 £11.69 £10.65 £10.06 View £9.50 £9.41 Quote	Min.: 1 Mult.: 1	TM4C123GH6PZ	SMD/SMT	LQFP-100	ARM Cortex M4F	256 kB	32 bit	12 bit	80 MHz	69 I/O	32 kB	1.2 V	1.2 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU Tiva C Series Microc ontroller A 595-TM4 A 595-TM4C123GH6PZI7R TM4C123GH6PZI7 Texas Instruments 1: £15.78 8In Stock	Mfr. Part No. TM4C123GH6PZI7 Mouser Part No 595-TM4C123GH6PZI7	Texas Instruments	ARM Microcontrollers - MCU Tiva C Series Microc ontroller A 595-TM4 A 595-TM4C123GH6PZI7R Learn More about Texas Instruments ti tiva C	Datasheet	8In Stock	£15.78 £12.58 £12.06 £10.62	Min.: 1 Mult.: 1	TM4C123GH6PZ	SMD/SMT	LQFP-100	ARM Cortex M4F	256 kB	32 bit	12 bit	80 MHz	69 I/O	32 kB	3.15 V	3.63 V	- 40 C	+ 105 C
ARM Microcontrollers - MCU USB-C HV MCU CYPM132197BZXIXQMA1 Infineon Technologies 1: £6.14 17In Stock	Mfr. Part No. CYPM132197BZXIXQMA1 Mouser Part No 726-CYPM132197BZXIXQ	Infineon Technologies	ARM Microcontrollers - MCU USB-C HV MCU Learn More about Infineon Technologies infineon usb c ez pd pmg1 s3	Datasheet	17In Stock	£6.14 £4.47 £4.11 £3.73 View £3.51 £3.33	Min.: 1 Mult.: 1	EZ-PD PMG1-S3	SMD/SMT	BGA-97	ARM Cortex M0	256 kB	32 bit	No ADC	48 MHz	50 I/O		1.71 V	5.5 V	- 40 C	+ 85 C		Tray
ARM Microcontrollers - MCU MM-LEGACY MM CY9BF524KPMC-G-MNE2 Infineon Technologies 1: £5.90 264In Stock	Mfr. Part No. CY9BF524KPMC-G-MNE2 Mouser Part No 727-C9BF524KPMCGMNE2	Infineon Technologies	ARM Microcontrollers - MCU MM-LEGACY MM	Datasheet	264In Stock	£5.90 £4.55 £4.00 £3.83 View £3.66 £3.48 £3.46 £3.35 Quote	Min.: 1 Mult.: 1	MB9B520M	SMD/SMT	LQFP-48	ARM Cortex M3	256 kB	32 bit	12 bit	72 MHz	35 I/O	32 kB	2.7 V	5.5 V	- 40 C	+ 105 C		Tray
ARM Microcontrollers - MCU S32K118 Arm Cortex-M0+, 48 MHz, 256 Kb Flash, CAN FD, FlexIO, CSEc security, LQFP64 - S32K MCUs for General-Purpose FS32K118LAT0MLHR NXP Semiconductors 1: £5.39 851In Stock	Mfr. Part No. FS32K118LAT0MLHR Mouser Part No 771-FS32K118LAT0MLHR	NXP Semiconductors	ARM Microcontrollers - MCU S32K118 Arm Cortex-M0+, 48 MHz, 256 Kb Flash, CAN FD, FlexIO, CSEc security, LQFP64 - S32K MCUs for General-Purpose Learn More about NXP Semiconductors nxp s32k mcus	Datasheet	851In Stock	Cut Tape £5.39 £4.12 £3.61 £3.39 Reel £2.45 View £3.21 £2.88 £2.49 £2.38 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	S32K1	SMD/SMT	LQFP-64	ARM Cortex M0+	256 kB	32 bit	12 bit	48 MHz	58 I/O	25 kB	2.7 V	5.5 V	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape, MouseReel