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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	Packaging
ARM Microcontrollers - MCU Mainstream Arm Cortex-M0+ 32-bit MCU up to 256KB Flash 144KB RAM STM32G0B1KCT6 STMicroelectronics 1: £3.85 6,000On Order	Mfr. Part No. STM32G0B1KCT6 Mouser Part No 511-STM32G0B1KCT6	STMicroelectronics	ARM Microcontrollers - MCU Mainstream Arm Cortex-M0+ 32-bit MCU up to 256KB Flash 144KB RAM Learn More about STMicroelectronics stm stm32g0 microcontrollers	Datasheet	6,000On Order On Order Ship Dates Mfr. No: STM32G0B1KCT6 Stock: 0 On Order: 1,500 Expected 22/02/2027 4,500 TBD Factory Lead Time: 52 Weeks	£3.85 £2.79 £2.51 £2.30 View £2.19 £2.06	Min.: 1 Mult.: 1 Max.: 750	STM32G0	SMD/SMT		ARM Cortex M0+	256 kB	32 bit	12 bit	64 MHz	30 I/O	144 kB	1.7 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Mainstream Arm Cortex-M0+ 32-bit MCU up to 256KB 144KB RAM 6x USART timers ADC D STM32G0B1KCU7 STMicroelectronics 1: £4.14 2,932Expected 22/02/2027	Mfr. Part No. STM32G0B1KCU7 Mouser Part No 511-STM32G0B1KCU7	STMicroelectronics	ARM Microcontrollers - MCU Mainstream Arm Cortex-M0+ 32-bit MCU up to 256KB 144KB RAM 6x USART timers ADC D Learn More about STMicroelectronics stm stm32g0 microcontrollers	Datasheet	2,932Expected 22/02/2027	£4.14 £2.97 £2.69 £2.44 £2.38	Min.: 1 Mult.: 1 Max.: 300	STM32G0	SMD/SMT	UFQFPN-32	ARM Cortex M0+	256 kB	32 bit	12 bit	64 MHz	30 I/O	144 kB	1.7 V	3.6 V	- 40 C	+ 105 C	Tray
ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170MHz 256Kbytes of Flash Math Accel, High Analog l STM32G473CCT3 STMicroelectronics 1: £6.78 2,963On Order	Mfr. Part No. STM32G473CCT3 Mouser Part No 511-STM32G473CCT3	STMicroelectronics	ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170MHz 256Kbytes of Flash Math Accel, High Analog l Learn More about STMicroelectronics stm stm32g4 mcus	Datasheet	2,963On Order	£6.78 £5.09 £4.85 £4.34	Min.: 1 Mult.: 1 Max.: 100	STM32G4	SMD/SMT	LQFP-48	ARM Cortex M4	256 kB	32 bit	5 x 12 bit	170 MHz	42 I/O	128 kB	1.71 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170MHz 256Kbytes of Flash Math Accel, High Analog l STM32G473CCU6 STMicroelectronics 1: £5.81 1,560On Order	Mfr. Part No. STM32G473CCU6 Mouser Part No 511-STM32G473CCU6	STMicroelectronics	ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170MHz 256Kbytes of Flash Math Accel, High Analog l Learn More about STMicroelectronics stm stm32g4 mcus	Datasheet	1,560On Order	£5.81 £4.48 £4.01 £3.77	Min.: 1 Mult.: 1 Max.: 150	STM32G4	SMD/SMT	UFQFPN-48	ARM Cortex M4	256 kB	32 bit	5 x 12 bit	170 MHz	42 I/O	128 kB	1.71 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU High-performance Arm Cortex-M33 MCU 256-Kbyte Flash 272-Kbyte RAM 250 MHz CPU STM32H523CCT6 STMicroelectronics 1: £3.88 1,481Expected 24/12/2026	Mfr. Part No. STM32H523CCT6 Mouser Part No 511-STM32H523CCT6	STMicroelectronics	ARM Microcontrollers - MCU High-performance Arm Cortex-M33 MCU 256-Kbyte Flash 272-Kbyte RAM 250 MHz CPU Learn More about STMicroelectronics stm stm32h5 mcus	Datasheet	1,481Expected 24/12/2026	£3.88 £2.78 £2.51 £2.29 View £2.27 £2.08	Min.: 1 Mult.: 1	STM32H5	SMD/SMT	LQFP-48	ARM Cortex M33	256 kB	32 bit	12 bit	250 MHz		272 kB	1.71 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU High-performance Arm Cortex-M33 MCU 256-Kbyte Flash 272-Kbyte RAM 250 MHz CPU STM32H523RCT6 STMicroelectronics 1: £3.96 1,920Expected 24/03/2027	Mfr. Part No. STM32H523RCT6 Mouser Part No 511-STM32H523RCT6	STMicroelectronics	ARM Microcontrollers - MCU High-performance Arm Cortex-M33 MCU 256-Kbyte Flash 272-Kbyte RAM 250 MHz CPU Learn More about STMicroelectronics stm stm32h5 mcus	Datasheet	1,920Expected 24/03/2027	£3.96 £3.01 £2.67 £2.51 £2.30	Min.: 1 Mult.: 1	STM32H5	SMD/SMT	LQFP-64	ARM Cortex M33	256 kB	32 bit	12 bit	250 MHz		272 kB	1.71 V	3.6 V	- 40 C	+ 105 C	Tray
ARM Microcontrollers - MCU High-performance Arm Cortex-M33 MCU 256-Kbyte Flash 272-Kbyte RAM 250 MHz CPU STM32H523VCI6 STMicroelectronics 1: £4.91 2,486Expected 10/05/2027	Mfr. Part No. STM32H523VCI6 Mouser Part No 511-STM32H523VCI6	STMicroelectronics	ARM Microcontrollers - MCU High-performance Arm Cortex-M33 MCU 256-Kbyte Flash 272-Kbyte RAM 250 MHz CPU Learn More about STMicroelectronics stm stm32h5 mcus	Datasheet	2,486Expected 10/05/2027	£4.91 £3.66 £3.32 £3.03 View £2.98 £2.74	Min.: 1 Mult.: 1	STM32H5	SMD/SMT	UFBGA-100	ARM Cortex M33	256 kB	32 bit	12 bit	250 MHz		272 kB	1.71 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU High-performance Arm Cortex-M33 MCU 256-Kbyte Flash 272-Kbyte RAM 250 MHz CPU STM32H523VCT6 STMicroelectronics 1: £4.49 540Expected 26/04/2027	Mfr. Part No. STM32H523VCT6 Mouser Part No 511-STM32H523VCT6	STMicroelectronics	ARM Microcontrollers - MCU High-performance Arm Cortex-M33 MCU 256-Kbyte Flash 272-Kbyte RAM 250 MHz CPU Learn More about STMicroelectronics stm stm32h5 mcus	Datasheet	540Expected 26/04/2027	£4.49 £3.42 £2.99 £2.86 View £2.84 £2.49	Min.: 1 Mult.: 1	STM32H5	SMD/SMT	LQFP-100	ARM Cortex M33	256 kB	32 bit	12 bit	250 MHz		272 kB	1.71 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra Low M3 ARM 128 Kbytes 32 MHz STM32L151CCT6 STMicroelectronics 1: £6.63 1,987Expected 26/02/2027	Mfr. Part No. STM32L151CCT6 Mouser Part No 511-STM32L151CCT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra Low M3 ARM 128 Kbytes 32 MHz Learn More about STMicroelectronics stm32l1	Datasheet	1,987Expected 26/02/2027	£6.63 £5.08 £4.52 £4.24 View £4.05 £4.01	Min.: 1 Mult.: 1	STM32L151CC	SMD/SMT	LQFP-48	ARM Cortex M3	256 kB	32 bit	12 bit	32 MHz	37 I/O	32 kB	1.65 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra Low M3 ARM 128 Kbytes 32 MHz STM32L151RCT6 STMicroelectronics 1: £6.69 1,920Expected 08/03/2027	Mfr. Part No. STM32L151RCT6 Mouser Part No 511-STM32L151RCT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra Low M3 ARM 128 Kbytes 32 MHz Learn More about STMicroelectronics stm32l1	Datasheet	1,920Expected 08/03/2027	£6.69 £5.08 £4.69 £4.20 View £4.10 £3.85	Min.: 1 Mult.: 1	STM32L151RC	SMD/SMT	LQFP-64	ARM Cortex M3	256 kB	32 bit	12 bit	32 MHz	51 I/O	32 kB	1.65 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 STM32L433CCT3 STMicroelectronics 1: £5.51 2,750On Order	Mfr. Part No. STM32L433CCT3 Mouser Part No 511-STM32L433CCT3	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	2,750On Order On Order Ship Dates Mfr. No: STM32L433CCT3 Stock: 0 On Order: 1,250 Expected 22/02/2027 1,500 TBD Factory Lead Time: 52 Weeks	£5.51 £4.16 £3.72 £3.47 £3.39	Min.: 1 Mult.: 1 Max.: 250	STM32L433CC	SMD/SMT	LQFP-48	ARM Cortex M4	256 kB	32 bit	12 bit	80 MHz	38 I/O	64 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 STM32L433VCI6 STMicroelectronics 1: £6.21 2,496On Order	Mfr. Part No. STM32L433VCI6 Mouser Part No 511-STM32L433VCI6	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	2,496On Order	£6.21 £4.34 £4.14 £3.60 View £3.43 £3.30	Min.: 1 Mult.: 1 Max.: 500	STM32L433VC	SMD/SMT	UFBGA-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	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 kbytes of Flash USB Device, DFS STM32L452VCT6 STMicroelectronics 1: £6.27 2,700On Order	Mfr. Part No. STM32L452VCT6 Mouser Part No 511-STM32L452VCT6	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	2,700On Order	£6.27 £4.52 £4.20 £3.83	Min.: 1 Mult.: 1 Max.: 200	STM32L452VC	SMD/SMT	LQFP-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 STM32L475RCT6 STMicroelectronics 1: £5.83 1,920On Order	Mfr. Part No. STM32L475RCT6 Mouser Part No 511-STM32L475RCT6	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	1,920On Order	£5.83 £4.49 £4.11 £3.78	Min.: 1 Mult.: 1 Max.: 300	STM32L475RC	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 Arm Cortex-M0+ MCU 256-Kbytes Flash LCD, USB, 48 MHz CPU STM32U073CCT6 STMicroelectronics 1: £3.02 7,483On Order	Mfr. Part No. STM32U073CCT6 Mouser Part No 511-STM32U073CCT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 256-Kbytes Flash LCD, USB, 48 MHz CPU Learn More about STMicroelectronics stm stm32u0 low power mcus	Datasheet	7,483On Order On Order Ship Dates Mfr. No: STM32U073CCT6 Stock: 0 On Order: 2,983 Expected 12/11/2026 4,500 Expected 25/01/2027 Factory Lead Time: 52 Weeks	£3.02 £2.27 £1.96 £1.87 View £1.77 £1.71 £1.70	Min.: 1 Mult.: 1 Max.: 1,500	STM32U0			ARM Cortex M0	256 kB			48 MHz							Tray
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 256-Kbytes Flash LCD, USB, AES, 48 MHz CPU STM32U083CCT6 STMicroelectronics 1: £3.47 2,928Expected 25/01/2027	Mfr. Part No. STM32U083CCT6 Mouser Part No 511-STM32U083CCT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 256-Kbytes Flash LCD, USB, AES, 48 MHz CPU Learn More about STMicroelectronics stm stm32u0 low power mcus	Datasheet	2,928Expected 25/01/2027	£3.47 £2.65 £2.32 £2.19 View £2.09 £2.04	Min.: 1 Mult.: 1 Max.: 500	STM32U0			ARM Cortex M0	256 kB			48 MHz							Tray
ARM Microcontrollers - MCU Sub-GHz Wireless MCU Single-core Arm Cortex-M0+ 64 MHz 256 Kb Flash 32 Kb SRAM STM32WL33KCV6 STMicroelectronics 1: £4.43 2,940Expected 29/01/2027	Mfr. Part No. STM32WL33KCV6 Mouser Part No 511-STM32WL33KCV6	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	2,940Expected 29/01/2027	£4.43 £3.86 £3.66 £3.41 £3.33	Min.: 1 Mult.: 1	STM32WL33	SMD/SMT	VFQFPN-32	ARM Cortex M0+	256 kB	32 bit	12 bit	64 MHz	17 I/O	32 KB	1.7 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 256K Flash, 52K SRAM 32-bit ARM Cortex M3 ATSAM3U4EA-CU Microchip Technology 1: £7.47 184Expected 11/03/2027	Mfr. Part No. ATSAM3U4EA-CU Mouser Part No 556-ATSAM3U4EA-CU	Microchip Technology	ARM Microcontrollers - MCU 256K Flash, 52K SRAM 32-bit ARM Cortex M3 Learn More about Microchip Technology microchip sam3u mcus	Datasheet	184Expected 11/03/2027	£7.47 £6.78 £6.15	Min.: 1 Mult.: 1	SAM3U	SMD/SMT	LFBGA-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 QFN,GREEN,IND TEMP,MRL A ATSAM4LS4AA-MU Microchip Technology 1: £4.96 416Expected 03/12/2026	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	416Expected 03/12/2026	£4.96 £4.52 £4.09	Min.: 1 Mult.: 1	SAM4L	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: £5.09 636On Order	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	636On Order On Order Ship Dates Mfr. No: ATSAM4LS4BA-AU Stock: 0 On Order: 156 Expected 09/11/2026 480 Expected 21/01/2027 Factory Lead Time: 18 Weeks	£5.09 £4.63 £4.20	Min.: 1 Mult.: 1	SAM4L	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 LQFP,GREEN,IND TEMP,MRL A ATSAM4S4CA-AUR Microchip Technology 1: £4.19 981Expected 21/12/2026	Mfr. Part No. ATSAM4S4CA-AUR Mouser Part No 556-ATSAM4S4CA-AUR	Microchip Technology	ARM Microcontrollers - MCU LQFP,GREEN,IND TEMP,MRL A Learn More about Microchip Technology atmelsam4s	Datasheet	981Expected 21/12/2026	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	+ 85 C	Reel, Cut Tape
ARM Microcontrollers - MCU Tiva C Series MCU A 595-TM4C123GH6PZTR A A 595-TM4C123GH6PZTR TM4C123GH6PZT Texas Instruments 1: £15.02 180Expected 16/11/2026	Mfr. Part No. TM4C123GH6PZT Mouser Part No 595-TM4C123GH6PZT	Texas Instruments	ARM Microcontrollers - MCU Tiva C Series MCU A 595-TM4C123GH6PZTR A A 595-TM4C123GH6PZTR Learn More about Texas Instruments ti tiva C	Datasheet	180Expected 16/11/2026	£15.02 £11.19 £10.37 £9.70	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	+ 105 C	Tray
ARM Microcontrollers - MCU PSoC5LP CY8C5888LTQ-LP097 Infineon Technologies 1: £21.96 468Expected 05/11/2026	Mfr. Part No. CY8C5888LTQ-LP097 Mouser Part No 727-CY8C5888LTQLP097	Infineon Technologies	ARM Microcontrollers - MCU PSoC5LP Learn More about Infineon Technologies cypress psoc 5lp socs	Datasheet	468Expected 05/11/2026	£21.96 £17.73 £16.09 £14.87 View £14.74 £14.73	Min.: 1 Mult.: 1		SMD/SMT	QFN-68	ARM Cortex M3	256 kB	32 bit	12 bit	80 MHz	38 I/O	64 kB	1.71 V	1.89 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Motion Control 32-bit Microcontroller based on ARM Cortex-M3 LPC1549JBD48QL NXP Semiconductors 1: £12.02 250Expected 03/05/2027	Mfr. Part No. LPC1549JBD48QL Mouser Part No 771-LPC1549JBD48QL	NXP Semiconductors	ARM Microcontrollers - MCU Motion Control 32-bit Microcontroller based on ARM Cortex-M3 Learn More about NXP Semiconductors nxp lpc1500 series	Datasheet	250Expected 03/05/2027	£12.02 £9.14 £8.76 £8.03 View £6.83 Quote	Min.: 1 Mult.: 1	LPC1500	SMD/SMT	LQFP-48	ARM Cortex M3	256 kB	32 bit	2 x 12 bit	72 MHz	30 I/O	36 kB	2.4 V	3.6 V	- 40 C	+ 105 C	Tray
ARM Microcontrollers - MCU LPC55S16JEV98 LPC55S16JEV98E NXP Semiconductors 1: £6.41 514Expected 10/12/2026	Mfr. Part No. LPC55S16JEV98E Mouser Part No 771-LPC55S16JEV98E	NXP Semiconductors	ARM Microcontrollers - MCU LPC55S16JEV98 Learn More about NXP Semiconductors nxp lpc551x s1x mcus	Datasheet	514Expected 10/12/2026	£6.41 £4.97 £4.39 £4.21 View £4.02 £3.88 £3.78 £3.74 Quote	Min.: 1 Mult.: 1	LPC55S1x	SMD/SMT	VFBGA-98	ARM Cortex M33	256 kB	32 bit	16 bit	150 MHz	64 I/O	96 kB	1.8 V	3.6 V	- 40 C	+ 105 C	Tray