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ARM Cortex M3 Core Embedded Processors & Controllers

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Core = ARM Cortex M3

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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.	Product Type	Mounting Style	Package/Case	Core	Data Bus Width	Maximum Clock Frequency	Program Memory Size	Data RAM Size	ADC Resolution	Number of I/Os	Minimum Operating Temperature	Maximum Operating Temperature	Packaging
ARM Microcontrollers - MCU 256kB flash, 64kB SRAM, USB, LQFP100 package LPC1765FBD100K NXP Semiconductors 1: £10.83 5,800In Stock	Mfr. Part No. LPC1765FBD100K Mouser Part No 771-LPC1765FBD100K	NXP Semiconductors	ARM Microcontrollers - MCU 256kB flash, 64kB SRAM, USB, LQFP100 package Learn More about NXP Semiconductors nxp_lpc17xx	Datasheet	5,800In Stock	£10.83 £8.68 £8.07 £7.76 View £7.29 £7.11 Quote	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	LQFP-100	ARM Cortex M3	32 bit	100 MHz	256 kB	64 kB	12 bit	70 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 512kB flash, 64kB SRAM, Ethernet, USB, TFBGA100 package LPC1768FET100,551 NXP Semiconductors 1: £13.49 6,533In Stock	Mfr. Part No. LPC1768FET100,551 Mouser Part No 771-LPC1768FET100551	NXP Semiconductors	ARM Microcontrollers - MCU 512kB flash, 64kB SRAM, Ethernet, USB, TFBGA100 package Learn More about NXP Semiconductors nxp_lpc17xx	Datasheet	6,533In Stock	£13.49 £10.71 £9.60 £9.25 View £8.88 £8.49 £8.18 Quote	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	TFBGA-100	ARM Cortex M3	32 bit	100 MHz	512 kB	64 kB	12 bit	70 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU High Performance 32-bit Microcontroller (MCU) based on ARM Cortex-M3 Core LPC1857JBD208E NXP Semiconductors 1: £16.06 968In Stock	Mfr. Part No. LPC1857JBD208E Mouser Part No 771-LPC1857JBD208E	NXP Semiconductors	ARM Microcontrollers - MCU High Performance 32-bit Microcontroller (MCU) based on ARM Cortex-M3 Core Learn More about NXP Semiconductors nxp lpc1830 lpc1850 lpc1857 mcus	Datasheet	968In Stock	£16.06 £14.47 £12.61 £12.04 View £11.89 £11.61	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	LQFP-208	ARM Cortex M3	32 bit	180 MHz	1 MB	136 kB	2 x 10 bit	142 I/O	- 40 C	+ 105 C	Tray
ARM Microcontrollers - MCU 32BIT Cortex M3 512B Flash 100pin STM32F103VET6 STMicroelectronics 1: £8.33 25,704In Stock	Mfr. Part No. STM32F103VET6 Mouser Part No 511-STM32F103VET6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 512B Flash 100pin Learn More about STMicroelectronics stm32f1	Datasheet	25,704In Stock	£8.33 £6.93 £6.15 £5.88 View £5.79 £5.63 £5.55 Quote	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	LQFP-100	ARM Cortex M3	32 bit	72 MHz	512 kB	64 kB	12 bit	80 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Mainstream ARM M3 1Mb 72 MHz USB CAN STM32F103VGT6 STMicroelectronics 1: £9.95 11,010In Stock	Mfr. Part No. STM32F103VGT6 Mouser Part No 511-STM32F103VGT6	STMicroelectronics	ARM Microcontrollers - MCU Mainstream ARM M3 1Mb 72 MHz USB CAN Learn More about STMicroelectronics stm32f1	Datasheet	11,010In Stock	£9.95 £8.07 £7.60 £7.36 View £7.09 £6.99 £6.56	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	LQFP-100	ARM Cortex M3	32 bit	72 MHz	1 MB	96 kB	12 bit	112 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT Cortex M3 512KB Perform Line STM32F103ZEH7 STMicroelectronics 1: £12.17 2,525In Stock	Mfr. Part No. STM32F103ZEH7 Mouser Part No 511-STM32F103ZEH7	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 512KB Perform Line Learn More about STMicroelectronics stm32f1	Datasheet	2,525In Stock	£12.17 £9.58 £8.71 £8.21 View £7.94 £7.73 £6.99 Quote	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	BGA-144	ARM Cortex M3	32 bit	72 MHz	512 kB	64 kB	12 bit	112 I/O	- 40 C	+ 105 C	Tray
ARM Microcontrollers - MCU 128k Flash, 16k RAM, AES EFM32G222F128G-E-QFP48R Silicon Labs 1: £5.81 3,414In Stock	Mfr. Part No. EFM32G222F128G-E-QFP48R Mouser Part No 634-32G222128GEFP48R	Silicon Labs	ARM Microcontrollers - MCU 128k Flash, 16k RAM, AES	Datasheet	3,414In Stock	Cut Tape £5.81 £4.48 £4.13 £3.78 Reel £3.39 View £3.50 £3.22	Min.: 1 Mult.: 1 : 1,000	ARM Microcontrollers - MCU	SMD/SMT	TQFP-48	ARM Cortex M3	32 bit	32 MHz	128 kB	16 kB	12 bit	37 I/O	- 40 C	+ 85 C	Reel, Cut Tape
ARM Microcontrollers - MCU 32BIT Cortex M3 128K FLASH 20KB RAM STM32F103RBT6 STMicroelectronics 1: £6.96 13,785In Stock	Mfr. Part No. STM32F103RBT6 Mouser Part No 511-STM32F103RBT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 128K FLASH 20KB RAM Learn More about STMicroelectronics stm32f1	Datasheet	13,785In Stock	£6.96 £5.34 £4.77 £4.55 £4.29	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	72 MHz	128 kB	20 kB	12 bit	64 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Mainstream Performance line, Arm Cortex-M3 MCU 1 Mbyte of Flash 72 MHz CPU, moto STM32F103RGT6TR STMicroelectronics 1: £11.80 2,000In Stock 2,000Expected 28/11/2026	Mfr. Part No. STM32F103RGT6TR Mouser Part No 511-STM32F103RGT6TR	STMicroelectronics	ARM Microcontrollers - MCU Mainstream Performance line, Arm Cortex-M3 MCU 1 Mbyte of Flash 72 MHz CPU, moto Learn More about STMicroelectronics stm32f1	Datasheet	2,000In Stock 2,000Expected 28/11/2026	Cut Tape £11.80 £9.26 £8.44 £7.94 View Reel £6.63 £7.79 £7.33 £6.63 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	ARM Microcontrollers - MCU	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	72 MHz	1 MB	96 kB	12 bit	112 I/O	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32-Bit Cortex 64Kb Performance Line STM32F103VET6TR STMicroelectronics 1: £8.28 11,997In Stock	Mfr. Part No. STM32F103VET6TR Mouser Part No 511-STM32F103VET6TR	STMicroelectronics	ARM Microcontrollers - MCU 32-Bit Cortex 64Kb Performance Line Learn More about STMicroelectronics stm32f1	Datasheet	11,997In Stock	Cut Tape £8.28 £6.98 £6.48 £6.23 View Reel £5.33 £6.15 £5.93 £5.33 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	ARM Microcontrollers - MCU	SMD/SMT	LQFP-100	ARM Cortex M3	32 bit	72 MHz	512 kB	64 kB	12 bit	80 I/O	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 1024kB STM32F205RGT6 STMicroelectronics 1: £12.07 2,592In Stock	Mfr. Part No. STM32F205RGT6 Mouser Part No 511-STM32F205RGT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 1024kB Learn More about STMicroelectronics stm32f2	Datasheet	2,592In Stock	£12.07 £9.52 £8.50 £8.01 View £7.97 £7.60 £7.53	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	120 MHz	1 MB	128 kB	12 bit	51 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 32 Kbytes of Flash , 32 MHz CPU, USB STM32L151C6T6A STMicroelectronics 1: £4.10 12,803In Stock	Mfr. Part No. STM32L151C6T6A Mouser Part No 511-STM32L151C6T6A	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 32 Kbytes of Flash , 32 MHz CPU, USB Learn More about STMicroelectronics stm32l1	Datasheet	12,803In Stock	£4.10 £3.13 £2.73 £2.61 View £2.49 £2.40 £2.11 £1.96 £1.90	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	LQFP-48	ARM Cortex M3	32 bit	32 MHz	32 kB	10 kB	12 bit	37 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 32-Bit Arm Cortex M3 128kb UltralowPower STM32L151CBT6 STMicroelectronics 1: £6.24 10,299In Stock NRND	Mfr. Part No. STM32L151CBT6 Mouser Part No 511-STM32L151CBT6 NRND	STMicroelectronics	ARM Microcontrollers - MCU 32-Bit Arm Cortex M3 128kb UltralowPower Learn More about STMicroelectronics stm32l1	Datasheet	10,299In Stock	£6.24 £4.82 £4.25 £4.07 View £3.88 £3.77 £3.43 £3.35 Quote	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT		ARM Cortex M3	32 bit	32 MHz	128 kB	16 kB	12 bit	37 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU BGA100,GREEN IND TEMP, MRLA ATSAM3X8CA-CU Microchip Technology 1: £8.95 256In Stock	Mfr. Part No. ATSAM3X8CA-CU Mouser Part No 556-ATSAM3X8CA-CU	Microchip Technology	ARM Microcontrollers - MCU BGA100,GREEN IND TEMP, MRLA Learn More about Microchip Technology microchip sam3x mcu	Datasheet	256In Stock	£8.95 £8.13 £7.37 £7.36	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	LFBGA-100	ARM Cortex M3	32 bit	84 MHz	512 kB	96 kB	12 bit	63 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 128k Flash, 16k RAM, AES EFM32G232F128G-E-QFP64R Silicon Labs 1: £5.91 549In Stock	Mfr. Part No. EFM32G232F128G-E-QFP64R Mouser Part No 634-32G232128GEFP64R	Silicon Labs	ARM Microcontrollers - MCU 128k Flash, 16k RAM, AES	Datasheet	549In Stock	Cut Tape £5.91 £4.66 £4.29 £3.94 £3.83 Reel £3.35	Min.: 1 Mult.: 1 : 1,000	ARM Microcontrollers - MCU	SMD/SMT	TQFP-64	ARM Cortex M3	32 bit	32 MHz	128 kB	16 kB	12 bit	53 I/O	- 40 C	+ 85 C	Reel, Cut Tape
ARM Microcontrollers - MCU 512k Flash, 128k RAM, USB, AES EFM32GG380F512G-E-QFP100R Silicon Labs 1: £12.58 2,100In Stock	Mfr. Part No. EFM32GG380F512G-E-QFP100R Mouser Part No 634-32GG380F512-E-T	Silicon Labs	ARM Microcontrollers - MCU 512k Flash, 128k RAM, USB, AES Learn More about Silicon Labs energymicro efm32giant	Datasheet	2,100In Stock	Cut Tape £12.58 £10.00 £9.11 £8.53 View Reel £7.38 £8.47 £7.97 £7.38	Min.: 1 Mult.: 1 : 1,000	ARM Microcontrollers - MCU	SMD/SMT	LQFP-100	ARM Cortex M3	32 bit	48 MHz	512 kB	128 kB	12 bit	81 I/O	- 40 C	+ 85 C	Reel, Cut Tape
ARM Microcontrollers - MCU PSOC 5LP ANALOG LITE, 256K FLASH CY8C5468LTI-LP026 Infineon Technologies 1: £10.94 1,371In Stock	Mfr. Part No. CY8C5468LTI-LP026 Mouser Part No 727-CY8C5468LTILP026	Infineon Technologies	ARM Microcontrollers - MCU PSOC 5LP ANALOG LITE, 256K FLASH Learn More about Infineon Technologies cypress psoc5lp	Datasheet	1,371In Stock	£10.94 £8.62 £7.70 £7.40 View £7.09 £6.81 £6.58	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	QFN-68	ARM Cortex M3	32 bit	67 MHz	256 kB	64 kB	12 bit	48 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU PSOC 5LP PERFO ANLOG 67MHZ, 64K CY8C5666AXI-LP004 Infineon Technologies 1: £14.06 623In Stock	Mfr. Part No. CY8C5666AXI-LP004 Mouser Part No 727-CY8C5666AXILP004	Infineon Technologies	ARM Microcontrollers - MCU PSOC 5LP PERFO ANLOG 67MHZ, 64K Learn More about Infineon Technologies cypress psoc5lp	Datasheet	623In Stock	£14.06 £11.17 £9.71 £9.41 View £9.39 £8.56 £8.54 Quote	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	TQFP-100	ARM Cortex M3	32 bit	67 MHz	64 kB	16 kB	12 bit	72 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Tiny Gecko MCU IC EFM32TG210F32-D-QFN32 Silicon Labs 1: £4.05 1,674In Stock	Mfr. Part No. EFM32TG210F32-D-QFN32 Mouser Part No 634-EFM32TG210F32-D	Silicon Labs	ARM Microcontrollers - MCU Tiny Gecko MCU IC Learn More about Silicon Labs energymicroefm32tg	Datasheet	1,674In Stock	£4.05 £3.19 £2.85 £2.65 View £2.45 £2.38	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	QFN-32	ARM Cortex M3	32 bit	32 MHz	32 kB	4 kB	12 bit	24 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU PSOC 5LP PERFO ANLOG 67MHZ,256K CY8C5668AXI-LP013 Infineon Technologies 1: £18.56 123In Stock	Mfr. Part No. CY8C5668AXI-LP013 Mouser Part No 727-CY8C5668AXILP013	Infineon Technologies	ARM Microcontrollers - MCU PSOC 5LP PERFO ANLOG 67MHZ,256K Learn More about Infineon Technologies cypress psoc5lp	Datasheet	123In Stock	£18.56 £15.83 £15.70 £15.69	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	TQFP-100	ARM Cortex M3	32 bit	67 MHz	256 kB	64 kB	12 bit	72 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU LQFP, Grn, IT, MRL B ATSAM3U1CB-AU Microchip Technology 1: £3.30 348In Stock	Mfr. Part No. ATSAM3U1CB-AU Mouser Part No 556-ATSAM3U1CB-AU	Microchip Technology	ARM Microcontrollers - MCU LQFP, Grn, IT, MRL B Learn More about Microchip Technology microchip sam3u mcus	Datasheet	348In Stock	£3.30 £3.00 £2.99 £2.83	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	LQFP-100	ARM Cortex M3	32 bit	96 MHz	64 kB	20 kB	12 bit	57 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB EFM32LG842F256G-F-QFP64R Silicon Labs 1: £8.87 3,787In Stock	Mfr. Part No. EFM32LG842F256G-F-QFP64R Mouser Part No 634-32LG842256GFQFPR	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	3,787In Stock	Cut Tape £8.87 £6.95 £6.46 £5.93 Reel £5.40 View £5.88 £5.53 £5.12	Min.: 1 Mult.: 1 : 1,000	ARM Microcontrollers - MCU	SMD/SMT	TQFP-64	ARM Cortex M3	32 bit	48 MHz	256 kB	32 kB	12 bit	53 I/O	- 40 C	+ 85 C	Reel, Cut Tape
ARM Microcontrollers - MCU 5.50 V, PSoC 5 CapSense Plus CY8C5667AXI-LP006 Infineon Technologies 1: £15.53 1,775In Stock	Mfr. Part No. CY8C5667AXI-LP006 Mouser Part No 727-CY8C5667AXILP006	Infineon Technologies	ARM Microcontrollers - MCU 5.50 V, PSoC 5 CapSense Plus Learn More about Infineon Technologies cypress psoc5lp	Datasheet	1,775In Stock	£15.53 £12.38 £10.78 £10.41 View £9.33 £9.29 £9.28 Quote	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	TQFP-100	ARM Cortex M3	32 bit	67 MHz	128 kB	32 kB	12 bit	62 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU QFP100,GREEN IND TEMP, MRL A ATSAM3A4CA-AU Microchip Technology 1: £8.12 334In Stock	Mfr. Part No. ATSAM3A4CA-AU Mouser Part No 556-ATSAM3A4CA-AU	Microchip Technology	ARM Microcontrollers - MCU QFP100,GREEN IND TEMP, MRL A Learn More about Microchip Technology microchip sam3a mcu	Datasheet	334In Stock	£8.12 £7.91 £7.43 £7.41 £6.95	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	LQFP-100	ARM Cortex M3	32 bit	84 MHz	256 kB	64 kB	12 bit	63 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU LQFP,Green,IND TEMP,MRL B ATSAM3S1BB-AU Microchip Technology 1: £2.89 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. ATSAM3S1BB-AU Mouser Part No 556-ATSAM3S1BB-AU	Microchip Technology	ARM Microcontrollers - MCU LQFP,Green,IND TEMP,MRL B Learn More about Microchip Technology microchip sam3s mcu	Datasheet	Non-Stocked Lead-Time 12 Weeks	£2.89 £2.65 £2.39	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	QFP-64	ARM Cortex M3	32 bit	64 MHz	64 kB	16 kB	12 bit	47 I/O	- 40 C	+ 85 C	Tray