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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.	Mounting Style	Package/Case	Core	Number of I/Os	Data Bus Width	ADC Resolution
ARM Microcontrollers - MCU 32BIT Cortex M3 M/D ACCESS USB MCU STM32F102CBT6 STMicroelectronics 1: £6.45 903In Stock	Mfr. Part No. STM32F102CBT6 Mouser Part No 511-STM32F102CBT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 M/D ACCESS USB MCU Learn More about STMicroelectronics stm32f1	Datasheet	903In Stock	£6.45 £4.50 £4.30 £3.73 View £3.57 £3.40 £3.31 £3.23 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-48	ARM Cortex M3	37 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32BIT Cortex M3 M3 72MHz 64pins STM32F103RBH6 STMicroelectronics 1: £5.54 4,712In Stock	Mfr. Part No. STM32F103RBH6 Mouser Part No 511-STM32F103RBH6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 M3 72MHz 64pins Learn More about STMicroelectronics stm32f1	Datasheet	4,712In Stock	£5.54 £4.43 £4.13 £3.84 View £3.78 £3.60 £3.59 Quote	Min.: 1 Mult.: 1	SMD/SMT	BGA-64	ARM Cortex M3	51 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32BIT CORTEX M3 64K Flash 20KB RAM STM32F103V8T6TR STMicroelectronics 1: £6.62 1,141In Stock	Mfr. Part No. STM32F103V8T6TR Mouser Part No 511-STM32F103V8T6TR	STMicroelectronics	ARM Microcontrollers - MCU 32BIT CORTEX M3 64K Flash 20KB RAM Learn More about STMicroelectronics stm32f1	Datasheet	1,141In Stock	Cut Tape £6.62 £5.12 £4.51 £4.33 View Reel £3.71 £4.24 £4.01 £3.71 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	LQFP-100	ARM Cortex M3	100 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 768kB STM32F207VFT6 STMicroelectronics 1: £13.04 514In Stock	Mfr. Part No. STM32F207VFT6 Mouser Part No 511-STM32F207VFT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 768kB Learn More about STMicroelectronics stm32f2	Datasheet	514In Stock	£13.04 £10.25 £9.46 £8.74 View £8.58 £8.06 £7.96	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	16 I/O	32 bit	12 bit
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 512 Kbytes of Flash 32 MHz CPU, USB, 2xOp-amp STM32L152RET6 STMicroelectronics 1: £6.45 974In Stock	Mfr. Part No. STM32L152RET6 Mouser Part No 511-STM32L152RET6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 512 Kbytes of Flash 32 MHz CPU, USB, 2xOp-amp Learn More about STMicroelectronics stm32l1	Datasheet	974In Stock	£6.45 £5.45 £5.11 £4.91	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	51 I/O	32 bit	12 bit
ARM Microcontrollers - MCU Ultra-low-power Cortex-M3 MCU 128 Kbytes of Flash , RTC, LCD, USB STM32L152VBT6A STMicroelectronics 1: £6.91 727In Stock	Mfr. Part No. STM32L152VBT6A Mouser Part No 511-STM32L152VBT6A	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power Cortex-M3 MCU 128 Kbytes of Flash , RTC, LCD, USB Learn More about STMicroelectronics stm32l1	Datasheet	727In Stock	£6.91 £4.98 £4.57 £4.44 View £4.31 £4.12 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	83 I/O	32 bit	12 bit
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	SMD/SMT	TQFP-100	ARM Cortex M3	62 I/O	32 bit	12 bit
ARM Microcontrollers - MCU High Performance 32-bit Microcontroller (MCU) based on ARM Cortex-M3 Core LPC1857JBD208E NXP Semiconductors 1: £16.06 763In 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	763In Stock	£16.06 £14.47 £12.61 £12.04 View £11.89 £11.61	Min.: 1 Mult.: 1	SMD/SMT	LQFP-208	ARM Cortex M3	142 I/O	32 bit	2 x 10 bit
ARM Microcontrollers - MCU ARM 32Bit Value Line 100-Pin 32kB Flash STM32F100VCT6B STMicroelectronics 1: £5.62 667In Stock	Mfr. Part No. STM32F100VCT6B Mouser Part No 511-STM32F100VCT6B	STMicroelectronics	ARM Microcontrollers - MCU ARM 32Bit Value Line 100-Pin 32kB Flash Learn More about STMicroelectronics stm32f1	Datasheet	667In Stock	£5.62 £4.00 £3.81 £3.58 View £3.43 £3.35	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3		32 bit	12 bit
ARM Microcontrollers - MCU ARM 32Bit Value Line 100-Pin 512kB Flash STM32F100VET6B STMicroelectronics 1: £8.30 567In Stock	Mfr. Part No. STM32F100VET6B Mouser Part No 511-STM32F100VET6B	STMicroelectronics	ARM Microcontrollers - MCU ARM 32Bit Value Line 100-Pin 512kB Flash Learn More about STMicroelectronics stm32f1	Datasheet	567In Stock	£8.30 £6.03 £5.54 £5.14 View £5.12 £5.01	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3		32 bit	12 bit
ARM Microcontrollers - MCU 32BIT Cortex M3 L/D Performance LINE STM32F103C6T7A STMicroelectronics 1: £4.47 964In Stock	Mfr. Part No. STM32F103C6T7A Mouser Part No 511-STM32F103C6T7A	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 L/D Performance LINE Learn More about STMicroelectronics stm32f1	Datasheet	964In Stock	£4.47 £3.47 £3.27 £3.04 View £2.93 £2.92 £2.82 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-48	ARM Cortex M3	37 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32BIT Cortex M3 L/D PERF LN 64 PIN 32KB STM32F103R6T6A STMicroelectronics 1: £5.33 1,001In Stock	Mfr. Part No. STM32F103R6T6A Mouser Part No 511-STM32F103R6T6A	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 L/D PERF LN 64 PIN 32KB Learn More about STMicroelectronics stm32f1	Datasheet	1,001In Stock	£5.33 £4.09 £3.60 £3.49 View £3.42 £3.21 £3.10 £3.02 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	51 I/O	32 bit	12 bit
ARM Microcontrollers - MCU XL-Density Access Line 32-Bit 1G Flash STM32F103RGT6 STMicroelectronics 1: £11.93 891In Stock 2,880On Order	Mfr. Part No. STM32F103RGT6 Mouser Part No 511-STM32F103RGT6	STMicroelectronics	ARM Microcontrollers - MCU XL-Density Access Line 32-Bit 1G Flash Learn More about STMicroelectronics stm32f1	Datasheet	891In Stock 2,880On Order On Order Ship Dates Mfr. No: STM32F103RGT6 Stock: 891 Can Dispatch Immediately On Order: 960 Expected 02/11/2026 1,920 Expected 25/01/2027 Factory Lead Time: 52 Weeks	£11.93 £9.38 £8.46 £7.91 View £7.83 £7.57 £7.56	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	112 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32BIT Cortex M3 Performance LINE STM32F103VEH6 STMicroelectronics 1: £9.18 339In Stock	Mfr. Part No. STM32F103VEH6 Mouser Part No 511-STM32F103VEH6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 Performance LINE Learn More about STMicroelectronics stm32f1	Datasheet	339In Stock	£9.18 £7.42 £6.84 £6.29	Min.: 1 Mult.: 1	SMD/SMT	BGA-100	ARM Cortex M3	80 I/O	32 bit	12 bit
ARM Microcontrollers - MCU High-performance Arm Cortex-M3 MCU 512 Kbytes of Flash , 120 MHz CPU, ART Accel STM32F205VET7 STMicroelectronics 1: £11.51 511In Stock	Mfr. Part No. STM32F205VET7 Mouser Part No 511-STM32F205VET7	STMicroelectronics	ARM Microcontrollers - MCU High-performance Arm Cortex-M3 MCU 512 Kbytes of Flash , 120 MHz CPU, ART Accel Learn More about STMicroelectronics stm32f2	Datasheet	511In Stock	£11.51 £8.48 £7.83 £7.30 £7.14	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	82 I/O	32 bit	12 bit
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 32 Kbytes of Flash , 32 MHz CPU, USB STM32L151C6U6A STMicroelectronics 1: £5.09 1,498In Stock	Mfr. Part No. STM32L151C6U6A Mouser Part No 511-STM32L151C6U6A	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	1,498In Stock	£5.09 £3.50 £3.26 £2.87 View £2.72 £2.44 £2.14 £2.13	Min.: 1 Mult.: 1	SMD/SMT	UFQPFN-48	ARM Cortex M3	37 I/O	32 bit	12 bit
ARM Microcontrollers - MCU ARM Cortex M3 384kB Ultralow 10Ports USB STM32L151RDT6TR STMicroelectronics 1: £7.53 905In Stock	Mfr. Part No. STM32L151RDT6TR Mouser Part No 511-STM32L151RDT6TR	STMicroelectronics	ARM Microcontrollers - MCU ARM Cortex M3 384kB Ultralow 10Ports USB Learn More about STMicroelectronics stm32l1	Datasheet	905In Stock	Cut Tape £7.53 £5.85 £5.18 £4.97 £4.71 Reel £4.50 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	LQFP-64	ARM Cortex M3	51 I/O	32 bit	12 bit
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	SMD/SMT	TQFP-100	ARM Cortex M3	72 I/O	32 bit	12 bit
ARM Microcontrollers - MCU High Performance 32-bit Microcontroller based on ARM Cortex-M3 LPC1823JET100E NXP Semiconductors 1: £14.81 520In Stock	Mfr. Part No. LPC1823JET100E Mouser Part No 771-LPC1823JET100E	NXP Semiconductors	ARM Microcontrollers - MCU High Performance 32-bit Microcontroller based on ARM Cortex-M3 Learn More about NXP Semiconductors nxp lpc1830 lpc1850 lpc1857 mcus	Datasheet	520In Stock	£14.81 £11.80 £10.59 £10.21 View £10.08 £9.73 £9.58 Quote	Min.: 1 Mult.: 1	SMD/SMT	TFBGA-100	ARM Cortex M3	49 I/O	32 bit	2 x 10 bit
ARM Microcontrollers - MCU 32-bit ARM Cortex-M3 MCU; 1 MB flash and 136 kB SRAM; Ethernet, two High-speed USB, EMC, AES engine LPC18S37JET100E NXP Semiconductors 1: £15.91 259In Stock	Mfr. Part No. LPC18S37JET100E Mouser Part No 771-LPC18S37JET100E	NXP Semiconductors	ARM Microcontrollers - MCU 32-bit ARM Cortex-M3 MCU; 1 MB flash and 136 kB SRAM; Ethernet, two High-speed USB, EMC, AES engine Learn More about NXP Semiconductors nxp lpc18sx mcu	Datasheet	259In Stock	£15.91 £12.70 £11.42 £11.40 View £10.48 £10.12 £9.95 Quote	Min.: 1 Mult.: 1	SMD/SMT	TFBGA-100	ARM Cortex M3	49 I/O	32 bit	10 bit
ARM Microcontrollers - MCU 32-Bit Arm Cortex M3 128kb LCD Ultralow STM32L152CBT6 STMicroelectronics 1: £6.51 768In Stock NRND	Mfr. Part No. STM32L152CBT6 Mouser Part No 511-STM32L152CBT6 NRND	STMicroelectronics	ARM Microcontrollers - MCU 32-Bit Arm Cortex M3 128kb LCD Ultralow Learn More about STMicroelectronics stm32l1	Datasheet	768In Stock	£6.51 £5.04 £4.44 £4.26 View £4.06 £3.95 £3.69 £3.59 Quote	Min.: 1 Mult.: 1	SMD/SMT		ARM Cortex M3	37 I/O	32 bit	12 bit
ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB EFM32LG230F256G-F-QFN64R Silicon Labs 1: £8.52 1,937In Stock	Mfr. Part No. EFM32LG230F256G-F-QFN64R Mouser Part No 634-32LG230F256GFQFR	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	1,937In Stock	Cut Tape £8.52 £6.65 £6.18 £5.67 £5.44 Reel £4.91	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	QFN-64	ARM Cortex M3	56 I/O	32 bit	12 bit
ARM Microcontrollers - MCU Tiny Gecko MCU IC EFM32TG840F32-D-QFN64 Silicon Labs 1: £5.02 626In Stock	Mfr. Part No. EFM32TG840F32-D-QFN64 Mouser Part No 634-EFM32TG840F32-D	Silicon Labs	ARM Microcontrollers - MCU Tiny Gecko MCU IC Learn More about Silicon Labs energymicroefm32tg	Datasheet	626In Stock	£5.02 £3.97 £3.56 £3.33 View £3.17 £3.07 £3.06 £3.01	Min.: 1 Mult.: 1	SMD/SMT	QFN-64	ARM Cortex M3	56 I/O	32 bit	12 bit
ARM Microcontrollers - MCU TFBGA, Grn, IT MRL B ATSAM3U1CB-CU Microchip Technology 1: £4.70 261In Stock	Mfr. Part No. ATSAM3U1CB-CU Mouser Part No 556-ATSAM3U1CB-CU	Microchip Technology	ARM Microcontrollers - MCU TFBGA, Grn, IT MRL B Learn More about Microchip Technology microchip sam3u mcus	Datasheet	261In Stock	£4.70 £4.26 £4.05 £4.04	Min.: 1 Mult.: 1	SMD/SMT	TFBGA-100	ARM Cortex M3	57 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32B ARM Cortex-M3 256Kb Flsh 32MHz CPU STM32L151VCT6 STMicroelectronics 1: £5.65 1,510In Stock NRND	Mfr. Part No. STM32L151VCT6 Mouser Part No 511-STM32L151VCT6 NRND	STMicroelectronics	ARM Microcontrollers - MCU 32B ARM Cortex-M3 256Kb Flsh 32MHz CPU Learn More about STMicroelectronics stm32l1	Datasheet	1,510In Stock	£5.65 £4.60 £4.27 £4.18 View £4.02 £3.94	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	83 I/O	32 bit	12 bit