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ARM Cortex M3 Core 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 32-Bit ARM Cortex 128kb Low Power MCU STM32L151RBT6TR STMicroelectronics 1: £7.52 28In Stock NRND	Mfr. Part No. STM32L151RBT6TR Mouser Part No 511-STM32L151RBT6TR NRND	STMicroelectronics	ARM Microcontrollers - MCU 32-Bit ARM Cortex 128kb Low Power MCU Learn More about STMicroelectronics stm32l1	Datasheet	28In Stock	Cut Tape £7.52 £5.82 £5.35 £4.85 View Reel £4.22 £4.71 £4.32 £4.22 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	STM32L151RB			ARM Cortex M3		32 bit					1.65 V	3.6 V			Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU STELLARIS ARM S817 LM3S817-IQN50-C2 Texas Instruments 1: £14.19 86In Stock NRND	Mfr. Part No. LM3S817-IQN50-C2 Mouser Part No 868-LM3S817-IQN50 NRND	Texas Instruments	ARM Microcontrollers - MCU STELLARIS ARM S817 Learn More about Texas Instruments ti processors solutions	Datasheet	86In Stock	£14.19 £11.29 £10.12 £9.76 View £9.23 £8.83 £8.73 Quote	Min.: 1 Mult.: 1	LM3S817	SMD/SMT	LQFP-48	ARM Cortex M3	64 kB	32 bit	10 bit	50 MHz	30 I/O	8 kB	3 V	3.6 V	- 40 C	+ 85 C	Bulk
ARM Microcontrollers - MCU LQFP,Grn, IT, MRL A ATSAM3S8BA-AU Microchip Technology 1: £5.82 27In Stock	Mfr. Part No. ATSAM3S8BA-AU Mouser Part No 556-ATSAM3S8BA-AU	Microchip Technology	ARM Microcontrollers - MCU LQFP,Grn, IT, MRL A Learn More about Microchip Technology microchip sam3s mcu	Datasheet	27In Stock	£5.82 £5.28 £4.78	Min.: 1 Mult.: 1	SAM3S	SMD/SMT	QFP-64	ARM Cortex M3	512 kB	32 bit	12 bit	64 MHz	47 I/O	64 kB	1.62 V	1.9 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 128K Flash, 36K SRAM 32-bit ARM Cortex M ATSAM3U2EA-CU Microchip Technology 1: £5.96 4In Stock	Mfr. Part No. ATSAM3U2EA-CU Mouser Part No 556-ATSAM3U2EA-CU	Microchip Technology	ARM Microcontrollers - MCU 128K Flash, 36K SRAM 32-bit ARM Cortex M Learn More about Microchip Technology microchip sam3u mcus	Datasheet	4In Stock	£5.96 £5.42 £4.91	Min.: 1 Mult.: 1	SAM3U	SMD/SMT	LFBGA-144	ARM Cortex M3	128 kB	32 bit	12 bit	96 MHz	96 I/O	36 kB	1.62 V	1.95 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 1024k Flash, 128k RAM, AES EFM32GG290F1024G-E-BGA112 Silicon Labs 1: £14.75 56In Stock	Mfr. Part No. EFM32GG290F1024G-E-BGA112 Mouser Part No 634-32GG290F1024-E	Silicon Labs	ARM Microcontrollers - MCU 1024k Flash, 128k RAM, AES Learn More about Silicon Labs energymicro efm32giant	Datasheet	56In Stock	£14.75 £11.69 £10.93 £10.09 View £9.62 £9.45	Min.: 1 Mult.: 1	EFM32GG	SMD/SMT	BGA-112	ARM Cortex M3	1.02 MB	32 bit	12 bit	48 MHz	90 I/O	128 kB	1.98 V	3.8 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 512k Flash, 128k RAM, AES EFM32GG290F512G-E-BGA112 Silicon Labs 1: £12.25 4In Stock	Mfr. Part No. EFM32GG290F512G-E-BGA112 Mouser Part No 634-32GG290F512-E	Silicon Labs	ARM Microcontrollers - MCU 512k Flash, 128k RAM, AES Learn More about Silicon Labs energymicro efm32giant	Datasheet	4In Stock	£12.25 £9.59 £8.93 £8.20 View £8.12 £7.64 £7.47 Quote	Min.: 1 Mult.: 1	EFM32GG	SMD/SMT	BGA-112	ARM Cortex M3	512 kB	32 bit	12 bit	48 MHz	90 I/O	128 kB	1.98 V	3.8 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU ARM Cortex-M3 32-bit 40 MHz 128 kB MCU EFM32JG1B100F128GM32-C0 Silicon Labs 1: £3.59 76In Stock	Mfr. Part No. EFM32JG1B100F128GM32-C0 Mouser Part No 634-JG1B100F12832C0	Silicon Labs	ARM Microcontrollers - MCU ARM Cortex-M3 32-bit 40 MHz 128 kB MCU Learn More about Silicon Labs silabs efm32 jade gecko mcu	Datasheet	76In Stock	£3.59 £2.71 £2.49 £2.23 View £2.12 £2.11 £1.98 £1.94	Min.: 1 Mult.: 1	EFM32JG	SMD/SMT	QFN-32	ARM Cortex M3	128 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 512kB flash, 64kB SRAM, Ethernet, USB, LQFP100 package LPC1769FBD100/P1K NXP Semiconductors 1: £15.92 139In Stock Factory Special Order	Mfr. Part No. LPC1769FBD100/P1K Mouser Part No 771-LPC1769FBD100P1K Factory Special Order	NXP Semiconductors	ARM Microcontrollers - MCU 512kB flash, 64kB SRAM, Ethernet, USB, LQFP100 package	Datasheet	139In Stock	£15.92 £12.72 £11.44 £11.03 View £10.40 £10.39	Min.: 1 Mult.: 1	LPC1700	SMD/SMT	LQFP-100	ARM Cortex M3	512 kB	32 bit	12 bit	120 MHz	70 I/O	64 kB	2.4 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU LowPwr Cortex M3w/256kEmbedded Flash/ADC ADUCM3029BCPZ Analog Devices 1: £24.14 1In Stock	Mfr. Part No. ADUCM3029BCPZ Mouser Part No 584-ADUCM3029BCPZ	Analog Devices	ARM Microcontrollers - MCU LowPwr Cortex M3w/256kEmbedded Flash/ADC Learn More about Analog Devices adi aducm3027 aducm3029 ulp mcu	Datasheet	1In Stock	£24.14 £20.78 £17.29 £16.42 View £16.12 £15.90 Quote	Min.: 1 Mult.: 1	ADUCM3029	SMD/SMT	LFCSP-64	ARM Cortex M3	256 kB	32 bit	12 bit	26 MHz	44 I/O	64 kB	1.74 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 1024k Flash, 128k RAM, USB, AES EFM32GG330F1024G-E-QFN64 Silicon Labs 1: £13.76 3In Stock NRND	Mfr. Part No. EFM32GG330F1024G-E-QFN64 Mouser Part No 634-32GG330F1024-E NRND	Silicon Labs	ARM Microcontrollers - MCU 1024k Flash, 128k RAM, USB, AES Learn More about Silicon Labs energymicro efm32giant	Datasheet	3In Stock	£13.76 £10.90 £10.19 £9.40 View £8.97 £8.81	Min.: 1 Mult.: 1	EFM32GG	SMD/SMT	QFN-64	ARM Cortex M3	1.02 MB	32 bit	12 bit	48 MHz	52 I/O	128 kB	1.98 V	3.8 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 32-Bit ARM Cortex High Density 384kb STM32F103VDT7 STMicroelectronics 1: £10.05 30In Stock	Mfr. Part No. STM32F103VDT7 Mouser Part No 511-STM32F103VDT7	STMicroelectronics	ARM Microcontrollers - MCU 32-Bit ARM Cortex High Density 384kb Learn More about STMicroelectronics stm32f1	Datasheet	30In Stock	£10.05 £8.16 £7.63 £6.57 View £6.29 £5.91 £5.88	Min.: 1 Mult.: 1	STM32F103VD	SMD/SMT	LQFP-100	ARM Cortex M3	384 kB	32 bit	12 bit	72 MHz		64 kB	2 V	3.6 V	- 40 C	+ 105 C	Tray
ARM Microcontrollers - MCU STM32F103 Perf Line M3 768kB 72 MHz MCU STM32F103ZFH6TR STMicroelectronics 1: £12.73 62In Stock	Mfr. Part No. STM32F103ZFH6TR Mouser Part No 511-STM32F103ZFH6TR	STMicroelectronics	ARM Microcontrollers - MCU STM32F103 Perf Line M3 768kB 72 MHz MCU Learn More about STMicroelectronics stm32f1	Datasheet	62In Stock	Cut Tape £12.73 £9.97 £9.24 £8.53 View Reel £7.31 £8.23 £7.94 £7.32 £7.31 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,500	STM32F103ZF	SMD/SMT	BGA-144	ARM Cortex M3	768 kB	32 bit	12 bit	72 MHz	112 I/O	96 kB	2 V	3.6 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 512 Kbytes of Flash 32 MHz CPU, LCD, USB, 2xOp STM32L162VET6 STMicroelectronics 1: £9.94 53In Stock	Mfr. Part No. STM32L162VET6 Mouser Part No 511-STM32L162VET6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 512 Kbytes of Flash 32 MHz CPU, LCD, USB, 2xOp Learn More about STMicroelectronics stm32l1	Datasheet	53In Stock	£9.94 £7.79 £7.21 £6.66 View £6.43 £5.86 £5.77 Quote	Min.: 1 Mult.: 1	STM32L162VE	SMD/SMT	LQFP-100	ARM Cortex M3	512 kB	32 bit	12 bit	32 MHz	83 I/O	80 kB	1.8 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU LQFP, Grn, IT, MRL a ATSAM3N0BA-AU Microchip Technology 1: £2.70 5In Stock	Mfr. Part No. ATSAM3N0BA-AU Mouser Part No 556-ATSAM3N0BA-AU	Microchip Technology	ARM Microcontrollers - MCU LQFP, Grn, IT, MRL a Learn More about Microchip Technology microchip sam3n mcu	Datasheet	5In Stock	£2.70 £2.45 £2.23	Min.: 1 Mult.: 1	SAM3N	SMD/SMT	LQFP-64	ARM Cortex M3	32 kB	32 bit	10 bit	48 MHz	47 I/O	8 kB	1.8 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU High Performance 32-bit Microcontroller based on ARM Cortex-M3 LPC1812JBD144E NXP Semiconductors 1: £16.54 16In Stock	Mfr. Part No. LPC1812JBD144E Mouser Part No 771-LPC1812JBD144E	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	16In Stock	£16.54 £13.37 £10.75 £10.09 View £9.84 £9.63 £9.51 Quote	Min.: 1 Mult.: 1	LPC181x	SMD/SMT	LQFP-144	ARM Cortex M3	512 kB	32 bit	2 x 10 bit	180 MHz	83 I/O	104 kB	2.4 V	3.6 V	- 40 C	+ 105 C	Tray
ARM Microcontrollers - MCU Value Line M3 ARM 32 Kbytes 32 MHz STM32L100R8T6 STMicroelectronics 1: £6.70 690In Stock NRND	Mfr. Part No. STM32L100R8T6 Mouser Part No 511-STM32L100R8T6 NRND	STMicroelectronics	ARM Microcontrollers - MCU Value Line M3 ARM 32 Kbytes 32 MHz Learn More about STMicroelectronics stm32l1	Datasheet	690In Stock	£6.70 £4.68 £4.46 £3.88 View £3.69 £3.53 £3.44 £3.35 Quote	Min.: 1 Mult.: 1	STM32L100R8	SMD/SMT	LQFP-64	ARM Cortex M3	64 kB	32 bit	12 bit	32 MHz	51 I/O	8 kB	1.8 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 32-Bit Cortex 64Kb Access Line MCU STM32F101C8U6 STMicroelectronics 1: £4.70 1,019In Stock	Mfr. Part No. STM32F101C8U6 Mouser Part No 511-STM32F101C8U6	STMicroelectronics	ARM Microcontrollers - MCU 32-Bit Cortex 64Kb Access Line MCU Learn More about STMicroelectronics stm32f1	Datasheet	1,019In Stock	£4.70 £3.60 £3.15 £3.01 View £2.86 £2.78 £2.72 £2.62 Quote	Min.: 1 Mult.: 1	STM32F101C8	SMD/SMT	UFQFPN-48	ARM Cortex M3	64 kB	32 bit	12 bit	36 MHz	37 I/O	10 kB	2 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Mainstream Connectivity line, Arm Cortex-M3 MCU 256 Kbytes of Flash 72 MHz CPU, STM32F105VCT6V STMicroelectronics 1: £12.56 515In Stock NRND	Mfr. Part No. STM32F105VCT6V Mouser Part No 511-STM32F105VCT6V NRND	STMicroelectronics	ARM Microcontrollers - MCU Mainstream Connectivity line, Arm Cortex-M3 MCU 256 Kbytes of Flash 72 MHz CPU, Learn More about STMicroelectronics stm32f105	Datasheet	515In Stock	£12.56 £9.84 £9.11 £8.42 View £8.13 £7.93 £7.44 Quote	Min.: 1 Mult.: 1	STM32F105VC	SMD/SMT	LQFP-100	ARM Cortex M3	256 kB	32 bit	12 bit	72 MHz	80 I/O	64 kB	2 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU ARM 32Bit Value Line 48-Pin 64kB Flash STM32F100C8T6BTR STMicroelectronics 1: £4.43 12,000Expected 13/09/2027	Mfr. Part No. STM32F100C8T6BTR Mouser Part No 511-STM32F100C8T6BTR	STMicroelectronics	ARM Microcontrollers - MCU ARM 32Bit Value Line 48-Pin 64kB Flash Learn More about STMicroelectronics stm32f1	Datasheet	12,000Expected 13/09/2027	Cut Tape £4.43 £3.13 £2.93 £2.60 View Reel £2.24 £2.58 £2.37 £2.24 £2.24 MouseReel Available	Min.: 1 Mult.: 1 : 2,400	STM32F100C8	SMD/SMT	LQFP-48	ARM Cortex M3	64 kB	32 bit	12 bit	24 MHz	37 I/O	8 kB	2 V	3.6 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU Mainstream Performance line, Arm Cortex-M3 MCU 128 Kbytes of Flash 72 MHz CPU, m STM32F103CBU6TR STMicroelectronics 1: £6.43 4,991Expected 02/11/2026	Mfr. Part No. STM32F103CBU6TR Mouser Part No 511-STM32F103CBU6TR	STMicroelectronics	ARM Microcontrollers - MCU Mainstream Performance line, Arm Cortex-M3 MCU 128 Kbytes of Flash 72 MHz CPU, m Learn More about STMicroelectronics stm32f1	Datasheet	4,991Expected 02/11/2026	Cut Tape £6.43 £4.91 £4.37 £4.10 View Reel £3.47 £4.00 £3.66 £3.62 £3.47 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	STM32F103CB	SMD/SMT	UFQFPN-48	ARM Cortex M3	128 kB	32 bit	12 bit	72 MHz	37 I/O	20 kB	2 V	3.6 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32BIT Cortex M3 64KB 20KB RAM 2X12 ADC STM32F103R8T6 STMicroelectronics 1: £5.87 3,840On Order	Mfr. Part No. STM32F103R8T6 Mouser Part No 511-STM32F103R8T6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 64KB 20KB RAM 2X12 ADC Learn More about STMicroelectronics stm32f1	Datasheet	3,840On Order On Order Ship Dates Mfr. No: STM32F103R8T6 Stock: 0 On Order: 1,920 Expected 22/12/2026 1,920 Expected 23/02/2027 Factory Lead Time: 52 Weeks	£5.87 £4.52 £3.98 £3.72 £3.49	Min.: 1 Mult.: 1	STM32F103R8	SMD/SMT	LQFP-64	ARM Cortex M3	64 kB	32 bit	12 bit	72 MHz	64 I/O	20 kB	2 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Perform ARM 32Bit 32kB Flash 64-Pin STM32F103RFT6TR STMicroelectronics 1: £10.70 2,000Expected 12/07/2027	Mfr. Part No. STM32F103RFT6TR Mouser Part No 511-STM32F103RFT6TR	STMicroelectronics	ARM Microcontrollers - MCU Perform ARM 32Bit 32kB Flash 64-Pin Learn More about STMicroelectronics stm32f1	Datasheet	2,000Expected 12/07/2027	Cut Tape £10.70 £8.40 £7.64 £7.18 View Reel £6.51 £7.05 £6.63 £6.51 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	STM32F103RF	SMD/SMT	LQFP-64	ARM Cortex M3	768 kB	32 bit	12 bit	72 MHz		96 kB	2 V	3.6 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32-Bit ARM Cortex MED Density 128kb PL STM32F103TBU7 STMicroelectronics 1: £6.92 8,655Expected 31/05/2027	Mfr. Part No. STM32F103TBU7 Mouser Part No 511-STM32F103TBU7	STMicroelectronics	ARM Microcontrollers - MCU 32-Bit ARM Cortex MED Density 128kb PL Learn More about STMicroelectronics stm32f1	Datasheet	8,655Expected 31/05/2027	£6.92 £5.26 £4.85 £4.39 View £4.15 £3.98 £3.93	Min.: 1 Mult.: 1	STM32F103TB	SMD/SMT	VFQFPN-36	ARM Cortex M3	128 kB	32 bit	12 bit	72 MHz	26 I/O	20 kB	2 V	3.6 V	- 40 C	+ 105 C	Tray
ARM Microcontrollers - MCU 32BIT Cortex M3 384Kb Flash MCU STM32F103ZDH6 STMicroelectronics 1: £10.48 2,208Expected 04/12/2026	Mfr. Part No. STM32F103ZDH6 Mouser Part No 511-STM32F103ZDH6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 384Kb Flash MCU Learn More about STMicroelectronics stm32f1	Datasheet	2,208Expected 04/12/2026	£10.48 £8.21 £7.66 £7.11 £6.90	Min.: 1 Mult.: 1	STM32F103ZD	SMD/SMT	BGA-144	ARM Cortex M3	384 kB	32 bit	12 bit	72 MHz	112 I/O	64 kB	2 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT Cortex 64/25 CONNECTIVITY LINE M3 STM32F105R8T6 STMicroelectronics 1: £6.79 9,486On Order	Mfr. Part No. STM32F105R8T6 Mouser Part No 511-STM32F105R8T6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex 64/25 CONNECTIVITY LINE M3 Learn More about STMicroelectronics stm32f105	Datasheet	9,486On Order On Order Ship Dates Mfr. No: STM32F105R8T6 Stock: 0 On Order: 2,766 Expected 30/08/2027 6,720 TBD Factory Lead Time: 52 Weeks	£6.79 £4.57 £4.02 £3.75 £3.54	Min.: 1 Mult.: 1	STM32F105R8	SMD/SMT	LQFP-64	ARM Cortex M3	64 kB	32 bit	12 bit	72 MHz	51 I/O	64 kB	2 V	3.6 V	- 40 C	+ 85 C	Tray