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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 LQFP,Grn, IT, MRL A ATSAM3SD8BA-AU Microchip Technology 1: £6.40 5In Stock	Mfr. Part No. ATSAM3SD8BA-AU Mouser Part No 556-ATSAM3SD8BA-AU	Microchip Technology	ARM Microcontrollers - MCU LQFP,Grn, IT, MRL A Learn More about Microchip Technology microchip sam3s mcu	Datasheet	5In Stock	£6.40 £5.82 £5.26	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 LQFP,Grn, IT, MRL A ATSAM3SD8CA-AU Microchip Technology 1: £6.77 80In Stock	Mfr. Part No. ATSAM3SD8CA-AU Mouser Part No 556-ATSAM3SD8CA-AU	Microchip Technology	ARM Microcontrollers - MCU LQFP,Grn, IT, MRL A Learn More about Microchip Technology microchip sam3s mcu	Datasheet	80In Stock	£6.77 £6.54	Min.: 1 Mult.: 1	SAM3S	SMD/SMT	QFP-100	ARM Cortex M3	512 kB	32 bit	12 bit	64 MHz	79 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 M3 ATSAM3U2EA-AU Microchip Technology 1: £6.06 57In Stock	Mfr. Part No. ATSAM3U2EA-AU Mouser Part No 556-ATSAM3U2EA-AU	Microchip Technology	ARM Microcontrollers - MCU 128K Flash, 36K SRAM 32-bit ARM Cortex M3 Learn More about Microchip Technology microchip sam3u mcus	Datasheet	57In Stock	£6.06 £5.51 £4.99	Min.: 1 Mult.: 1	SAM3U	SMD/SMT	LQFP-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 128k Flash, 16k RAM, AES EFM32G210F128G-E-QFN32R Silicon Labs 1: £5.10 28In Stock 3,000Expected 20/11/2026	Mfr. Part No. EFM32G210F128G-E-QFN32R Mouser Part No 634-32G210128GEFN32R	Silicon Labs	ARM Microcontrollers - MCU 128k Flash, 16k RAM, AES	Datasheet	28In Stock 3,000Expected 20/11/2026	Cut Tape £5.10 £3.97 £3.55 £3.28 £3.25 Reel £2.88 MouseReel Available	Min.: 1 Mult.: 1 : 3,000		SMD/SMT	QFN-32	ARM Cortex M3	128 kB	32 bit	12 bit	32 MHz	24 I/O	16 kB	1.98 V	3.8 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 1024k Flash, 128k RAM, AES EFM32GG280F1024G-E-QFP100R Silicon Labs 1: £14.64 22In Stock	Mfr. Part No. EFM32GG280F1024G-E-QFP100R Mouser Part No 634-32GG280F1024-E-T	Silicon Labs	ARM Microcontrollers - MCU 1024k Flash, 128k RAM, AES Learn More about Silicon Labs energymicro efm32giant	Datasheet	22In Stock	Cut Tape £14.64 £11.60 £10.84 £10.00 View Reel £9.37 £9.54 £9.37 £9.37	Min.: 1 Mult.: 1 : 1,000	EFM32GG	SMD/SMT	LQFP-100	ARM Cortex M3	1.02 MB	32 bit	12 bit	48 MHz	85 I/O	128 kB	1.98 V	3.8 V	- 40 C	+ 85 C	Reel, Cut Tape
ARM Microcontrollers - MCU 512k Flash, 128k RAM, USB, AES EFM32GG330F512G-E-QFN64R Silicon Labs 1: £11.39 1,363In Stock	Mfr. Part No. EFM32GG330F512G-E-QFN64R Mouser Part No 634-32GG330F512-E-T	Silicon Labs	ARM Microcontrollers - MCU 512k Flash, 128k RAM, USB, AES Learn More about Silicon Labs energymicro efm32giant	Datasheet	1,363In Stock	Cut Tape £11.39 £8.92 £8.30 £7.62 View Reel £6.57 £7.55 £7.11 £6.95 £6.57 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	EFM32GG	SMD/SMT	QFN-64	ARM Cortex M3	512 kB	32 bit	12 bit	48 MHz	52 I/O	128 kB	1.98 V	3.8 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU ARM Cortex-M3 32-bit 40 MHz 128 kB MCU EFM32JG1B200F128GM48-C0 Silicon Labs 1: £3.45 947In Stock End of Life	Mfr. Part No. EFM32JG1B200F128GM48-C0 Mouser Part No 634-JG1B200F128GM48C End of Life	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	947In Stock	£3.45 £2.72 £2.51 £2.11 View £2.07 £2.06	Min.: 1 Mult.: 1	EFM32JG	SMD/SMT	QFN-48	ARM Cortex M3	128 kB	32 bit	12 bit	40 MHz	32 I/O	32 kB	1.85 V	3.8 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 16-bit, Low Power Sensor Micro ADUCM355BCCZ Analog Devices 1: £21.97 342In Stock	Mfr. Part No. ADUCM355BCCZ Mouser Part No 584-ADUCM355BCCZ	Analog Devices	ARM Microcontrollers - MCU 16-bit, Low Power Sensor Micro Learn More about Analog Devices aducm355 analog mcus	Datasheet	342In Stock	£21.97 £17.19 £16.42 £14.48 View £14.13 £13.91 Quote	Min.: 1 Mult.: 1	ADuCM355	SMD/SMT	LGA-72	ARM Cortex M3	128 kB	32 bit	16 bit	26 MHz	17 I/O	64 kB	2.8 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Cortex M3 MCU + Single 24bit S-D AFE ADUCM361BCPZ128 Analog Devices 1: £13.64 418In Stock	Mfr. Part No. ADUCM361BCPZ128 Mouser Part No 584-ADUCM361BCPZ128	Analog Devices	ARM Microcontrollers - MCU Cortex M3 MCU + Single 24bit S-D AFE Learn More about Analog Devices analog aducm36x mcus	Datasheet	418In Stock	£13.64 £11.02 £10.56 £9.31 View £8.85 £8.09 £7.96 Quote	Min.: 1 Mult.: 1	ADUCM361	SMD/SMT	LFCSP-48	ARM Cortex M3	128 kB	32 bit	24 bit	16 MHz	19 I/O	8 kB	1.8 V	3.6 V	- 40 C	+ 125 C	Tray
ARM Microcontrollers - MCU Cortex M3 + 16K/128K + Dual 24bit SD AFE ADUCM362BCPZ128 Analog Devices 1: £19.76 21In Stock	Mfr. Part No. ADUCM362BCPZ128 Mouser Part No 584-ADUCM362BCPZ128	Analog Devices	ARM Microcontrollers - MCU Cortex M3 + 16K/128K + Dual 24bit SD AFE Learn More about Analog Devices analog aducm36x mcus	Datasheet	21In Stock	£19.76 £18.11 £14.34 £14.06 View £13.98 £13.27	Min.: 1 Mult.: 1	ADUCM362	SMD/SMT	LFCSP-48	ARM Cortex M3	128 kB	32 bit	24 bit	16 MHz	19 I/O	16 kB	1.8 V	3.6 V	- 40 C	+ 125 C	Tray
ARM Microcontrollers - MCU Cortex M3 +16K/128K +Single 24bit SD AFE ADUCM363BCPZ128 Analog Devices 1: £16.05 42In Stock	Mfr. Part No. ADUCM363BCPZ128 Mouser Part No 584-ADUCM363BCPZ128	Analog Devices	ARM Microcontrollers - MCU Cortex M3 +16K/128K +Single 24bit SD AFE Learn More about Analog Devices analog aducm36x mcus	Datasheet	42In Stock	£16.05 £13.33 £12.84 £11.34 View £11.03 £10.42 Quote	Min.: 1 Mult.: 1	ADUCM363	SMD/SMT	LFCSP-48	ARM Cortex M3	128 kB	32 bit	24 bit	16 MHz	19 I/O	16 kB	1.8 V	3.6 V	- 40 C	+ 125 C	Tray
ARM Microcontrollers - MCU Cortex M3 MCU + Dual 24bit S-D AFE ADUCM360BCPZ128-R7 Analog Devices 1: £20.19 761In Stock 2,250On Order	Mfr. Part No. ADUCM360BCPZ128-R7 Mouser Part No 584-AUCM360BCPZ128R7	Analog Devices	ARM Microcontrollers - MCU Cortex M3 MCU + Dual 24bit S-D AFE Learn More about Analog Devices analog aducm36x mcus	Datasheet	761In Stock 2,250On Order	Cut Tape £20.19 £15.79 £15.09 £13.71 View Reel £12.68 £13.23 £12.93 £12.68 Quote MouseReel Available	Min.: 1 Mult.: 1 : 750	ADUCM360	SMD/SMT	LFCSP-48	ARM Cortex M3	128 kB	32 bit	24 bit	20 MHz	19 I/O	8 kB	1.8 V	3.6 V	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU EMBEDDED_POWER TLE98912QTW61XUMA1 Infineon Technologies 1: £7.71 57In Stock	Mfr. Part No. TLE98912QTW61XUMA1 Mouser Part No 726-TLE98912QTW61XUM	Infineon Technologies	ARM Microcontrollers - MCU EMBEDDED_POWER Learn More about Infineon Technologies infineon motix tle989x microcontrollers	Datasheet	57In Stock	Cut Tape £7.71 £5.96 £5.68 £4.93 View Reel £3.99 £4.71 £4.30 £4.07 £3.99 Quote	Min.: 1 Mult.: 1 : 2,500	TLE989x	SMD/SMT	TQFP-48	ARM Cortex M3	144 kB	32 bit		60 MHz	8 I/O	144 kB	5.5 V	28 V	- 40 C	+ 175 C	Reel, Cut Tape
ARM Microcontrollers - MCU 64k Flash, 16k RAM, AES EFM32G230F64G-E-QFN64 Silicon Labs 1: £4.98 190In Stock NRND	Mfr. Part No. EFM32G230F64G-E-QFN64 Mouser Part No 634-32G230F64GEQFN64 NRND	Silicon Labs	ARM Microcontrollers - MCU 64k Flash, 16k RAM, AES	Datasheet	190In Stock	£4.98 £3.82 £3.52 £3.20 View £3.05 £2.96 £2.92 £2.89	Min.: 1 Mult.: 1		SMD/SMT	QFN-64	ARM Cortex M3	64 kB	32 bit	12 bit	32 MHz	56 I/O	16 kB	1.98 V	3.8 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 128k Flash, 16k RAM, AES EFM32G232F128G-E-QFP64 Silicon Labs 1: £5.73 225In Stock NRND	Mfr. Part No. EFM32G232F128G-E-QFP64 Mouser Part No 634-32G232F128GEFP64 NRND	Silicon Labs	ARM Microcontrollers - MCU 128k Flash, 16k RAM, AES	Datasheet	225In Stock	£5.73 £4.50 £4.14 £4.02 View £3.51 £3.47 £3.40 £3.25	Min.: 1 Mult.: 1		SMD/SMT	TQFP-64	ARM Cortex M3	128 kB	32 bit	12 bit	32 MHz	53 I/O	16 kB	1.98 V	3.8 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 128k Flash, 16k RAM, AES EFM32G280F128G-E-QFP100 Silicon Labs 1: £6.66 Non-Stocked Lead-Time 12 Weeks NRND	Mfr. Part No. EFM32G280F128G-E-QFP100 Mouser Part No 634-32G280128GEFP100 NRND	Silicon Labs	ARM Microcontrollers - MCU 128k Flash, 16k RAM, AES	Datasheet	Non-Stocked Lead-Time 12 Weeks	£6.66 £5.16 £4.78 £4.37 View £4.17 £4.05 £3.95 £3.74	Min.: 1 Mult.: 1		SMD/SMT	LQFP-100	ARM Cortex M3	128 kB	32 bit	12 bit	32 MHz	86 I/O	16 kB	1.98 V	3.8 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 128k Flash, 16k RAM, 4x22 LCD, AES EFM32G842F128G-E-QFP64 Silicon Labs 1: £6.51 32In Stock NRND	Mfr. Part No. EFM32G842F128G-E-QFP64 Mouser Part No 634-32G842F128GEFP64 NRND	Silicon Labs	ARM Microcontrollers - MCU 128k Flash, 16k RAM, 4x22 LCD, AES	Datasheet	32In Stock	£6.51 £5.05 £4.68 £4.28 View £4.09 £3.97 £3.86 £3.67	Min.: 1 Mult.: 1		SMD/SMT	TQFP-64	ARM Cortex M3	128 kB	32 bit	12 bit	32 MHz	53 I/O	16 kB	1.98 V	3.8 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 128k Flash, 16k RAM, 4x40 LCD, AES EFM32G880F128G-E-QFP100 Silicon Labs 1: £7.09 24In Stock NRND	Mfr. Part No. EFM32G880F128G-E-QFP100 Mouser Part No 634-32G880F128EFP100 NRND	Silicon Labs	ARM Microcontrollers - MCU 128k Flash, 16k RAM, 4x40 LCD, AES	Datasheet	24In Stock	£7.09 £5.51 £5.12 £4.69 View £4.44 £4.36 £4.26 Quote	Min.: 1 Mult.: 1		SMD/SMT	LQFP-100	ARM Cortex M3	128 kB	32 bit	12 bit	32 MHz	86 I/O	16 kB	1.98 V	3.8 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 512k Flash, 128k RAM, USB, AES EFM32GG380F512G-E-QFP100 Silicon Labs 1: £12.76 35In Stock NRND	Mfr. Part No. EFM32GG380F512G-E-QFP100 Mouser Part No 634-32GG380F512-E NRND	Silicon Labs	ARM Microcontrollers - MCU 512k Flash, 128k RAM, USB, AES Learn More about Silicon Labs energymicro efm32giant	Datasheet	35In Stock	£12.76 £10.00 £9.31 £8.55 View £8.46 £7.96 £7.79 Quote	Min.: 1 Mult.: 1	EFM32GG	SMD/SMT	LQFP-100	ARM Cortex M3	512 kB	32 bit	12 bit	48 MHz	81 I/O	128 kB	1.98 V	3.8 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 1024k Flash, 128k RAM, USB, AES EFM32GG390F1024G-E-BGA112 Silicon Labs 1: £15.56 44In Stock NRND	Mfr. Part No. EFM32GG390F1024G-E-BGA112 Mouser Part No 634-32GG390F1024-E NRND	Silicon Labs	ARM Microcontrollers - MCU 1024k Flash, 128k RAM, USB, AES Learn More about Silicon Labs energymicro efm32giant	Datasheet	44In Stock	£15.56 £12.33 £11.52 £10.64 View £10.14 £9.96	Min.: 1 Mult.: 1	EFM32GG	SMD/SMT	BGA-112	ARM Cortex M3	1.02 MB	32 bit	12 bit	48 MHz	86 I/O	128 kB	1.98 V	3.8 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 32B ARM Cortex-M3 Value line 16KB Flsh STM32F100C4T6BTR STMicroelectronics 1: £4.21 59In Stock 2,400Expected 13/09/2027	Mfr. Part No. STM32F100C4T6BTR Mouser Part No 511-STM32F100C4T6BTR	STMicroelectronics	ARM Microcontrollers - MCU 32B ARM Cortex-M3 Value line 16KB Flsh Learn More about STMicroelectronics stm32f1	Datasheet	59In Stock 2,400Expected 13/09/2027	Cut Tape £4.21 £3.02 £2.73 £2.50 View Reel £2.01 £2.39 £2.14 £2.01 £2.01 MouseReel Available	Min.: 1 Mult.: 1 : 2,400	STM32F100C4	SMD/SMT		ARM Cortex M3	16 kB	32 bit	12 bit	24 MHz	37 I/O	4 kB	2 V	3.6 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32BIT CORTEX M3 48PINS 32KB STM32F100C6T6B STMicroelectronics 1: £4.25 167In Stock	Mfr. Part No. STM32F100C6T6B Mouser Part No 511-STM32F100C6T6B	STMicroelectronics	ARM Microcontrollers - MCU 32BIT CORTEX M3 48PINS 32KB Learn More about STMicroelectronics stm32f1	Datasheet	167In Stock	£4.25 £3.04 £2.76 £2.51 View £2.38 £2.21 £2.19	Min.: 1 Mult.: 1	STM32F100C6	SMD/SMT		ARM Cortex M3	32 kB	32 bit	12 bit	24 MHz	37 I/O	4 kB	2 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 32-Bit ARM Cortex 64 Kbyte Value Line STM32F100C8T7B STMicroelectronics 1: £4.39 13In Stock	Mfr. Part No. STM32F100C8T7B Mouser Part No 511-STM32F100C8T7B	STMicroelectronics	ARM Microcontrollers - MCU 32-Bit ARM Cortex 64 Kbyte Value Line Learn More about STMicroelectronics stm32f1	Datasheet	13In Stock	£4.39 £3.34 £3.04 £2.81 View £2.67 £2.62 £2.56 £2.54 Quote	Min.: 1 Mult.: 1	STM32F100C8	SMD/SMT		ARM Cortex M3	64 kB	32 bit	12 bit	24 MHz	37 I/O	8 kB	2 V	3.6 V	- 40 C	+ 105 C	Tray
ARM Microcontrollers - MCU 32BIT CORTEX M3 48PINS 128KB STM32F100CBT6B STMicroelectronics 1: £4.71 164In Stock 1,500Expected 15/11/2027	Mfr. Part No. STM32F100CBT6B Mouser Part No 511-STM32F100CBT6B	STMicroelectronics	ARM Microcontrollers - MCU 32BIT CORTEX M3 48PINS 128KB Learn More about STMicroelectronics stm32f1	Datasheet	164In Stock 1,500Expected 15/11/2027	£4.71 £3.55 £3.15 £2.98 View £2.85 £2.65 £2.49 £2.42 Quote	Min.: 1 Mult.: 1	STM32F100CB	SMD/SMT	LQFP-48	ARM Cortex M3	128 kB	32 bit	12 bit	24 MHz	37 I/O	8 kB	2 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT CORTEX M3 64PINS 32KB STM32F100R6T6B STMicroelectronics 1: £4.43 150In Stock 960On Order	Mfr. Part No. STM32F100R6T6B Mouser Part No 511-STM32F100R6T6B	STMicroelectronics	ARM Microcontrollers - MCU 32BIT CORTEX M3 64PINS 32KB Learn More about STMicroelectronics stm32f1	Datasheet	150In Stock 960On Order	£4.43 £3.38 £3.08 £2.85 View £2.60 £2.49 £2.42 Quote	Min.: 1 Mult.: 1	STM32F100R6	SMD/SMT	LQFP-64	ARM Cortex M3		32 bit					2 V	3.6 V	- 40 C	+ 85 C	Tray