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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 32BIT ARM Cortex M3 Connectivity 512kB STM32F205ZET6 STMicroelectronics 1: £11.54 16In Stock 360Expected 22/02/2027	Mfr. Part No. STM32F205ZET6 Mouser Part No 511-STM32F205ZET6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 512kB Learn More about STMicroelectronics stm32f2	Datasheet	16In Stock 360Expected 22/02/2027	£11.54 £9.20 £8.42 £8.38 View £7.73 £7.46 £7.39 Quote	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	LQFP-144	ARM Cortex M3	32 bit	120 MHz	512 kB	128 kB	12 bit	114 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU High-performance ARM Cortex-M3 MCU STM32F205ZET6TR STMicroelectronics 1: £12.74 41In Stock	Mfr. Part No. STM32F205ZET6TR Mouser Part No 511-STM32F205ZET6TR	STMicroelectronics	ARM Microcontrollers - MCU High-performance ARM Cortex-M3 MCU Learn More about STMicroelectronics stm32f2	Datasheet	41In Stock	Cut Tape £12.74 £9.99 £9.25 £8.54 Reel £8.08 View £8.23 £8.02 Quote MouseReel Available	Min.: 1 Mult.: 1 : 500	ARM Microcontrollers - MCU	SMD/SMT	LQFP-144	ARM Cortex M3	32 bit	120 MHz	512 kB	128 kB	12 bit	114 I/O	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU Hi-perf ARM Cortex M3 MCU 512Kb STM32F205ZET7 STMicroelectronics 1: £12.37 111In Stock 360Expected 22/02/2027	Mfr. Part No. STM32F205ZET7 Mouser Part No 511-STM32F205ZET7	STMicroelectronics	ARM Microcontrollers - MCU Hi-perf ARM Cortex M3 MCU 512Kb Learn More about STMicroelectronics stm32f2	Datasheet	111In Stock 360Expected 22/02/2027	£12.37 £9.92 £9.09 £8.60 View £8.14 £7.91 £7.83	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	LQFP-144	ARM Cortex M3	32 bit	120 MHz	512 kB	128 kB	12 bit	114 I/O	- 40 C	+ 105 C	Tray
ARM Microcontrollers - MCU High-performance Arm Cortex-M3 MCU 1 Mbyte of Flash , 120 MHz CPU, ART Accel STM32F205ZGT7 STMicroelectronics 1: £16.35 5In Stock	Mfr. Part No. STM32F205ZGT7 Mouser Part No 511-STM32F205ZGT7	STMicroelectronics	ARM Microcontrollers - MCU High-performance Arm Cortex-M3 MCU 1 Mbyte of Flash , 120 MHz CPU, ART Accel Learn More about STMicroelectronics stm32f2	Datasheet	5In Stock	£16.35 £12.64 £11.72 £10.91 £10.43	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	LQFP-144	ARM Cortex M3	32 bit	120 MHz	1 MB	128 kB	12 bit	114 I/O	- 40 C	+ 105 C	Tray
ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 512kB STM32F207IET6 STMicroelectronics 1: £14.41 3In Stock	Mfr. Part No. STM32F207IET6 Mouser Part No 511-STM32F207IET6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 512kB Learn More about STMicroelectronics stm32f2	Datasheet	3In Stock	£14.41 £12.70 £10.11 £9.71 £9.52	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	LQFP-176	ARM Cortex M3	32 bit	120 MHz	512 kB	128 kB	12 bit	140 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 1024kB STM32F207IGT6 STMicroelectronics 1: £15.94 42In Stock 800Expected 22/02/2027	Mfr. Part No. STM32F207IGT6 Mouser Part No 511-STM32F207IGT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 1024kB Learn More about STMicroelectronics stm32f2	Datasheet	42In Stock 800Expected 22/02/2027	£15.94 £15.84 £11.06 £10.82 £10.21	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	LQFP-176	ARM Cortex M3	32 bit	120 MHz	1 MB	128 kB	12 bit	140 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 256kB STM32F207VCT6 STMicroelectronics 1: £11.02 71In Stock 540Expected 22/02/2027	Mfr. Part No. STM32F207VCT6 Mouser Part No 511-STM32F207VCT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 256kB Learn More about STMicroelectronics stm32f2	Datasheet	71In Stock 540Expected 22/02/2027	£11.02 £8.08 £7.10 £6.95	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	LQFP-100	ARM Cortex M3	32 bit	120 MHz	256 kB	96 kB	12 bit	82 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 1024kB STM32F207VGT6 STMicroelectronics 1: £13.04 14In Stock 2,700Expected 22/02/2027	Mfr. Part No. STM32F207VGT6 Mouser Part No 511-STM32F207VGT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 1024kB Learn More about STMicroelectronics stm32f2	Datasheet	14In Stock 2,700Expected 22/02/2027	£13.04 £10.33 £9.44 £9.14 £8.76	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	LQFP-100	ARM Cortex M3	32 bit	120 MHz	1 MB	132 kB	12 bit	82 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU ARM Cortex-M3 MCU 1Mb Flash 120MHz STM32F207VGT6TR STMicroelectronics 1: £13.73 14In Stock 1,000Expected 24/02/2027	Mfr. Part No. STM32F207VGT6TR Mouser Part No 511-STM32F207VGT6TR	STMicroelectronics	ARM Microcontrollers - MCU ARM Cortex-M3 MCU 1Mb Flash 120MHz Learn More about STMicroelectronics stm32f2	Datasheet	14In Stock 1,000Expected 24/02/2027	Cut Tape £13.73 £10.89 £9.73 £9.38 View Reel £8.20 £9.27 £8.79 £8.20 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	ARM Microcontrollers - MCU	SMD/SMT	LQFP-100	ARM Cortex M3	32 bit	120 MHz	1 MB	132 kB	12 bit	82 I/O	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 256kB STM32F207ZCT6 STMicroelectronics 1: £12.27 16In Stock	Mfr. Part No. STM32F207ZCT6 Mouser Part No 511-STM32F207ZCT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 256kB Learn More about STMicroelectronics stm32f2	Datasheet	16In Stock	£12.27 £9.62 £8.90 £8.22 £8.08	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	LQFP-144	ARM Cortex M3	32 bit	120 MHz	256 kB	96 kB	12 bit	114 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 512kB STM32F207ZET6 STMicroelectronics 1: £14.06 51In Stock 360Expected 22/02/2027	Mfr. Part No. STM32F207ZET6 Mouser Part No 511-STM32F207ZET6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 512kB Learn More about STMicroelectronics stm32f2	Datasheet	51In Stock 360Expected 22/02/2027	£14.06 £9.87 £8.90 £8.67 View £8.49 £8.45	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	LQFP-144	ARM Cortex M3	32 bit	120 MHz	512 kB	128 kB	12 bit	114 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 32-Bit ARM Cortex 1024kb Connectivity STM32F207ZGT7 STMicroelectronics 1: £16.63 109In Stock 720Expected 22/02/2027	Mfr. Part No. STM32F207ZGT7 Mouser Part No 511-STM32F207ZGT7	STMicroelectronics	ARM Microcontrollers - MCU 32-Bit ARM Cortex 1024kb Connectivity Learn More about STMicroelectronics stm32f2	Datasheet	109In Stock 720Expected 22/02/2027	£16.63 £13.25 £11.55 £11.16 £10.53	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	LQFP-144	ARM Cortex M3	32 bit	120 MHz	1 MB	128 kB	12 bit	114 I/O	- 40 C	+ 105 C	Tray
ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 1024kB STM32F215RGT6 STMicroelectronics 1: £13.21 15In Stock 1,920On Order	Mfr. Part No. STM32F215RGT6 Mouser Part No 511-STM32F215RGT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 1024kB Learn More about STMicroelectronics stm32f2	Datasheet	15In Stock 1,920On Order On Order Ship Dates Mfr. No: STM32F215RGT6 Stock: 15 Can Dispatch Immediately On Order: 960 Expected 22/02/2027 960 TBD Factory Lead Time: 52 Weeks	£13.21 £10.35 £9.58 £8.84 View £8.53 £8.24	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 32BIT ARM Cortex M3 Connectivity 512kB STM32F217VET6 STMicroelectronics 1: £12.44 151In Stock	Mfr. Part No. STM32F217VET6 Mouser Part No 511-STM32F217VET6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 512kB Learn More about STMicroelectronics stm32f2	Datasheet	151In Stock	£12.44 £9.20 £8.50 £7.94 View £7.52 £7.42 Quote	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	LQFP-100	ARM Cortex M3	32 bit	120 MHz	512 kB	128 kB	12 bit	82 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU ARM Cortex M3 512kB USB OTG 150DMIPs 17 STM32F217VET6TR STMicroelectronics 1: £13.18 1In Stock 2,000Expected 24/02/2027	Mfr. Part No. STM32F217VET6TR Mouser Part No 511-STM32F217VET6TR	STMicroelectronics	ARM Microcontrollers - MCU ARM Cortex M3 512kB USB OTG 150DMIPs 17 Learn More about STMicroelectronics stm32f2	Datasheet	1In Stock 2,000Expected 24/02/2027	Cut Tape £13.18 £10.17 £9.27 £8.72 View Reel £7.73 £8.56 £7.94 £7.73 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	ARM Microcontrollers - MCU	SMD/SMT	LQFP-100	ARM Cortex M3	32 bit	120 MHz	512 kB	128 kB	12 bit	82 I/O	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 512kB STM32F217ZET6 STMicroelectronics 1: £14.04 55In Stock	Mfr. Part No. STM32F217ZET6 Mouser Part No 511-STM32F217ZET6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 512kB Learn More about STMicroelectronics stm32f2	Datasheet	55In Stock	£14.04 £11.13 £9.86 £9.29 View £8.68 £8.34 Quote	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	LQFP-144	ARM Cortex M3	32 bit	120 MHz	512 kB	128 kB	12 bit	114 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power 32-bit Value Line Arm Cortex-M3 MCU 256 Kbytes of Flash 32 MHz C STM32L100RCT6TR STMicroelectronics 1: £6.51 47In Stock 1,000Expected 01/03/2027	Mfr. Part No. STM32L100RCT6TR Mouser Part No 511-STM32L100RCT6TR	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power 32-bit Value Line Arm Cortex-M3 MCU 256 Kbytes of Flash 32 MHz C Learn More about STMicroelectronics stm32l1	Datasheet	47In Stock 1,000Expected 01/03/2027	Cut Tape £6.51 £4.98 £4.43 £4.16 View Reel £3.65 £4.02 £3.76 £3.65 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	ARM Microcontrollers - MCU	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	32 MHz	256 kB	16 kB	12 bit	51 I/O	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 32 Kbytes of Flash , 32 MHz CPU, USB STM32L151C6T6ATR STMicroelectronics 1: £3.52 52In Stock 4,800On Order	Mfr. Part No. STM32L151C6T6ATR Mouser Part No 511-STM32L151C6T6ATR	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	52In Stock 4,800On Order On Order Ship Dates Mfr. No: STM32L151C6T6ATR Stock: 52 Can Dispatch Immediately On Order: 2,400 Expected 02/08/2027 2,400 TBD Factory Lead Time: 40 Weeks	Cut Tape £3.52 £2.72 £2.41 £2.31 View Reel £2.23 £2.30 £2.23 £2.23 MouseReel Available	Min.: 1 Mult.: 1 : 2,400	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	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 64 Kbytes of Flash , 32 MHz CPU, USB STM32L151C8U6A STMicroelectronics 1: £5.50 10In Stock 1,560Expected 22/03/2027	Mfr. Part No. STM32L151C8U6A Mouser Part No 511-STM32L151C8U6A	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 64 Kbytes of Flash , 32 MHz CPU, USB Learn More about STMicroelectronics stm32l1	Datasheet	10In Stock 1,560Expected 22/03/2027	£5.50 £4.05 £3.76 £3.18 View £3.01 £2.79 £2.76	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	UFQPFN-48	ARM Cortex M3	32 bit	32 MHz	64 kB	10 kB	12 bit	37 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 256 Kbytes of Flash 32 MHz CPU, USB, 2xOp-amp STM32L151CCT6TR STMicroelectronics 1: £6.63 33In Stock 4,800On Order	Mfr. Part No. STM32L151CCT6TR Mouser Part No 511-STM32L151CCT6TR	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 256 Kbytes of Flash 32 MHz CPU, USB, 2xOp-amp Learn More about STMicroelectronics stm32l1	Datasheet	33In Stock 4,800On Order	Cut Tape £6.63 £5.11 £4.52 £4.28 View Reel £3.41 £4.21 £3.76 £3.58 £3.41 MouseReel Available	Min.: 1 Mult.: 1 : 2,400	ARM Microcontrollers - MCU	SMD/SMT	LQFP-48	ARM Cortex M3	32 bit	32 MHz	256 kB	32 kB	12 bit	37 I/O	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 64 Kbytes of Flash , 32 MHz CPU, USB STM32L151R8T6A STMicroelectronics 1: £5.13 21In Stock	Mfr. Part No. STM32L151R8T6A Mouser Part No 511-STM32L151R8T6A	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 64 Kbytes of Flash , 32 MHz CPU, USB Learn More about STMicroelectronics stm32l1	Datasheet	21In Stock	£5.13 £3.94 £3.46 £3.22 View £3.13 £3.08 £2.85 Quote	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	32 MHz	64 kB	10 kB	12 bit	51 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 128 Kbytes of Flash , 32 MHz CPU, USB STM32L151RBT6ATR STMicroelectronics 1: £6.09 7In Stock 2,000Expected 22/02/2027	Mfr. Part No. STM32L151RBT6ATR Mouser Part No 511-STM32L151RBT6ATR	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 128 Kbytes of Flash , 32 MHz CPU, USB Learn More about STMicroelectronics stm32l1	Datasheet	7In Stock 2,000Expected 22/02/2027	Cut Tape £6.09 £4.38 £4.06 £3.72 View Reel £3.36 £3.62 £3.37 £3.36 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	ARM Microcontrollers - MCU	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	32 MHz	128 kB	16 kB	12 bit	51 I/O	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 64 Kbytes of Flash , 32 MHz CPU, USB STM32L151V8T6A STMicroelectronics 1: £5.65 324In Stock	Mfr. Part No. STM32L151V8T6A Mouser Part No 511-STM32L151V8T6A	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 64 Kbytes of Flash , 32 MHz CPU, USB Learn More about STMicroelectronics stm32l1	Datasheet	324In Stock	£5.65 £4.16 £3.88 £3.62 View £3.45 £3.23 £3.19 Quote	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	LQFP-100	ARM Cortex M3	32 bit	32 MHz	128 kB	32 kB	12 bit	83 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 64 Kbytes of Flash , 32 MHz CPU, LCD, USB STM32L152C8T6A STMicroelectronics 1: £4.96 342In Stock 1,500Expected 22/02/2027	Mfr. Part No. STM32L152C8T6A Mouser Part No 511-STM32L152C8T6A	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 64 Kbytes of Flash , 32 MHz CPU, LCD, USB Learn More about STMicroelectronics stm32l1	Datasheet	342In Stock 1,500Expected 22/02/2027	£4.96 £3.80 £3.33 £3.20 View £3.04 £3.01 £2.78 £2.73 Quote	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	LQFP-48	ARM Cortex M3	32 bit	32 MHz	64 kB	10 kB	12 bit	37 I/O	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 128 Kbytes of Flash , 32 MHz CPU, LCD, USB STM32L152RBT6A STMicroelectronics 1: £6.03 34In Stock 27,840On Order	Mfr. Part No. STM32L152RBT6A Mouser Part No 511-STM32L152RBT6A	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 128 Kbytes of Flash , 32 MHz CPU, LCD, USB Learn More about STMicroelectronics stm32l1	Datasheet	34In Stock 27,840On Order	£6.03 £4.64 £4.61 £4.00 View £3.90 £3.68	Min.: 1 Mult.: 1	ARM Microcontrollers - MCU	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	32 MHz	128 kB	16 kB	12 bit	51 I/O	- 40 C	+ 85 C	Tray