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ARM Cortex M3 Core 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.	Mounting Style	Package/Case	Core	Data Bus Width	Maximum Clock Frequency	Program Memory Size	Data RAM Size	ADC Resolution	Number of I/Os	Supply Voltage - Min	Supply Voltage - Max	Maximum Operating Temperature	Packaging
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	SMD/SMT		ARM Cortex M3	32 bit	24 MHz	16 kB	4 kB	12 bit	37 I/O	2 V	3.6 V	+ 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	SMD/SMT		ARM Cortex M3	32 bit	24 MHz	32 kB	4 kB	12 bit	37 I/O	2 V	3.6 V	+ 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	SMD/SMT		ARM Cortex M3	32 bit	24 MHz	64 kB	8 kB	12 bit	37 I/O	2 V	3.6 V	+ 105 C	Tray
ARM Microcontrollers - MCU 32BIT CORTEX M3 48PINS 128KB STM32F100CBT6B STMicroelectronics 1: £4.71 264In 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	264In 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	SMD/SMT	LQFP-48	ARM Cortex M3	32 bit	24 MHz	128 kB	8 kB	12 bit	37 I/O	2 V	3.6 V	+ 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	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit						2 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU ARM 32Bit Value Line 64-Pin 32kB Flash STM32F100RDT6B STMicroelectronics 1: £5.80 140In Stock	Mfr. Part No. STM32F100RDT6B Mouser Part No 511-STM32F100RDT6B	STMicroelectronics	ARM Microcontrollers - MCU ARM 32Bit Value Line 64-Pin 32kB Flash Learn More about STMicroelectronics stm32f1	Datasheet	140In Stock	£5.80 £4.67 £4.40 £4.16 View £3.99 £3.91 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	24 MHz	384 kB	32 kB	12 bit	51 I/O	2 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT CORTEX M3 Value Line 128KB STM32F100VBT6B STMicroelectronics 1: £5.87 36In Stock 4,320On Order	Mfr. Part No. STM32F100VBT6B Mouser Part No 511-STM32F100VBT6B	STMicroelectronics	ARM Microcontrollers - MCU 32BIT CORTEX M3 Value Line 128KB Learn More about STMicroelectronics stm32f1	Datasheet	36In Stock 4,320On Order On Order Ship Dates Mfr. No: STM32F100VBT6B Stock: 36 Can Dispatch Immediately On Order: 2,700 Expected 02/08/2027 1,620 Expected 06/09/2027 Factory Lead Time: 52 Weeks	£5.87 £4.19 £3.95 £3.75 £3.47	Min.: 1 Mult.: 1	SMD/SMT		ARM Cortex M3	32 bit	24 MHz	128 kB	8 kB	12 bit	80 I/O	2 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU ARM 32Bit Value Line 100-Pin 32kB Flash STM32F100VCT6BTR STMicroelectronics 1: £6.24 146In Stock	Mfr. Part No. STM32F100VCT6BTR Mouser Part No 511-STM32F100VCT6BTR	STMicroelectronics	ARM Microcontrollers - MCU ARM 32Bit Value Line 100-Pin 32kB Flash Learn More about STMicroelectronics stm32f1	Datasheet	146In Stock	Cut Tape £6.24 £4.83 £4.26 £4.09 Reel £3.62 View £3.94 £3.57 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	LQFP-100	ARM Cortex M3	32 bit	24 MHz	256 kB	24 kB	12 bit	80 I/O	2 V	3.6 V	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32BIT Cortex M3 128K 16KB RAM 1X12 ADC STM32F101RBT6 STMicroelectronics 1: £4.30 342In Stock	Mfr. Part No. STM32F101RBT6 Mouser Part No 511-STM32F101RBT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 128K 16KB RAM 1X12 ADC Learn More about STMicroelectronics stm32f1	Datasheet	342In Stock	£4.30 £3.52 £3.29 £3.14 View £3.11 £3.08 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	36 MHz	128 kB	16 kB	12 bit	64 I/O	2 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT Cortex M3 H/D ACCESS USB MCU STM32F101RCT6 STMicroelectronics 1: £7.24 31In Stock 960Expected 01/01/2027	Mfr. Part No. STM32F101RCT6 Mouser Part No 511-STM32F101RCT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 H/D ACCESS USB MCU Learn More about STMicroelectronics stm32f1	Datasheet	31In Stock 960Expected 01/01/2027	£7.24 £5.43 £5.18 £4.77 View £4.66 £4.41 £4.24	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	36 MHz	256 kB	32 kB	12 bit	51 I/O	2 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Access Line 364kB STM32F101RDT6TR STMicroelectronics 1: £7.93 98In Stock	Mfr. Part No. STM32F101RDT6TR Mouser Part No 511-STM32F101RDT6TR	STMicroelectronics	ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Access Line 364kB Learn More about STMicroelectronics stm32f1	Datasheet	98In Stock	Cut Tape £7.93 £6.14 £5.85 £5.07 View Reel £4.48 £4.92 £4.58 £4.48 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	36 MHz	384 kB	48 kB			2 V	3.6 V	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32BIT Cortex M3 Access Line STM32F101RET6 STMicroelectronics 1: £8.84 64In Stock 960On Order	Mfr. Part No. STM32F101RET6 Mouser Part No 511-STM32F101RET6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 Access Line Learn More about STMicroelectronics stm32f1	Datasheet	64In Stock 960On Order	£8.84 £6.90 £6.23 £5.41	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	36 MHz	512 kB	48 kB	12 bit	51 I/O	2 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT Cortex M3 L/D Access Line STM32F101T6U6A STMicroelectronics 1: £4.32 10In Stock	Mfr. Part No. STM32F101T6U6A Mouser Part No 511-STM32F101T6U6A	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 L/D Access Line Learn More about STMicroelectronics stm32f1	Datasheet	10In Stock	£4.32 £3.70 £2.88 £2.76 View £2.54 £2.47 £2.40 Quote	Min.: 1 Mult.: 1	SMD/SMT	UFQFPN-36	ARM Cortex M3	32 bit	36 MHz	32 kB	6 kB	12 bit	26 I/O	2 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT Cortex M3 64KB 20KB RAM 2X12 ADC STM32F101V8T6 STMicroelectronics 1: £5.73 182In Stock	Mfr. Part No. STM32F101V8T6 Mouser Part No 511-STM32F101V8T6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 64KB 20KB RAM 2X12 ADC Learn More about STMicroelectronics stm32f1	Datasheet	182In Stock	£5.73 £4.09 £3.74 £3.46 View £3.28 £3.25 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	32 bit	36 MHz	64 kB	10 kB	12 bit	100 I/O	2 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT Cortex M3 H/D ACCESS USB MCU STM32F101ZCT6 STMicroelectronics 1: £8.30 99In Stock	Mfr. Part No. STM32F101ZCT6 Mouser Part No 511-STM32F101ZCT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 H/D ACCESS USB MCU Learn More about STMicroelectronics stm32f1	Datasheet	99In Stock	£8.30 £6.47 £5.67 £5.46 View £5.24 £4.93 £4.87 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-144	ARM Cortex M3	32 bit	36 MHz	256 kB	32 kB	12 bit	112 I/O	2 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT Cortex M3 ACCESS LINE STM32F101ZET6 STMicroelectronics 1: £9.93 182In Stock	Mfr. Part No. STM32F101ZET6 Mouser Part No 511-STM32F101ZET6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 ACCESS LINE Learn More about STMicroelectronics stm32f1	Datasheet	182In Stock	£9.93 £7.79 £6.85 £6.60 View £6.50 £5.75 £5.67 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-144	ARM Cortex M3	32 bit	36 MHz	512 kB	48 kB	12 bit	112 I/O	2 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU XL-Density Access Line 32-Bit 1G Flash STM32F101ZGT6 STMicroelectronics 1: £12.39 41In Stock	Mfr. Part No. STM32F101ZGT6 Mouser Part No 511-STM32F101ZGT6	STMicroelectronics	ARM Microcontrollers - MCU XL-Density Access Line 32-Bit 1G Flash Learn More about STMicroelectronics stm32f1	Datasheet	41In Stock	£12.39 £10.18 £8.98 £8.31 View £7.85 £7.34 £7.22 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-144	ARM Cortex M3	32 bit	36 MHz	1 MB	80 kB		112 I/O	2 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT Cortex M3 L/D USB MCU STM32F102C6T6A STMicroelectronics 1: £5.30 41In Stock 1,500Expected 28/12/2026	Mfr. Part No. STM32F102C6T6A Mouser Part No 511-STM32F102C6T6A	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 L/D USB MCU Learn More about STMicroelectronics stm32f1	Datasheet	41In Stock 1,500Expected 28/12/2026	£5.30 £3.89 £3.63 £3.20 View £3.03 £2.77 £2.60	Min.: 1 Mult.: 1	SMD/SMT	LQFP-48	ARM Cortex M3	32 bit	48 MHz	32 kB	6 kB	12 bit	37 I/O	2 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU 32-Bit Cortex 64Kb Access Line MCU STM32F102C6T6ATR STMicroelectronics 1: £5.30 1,177In Stock	Mfr. Part No. STM32F102C6T6ATR Mouser Part No 511-STM32F102C6T6ATR	STMicroelectronics	ARM Microcontrollers - MCU 32-Bit Cortex 64Kb Access Line MCU Learn More about STMicroelectronics stm32f1	Datasheet	1,177In Stock	Cut Tape £5.30 £3.89 £3.63 £3.20 View Reel £2.52 £3.03 £2.72 £2.60 £2.52 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,400	SMD/SMT	LQFP-48	ARM Cortex M3	32 bit	48 MHz	32 kB	6 kB	12 bit	37 I/O	2 V	3.6 V	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32BIT Cortex M3 USB 7 TIMERS 2 ADCS CAN STM32F103C8T6TR STMicroelectronics 1: £5.81 38In Stock 19,200On Order	Mfr. Part No. STM32F103C8T6TR Mouser Part No 511-STM32F103C8T6TR	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 USB 7 TIMERS 2 ADCS CAN Learn More about STMicroelectronics stm32f1	Datasheet	38In Stock 19,200On Order On Order Ship Dates Mfr. No: STM32F103C8T6TR Stock: 38 Can Dispatch Immediately On Order: 4,800 Expected 25/01/2027 14,400 Expected 23/08/2027 Factory Lead Time: 40 Weeks	Cut Tape £5.81 £4.47 £3.93 £3.43 View Reel £3.12 £3.34 £3.12 £3.12 MouseReel Available	Min.: 1 Mult.: 1 : 2,400	SMD/SMT	LQFP-48	ARM Cortex M3	32 bit	72 MHz	64 kB	20 kB	12 bit	37 I/O	2 V	3.6 V	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32BIT Cortex M3 Medium-density STM32F103C8T7 STMicroelectronics 1: £6.63 268In Stock 7,500On Order	Mfr. Part No. STM32F103C8T7 Mouser Part No 511-STM32F103C8T7	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 Medium-density Learn More about STMicroelectronics stm32f1	Datasheet	268In Stock 7,500On Order On Order Ship Dates Mfr. No: STM32F103C8T7 Stock: 268 Can Dispatch Immediately On Order: 3,000 Expected 06/09/2027 4,500 Expected 11/10/2027 Factory Lead Time: 40 Weeks	£6.63 £5.12 £4.52 £4.33 View £4.14 £4.02	Min.: 1 Mult.: 1	SMD/SMT	LQFP-48	ARM Cortex M3	32 bit	72 MHz	64 kB	20 kB	12 bit	37 I/O	2 V	3.6 V	+ 105 C	Tray
ARM Microcontrollers - MCU 32BIT Cortex M3 M/D Performance LINE STM32F103CBT6TR STMicroelectronics 1: £6.60 33In Stock 10,909Expected 25/01/2027	Mfr. Part No. STM32F103CBT6TR Mouser Part No 511-STM32F103CBT6TR	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 M/D Performance LINE Learn More about STMicroelectronics stm32f1	Datasheet	33In Stock 10,909Expected 25/01/2027	Cut Tape £6.60 £5.10 £4.52 £3.98 £3.81 Reel £3.81 MouseReel Available	Min.: 1 Mult.: 1 Max.: 360 : 2,400	SMD/SMT	LQFP-48	ARM Cortex M3	32 bit	72 MHz	128 kB	20 kB	12 bit	37 I/O	2 V	3.6 V	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32BIT Cortex M3 USB CAN 11 TMRS 3 ADCS STM32F103RDT6TR STMicroelectronics 1: £8.63 25In Stock 1,000On Order	Mfr. Part No. STM32F103RDT6TR Mouser Part No 511-STM32F103RDT6TR	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 USB CAN 11 TMRS 3 ADCS Learn More about STMicroelectronics stm32f1	Datasheet	25In Stock 1,000On Order	Cut Tape £8.63 £6.72 £6.20 £5.72 View Reel £5.01 £5.46 £5.08 £5.01 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	72 MHz	384 kB	64 kB	12 bit	51 I/O	2 V	3.6 V	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32BIT Cortex M3 H/D Performance LINE STM32F103RET6TR STMicroelectronics 1: £9.52 9In Stock 2,000On Order	Mfr. Part No. STM32F103RET6TR Mouser Part No 511-STM32F103RET6TR	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 H/D Performance LINE Learn More about STMicroelectronics stm32f1	Datasheet	9In Stock 2,000On Order	Cut Tape £9.52 £7.51 £7.16 £6.22 View Reel £5.45 £5.94 £5.57 £5.45 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	72 MHz	512 kB	64 kB	12 bit	51 I/O	2 V	3.6 V	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU XL-Density Access Line 32-Bit 768 Kb STM32F103RFT6 STMicroelectronics 1: £11.02 19In Stock 1,920Expected 12/07/2027	Mfr. Part No. STM32F103RFT6 Mouser Part No 511-STM32F103RFT6	STMicroelectronics	ARM Microcontrollers - MCU XL-Density Access Line 32-Bit 768 Kb Learn More about STMicroelectronics stm32f1	Datasheet	19In Stock 1,920Expected 12/07/2027	£11.02 £8.65 £7.37 £6.91 View £6.85 £6.84	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	72 MHz	768 kB	80 kB	12 bit	112 I/O	2 V	3.6 V	+ 85 C	Tray