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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 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	SMD/SMT	LQFP-100	ARM Cortex M3	32 bit	32 MHz	512 kB	80 kB	12 bit	83 I/O	1.8 V	3.6 V	+ 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	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	48 MHz	32 kB	8 kB	10 bit	47 I/O	1.8 V	3.6 V	+ 85 C	Tray
RF Microcontrollers - MCU SimpleLink Ultra-LP Wireless Microcontrl A 595-CC1350F128RHBR CC1350F128RHBT Texas Instruments 1: £8.77 61In Stock	Mfr. Part No. CC1350F128RHBT Mouser Part No 595-CC1350F128RHBT	Texas Instruments	RF Microcontrollers - MCU SimpleLink Ultra-LP Wireless Microcontrl A 595-CC1350F128RHBR Learn More about Texas Instruments ti cc1350 simplelink mcu	Datasheet	61In Stock	Cut Tape £8.77 £7.05 £6.67 £5.95 Reel £5.63 View £5.33 £5.23 Quote MouseReel Available	Min.: 1 Mult.: 1 : 250	SMD/SMT	VQFN-32	ARM Cortex M3	32 bit	48 MHz	128 kB	20 kB	12 bit	15 I/O	1.8 V	3.8 V	+ 85 C	Reel, Cut Tape, MouseReel
RF Microcontrollers - MCU SimpleLink 6LoWPAN Z igBee wireless MCU A 595-CC2630F128RGZR CC2630F128RGZT Texas Instruments 1: £5.88 153In Stock	Mfr. Part No. CC2630F128RGZT Mouser Part No 595-CC2630F128RGZT	Texas Instruments	RF Microcontrollers - MCU SimpleLink 6LoWPAN Z igBee wireless MCU A 595-CC2630F128RGZR Learn More about Texas Instruments ti cc2630 simplelink mcus	Datasheet	153In Stock	Cut Tape £5.88 £4.53 £4.20 £3.92 Reel £3.32 £3.27 MouseReel Available	Min.: 1 Mult.: 1 : 250	SMD/SMT	VQFN-48	ARM Cortex M3	32 bit	48 MHz	128 kB	20 kB	12 bit	31 I/O	1.7 V	3.8 V	+ 85 C	Reel, Cut Tape, MouseReel
RF Microcontrollers - MCU SimpleLink 32-bit A rm Cortex -M3 Bluet A 595-CC2640R2FYFVT CC2640R2FYFVR Texas Instruments 1: £4.57 27In Stock	Mfr. Part No. CC2640R2FYFVR Mouser Part No 595-CC2640R2FYFVR	Texas Instruments	RF Microcontrollers - MCU SimpleLink 32-bit A rm Cortex -M3 Bluet A 595-CC2640R2FYFVT Learn More about Texas Instruments ti cc2640r2f simplelink	Datasheet	27In Stock	Cut Tape £4.57 £3.50 £3.23 £2.93 View Reel £2.65 £2.80 £2.72 £2.68 £2.65 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	DSBGA-34	ARM Cortex M3	32 bit	48 MHz	128 kB	20 kB	12 bit	14 I/O	1.8 V	3.8 V	+ 85 C	Reel, Cut Tape, MouseReel
RF Microcontrollers - MCU Bluetooth BLE and IEEE 802.15.4 CYW20704UA2KFFB1G Infineon Technologies 1: £4.65 10In Stock	Mfr. Part No. CYW20704UA2KFFB1G Mouser Part No 727-CYW20704UA2KFFB1	Infineon Technologies	RF Microcontrollers - MCU Bluetooth BLE and IEEE 802.15.4 Learn More about Infineon Technologies cypress cyw20704 processor	Datasheet	10In Stock	£4.65 £3.77 £3.52 £3.22 View £3.00 £2.90 £2.85 £2.84 Quote	Min.: 1 Mult.: 1	SMD/SMT	FCBGA-49	ARM Cortex M3	32 bit	96 MHz	848 kB	352 kB	16 bit, 16 bit	8 I/O	1.2 V, 3.3 V	1.2 V, 3.3 V	+ 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	SMD/SMT	LQFP-144	ARM Cortex M3	32 bit	180 MHz	512 kB	104 kB	2 x 10 bit	83 I/O	2.4 V	3.6 V	+ 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	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	32 MHz	64 kB	8 kB	12 bit	51 I/O	1.8 V	3.6 V	+ 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	SMD/SMT	UFQFPN-48	ARM Cortex M3	32 bit	36 MHz	64 kB	10 kB	12 bit	37 I/O	2 V	3.6 V	+ 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	SMD/SMT	LQFP-100	ARM Cortex M3	32 bit	72 MHz	256 kB	64 kB	12 bit	80 I/O	2 V	3.6 V	+ 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	SMD/SMT	LQFP-48	ARM Cortex M3	32 bit	24 MHz	64 kB	8 kB	12 bit	37 I/O	2 V	3.6 V	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32BIT Cortex M3 M/D Performance LINE STM32F103CBT6TR STMicroelectronics 1: £6.60 10,942Expected 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	10,942Expected 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 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	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	72 MHz	64 kB	20 kB	12 bit	64 I/O	2 V	3.6 V	+ 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	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	72 MHz	768 kB	96 kB	12 bit		2 V	3.6 V	+ 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	SMD/SMT	VFQFPN-36	ARM Cortex M3	32 bit	72 MHz	128 kB	20 kB	12 bit	26 I/O	2 V	3.6 V	+ 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	SMD/SMT	BGA-144	ARM Cortex M3	32 bit	72 MHz	384 kB	64 kB	12 bit	112 I/O	2 V	3.6 V	+ 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	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	72 MHz	64 kB	64 kB	12 bit	51 I/O	2 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT Cortex 64/25 CONNECTIVITY LINE M3 STM32F107RBT6 STMicroelectronics 1: £7.96 3,689On Order	Mfr. Part No. STM32F107RBT6 Mouser Part No 511-STM32F107RBT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex 64/25 CONNECTIVITY LINE M3 Learn More about STMicroelectronics STM32F107	Datasheet	3,689On Order On Order Ship Dates Mfr. No: STM32F107RBT6 Stock: 0 On Order: 809 Expected 14/04/2027 960 Expected 30/08/2027 1,920 TBD Factory Lead Time: 52 Weeks	£7.96 £6.18 £5.70 £5.12 £4.84	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	72 MHz	128 kB	64 kB	12 bit	51 I/O	2 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power 32-bit Value Line Arm Cortex-M3 MCU 64 Kbytes of Flash 32 MHz CP STM32L100R8T6A STMicroelectronics 1: £5.40 4,800Expected 22/02/2027	Mfr. Part No. STM32L100R8T6A Mouser Part No 511-STM32L100R8T6A	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power 32-bit Value Line Arm Cortex-M3 MCU 64 Kbytes of Flash 32 MHz CP Learn More about STMicroelectronics stm32l1	Datasheet	4,800Expected 22/02/2027	£5.40 £4.03 £3.67 £3.30 View £3.20 £2.88	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	32 MHz	64 kB	8 kB	12 bit	51 I/O	1.8 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 128 Kbytes of Flash , 32 MHz CPU, USB STM32L151CBT6ATR STMicroelectronics 1: £5.61 4,800Expected 22/02/2027	Mfr. Part No. STM32L151CBT6ATR Mouser Part No 511-STM32L151CBT6ATR	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	4,800Expected 22/02/2027	Cut Tape £5.61 £4.25 £3.79 £3.54 View Reel £3.00 £3.46 £3.16 £3.00 £3.00 MouseReel Available	Min.: 1 Mult.: 1 : 2,400	SMD/SMT	LQFP-48	ARM Cortex M3	32 bit	32 MHz	128 kB	16 kB	12 bit	37 I/O	1.8 V	3.6 V	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 256 Kbytes of Flash 32 MHz CPU, USB, 2xOp-amp STM32L151CCU6TR STMicroelectronics 1: £6.26 8,833On Order	Mfr. Part No. STM32L151CCU6TR Mouser Part No 511-STM32L151CCU6TR	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	8,833On Order	Cut Tape £6.26 £4.84 £4.26 £4.09 View Reel £3.57 £4.03 £3.78 £3.73 £3.57 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	UFQPFN-48	ARM Cortex M3	32 bit	32 MHz	256 kB	32 kB	12 bit	37 I/O	1.65 V	3.6 V	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 512 Kbytes of Flash 32 MHz CPU, USB, 2xOp-amp STM32L151QEH6 STMicroelectronics 1: £11.25 9,984On Order	Mfr. Part No. STM32L151QEH6 Mouser Part No 511-STM32L151QEH6	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	9,984On Order	£11.25 £8.83 £8.05 £7.57 View £7.21 £7.00 £6.92	Min.: 1 Mult.: 1	SMD/SMT	BGA-132	ARM Cortex M3	32 bit	32 MHz	512 kB	80 kB	12 bit	109 I/O	1.65 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 512 Kbytes of Flash 32 MHz CPU, MCD, USB, 2xOp STM32L151VET6 STMicroelectronics 1: £9.53 2,521On Order	Mfr. Part No. STM32L151VET6 Mouser Part No 511-STM32L151VET6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 512 Kbytes of Flash 32 MHz CPU, MCD, USB, 2xOp Learn More about STMicroelectronics stm32l1	Datasheet	2,521On Order	£9.53 £6.97 £6.41 £5.97	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	32 bit	32 MHz	512 kB	80 kB	12 bit	83 I/O	1.65 V	3.6 V	+ 85 C	Tray
RF Microcontrollers - MCU SimpleLink 32-bit A rm Cortex-M3 Sub-1 G A 595-CC1310F128RGZT CC1310F128RGZR Texas Instruments 1: £5.31 5,000Expected 03/05/2027	Mfr. Part No. CC1310F128RGZR Mouser Part No 595-CC1310F128RGZR	Texas Instruments	RF Microcontrollers - MCU SimpleLink 32-bit A rm Cortex-M3 Sub-1 G A 595-CC1310F128RGZT Learn More about Texas Instruments ti cc1310 simplelink mcu	Datasheet	5,000Expected 03/05/2027	Cut Tape £5.31 £4.59 £4.36 £4.02 View Reel £3.37 £3.82 £3.68 £3.54 £3.37 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	VQFN-48	ARM Cortex M3	32 bit	48 MHz	128 kB	20 kB	12 bit	30 I/O	1.8 V	3.8 V	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 256K Flash 64K SRAM PSoC 5LP CY8C5868LTI-LP039 Infineon Technologies 1: £22.07 980On Order	Mfr. Part No. CY8C5868LTI-LP039 Mouser Part No 727-CY8C5868LTILP039	Infineon Technologies	ARM Microcontrollers - MCU 256K Flash 64K SRAM PSoC 5LP Learn More about Infineon Technologies cypress psoc5lp	Datasheet	980On Order On Order Ship Dates Mfr. No: CY8C5868LTI-LP039 Stock: 0 On Order: 460 Expected 05/11/2026 520 Expected 26/11/2026 Factory Lead Time: 18 Weeks	£22.07 £17.78 £16.06 £15.47 View £14.95 £14.42 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-68	ARM Cortex M3	32 bit	67 MHz	256 kB	64 kB	12 bit	48 I/O	1.71 V	1.89 V	+ 85 C	Tray