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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 32BIT ARM Cortex M3 Connectivity 1024kB STM32F207ZGT6TR STMicroelectronics 1: £15.32 124In Stock	Mfr. Part No. STM32F207ZGT6TR Mouser Part No 511-STM32F207ZGT6TR	STMicroelectronics	ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 1024kB Learn More about STMicroelectronics stm32f2	Datasheet	124In Stock	Cut Tape £15.32 £12.19 £10.93 £10.54 Reel £9.87 View £10.37 £9.86 Quote MouseReel Available	Min.: 1 Mult.: 1 : 500	SMD/SMT	LQFP-144	ARM Cortex M3	32 bit	120 MHz	1 MB	128 kB	12 bit	114 I/O	1.8 V	3.6 V	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU Ultra-low-power 32-bit Value Line Arm Cortex-M3 MCU 128 Kbytes of Flash 32 MHz C STM32L100RBT6A STMicroelectronics 1: £5.49 831In Stock	Mfr. Part No. STM32L100RBT6A Mouser Part No 511-STM32L100RBT6A	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power 32-bit Value Line Arm Cortex-M3 MCU 128 Kbytes of Flash 32 MHz C Learn More about STMicroelectronics stm32l1	Datasheet	831In Stock	£5.49 £4.22 £3.71 £3.46 View £3.25 £3.22 £3.20 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	32 MHz	128 kB	10 kB	12 bit	51 I/O	1.8 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power 32-bit Value Line Arm Cortex-M3 MCU 128 Kbytes of Flash 32 MHz C STM32L100RBT6ATR STMicroelectronics 1: £5.15 542In Stock	Mfr. Part No. STM32L100RBT6ATR Mouser Part No 511-STM32L100RBT6ATR	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power 32-bit Value Line Arm Cortex-M3 MCU 128 Kbytes of Flash 32 MHz C Learn More about STMicroelectronics stm32l1	Datasheet	542In Stock	Cut Tape £5.15 £3.96 £3.48 £3.33 Reel £3.08 View £3.20 £2.94 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	32 MHz	128 kB	10 kB	12 bit	51 I/O	1.8 V	3.6 V	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU Value Line M3 ARM 32 Kbytes 32 MHz STM32L100RCT6 STMicroelectronics 1: £6.14 685In Stock	Mfr. Part No. STM32L100RCT6 Mouser Part No 511-STM32L100RCT6	STMicroelectronics	ARM Microcontrollers - MCU Value Line M3 ARM 32 Kbytes 32 MHz Learn More about STMicroelectronics stm32l1	Datasheet	685In Stock	£6.14 £4.75 £4.18 £3.90 View £3.68 £3.67	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	32 MHz	256 kB	16 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 STM32L151CBT6A STMicroelectronics 1: £5.30 997In Stock	Mfr. Part No. STM32L151CBT6A Mouser Part No 511-STM32L151CBT6A	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	997In Stock	£5.30 £3.82 £3.54 £3.24 View £3.10 £2.99 £2.95 £2.91 Quote	Min.: 1 Mult.: 1	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	Tray
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 128 Kbytes of Flash , 32 MHz CPU, USB STM32L151CBU6A STMicroelectronics 1: £6.00 2,232In Stock	Mfr. Part No. STM32L151CBU6A Mouser Part No 511-STM32L151CBU6A	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	2,232In Stock	£6.00 £4.19 £4.00 £3.47 View £3.31 £3.16 £3.08 £2.99 Quote	Min.: 1 Mult.: 1	SMD/SMT	UFQPFN-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	Tray
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 128 Kbytes of Flash , 32 MHz CPU, USB STM32L151RBT6A STMicroelectronics 1: £6.37 1,010In Stock	Mfr. Part No. STM32L151RBT6A Mouser Part No 511-STM32L151RBT6A	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	1,010In Stock	£6.37 £4.55 £4.26 £3.76 View £3.71 £3.49 £3.35 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	32 MHz	128 kB	16 kB	12 bit	51 I/O	1.65 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU STM32L15 Low Power M3 384kB 32MHz MCU STM32L151RDT6 STMicroelectronics 1: £7.53 440In Stock	Mfr. Part No. STM32L151RDT6 Mouser Part No 511-STM32L151RDT6	STMicroelectronics	ARM Microcontrollers - MCU STM32L15 Low Power M3 384kB 32MHz MCU Learn More about STMicroelectronics stm32l1	Datasheet	440In Stock	£7.53 £5.85 £5.18 £4.85 View £4.57 £4.54 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	32 MHz	384 kB	48 kB	12 bit	51 I/O	1.65 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU STM32L15 Low Power M3 384kB 32MHz MCU STM32L151VDT6 STMicroelectronics 1: £8.23 410In Stock	Mfr. Part No. STM32L151VDT6 Mouser Part No 511-STM32L151VDT6	STMicroelectronics	ARM Microcontrollers - MCU STM32L15 Low Power M3 384kB 32MHz MCU Learn More about STMicroelectronics stm32l1	Datasheet	410In Stock	£8.23 £6.29 £5.78 £5.44 View £5.23 £4.98 £4.87	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	32 bit	32 MHz	384 kB	16 kB	12 bit	83 I/O	1.65 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 32 Kbytes of Flash , 32 MHz CPU, LCD, USB STM32L152C6U6A STMicroelectronics 1: £5.12 1,142In Stock	Mfr. Part No. STM32L152C6U6A Mouser Part No 511-STM32L152C6U6A	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 32 Kbytes of Flash , 32 MHz CPU, LCD, USB Learn More about STMicroelectronics stm32l1	Datasheet	1,142In Stock	£5.12 £3.76 £3.51 £3.08 View £2.92 £2.63 £2.51 £2.44 Quote	Min.: 1 Mult.: 1	SMD/SMT	UFQPFN-48	ARM Cortex M3	32 bit	32 MHz	32 kB	10 kB	12 bit	37 I/O	1.65 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra Low M3 ARM 256 Kbytes 32 MHz STM32L152CCT6 STMicroelectronics 1: £6.15 1,008In Stock	Mfr. Part No. STM32L152CCT6 Mouser Part No 511-STM32L152CCT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra Low M3 ARM 256 Kbytes 32 MHz Learn More about STMicroelectronics stm32l1	Datasheet	1,008In Stock	£6.15 £4.76 £4.42 £4.03 View £3.87 £3.65 £3.47 £3.35	Min.: 1 Mult.: 1	SMD/SMT	LQFP-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	Tray
ARM Microcontrollers - MCU Ultra Low M3 ARM 256 Kbytes 32 MHz STM32L152RCT6 STMicroelectronics 1: £6.71 750In Stock	Mfr. Part No. STM32L152RCT6 Mouser Part No 511-STM32L152RCT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra Low M3 ARM 256 Kbytes 32 MHz Learn More about STMicroelectronics stm32l1	Datasheet	750In Stock	£6.71 £5.19 £4.58 £4.29 View £4.12 £3.87 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	32 MHz	256 kB	32 kB	12 bit	51 I/O	1.65 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU MRL A 256K Flash 48K SRAM Ind Temp ATSAM3S4BA-AU Microchip Technology 1: £4.91 1,556In Stock	Mfr. Part No. ATSAM3S4BA-AU Mouser Part No 556-ATSAM3S4BA-AU	Microchip Technology	ARM Microcontrollers - MCU MRL A 256K Flash 48K SRAM Ind Temp Learn More about Microchip Technology microchip sam3s mcu	Datasheet	1,556In Stock	£4.91 £4.45 £4.05	Min.: 1 Mult.: 1	SMD/SMT	QFP-64	ARM Cortex M3	32 bit	64 MHz	256 kB	48 kB	12 bit	47 I/O	1.62 V	1.9 V	+ 85 C	Tray
RF Microcontrollers - MCU 433 868 915 MHz ULP Wireless MCU A 595-C A 595-CC1310F128RHBT CC1310F128RHBR Texas Instruments 1: £5.71 2,698In Stock	Mfr. Part No. CC1310F128RHBR Mouser Part No 595-CC1310F128RHBR	Texas Instruments	RF Microcontrollers - MCU 433 868 915 MHz ULP Wireless MCU A 595-C A 595-CC1310F128RHBT Learn More about Texas Instruments ti cc1310 simplelink mcu	Datasheet	2,698In Stock	Cut Tape £5.71 £4.41 £4.08 £3.72 £3.61 Reel £3.06 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	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 433 868 915 MHz ULP Wireless MCU A 595-C A 595-CC1310F128RSMT CC1310F128RSMR Texas Instruments 1: £4.91 689In Stock 3,000On Order	Mfr. Part No. CC1310F128RSMR Mouser Part No 595-CC1310F128RSMR	Texas Instruments	RF Microcontrollers - MCU 433 868 915 MHz ULP Wireless MCU A 595-C A 595-CC1310F128RSMT Learn More about Texas Instruments ti cc1310 simplelink mcu	Datasheet	689In Stock 3,000On Order	Cut Tape £4.91 £4.02 £3.76 £3.44 View Reel £2.90 £3.27 £3.16 £3.08 £2.90 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-32	ARM Cortex M3	32 bit	48 MHz	128 kB	20 kB	12 bit	10 I/O	1.8 V	3.8 V	+ 85 C	Reel, Cut Tape, MouseReel
RF Microcontrollers - MCU SimpleLink 32-bit A rm Cortex-M3 Bluetoo A 595-CC2640F128RHBT CC2640F128RHBR Texas Instruments 1: £4.63 1,407In Stock	Mfr. Part No. CC2640F128RHBR Mouser Part No 595-CC2640F128RHBR	Texas Instruments	RF Microcontrollers - MCU SimpleLink 32-bit A rm Cortex-M3 Bluetoo A 595-CC2640F128RHBT Learn More about Texas Instruments ti cc2640 simplelink mcus	Datasheet	1,407In Stock	Cut Tape £4.63 £3.75 £3.51 £3.20 View Reel £2.60 £2.74 £2.65 £2.60 £2.60 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	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 32-bit A rm Cortex -M3 Bluet A 595-CC2640R2FRHBT CC2640R2FRHBR Texas Instruments 1: £4.16 2,756In Stock	Mfr. Part No. CC2640R2FRHBR Mouser Part No 595-CC2640R2FRHBR	Texas Instruments	RF Microcontrollers - MCU SimpleLink 32-bit A rm Cortex -M3 Bluet A 595-CC2640R2FRHBT Learn More about Texas Instruments ti cc2640r2f simplelink	Datasheet	2,756In Stock	Cut Tape £4.16 £3.37 £3.14 £2.87 View Reel £2.50 £2.73 £2.64 £2.58 £2.50 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	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 32-bit A rm Cortex -M3 Bluet A 595-CC2640R2FRSMT CC2640R2FRSMR Texas Instruments 1: £3.95 3,015In Stock	Mfr. Part No. CC2640R2FRSMR Mouser Part No 595-CC2640R2FRSMR	Texas Instruments	RF Microcontrollers - MCU SimpleLink 32-bit A rm Cortex -M3 Bluet A 595-CC2640R2FRSMT Learn More about Texas Instruments ti cc2640r2f simplelink	Datasheet	3,015In Stock	Cut Tape £3.95 £3.02 £2.78 £2.52 £2.48 Reel £2.10 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	VQFN-32	ARM Cortex M3	32 bit	48 MHz	128 kB	20 kB	12 bit	10 I/O	1.8 V	3.8 V	+ 85 C	Reel, Cut Tape, MouseReel
RF Microcontrollers - MCU SimpleLink Bluetooth low enrgy Wirels MC A 595-CC2640R2FRSMR CC2640R2FRSMT Texas Instruments 1: £4.64 523In Stock	Mfr. Part No. CC2640R2FRSMT Mouser Part No 595-CC2640R2FRSMT	Texas Instruments	RF Microcontrollers - MCU SimpleLink Bluetooth low enrgy Wirels MC A 595-CC2640R2FRSMR Learn More about Texas Instruments ti cc2640r2f simplelink	Datasheet	523In Stock	Cut Tape £4.64 £3.56 £3.29 £2.99 Reel £2.85 View £2.76 £2.72 £2.70 MouseReel Available	Min.: 1 Mult.: 1 : 250	SMD/SMT	VQFN-32	ARM Cortex M3	32 bit	48 MHz	128 kB	20 kB	12 bit	10 I/O	1.8 V	3.8 V	+ 85 C	Reel, Cut Tape, MouseReel
RF Microcontrollers - MCU SimpleLink multi-std Wireless MCU 2.4Ghz A 595-CC2650F128RGZT CC2650F128RGZR Texas Instruments 1: £5.88 1,497In Stock	Mfr. Part No. CC2650F128RGZR Mouser Part No 595-CC2650F128RGZR	Texas Instruments	RF Microcontrollers - MCU SimpleLink multi-std Wireless MCU 2.4Ghz A 595-CC2650F128RGZT Learn More about Texas Instruments ti cc2650 simplelink mcus	Datasheet	1,497In Stock	Cut Tape £5.88 £4.63 £4.28 £3.90 View Reel £3.33 £3.62 £3.61 £3.51 £3.33 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	VQFN-48	ARM Cortex M3	32 bit	2.4 GHz	128 kB	30 kB	12 bit	31 I/O	1.8 V	3.8 V	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU MM-LEGACY MM CY9BF524LPMC1-G-MNE2 Infineon Technologies 1: £5.86 1,600In Stock	Mfr. Part No. CY9BF524LPMC1-G-MNE2 Mouser Part No 727-9BF524LPMC1GMNE2	Infineon Technologies	ARM Microcontrollers - MCU MM-LEGACY MM	Datasheet	1,600In Stock	£5.86 £4.53 £3.99 £3.73 View £3.51 £3.50	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	72 MHz	256 kB	32 kB	12 bit	50 I/O	2.7 V	5.5 V	+ 105 C	Tray
ARM Microcontrollers - MCU 5.50 V, PSoC 5 CapSense Plus CY8C5267AXI-LP051 Infineon Technologies 1: £11.05 572In Stock 900Expected 24/12/2026	Mfr. Part No. CY8C5267AXI-LP051 Mouser Part No 727-CY8C5267AXILP051	Infineon Technologies	ARM Microcontrollers - MCU 5.50 V, PSoC 5 CapSense Plus Learn More about Infineon Technologies cypress psoc5lp	Datasheet	572In Stock 900Expected 24/12/2026	£11.05 £8.71 £7.53 £7.28 View £7.05 £6.78 Quote	Min.: 1 Mult.: 1	SMD/SMT	TQFP-100	ARM Cortex M3	32 bit	67 MHz	128 kB	32 kB	12 bit	72 I/O	1.71 V	1.89 V	+ 85 C	Tray
ARM Microcontrollers - MCU PSOC 5LP DIGITAL ONLY,67MHZ,256K CY8C5268AXI-LP047 Infineon Technologies 1: £11.24 444In Stock	Mfr. Part No. CY8C5268AXI-LP047 Mouser Part No 727-CY8C5268AXILP047	Infineon Technologies	ARM Microcontrollers - MCU PSOC 5LP DIGITAL ONLY,67MHZ,256K Learn More about Infineon Technologies cypress psoc5lp	Datasheet	444In Stock	£11.24 £8.85 £7.65 £7.39 View £7.12 £6.63 £6.56 Quote	Min.: 1 Mult.: 1	SMD/SMT	TQFP-100	ARM Cortex M3	32 bit	67 MHz	256 kB	64 kB	12 bit	72 I/O	1.71 V	1.89 V	+ 85 C	Tray
ARM Microcontrollers - MCU PSOC 5 LP, 67MHZ 2AB 256K FLASH CY8C5268LTI-LP030 Infineon Technologies 1: £10.28 1,043In Stock	Mfr. Part No. CY8C5268LTI-LP030 Mouser Part No 727-CY8C5268LTILP030	Infineon Technologies	ARM Microcontrollers - MCU PSOC 5 LP, 67MHZ 2AB 256K FLASH Learn More about Infineon Technologies cypress psoc5lp	Datasheet	1,043In Stock	£10.28 £8.09 £7.21 £6.94 View £6.63 £6.47 £6.33 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
ARM Microcontrollers - MCU PSOC 5 LP, 67MHZ 2AB 256K FLASH CY8C5467LTI-LP003 Infineon Technologies 1: £10.45 928In Stock	Mfr. Part No. CY8C5467LTI-LP003 Mouser Part No 727-CY8C5467LTILP003	Infineon Technologies	ARM Microcontrollers - MCU PSOC 5 LP, 67MHZ 2AB 256K FLASH Learn More about Infineon Technologies cypress psoc5lp	Datasheet	928In Stock	£10.45 £8.22 £7.33 £7.05 View £6.75 £6.71 £6.46 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-68	ARM Cortex M3	32 bit	67 MHz	128 kB	32 kB	12 bit	48 I/O	1.71 V	1.89 V	+ 85 C	Tray