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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 (CAD) Filter the results in the table by unit price based on your quantity.	Qty.	Mounting Style	Package / Case	Core	Number of I/Os	Data Bus Width	ADC Resolution
ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB EFM32LG842F256G-F-QFP64R Silicon Labs 1: $17.01 5,787In Stock	Mfr. Part # EFM32LG842F256G-F-QFP64R Mouser Part # 634-32LG842256GFQFPR	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	5,787In Stock	Cut Tape $17.01 $13.32 $12.40 $11.38 View Reel $10.37 $11.28 $10.61 $10.37 Quote	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	TQFP-64	ARM Cortex M3	53 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 128K Flash, 36K SRAM 32-bit ARM Cortex M3 ATSAM3U2CA-CU Microchip Technology 1: $8.67 4,419In Stock	Mfr. Part # ATSAM3U2CA-CU Mouser Part # 556-ATSAM3U2CA-CU	Microchip Technology	ARM Microcontrollers - MCU 128K Flash, 36K SRAM 32-bit ARM Cortex M3 Learn More about Microchip Technology microchip sam3u mcus	Datasheet	4,419In Stock	$8.67 $8.34 $8.16 $8.11	Min.: 1 Mult.: 1	SMD/SMT	TFBGA-100	ARM Cortex M3	57 I/O	32 bit	12 bit
ARM Microcontrollers - MCU ARM Cortex-M3 32-bit 40 MHz 256 kB MCU EFM32JG1B100F256GM32-C0 Silicon Labs 1: $7.76 6,730In Stock	Mfr. Part # EFM32JG1B100F256GM32-C0 Mouser Part # 634-JG1B100F256GM32C	Silicon Labs	ARM Microcontrollers - MCU ARM Cortex-M3 32-bit 40 MHz 256 kB MCU Learn More about Silicon Labs silabs efm32 jade gecko mcu	Datasheet	6,730In Stock	$7.76 $5.90 $5.44 $4.94 View $4.69 $4.55 $4.49 $4.44 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	ARM Cortex M3	24 I/O	32 bit	12 bit
ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB EFM32LG230F256G-F-QFN64 Silicon Labs 1: $16.07 2,584In Stock	Mfr. Part # EFM32LG230F256G-F-QFN64 Mouser Part # 634-32LG230F256GFQFN	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	2,584In Stock	$16.07 $12.77 $11.74 $10.89 View $10.34 $10.14 $9.91 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-64	ARM Cortex M3	56 I/O	32 bit	12 bit
ARM Microcontrollers - MCU MCU,M3,120MHz,1MBMem/130kBRAM,QFP100 TMPM3HNF10BFG Toshiba 1: $18.73 1,795In Stock	Mfr. Part # TMPM3HNF10BFG Mouser Part # 757-TMPM3HNF10BFG	Toshiba	ARM Microcontrollers - MCU MCU,M3,120MHz,1MBMem/130kBRAM,QFP100 Learn More about Toshiba tmpm3h arm microcontrollers		1,795In Stock	$18.73 $15.52 $13.81 $13.49 View $12.80 $12.43 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	92 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32-Bit Cortex 64Kb Performance Line STM32F103VET6TR STMicroelectronics 1: $15.15 11,393In Stock	Mfr. Part # STM32F103VET6TR Mouser Part # 511-STM32F103VET6TR	STMicroelectronics	ARM Microcontrollers - MCU 32-Bit Cortex 64Kb Performance Line Learn More about STMicroelectronics stm32f1	Datasheet	11,393In Stock	Cut Tape $15.15 $13.03 $12.17 $11.78 View Reel $9.81 $11.66 $11.20 $9.81 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	LQFP-100	ARM Cortex M3	80 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 1024kB STM32F205RGT6 STMicroelectronics 1: $23.16 2,581In Stock	Mfr. Part # STM32F205RGT6 Mouser Part # 511-STM32F205RGT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 1024kB Learn More about STMicroelectronics stm32f2	Datasheet	2,581In Stock	$23.16 $18.27 $16.32 $15.36 View $15.29 $14.57 $14.43	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	51 I/O	32 bit	12 bit
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 32 Kbytes of Flash , 32 MHz CPU, USB STM32L151C6T6A STMicroelectronics 1: $7.88 12,803In Stock	Mfr. Part # STM32L151C6T6A Mouser Part # 511-STM32L151C6T6A	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	12,803In Stock	$7.88 $6.00 $5.24 $5.01 View $4.77 $4.61 $4.05 $3.74 $3.66	Min.: 1 Mult.: 1	SMD/SMT	LQFP-48	ARM Cortex M3	37 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32BIT CORTEX M3 128K Flash 20KB RAM STM32F103VBT6TR STMicroelectronics 1: $14.08 8,732In Stock	Mfr. Part # STM32F103VBT6TR Mouser Part # 511-STM32F103VBT6TR	STMicroelectronics	ARM Microcontrollers - MCU 32BIT CORTEX M3 128K Flash 20KB RAM Learn More about STMicroelectronics stm32f1	Datasheet	8,732In Stock	Cut Tape $14.08 $10.94 $9.68 $9.29 Reel $7.55 View $9.13 $8.61 $7.52 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	LQFP-100	ARM Cortex M3	100 I/O	32 bit	12 bit
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 512 Kbytes of Flash 32 MHz CPU, USB, 2xOp-amp STM32L152VET6 STMicroelectronics 1: $18.27 2,241In Stock	Mfr. Part # STM32L152VET6 Mouser Part # 511-STM32L152VET6	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	2,241In Stock	$18.27 $13.69 $12.61 $12.21 View $11.59 $10.77 $10.76	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	83 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 256kB flash, 64kB SRAM, USB, LQFP100 package LPC1765FBD100K NXP Semiconductors 1: $20.75 5,650In Stock	Mfr. Part # LPC1765FBD100K Mouser Part # 771-LPC1765FBD100K	NXP Semiconductors	ARM Microcontrollers - MCU 256kB flash, 64kB SRAM, USB, LQFP100 package Learn More about NXP Semiconductors nxp_lpc17xx	Datasheet	5,650In Stock	$20.75 $16.19 $15.13 $14.21 View $13.67 $13.39 $13.22 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	70 I/O	32 bit	12 bit
ARM Microcontrollers - MCU Ultra-low-power 32-bit Value Line Arm Cortex-M3 MCU 32 Kbytes of Flash 32 MHz CP STM32L100C6U6A STMicroelectronics 1: $7.52 8,021In Stock	Mfr. Part # STM32L100C6U6A Mouser Part # 511-STM32L100C6U6A	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power 32-bit Value Line Arm Cortex-M3 MCU 32 Kbytes of Flash 32 MHz CP Learn More about STMicroelectronics stm32l1	Datasheet	8,021In Stock	$7.52 $5.72 $5.00 $4.77 View $4.52 $4.33 $4.22 $4.16 Quote	Min.: 1 Mult.: 1	SMD/SMT	UFQFPN-48	ARM Cortex M3	37 I/O	32 bit	12 bit
ARM Microcontrollers - MCU ARM 32Bit Value Line 64-Pin 32kB Flash STM32F100RCT6B STMicroelectronics 1: $11.84 3,768In Stock	Mfr. Part # STM32F100RCT6B Mouser Part # 511-STM32F100RCT6B	STMicroelectronics	ARM Microcontrollers - MCU ARM 32Bit Value Line 64-Pin 32kB Flash Learn More about STMicroelectronics stm32f1	Datasheet	3,768In Stock	$11.84 $9.14 $8.05 $7.53 View $6.54 $6.41 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	51 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32BIT Cortex M3 128K 20KB RAM 2X12 ADC STM32F103VBT6 STMicroelectronics 1: $11.61 5,565In Stock	Mfr. Part # STM32F103VBT6 Mouser Part # 511-STM32F103VBT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 128K 20KB RAM 2X12 ADC Learn More about STMicroelectronics stm32f1	Datasheet	5,565In Stock	$11.61 $9.49 $8.84 $8.24 View $8.08 $7.46 $7.33	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	100 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32BIT Cortex M3 256kB Flash 100pin STM32F103VCT6 STMicroelectronics 1: $13.03 12,341In Stock	Mfr. Part # STM32F103VCT6 Mouser Part # 511-STM32F103VCT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 256kB Flash 100pin Learn More about STMicroelectronics stm32f1	Datasheet	12,341In Stock	$13.03 $10.64 $9.89 $9.19 View $9.00 $8.14 $7.92	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	80 I/O	32 bit	12 bit
ARM Microcontrollers - MCU Mainstream Perform ARM Cortex-M3 MCU STM32F103ZGT6TR STMicroelectronics 1: $26.54 1,456In Stock	Mfr. Part # STM32F103ZGT6TR Mouser Part # 511-STM32F103ZGT6TR	STMicroelectronics	ARM Microcontrollers - MCU Mainstream Perform ARM Cortex-M3 MCU Learn More about STMicroelectronics stm32f1	Datasheet	1,456In Stock	Cut Tape $26.54 $20.79 $19.27 $17.78 $17.15 Reel $15.88 MouseReel Available	Min.: 1 Mult.: 1 : 500	SMD/SMT	LQFP-144	ARM Cortex M3	112 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32BIT Cortex M3 128K FLASH 20KB RAM STM32F103RBT6 STMicroelectronics 1: $13.35 13,789In Stock	Mfr. Part # STM32F103RBT6 Mouser Part # 511-STM32F103RBT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 128K FLASH 20KB RAM Learn More about STMicroelectronics stm32f1	Datasheet	13,789In Stock	$13.35 $10.25 $9.14 $8.73 $8.22	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	64 I/O	32 bit	12 bit
ARM Microcontrollers - MCU Mainstream Performance line, Arm Cortex-M3 MCU 1 Mbyte of Flash 72 MHz CPU, moto STM32F103RGT6TR STMicroelectronics 1: $22.20 3,000In Stock 1,000Expected 2026-11-12	Mfr. Part # STM32F103RGT6TR Mouser Part # 511-STM32F103RGT6TR	STMicroelectronics	ARM Microcontrollers - MCU Mainstream Performance line, Arm Cortex-M3 MCU 1 Mbyte of Flash 72 MHz CPU, moto Learn More about STMicroelectronics stm32f1	Datasheet	3,000In Stock 1,000Expected 2026-11-12	Cut Tape $22.20 $17.40 $16.11 $14.88 View Reel $12.67 $14.34 $13.87 $12.67 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	LQFP-64	ARM Cortex M3	112 I/O	32 bit	12 bit
ARM Microcontrollers - MCU PSOC 5LP ANLOG 67MHZ,256K FLASH CY8C5468AXI-LP106 Infineon Technologies 1: $22.45 3,032In Stock	Mfr. Part # CY8C5468AXI-LP106 Mouser Part # 727-CY8C5468AXILP106	Infineon Technologies	ARM Microcontrollers - MCU PSOC 5LP ANLOG 67MHZ,256K FLASH Learn More about Infineon Technologies cypress psoc5lp	Datasheet	3,032In Stock	$22.45 $17.47 $15.80 $14.82 View $14.24 $13.39 $13.10 Quote	Min.: 1 Mult.: 1	SMD/SMT	TQFP-100	ARM Cortex M3	72 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32BIT Cortex M3 M/D Performance LINE STM32F103CBT7 STMicroelectronics 1: $12.70 7,593In Stock	Mfr. Part # STM32F103CBT7 Mouser Part # 511-STM32F103CBT7	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 M/D Performance LINE Learn More about STMicroelectronics stm32f1	Datasheet	7,593In Stock	$12.70 $9.82 $8.67 $8.31 View $7.93 $7.70 $7.69 $7.43	Min.: 1 Mult.: 1	SMD/SMT	LQFP-48	ARM Cortex M3	37 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32BIT Cortex 64/25 CONNECTIVITY LINE M3 STM32F105VCT6 STMicroelectronics 1: $13.62 15,102In Stock	Mfr. Part # STM32F105VCT6 Mouser Part # 511-STM32F105VCT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex 64/25 CONNECTIVITY LINE M3 Learn More about STMicroelectronics stm32f105	Datasheet	15,102In Stock	$13.62 $11.07 $10.32 $9.62 View $9.45 $9.09 $8.52 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	80 I/O	32 bit	12 bit
ARM Microcontrollers - MCU Hi-perf ARM Cortex M3 MCU 1 Mb STM32F205RGT7 STMicroelectronics 1: $20.04 3,972In Stock	Mfr. Part # STM32F205RGT7 Mouser Part # 511-STM32F205RGT7	STMicroelectronics	ARM Microcontrollers - MCU Hi-perf ARM Cortex M3 MCU 1 Mb Learn More about STMicroelectronics stm32f2	Datasheet	3,972In Stock	$20.04 $16.55 $15.44 $14.64 View $14.43 $14.00 $13.95	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	51 I/O	32 bit	12 bit
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 256 Kbytes of Flash 32 MHz CPU, USB, 2xOp-amp STM32L151CCU6 STMicroelectronics 1: $9.42 4,114In Stock	Mfr. Part # STM32L151CCU6 Mouser Part # 511-STM32L151CCU6	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	4,114In Stock	$9.42 $7.65 $7.21 $6.74 View $6.52 $6.44 $6.42	Min.: 1 Mult.: 1	SMD/SMT	UFQPFN-48	ARM Cortex M3	37 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 256KB Flash 64KBSRAM PSoC 5LP CY8C5287AXI-LP095 Infineon Technologies 1: $18.48 10,582In Stock	Mfr. Part # CY8C5287AXI-LP095 Mouser Part # 727-CY8C5287AXILP095	Infineon Technologies	ARM Microcontrollers - MCU 256KB Flash 64KBSRAM PSoC 5LP Learn More about Infineon Technologies cypress psoc5lp	Datasheet	10,582In Stock	$18.48 $15.06 $14.13 $13.25 View $12.99 $12.34 $12.02	Min.: 1 Mult.: 1	SMD/SMT	TQFP-100	ARM Cortex M3	62 I/O	32 bit	12 bit
SoC FPGA SmartFusion2 SoC FPGA, ARM Cortex-M3, 12KLEs M2S010-VFG256I Microchip Technology 1: $63.52 366In Stock	Mfr. Part # M2S010-VFG256I Mouser Part # 494-M2S010-VFG256I	Microchip Technology	SoC FPGA SmartFusion2 SoC FPGA, ARM Cortex-M3, 12KLEs Learn More about Microchip Technology microchip smartfusion2 fpga	Datasheet	366In Stock	$63.52 $62.58 $60.83 Quote Quote	Min.: 1 Mult.: 1	SMD/SMT	VFBGA-256	ARM Cortex M3	138 I/O