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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 (USD) 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 Mainstream Performance line, Arm Cortex-M3 MCU 1 Mbyte of Flash 72 MHz CPU, moto STM32F103RGT6TR STMicroelectronics 1: $20.44 2,000In Stock 2,000Expected 11/28/2026	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	2,000In Stock 2,000Expected 11/28/2026	Cut Tape $20.44 $16.04 $14.61 $13.74 View Reel $11.48 $13.48 $12.70 $11.48 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 32BIT Cortex M3 512B Flash 100pin STM32F103VET6 STMicroelectronics 1: $14.42 26,072In Stock	Mfr. Part # STM32F103VET6 Mouser Part # 511-STM32F103VET6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 512B Flash 100pin Learn More about STMicroelectronics stm32f1	Datasheet	26,072In Stock	$14.42 $12.00 $10.66 $10.19 View $10.02 $9.75 $9.62 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	80 I/O	32 bit	12 bit
ARM Microcontrollers - MCU Mainstream ARM M3 1Mb 72 MHz USB CAN STM32F103VGT6 STMicroelectronics 1: $17.24 11,012In Stock	Mfr. Part # STM32F103VGT6 Mouser Part # 511-STM32F103VGT6	STMicroelectronics	ARM Microcontrollers - MCU Mainstream ARM M3 1Mb 72 MHz USB CAN Learn More about STMicroelectronics stm32f1	Datasheet	11,012In Stock	$17.24 $13.96 $13.17 $12.74 View $12.27 $12.10 $11.35	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	112 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32BIT Cortex M3 512KB Perform Line STM32F103ZEH7 STMicroelectronics 1: $21.07 2,525In Stock	Mfr. Part # STM32F103ZEH7 Mouser Part # 511-STM32F103ZEH7	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 512KB Perform Line Learn More about STMicroelectronics stm32f1	Datasheet	2,525In Stock	$21.07 $16.58 $15.08 $14.21 View $13.75 $13.38 $12.10 Quote	Min.: 1 Mult.: 1	SMD/SMT	BGA-144	ARM Cortex M3	112 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 128k Flash, 16k RAM, AES EFM32G222F128G-E-QFP48R Silicon Labs 1: $10.05 3,414In Stock	Mfr. Part # EFM32G222F128G-E-QFP48R Mouser Part # 634-32G222128GEFP48R	Silicon Labs	ARM Microcontrollers - MCU 128k Flash, 16k RAM, AES	Datasheet	3,414In Stock	Cut Tape $10.05 $7.75 $7.15 $6.54 Reel $5.86 View $6.06 $5.58	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	TQFP-48	ARM Cortex M3	37 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32BIT CORTEX M3 128K Flash 20KB RAM STM32F103VBT6TR STMicroelectronics 1: $12.71 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 $12.71 $9.88 $8.74 $8.39 Reel $6.79 View $8.24 $7.77 $6.71 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: $16.22 2,242In 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	2,242In Stock	$16.22 $12.18 $11.22 $10.84 View $10.28 $9.56 $9.54	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: $18.76 5,800In 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	5,800In Stock	$18.76 $15.03 $13.96 $13.44 View $12.62 $12.32 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	70 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 512kB flash, 64kB SRAM, Ethernet, USB, TFBGA100 package LPC1768FET100,551 NXP Semiconductors 1: $23.35 6,533In Stock	Mfr. Part # LPC1768FET100,551 Mouser Part # 771-LPC1768FET100551	NXP Semiconductors	ARM Microcontrollers - MCU 512kB flash, 64kB SRAM, Ethernet, USB, TFBGA100 package Learn More about NXP Semiconductors nxp_lpc17xx	Datasheet	6,533In Stock	$23.35 $18.55 $16.63 $16.03 View $15.38 $14.70 $14.17 Quote	Min.: 1 Mult.: 1	SMD/SMT	TFBGA-100	ARM Cortex M3	70 I/O	32 bit	12 bit
ARM Microcontrollers - MCU High Performance 32-bit Microcontroller (MCU) based on ARM Cortex-M3 Core LPC1857JBD208E NXP Semiconductors 1: $27.82 968In Stock	Mfr. Part # LPC1857JBD208E Mouser Part # 771-LPC1857JBD208E	NXP Semiconductors	ARM Microcontrollers - MCU High Performance 32-bit Microcontroller (MCU) based on ARM Cortex-M3 Core Learn More about NXP Semiconductors nxp lpc1830 lpc1850 lpc1857 mcus	Datasheet	968In Stock	$27.82 $25.06 $21.84 $20.84 View $20.59 $20.10	Min.: 1 Mult.: 1	SMD/SMT	LQFP-208	ARM Cortex M3	142 I/O	32 bit	2 x 10 bit
ARM Microcontrollers - MCU Tiny Gecko MCU IC EFM32TG210F32-D-QFN32 Silicon Labs 1: $7.01 1,674In Stock	Mfr. Part # EFM32TG210F32-D-QFN32 Mouser Part # 634-EFM32TG210F32-D	Silicon Labs	ARM Microcontrollers - MCU Tiny Gecko MCU IC Learn More about Silicon Labs energymicroefm32tg	Datasheet	1,674In Stock	$7.01 $5.51 $4.93 $4.60 View $4.25 $4.13 $4.12	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	ARM Cortex M3	24 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32-Bit Arm Cortex M3 128kb UltralowPower STM32L151CBT6 STMicroelectronics 1: $10.80 10,299In Stock NRND	Mfr. Part # STM32L151CBT6 Mouser Part # 511-STM32L151CBT6 NRND	STMicroelectronics	ARM Microcontrollers - MCU 32-Bit Arm Cortex M3 128kb UltralowPower Learn More about STMicroelectronics stm32l1	Datasheet	10,299In Stock	$10.80 $8.35 $7.36 $7.05 View $6.73 $6.53 $5.94 $5.81 Quote	Min.: 1 Mult.: 1	SMD/SMT		ARM Cortex M3	37 I/O	32 bit	12 bit
ARM Microcontrollers - MCU PSOC 5LP PERFO ANLOG 67MHZ,256K CY8C5668AXI-LP013 Infineon Technologies 1: $32.14 123In Stock	Mfr. Part # CY8C5668AXI-LP013 Mouser Part # 727-CY8C5668AXILP013	Infineon Technologies	ARM Microcontrollers - MCU PSOC 5LP PERFO ANLOG 67MHZ,256K Learn More about Infineon Technologies cypress psoc5lp	Datasheet	123In Stock	$32.14 $27.40 $27.18 $27.17	Min.: 1 Mult.: 1	SMD/SMT	TQFP-100	ARM Cortex M3	72 I/O	32 bit	12 bit
ARM Microcontrollers - MCU BGA100,GREEN IND TEMP, MRLA ATSAM3X8CA-CU Microchip Technology 1: $15.50 256In Stock	Mfr. Part # ATSAM3X8CA-CU Mouser Part # 556-ATSAM3X8CA-CU	Microchip Technology	ARM Microcontrollers - MCU BGA100,GREEN IND TEMP, MRLA Learn More about Microchip Technology microchip sam3x mcu	Datasheet	256In Stock	$15.50 $14.08 $12.75 $12.74	Min.: 1 Mult.: 1	SMD/SMT	LFBGA-100	ARM Cortex M3	63 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 128k Flash, 16k RAM, AES EFM32G232F128G-E-QFP64R Silicon Labs 1: $10.23 549In Stock	Mfr. Part # EFM32G232F128G-E-QFP64R Mouser Part # 634-32G232128GEFP64R	Silicon Labs	ARM Microcontrollers - MCU 128k Flash, 16k RAM, AES	Datasheet	549In Stock	Cut Tape $10.23 $8.07 $7.42 $6.81 $6.63 Reel $5.81	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	TQFP-64	ARM Cortex M3	53 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 512k Flash, 128k RAM, USB, AES EFM32GG380F512G-E-QFP100R Silicon Labs 1: $21.78 2,100In Stock	Mfr. Part # EFM32GG380F512G-E-QFP100R Mouser Part # 634-32GG380F512-E-T	Silicon Labs	ARM Microcontrollers - MCU 512k Flash, 128k RAM, USB, AES Learn More about Silicon Labs energymicro efm32giant	Datasheet	2,100In Stock	Cut Tape $21.78 $17.32 $15.77 $14.77 View Reel $12.77 $14.66 $13.81 $12.77	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	LQFP-100	ARM Cortex M3	81 I/O	32 bit	12 bit
ARM Microcontrollers - MCU PSOC 5LP ANALOG LITE, 256K FLASH CY8C5468LTI-LP026 Infineon Technologies 1: $18.94 1,371In Stock	Mfr. Part # CY8C5468LTI-LP026 Mouser Part # 727-CY8C5468LTILP026	Infineon Technologies	ARM Microcontrollers - MCU PSOC 5LP ANALOG LITE, 256K FLASH Learn More about Infineon Technologies cypress psoc5lp	Datasheet	1,371In Stock	$18.94 $14.92 $13.33 $12.82 View $12.27 $11.79 $11.40	Min.: 1 Mult.: 1	SMD/SMT	QFN-68	ARM Cortex M3	48 I/O	32 bit	12 bit
ARM Microcontrollers - MCU PSOC 5LP PERFO ANLOG 67MHZ, 64K CY8C5666AXI-LP004 Infineon Technologies 1: $24.35 623In Stock	Mfr. Part # CY8C5666AXI-LP004 Mouser Part # 727-CY8C5666AXILP004	Infineon Technologies	ARM Microcontrollers - MCU PSOC 5LP PERFO ANLOG 67MHZ, 64K Learn More about Infineon Technologies cypress psoc5lp	Datasheet	623In Stock	$24.35 $19.34 $16.81 $16.29 View $16.26 $14.82 $14.78 Quote	Min.: 1 Mult.: 1	SMD/SMT	TQFP-100	ARM Cortex M3	72 I/O	32 bit	12 bit
ARM Microcontrollers - MCU ARM Cortex-M3 32-bit 40 MHz 1024 kB MCU EFM32JG12B500F1024GM48-C Silicon Labs 1: $12.88 982In Stock	Mfr. Part # EFM32JG12B500F1024GM48-C Mouser Part # 634-JG12B500FGM48C	Silicon Labs	ARM Microcontrollers - MCU ARM Cortex-M3 32-bit 40 MHz 1024 kB MCU Learn More about Silicon Labs silabs efm32 jade gecko mcu	Datasheet	982In Stock	$12.88 $10.27 $9.27 $8.72 View $8.29 $7.97 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-48	ARM Cortex M3	33 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 5.50 V, PSoC 5 CapSense Plus CY8C5467AXI-LP108 Infineon Technologies 1: $18.94 861In Stock	Mfr. Part # CY8C5467AXI-LP108 Mouser Part # 727-CY8C5467AXILP108	Infineon Technologies	ARM Microcontrollers - MCU 5.50 V, PSoC 5 CapSense Plus Learn More about Infineon Technologies cypress psoc5lp	Datasheet	861In Stock	$18.94 $14.92 $12.90 $12.47 View $12.06 $10.86	Min.: 1 Mult.: 1	SMD/SMT	TQFP-100	ARM Cortex M3	72 I/O	32 bit	12 bit
ARM Microcontrollers - MCU MM-LEGACY MM CY9BF618TPMC-GK7E1 Infineon Technologies 1: $24.56 280In Stock	Mfr. Part # CY9BF618TPMC-GK7E1 Mouser Part # 727-C9BF618TPMCGK7E1	Infineon Technologies	ARM Microcontrollers - MCU MM-LEGACY MM	Datasheet	280In Stock	$24.56 $19.84 $19.02 $16.76 View $15.99 $15.18 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-176	ARM Cortex M3	154 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 256KB Flash 64KBSRAM PSoC 5LP CY8C5288LTI-LP090 Infineon Technologies 1: $19.24 253In Stock 520Expected 11/20/2026	Mfr. Part # CY8C5288LTI-LP090 Mouser Part # 727-CY8C5288LTILP090	Infineon Technologies	ARM Microcontrollers - MCU 256KB Flash 64KBSRAM PSoC 5LP Learn More about Infineon Technologies cypress psoc5lp	Datasheet	253In Stock 520Expected 11/20/2026	$19.24 $15.18 $13.55 $13.04 View $12.49 $11.90 $11.61 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-68	ARM Cortex M3	38 I/O	32 bit	12 bit
ARM Microcontrollers - MCU QFP100,GREEN IND TEMP, MRL A ATSAM3A4CA-AU Microchip Technology 1: $14.05 334In Stock	Mfr. Part # ATSAM3A4CA-AU Mouser Part # 556-ATSAM3A4CA-AU	Microchip Technology	ARM Microcontrollers - MCU QFP100,GREEN IND TEMP, MRL A Learn More about Microchip Technology microchip sam3a mcu	Datasheet	334In Stock	$14.05 $13.69 $12.87 $12.83 $11.95	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	63 I/O	32 bit	12 bit
ARM Microcontrollers - MCU LQFP,Green,IND TEMP,MRL B ATSAM3S1BB-AU Microchip Technology 1: $5.01 Non-Stocked Lead-Time 12 Weeks	Mfr. Part # ATSAM3S1BB-AU Mouser Part # 556-ATSAM3S1BB-AU	Microchip Technology	ARM Microcontrollers - MCU LQFP,Green,IND TEMP,MRL B Learn More about Microchip Technology microchip sam3s mcu	Datasheet	Non-Stocked Lead-Time 12 Weeks	$5.01 $4.59 $4.15	Min.: 1 Mult.: 1	SMD/SMT	QFP-64	ARM Cortex M3	47 I/O	32 bit	12 bit
ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB EFM32LG230F128G-F-QFN64R Silicon Labs 1: $12.86 2,650In Stock	Mfr. Part # EFM32LG230F128G-F-QFN64R Mouser Part # 634-32LG230F128GFQFR	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 128KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	2,650In Stock	Cut Tape $12.86 $10.00 $9.28 $8.50 View Reel $7.29 $8.06 $7.90 $7.72 $7.29 Quote	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	QFN-64	ARM Cortex M3	56 I/O	32 bit	12 bit