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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 Leopard Gecko MCU IC 256KB EFM32LG232F256G-F-QFP64 Silicon Labs 1: $11.36 1,600In Stock NRND	Mfr. Part # EFM32LG232F256G-F-QFP64 Mouser Part # 634-32LG232F256GFQFP NRND	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	1,600In Stock	$11.36 $8.87 $8.24 $7.56 View $7.32 $7.04 $7.01 Quote	Min.: 1 Mult.: 1	SMD/SMT	TQFP-64	ARM Cortex M3	53 I/O	32 bit	12 bit
ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB EFM32LG332F256G-F-QFP64 Silicon Labs 1: $11.90 1,059In Stock NRND	Mfr. Part # EFM32LG332F256G-F-QFP64 Mouser Part # 634-32LG332F256GFQFP NRND	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	1,059In Stock	$11.90 $9.32 $8.67 $7.97 View $7.89 $7.42 $7.26 Quote	Min.: 1 Mult.: 1	SMD/SMT	TQFP-64	ARM Cortex M3	50 I/O	32 bit	12 bit
SoC FPGA SmartFusion2 SoC FPGA, ARM Cortex-M3, 86KLEs M2S090TS-1FGG484I Microchip Technology 1: $346.00 74In Stock	Mfr. Part # M2S090TS-1FGG484I Mouser Part # 494-M2S090TS1FGG484I	Microchip Technology	SoC FPGA SmartFusion2 SoC FPGA, ARM Cortex-M3, 86KLEs Learn More about Microchip Technology microchip smartfusion2 fpga	Datasheet	74In Stock	$346.00 View Quote	Min.: 1 Mult.: 1	SMD/SMT	FPBGA-484	ARM Cortex M3
ARM Microcontrollers - MCU 32BIT CORTEX M3 48PINS 64KB STM32F100C8T6B STMicroelectronics 1: $5.39 20,746In Stock	Mfr. Part # STM32F100C8T6B Mouser Part # 511-STM32F100C8T6B	STMicroelectronics	ARM Microcontrollers - MCU 32BIT CORTEX M3 48PINS 64KB Learn More about STMicroelectronics stm32f1	Datasheet	20,746In Stock	$5.39 $4.10 $3.59 $3.43 View $3.26 $3.15	Min.: 1 Mult.: 1 Max.: 730	SMD/SMT	LQFP-48	ARM Cortex M3	37 I/O	32 bit	12 bit
ARM Microcontrollers - MCU ARM 32Bit Value Line 64-Pin 32kB Flash STM32F100RCT6BTR STMicroelectronics 1: $8.09 5,901In Stock	Mfr. Part # STM32F100RCT6BTR Mouser Part # 511-STM32F100RCT6BTR	STMicroelectronics	ARM Microcontrollers - MCU ARM 32Bit Value Line 64-Pin 32kB Flash Learn More about STMicroelectronics stm32f1	Datasheet	5,901In Stock	Cut Tape $8.09 $6.22 $5.59 $5.24 View Reel $4.74 $5.12 $4.84 $4.74 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	LQFP-64	ARM Cortex M3	51 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32BIT Cortex M3 64KB 10KB RAM 1X12 ADC STM32F101R8T6 STMicroelectronics 1: $6.93 4,012In Stock	Mfr. Part # STM32F101R8T6 Mouser Part # 511-STM32F101R8T6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 64KB 10KB RAM 1X12 ADC Learn More about STMicroelectronics stm32f1	Datasheet	4,012In Stock	$6.93 $5.32 $4.67 $4.36 View $4.34 $4.09 $4.08	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	64 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32BIT Cortex M3 128K MED Performance LN STM32F103CBT6 STMicroelectronics 1: $8.91 4,263In Stock 1,500Expected 1/25/2027	Mfr. Part # STM32F103CBT6 Mouser Part # 511-STM32F103CBT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 128K MED Performance LN Learn More about STMicroelectronics stm32f1	Datasheet	4,263In Stock 1,500Expected 1/25/2027	$8.91 $6.68 $6.37 $5.53 View $5.28 $5.01 $4.89 $4.74	Min.: 1 Mult.: 1	SMD/SMT	LQFP-48	ARM Cortex M3	37 I/O	32 bit	12 bit
ARM Microcontrollers - MCU Mainstream Performance line, Arm Cortex-M3 MCU 128 Kbytes of Flash 72 MHz CPU, m STM32F103CBU6TR STMicroelectronics 1: $8.57 4,991Expected 11/12/2026	Mfr. Part # STM32F103CBU6TR Mouser Part # 511-STM32F103CBU6TR	STMicroelectronics	ARM Microcontrollers - MCU Mainstream Performance line, Arm Cortex-M3 MCU 128 Kbytes of Flash 72 MHz CPU, m Learn More about STMicroelectronics stm32f1	Datasheet	4,991Expected 11/12/2026	Cut Tape $8.57 $6.54 $5.82 $5.47 View Reel $4.63 $5.33 $4.87 $4.82 $4.63 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	UFQFPN-48	ARM Cortex M3	37 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32BIT Cortex M3 USB CAN 7 TMRS 2 ADCS STM32F103RBT6TR STMicroelectronics 1: $8.79 18,679In Stock	Mfr. Part # STM32F103RBT6TR Mouser Part # 511-STM32F103RBT6TR	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 USB CAN 7 TMRS 2 ADCS Learn More about STMicroelectronics stm32f1	Datasheet	18,679In Stock	Cut Tape $8.79 $6.80 $6.00 $5.75 Reel $4.81 View $5.63 $5.33 $4.49 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	LQFP-64	ARM Cortex M3	51 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32BIT Cortex M3 H/D 256 to 512 USB/CAN STM32F103RCT6 STMicroelectronics 1: $9.54 16,741In Stock	Mfr. Part # STM32F103RCT6 Mouser Part # 511-STM32F103RCT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 H/D 256 to 512 USB/CAN Learn More about STMicroelectronics stm32f1	Datasheet	16,741In Stock	$9.54 $7.66 $6.78 $6.19 View $6.05 $5.98 $5.90 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 M3 72MHz 64pins STM32F103RCT6TR STMicroelectronics 1: $9.83 11,424In Stock	Mfr. Part # STM32F103RCT6TR Mouser Part # 511-STM32F103RCT6TR	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 M3 72MHz 64pins Learn More about STMicroelectronics stm32f1	Datasheet	11,424In Stock	Cut Tape $9.83 $7.72 $6.99 $6.55 $6.40 Reel $6.40 MouseReel Available	Min.: 1 Mult.: 1 Max.: 480 : 1,000	SMD/SMT	LQFP-64	ARM Cortex M3	51 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32BIT Cortex M3 H/D Perf Line USB CAN STM32F103RCT7 STMicroelectronics 1: $10.13 2,805In Stock	Mfr. Part # STM32F103RCT7 Mouser Part # 511-STM32F103RCT7	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 H/D Perf Line USB CAN Learn More about STMicroelectronics stm32f1	Datasheet	2,805In Stock	$10.13 $8.01 $7.42 $6.74 View $6.58 $6.24 $6.16 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	51 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32-Bit Cortex 64Kb Performance Line STM32F103RCY6TR STMicroelectronics 1: $10.43 3,957In Stock	Mfr. Part # STM32F103RCY6TR Mouser Part # 511-STM32F103RCY6TR	STMicroelectronics	ARM Microcontrollers - MCU 32-Bit Cortex 64Kb Performance Line Learn More about STMicroelectronics stm32f1	Datasheet	3,957In Stock	Cut Tape $10.43 $8.06 $7.69 $6.67 View Reel $5.87 $6.61 $6.14 $5.87 Quote MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	WLCSP-64	ARM Cortex M3	51 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32-Bit Cortex 64Kb Performance Line STM32F103VCT6TR STMicroelectronics 1: $10.73 29,181In Stock	Mfr. Part # STM32F103VCT6TR Mouser Part # 511-STM32F103VCT6TR	STMicroelectronics	ARM Microcontrollers - MCU 32-Bit Cortex 64Kb Performance Line Learn More about STMicroelectronics stm32f1	Datasheet	29,181In Stock	Cut Tape $10.73 $8.53 $7.67 $7.26 View Reel $6.59 $7.10 $6.70 $6.59 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 ARM Cortex M3 32-Bit 1Mbyte Flash 72 MHz STM32F103ZGT6 STMicroelectronics 1: $17.69 4,729In Stock	Mfr. Part # STM32F103ZGT6 Mouser Part # 511-STM32F103ZGT6	STMicroelectronics	ARM Microcontrollers - MCU ARM Cortex M3 32-Bit 1Mbyte Flash 72 MHz Learn More about STMicroelectronics stm32f1	Datasheet	4,729In Stock	$17.69 $13.85 $12.44 $11.88 View $11.37 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-144	ARM Cortex M3	112 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32-Bit ARM Cortex 128kb Connectivity STM32F105RBT6TR STMicroelectronics 1: $8.87 9,129In Stock	Mfr. Part # STM32F105RBT6TR Mouser Part # 511-STM32F105RBT6TR	STMicroelectronics	ARM Microcontrollers - MCU 32-Bit ARM Cortex 128kb Connectivity Learn More about STMicroelectronics stm32f1	Datasheet	9,129In Stock	Cut Tape $8.87 $6.87 $6.06 $5.81 View Reel $5.36 $5.75 $5.50 $5.36 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	LQFP-64	ARM Cortex M3	51 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32BIT Cortex 64/25 CONNECTIVITY LINE M3 STM32F105RCT6 STMicroelectronics 1: $8.55 12,068In Stock	Mfr. Part # STM32F105RCT6 Mouser Part # 511-STM32F105RCT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex 64/25 CONNECTIVITY LINE M3 Learn More about STMicroelectronics stm32f105	Datasheet	12,068In Stock	$8.55 $6.86 $6.45 $5.96 View $5.85 $5.61 $5.33	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	51 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32BIT Cortex 64/25 CONNECTIVITY LINE M3 STM32F107RCT6 STMicroelectronics 1: $11.30 3,123In Stock	Mfr. Part # STM32F107RCT6 Mouser Part # 511-STM32F107RCT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex 64/25 CONNECTIVITY LINE M3 Learn More about STMicroelectronics STM32F107	Datasheet	3,123In Stock	$11.30 $8.82 $7.82 $7.33 View $6.93 $6.83	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	51 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 128kB STM32F205RBT6 STMicroelectronics 1: $10.58 3,495In Stock	Mfr. Part # STM32F205RBT6 Mouser Part # 511-STM32F205RBT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 128kB Learn More about STMicroelectronics stm32f2	Datasheet	3,495In Stock	$10.58 $8.24 $7.54 $6.82 View $6.57 $5.94 $5.79 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	51 I/O	32 bit	12 bit
ARM Microcontrollers - MCU EMBEDDED_POWER TLE9879QTW40XUMA1 Infineon Technologies 1: $8.35 5,611In Stock	Mfr. Part # TLE9879QTW40XUMA1 Mouser Part # 726-TLE9879QTW40XUMA	Infineon Technologies	ARM Microcontrollers - MCU EMBEDDED_POWER Learn More about Infineon Technologies infineon tle987	Datasheet	5,611In Stock	Cut Tape $8.35 $6.45 $5.70 $5.39 View Reel $4.55 $5.26 $4.84 $4.79 $4.55 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	TQFP-48	ARM Cortex M3	10 I/O	32 bit	10 bit
ARM Microcontrollers - MCU 128Kb Flash 32KbSRAM PSoC CY8C5267LTI-LP089 Infineon Technologies 1: $12.64 8,408In Stock	Mfr. Part # CY8C5267LTI-LP089 Mouser Part # 727-CY8C5267LTILP089	Infineon Technologies	ARM Microcontrollers - MCU 128Kb Flash 32KbSRAM PSoC Learn More about Infineon Technologies cypress psoc5lp	Datasheet	8,408In Stock	$12.64 $9.93 $9.24 $8.57 View $8.21 $7.86 $7.72 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-68	ARM Cortex M3	48 I/O	32 bit	12 bit
ARM Microcontrollers - MCU MM-LEGACY PSOC135 CY8C5488FNI-LP212T Infineon Technologies 1: $17.96 1,997In Stock	Mfr. Part # CY8C5488FNI-LP212T Mouser Part # 727-CY8C5488FNIP212T	Infineon Technologies	ARM Microcontrollers - MCU MM-LEGACY PSOC135 Learn More about Infineon Technologies cypress psoc 5lp socs	Datasheet	1,997In Stock	Cut Tape $17.96 $13.65 $13.08 $11.53 View Reel $10.34 $10.96 $10.60 $10.35 $10.34 Quote	Min.: 1 Mult.: 1 : 2,000	SMD/SMT	WLCSP-99	ARM Cortex M3	62 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 256K Flash 64K SRAM PSoC 5LP CY8C5868AXI-LP035 Infineon Technologies 1: $29.69 2,069In Stock 11,700On Order	Mfr. Part # CY8C5868AXI-LP035 Mouser Part # 727-CY8C5868AXILP035	Infineon Technologies	ARM Microcontrollers - MCU 256K Flash 64K SRAM PSoC 5LP Learn More about Infineon Technologies cypress psoc5lp	Datasheet	2,069In Stock 11,700On Order On Order Ship Dates Mfr. #: CY8C5868AXI-LP035 Stock: 2,069 Can Ship Immediately On Order: 4,500 Expected 12/31/2026 7,200 Expected 4/15/2027 Factory Lead-Time: 18 Weeks	$29.69 $25.43 $23.14 $21.73 View $21.24 Quote	Min.: 1 Mult.: 1	SMD/SMT	TQFP-100	ARM Cortex M3	62 I/O	32 bit	12 bit
ARM Microcontrollers - MCU 256KB Flash 64KBSRAM PSoC 5LP CY8C5888LTI-LP097 Infineon Technologies 1: $29.55 3,514In Stock	Mfr. Part # CY8C5888LTI-LP097 Mouser Part # 727-CY8C5888LTILP097	Infineon Technologies	ARM Microcontrollers - MCU 256KB Flash 64KBSRAM PSoC 5LP Learn More about Infineon Technologies cypress psoc5lp	Datasheet	3,514In Stock	$29.55 $23.43 $22.21 $20.76 View $20.02 $19.56 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-68	ARM Cortex M3	38 I/O	32 bit	12 bit
ARM Microcontrollers - MCU Scalable Mainstream 32-bit Microcontroller (MCU) based on ARM Cortex-M3 Core LPC1756FBD80Y NXP Semiconductors 1: $13.99 2,432In Stock	Mfr. Part # LPC1756FBD80Y Mouser Part # 771-LPC1756FBD80Y	NXP Semiconductors	ARM Microcontrollers - MCU Scalable Mainstream 32-bit Microcontroller (MCU) based on ARM Cortex-M3 Core Learn More about NXP Semiconductors nxp_lpc17xx	Datasheet	2,432In Stock	Cut Tape $13.99 $10.63 $10.19 $8.98 $8.72 Reel $7.40	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	LQFP-80	ARM Cortex M3	52 I/O	32 bit	12 bit