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ARM Cortex M3 Core Microcontrollers - MCU

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (PEN) 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 QFP144,GREEN IND TEMP, MRL A ATSAM3X4EA-AU Microchip Technology 1: S/ 51.19 1,227In Stock	Mfr. Part # ATSAM3X4EA-AU Mouser Part # 556-ATSAM3X4EA-AU	Microchip Technology	ARM Microcontrollers - MCU QFP144,GREEN IND TEMP, MRL A Learn More about Microchip Technology microchip sam3x mcu	Datasheet	1,227In Stock	S/ 51.19 S/ 46.55 S/ 42.12 S/ 42.00	Min.: 1 Mult.: 1	SMD/SMT	LQFP-144	ARM Cortex M3	32 bit	84 MHz	256 kB	64 kB	12 bit	103 I/O	1.62 V	1.95 V	+ 85 C	Tray
ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB EFM32LG842F256G-F-QFP64R Silicon Labs 1: S/ 45.97 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 S/ 45.97 S/ 36.01 S/ 33.51 S/ 30.75 View Reel S/ 28.03 S/ 30.48 S/ 28.69 S/ 28.03 Quote	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	TQFP-64	ARM Cortex M3	32 bit	48 MHz	256 kB	32 kB	12 bit	53 I/O	1.98 V	3.8 V	+ 85 C	Reel, Cut Tape
ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB EFM32LG230F256G-F-QFN64 Silicon Labs 1: S/ 43.44 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	S/ 43.44 S/ 34.53 S/ 31.72 S/ 29.43 View S/ 27.95 S/ 27.40 S/ 26.78 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-64	ARM Cortex M3	32 bit	48 MHz	256 kB	32 kB	12 bit	56 I/O	1.98 V	3.8 V	+ 85 C	Tray
ARM Microcontrollers - MCU ARM Cortex-M3 32-bit 40 MHz 256 kB MCU EFM32JG1B100F256GM32-C0 Silicon Labs 1: S/ 20.98 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	S/ 20.98 S/ 15.96 S/ 14.71 S/ 13.35 View S/ 12.69 S/ 12.30 S/ 12.14 S/ 11.99 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	ARM Cortex M3	32 bit	40 MHz	256 kB	32 kB	12 bit	24 I/O	1.85 V	3.8 V	+ 85 C	Tray
ARM Microcontrollers - MCU 128K Flash, 36K SRAM 32-bit ARM Cortex M3 ATSAM3U2CA-CU Microchip Technology 1: S/ 23.67 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	S/ 23.67 S/ 23.63 S/ 22.54 S/ 22.07 S/ 21.91	Min.: 1 Mult.: 1	SMD/SMT	TFBGA-100	ARM Cortex M3	32 bit	96 MHz	128 kB	36 kB	12 bit	57 I/O	1.62 V	1.95 V	+ 85 C	Tray
ARM Microcontrollers - MCU QFP100,GREEN IND TEMP, MRLA ATSAM3X8CA-AU Microchip Technology 1: S/ 43.79 1,601In Stock	Mfr. Part # ATSAM3X8CA-AU Mouser Part # 556-ATSAM3X8CA-AU	Microchip Technology	ARM Microcontrollers - MCU QFP100,GREEN IND TEMP, MRLA Learn More about Microchip Technology microchip sam3x mcu	Datasheet	1,601In Stock	S/ 43.79 S/ 39.90 S/ 39.43 S/ 36.08	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	32 bit	84 MHz	512 kB	64 kB	12 bit	63 I/O	1.62 V	1.95 V	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT Cortex M3 512B Flash 100pin STM32F103VET6 STMicroelectronics 1: S/ 43.17 25,653In Stock	Mfr. Part # STM32F103VET6 Mouser Part # 511-STM32F103VET6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 512B Flash 100pin Learn More about STMicroelectronics stm32f1	Datasheet	25,653In Stock	S/ 43.17 S/ 35.93 S/ 31.92 S/ 30.52 View S/ 30.01 S/ 29.19 S/ 28.80 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	32 bit	72 MHz	512 kB	64 kB	12 bit	80 I/O	2 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Mainstream ARM M3 1Mb 72 MHz USB CAN STM32F103VGT6 STMicroelectronics 1: S/ 51.61 11,010In 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	11,010In Stock	S/ 51.61 S/ 41.81 S/ 39.43 S/ 38.15 View S/ 36.75 S/ 36.24 S/ 33.98	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	32 bit	72 MHz	1 MB	96 kB	12 bit	112 I/O	2 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT Cortex M3 512KB Perform Line STM32F103ZEH7 STMicroelectronics 1: S/ 63.10 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	S/ 63.10 S/ 49.63 S/ 45.15 S/ 42.55 View S/ 41.18 S/ 40.05 S/ 36.24 Quote	Min.: 1 Mult.: 1	SMD/SMT	BGA-144	ARM Cortex M3	32 bit	72 MHz	512 kB	64 kB	12 bit	112 I/O	2 V	3.6 V	+ 105 C	Tray
ARM Microcontrollers - MCU 128k Flash, 16k RAM, AES EFM32G222F128G-E-QFP48R Silicon Labs 1: S/ 30.09 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 S/ 30.09 S/ 23.20 S/ 21.41 S/ 19.58 Reel S/ 17.56 View S/ 18.14 S/ 16.70	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	TQFP-48	ARM Cortex M3	32 bit	32 MHz	128 kB	16 kB	12 bit	37 I/O	1.98 V	3.8 V	+ 85 C	Reel, Cut Tape
ARM Microcontrollers - MCU 5.50 V, PSoC 5 CapSense Plus CY8C5668AXI-LP034 Infineon Technologies 1: S/ 105.29 2,442In Stock	Mfr. Part # CY8C5668AXI-LP034 Mouser Part # 727-CY8C5668AXILP034	Infineon Technologies	ARM Microcontrollers - MCU 5.50 V, PSoC 5 CapSense Plus Learn More about Infineon Technologies cypress psoc5lp	Datasheet	2,442In Stock	S/ 105.29 S/ 86.72 S/ 77.62 S/ 75.16 View S/ 68.70 S/ 68.66	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 32BIT Cortex M3 128K FLASH 20KB RAM STM32F103RBT6 STMicroelectronics 1: S/ 36.08 13,785In 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	13,785In Stock	S/ 36.08 S/ 27.71 S/ 24.72 S/ 23.59 S/ 22.23	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	72 MHz	128 kB	20 kB	12 bit	64 I/O	2 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Mainstream Performance line, Arm Cortex-M3 MCU 1 Mbyte of Flash 72 MHz CPU, moto STM32F103RGT6TR STMicroelectronics 1: S/ 61.19 2,000In Stock 2,000On Order	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 2,000On Order On Order Ship Dates Mfr. #: STM32F103RGT6TR Stock: 2,000 Can Ship Immediately On Order: 1,000 Expected 11/5/2026 1,000 Expected 11/27/2026 Factory Lead-Time: 52 Weeks	Cut Tape S/ 61.19 S/ 48.03 S/ 43.75 S/ 41.14 View Reel S/ 34.37 S/ 40.37 S/ 38.03 S/ 34.37 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	72 MHz	1 MB	96 kB	12 bit	112 I/O	2 V	3.6 V	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU PSOC 5LP ANLOG 67MHZ,256K FLASH CY8C5468AXI-LP106 Infineon Technologies 1: S/ 60.68 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	S/ 60.68 S/ 47.22 S/ 42.70 S/ 40.05 View S/ 38.50 S/ 36.20 S/ 35.42 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 ARM 32Bit Value Line 64-Pin 32kB Flash STM32F100RCT6B STMicroelectronics 1: S/ 32.00 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	S/ 32.00 S/ 24.72 S/ 21.76 S/ 20.36 View S/ 17.67 S/ 17.32 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	24 MHz	256 kB	24 kB	12 bit	51 I/O	2 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT Cortex M3 64KB 20KB RAM 2X12 ADC STM32F103C8T6 STMicroelectronics 1: S/ 26.24 13,351In Stock	Mfr. Part # STM32F103C8T6 Mouser Part # 511-STM32F103C8T6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 64KB 20KB RAM 2X12 ADC Learn More about STMicroelectronics stm32f1	Datasheet	13,351In Stock	S/ 26.24 S/ 20.75 S/ 17.48 S/ 16.70 View S/ 16.11 S/ 15.69 S/ 15.65 S/ 15.53	Min.: 1 Mult.: 1	SMD/SMT	LQFP-48	ARM Cortex M3	32 bit	72 MHz	64 kB	20 kB	12 bit	37 I/O	2 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT Cortex M3 USB CAN 7 TMRS 2 ADCS STM32F103RBT6TR STMicroelectronics 1: S/ 34.22 21,014In 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	21,014In Stock	Cut Tape S/ 34.22 S/ 26.47 S/ 23.36 S/ 22.38 Reel S/ 18.72 View S/ 21.91 S/ 20.75 S/ 17.48 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	72 MHz	128 kB	20 kB	12 bit	51 I/O	2 V	3.6 V	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32BIT Cortex M3 128K 20KB RAM 2X12 ADC STM32F103VBT6 STMicroelectronics 1: S/ 31.37 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	S/ 31.37 S/ 25.65 S/ 23.90 S/ 22.27 View S/ 21.84 S/ 20.16 S/ 19.81	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	32 bit	72 MHz	128 kB	20 kB	12 bit	100 I/O	2 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT Cortex M3 256kB Flash 100pin STM32F103VCT6 STMicroelectronics 1: S/ 35.23 12,485In Stock	Mfr. Part # STM32F103VCT6 Mouser Part # 511-STM32F103VCT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 256kB Flash 100pin Learn More about STMicroelectronics stm32f1	Datasheet	12,485In Stock	S/ 35.23 S/ 28.77 S/ 26.74 S/ 24.83 View S/ 24.33 S/ 21.99 S/ 21.41	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	32 bit	72 MHz	256 kB	48 kB	12 bit	80 I/O	2 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Mainstream Perform ARM Cortex-M3 MCU STM32F103ZGT6TR STMicroelectronics 1: S/ 71.74 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 S/ 71.74 S/ 56.21 S/ 52.08 S/ 48.07 S/ 46.36 Reel S/ 42.93 MouseReel Available	Min.: 1 Mult.: 1 : 500	SMD/SMT	LQFP-144	ARM Cortex M3	32 bit	72 MHz	1 MB	96 kB	12 bit	112 I/O	2 V	3.6 V	+ 85 C	Reel, Cut Tape, MouseReel
RF Microcontrollers - MCU SimpleLink 32-bit A rm Cortex -M3 Bluet A 595-CC2640R2FRGZT CC2640R2FRGZR Texas Instruments 1: S/ 22.97 4,754In Stock	Mfr. Part # CC2640R2FRGZR Mouser Part # 595-CC2640R2FRGZR	Texas Instruments	RF Microcontrollers - MCU SimpleLink 32-bit A rm Cortex -M3 Bluet A 595-CC2640R2FRGZT Learn More about Texas Instruments ti cc2640r2f simplelink	Datasheet	4,754In Stock	Cut Tape S/ 22.97 S/ 18.02 S/ 16.62 S/ 15.06 View Reel S/ 13.35 S/ 14.32 S/ 13.90 S/ 13.70 S/ 13.35 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	31 I/O	1.8 V	3.8 V	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU MCU,M3,120MHz,1MBMem/130kBRAM,QFP100 TMPM3HNF10BFG Toshiba 1: S/ 50.64 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	S/ 50.64 S/ 41.96 S/ 37.33 S/ 36.47 View S/ 34.60 S/ 33.59 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-100	ARM Cortex M3	32 bit	120 MHz			12 bit	92 I/O	2.7 V	5.5 V	+ 105 C	Tray
ARM Microcontrollers - MCU 32BIT Cortex M3 L/D Performance LINE STM32F103ZET7 STMicroelectronics 1: S/ 63.02 1,574In Stock	Mfr. Part # STM32F103ZET7 Mouser Part # 511-STM32F103ZET7	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 L/D Performance LINE Learn More about STMicroelectronics stm32f1	Datasheet	1,574In Stock	S/ 63.02 S/ 49.75 S/ 43.95 S/ 42.39 View S/ 38.15 S/ 37.21	Min.: 1 Mult.: 1	SMD/SMT	LQFP-144	ARM Cortex M3	32 bit	72 MHz	512 kB	64 kB	12 bit	112 I/O	2 V	3.6 V	+ 105 C	Tray
RF Microcontrollers - MCU SimpleLink Bluetooth low enrgy Wirels MC A 595-CC2640R2FRGZR CC2640R2FRGZT Texas Instruments 1: S/ 26.51 6,056In Stock	Mfr. Part # CC2640R2FRGZT Mouser Part # 595-CC2640R2FRGZT	Texas Instruments	RF Microcontrollers - MCU SimpleLink Bluetooth low enrgy Wirels MC A 595-CC2640R2FRGZR Learn More about Texas Instruments ti cc2640r2f simplelink	Datasheet	6,056In Stock	Cut Tape S/ 26.51 S/ 20.32 S/ 18.80 S/ 17.09 Reel S/ 16.23 View S/ 15.76 S/ 15.57 S/ 15.38 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	1.8 V	3.8 V	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32BIT Cortex M3 M/D Performance LINE STM32F103CBT7 STMicroelectronics 1: S/ 34.33 7,608In 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	7,608In Stock	S/ 34.33 S/ 26.55 S/ 23.43 S/ 22.46 View S/ 21.45 S/ 20.82 S/ 20.36 S/ 19.73	Min.: 1 Mult.: 1	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	+ 105 C	Tray