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ARM Cortex M3 Core ARM Microcontrollers - MCU

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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.	Series	Mounting Style	Package/Case	Core	Program Memory Size	Data Bus Width	ADC Resolution	Maximum Clock Frequency	Number of I/Os	Data RAM Size	Supply Voltage - Min	Supply Voltage - Max	Minimum Operating Temperature	Maximum Operating Temperature	Packaging
ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB EFM32LG842F256G-F-QFP64R Silicon Labs 1: $11.82 5,787In Stock	Mfr. Part No. EFM32LG842F256G-F-QFP64R Mouser Part No 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 $11.82 $9.26 $8.61 $7.90 Reel $7.20 View $7.83 $7.37 $6.83	Min.: 1 Mult.: 1 : 1,000	EFM32LG	SMD/SMT	TQFP-64	ARM Cortex M3	256 kB	32 bit	12 bit	48 MHz	53 I/O	32 kB	1.98 V	3.8 V	- 40 C	+ 85 C	Reel, Cut Tape
ARM Microcontrollers - MCU ARM Cortex-M3 32-bit 40 MHz 256 kB MCU EFM32JG1B100F256GM32-C0 Silicon Labs 1: $5.40 6,730In Stock	Mfr. Part No. EFM32JG1B100F256GM32-C0 Mouser Part No 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	$5.40 $4.11 $3.78 $3.43 View $3.26 $3.16 $3.12 $3.08 Quote	Min.: 1 Mult.: 1	EFM32JG	SMD/SMT	QFN-32	ARM Cortex M3	256 kB	32 bit	12 bit	40 MHz	24 I/O	32 kB	1.85 V	3.8 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB EFM32LG230F256G-F-QFN64 Silicon Labs 1: $11.16 2,584In Stock	Mfr. Part No. EFM32LG230F256G-F-QFN64 Mouser Part No 634-32LG230F256GFQFN	Silicon Labs	ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB Learn More about Silicon Labs energymicro efm32leopard	Datasheet	2,584In Stock	$11.16 $8.87 $8.15 $7.56 View $7.18 $7.04 $6.88 Quote	Min.: 1 Mult.: 1	EFM32LG	SMD/SMT	QFN-64	ARM Cortex M3	256 kB	32 bit	12 bit	48 MHz	56 I/O	32 kB	1.98 V	3.8 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 128K Flash, 36K SRAM 32-bit ARM Cortex M3 ATSAM3U2CA-CU Microchip Technology 1: $6.02 4,419In Stock	Mfr. Part No. ATSAM3U2CA-CU Mouser Part No 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	$6.02 $5.79 $5.68 $5.64	Min.: 1 Mult.: 1	SAM3U	SMD/SMT	TFBGA-100	ARM Cortex M3	128 kB	32 bit	12 bit	96 MHz	57 I/O	36 kB	1.62 V	1.95 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU ARM 32Bit Value Line 64-Pin 32kB Flash STM32F100RCT6B STMicroelectronics 1: $8.22 3,768In Stock	Mfr. Part No. STM32F100RCT6B Mouser Part No 511-STM32F100RCT6B	STMicroelectronics	ARM Microcontrollers - MCU ARM 32Bit Value Line 64-Pin 32kB Flash Learn More about STMicroelectronics stm32f1	Datasheet	3,768In Stock	$8.22 $6.35 $5.59 $5.23 View $4.54 $4.45 $4.40	Min.: 1 Mult.: 1	STM32F100RC	SMD/SMT	LQFP-64	ARM Cortex M3	256 kB	32 bit	12 bit	24 MHz	51 I/O	24 kB	2 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT Cortex M3 USB CAN 7 TMRS 2 ADCS STM32F103RBT6TR STMicroelectronics 1: $8.79 18,679In Stock	Mfr. Part No. STM32F103RBT6TR Mouser Part No 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 $5.76 Reel $4.81 View $5.63 $5.33 $4.49 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	STM32F103RB	SMD/SMT	LQFP-64	ARM Cortex M3	128 kB	32 bit	12 bit	72 MHz	51 I/O	20 kB	2 V	3.6 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32BIT Cortex M3 128K 20KB RAM 2X12 ADC STM32F103VBT6 STMicroelectronics 1: $8.06 5,565In Stock	Mfr. Part No. STM32F103VBT6 Mouser Part No 511-STM32F103VBT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 128K 20KB RAM 2X12 ADC Learn More about STMicroelectronics stm32f1	Datasheet	5,565In Stock	$8.06 $6.59 $6.14 $5.72 View $5.61 $5.18 $5.09	Min.: 1 Mult.: 1	STM32F103VB	SMD/SMT	LQFP-100	ARM Cortex M3	128 kB	32 bit	12 bit	72 MHz	100 I/O	20 kB	2 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT Cortex M3 256kB Flash 100pin STM32F103VCT6 STMicroelectronics 1: $9.05 12,341In Stock	Mfr. Part No. STM32F103VCT6 Mouser Part No 511-STM32F103VCT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 256kB Flash 100pin Learn More about STMicroelectronics stm32f1	Datasheet	12,341In Stock	$9.05 $7.40 $6.87 $6.38 View $6.26 $5.65 $5.50	Min.: 1 Mult.: 1	STM32F103VC	SMD/SMT	LQFP-100	ARM Cortex M3	256 kB	32 bit	12 bit	72 MHz	80 I/O	48 kB	2 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Mainstream Perform ARM Cortex-M3 MCU STM32F103ZGT6TR STMicroelectronics 1: $18.43 1,456In Stock	Mfr. Part No. STM32F103ZGT6TR Mouser Part No 511-STM32F103ZGT6TR	STMicroelectronics	ARM Microcontrollers - MCU Mainstream Perform ARM Cortex-M3 MCU Learn More about STMicroelectronics stm32f1	Datasheet	1,456In Stock	Cut Tape $18.43 $14.44 $13.39 $12.35 $11.91 Reel $11.04 MouseReel Available	Min.: 1 Mult.: 1 : 500	STM32F103ZG	SMD/SMT	LQFP-144	ARM Cortex M3	1 MB	32 bit	12 bit	72 MHz	112 I/O	96 kB	2 V	3.6 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32-Bit Cortex 64Kb Performance Line STM32F103VET6TR STMicroelectronics 1: $10.53 11,393In Stock	Mfr. Part No. STM32F103VET6TR Mouser Part No 511-STM32F103VET6TR	STMicroelectronics	ARM Microcontrollers - MCU 32-Bit Cortex 64Kb Performance Line Learn More about STMicroelectronics stm32f1	Datasheet	11,393In Stock	Cut Tape $10.53 $9.05 $8.46 $8.18 Reel $6.82 View $8.11 $7.78 $6.64 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	STM32F103VE	SMD/SMT	LQFP-100	ARM Cortex M3	512 kB	32 bit	12 bit	72 MHz	80 I/O	64 kB	2 V	3.6 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 1024kB STM32F205RGT6 STMicroelectronics 1: $16.08 2,581In Stock	Mfr. Part No. STM32F205RGT6 Mouser Part No 511-STM32F205RGT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 1024kB Learn More about STMicroelectronics stm32f2	Datasheet	2,581In Stock	$16.08 $12.69 $11.33 $10.68 View $10.62 $10.12 $10.03	Min.: 1 Mult.: 1	STM32F205RG	SMD/SMT	LQFP-64	ARM Cortex M3	1 MB	32 bit	12 bit	120 MHz	51 I/O	128 kB	1.8 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 32 Kbytes of Flash , 32 MHz CPU, USB STM32L151C6T6A STMicroelectronics 1: $5.47 12,803In Stock	Mfr. Part No. STM32L151C6T6A Mouser Part No 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	$5.47 $4.18 $3.64 $3.48 View $3.31 $3.20 $2.81 $2.61 $2.54	Min.: 1 Mult.: 1	STM32L151C6-A	SMD/SMT	LQFP-48	ARM Cortex M3	32 kB	32 bit	12 bit	32 MHz	37 I/O	10 kB	1.65 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU MCU,M3,120MHz,1MBMem/130kBRAM,QFP100 TMPM3HNF10BFG Toshiba 1: $13.01 1,795In Stock	Mfr. Part No. TMPM3HNF10BFG Mouser Part No 757-TMPM3HNF10BFG	Toshiba	ARM Microcontrollers - MCU MCU,M3,120MHz,1MBMem/130kBRAM,QFP100 Learn More about Toshiba tmpm3h arm microcontrollers		1,795In Stock	$13.01 $10.78 $9.59 $9.37 View $8.90 $8.63 Quote	Min.: 1 Mult.: 1		SMD/SMT	LQFP-100	ARM Cortex M3		32 bit	12 bit	120 MHz	92 I/O		2.7 V	5.5 V	- 40 C	+ 105 C	Tray
ARM Microcontrollers - MCU 32BIT Cortex M3 128K FLASH 20KB RAM STM32F103RBT6 STMicroelectronics 1: $9.27 13,789In Stock	Mfr. Part No. STM32F103RBT6 Mouser Part No 511-STM32F103RBT6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 128K FLASH 20KB RAM Learn More about STMicroelectronics stm32f1	Datasheet	13,789In Stock	$9.27 $7.12 $6.35 $6.06 $5.71	Min.: 1 Mult.: 1	STM32F103RB	SMD/SMT	LQFP-64	ARM Cortex M3	128 kB	32 bit	12 bit	72 MHz	64 I/O	20 kB	2 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Mainstream Performance line, Arm Cortex-M3 MCU 1 Mbyte of Flash 72 MHz CPU, moto STM32F103RGT6TR STMicroelectronics 1: $15.42 3,000In Stock 1,000Expected 2026/11/12	Mfr. Part No. STM32F103RGT6TR Mouser Part No 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 $15.42 $12.08 $11.19 $10.33 View Reel $8.80 $9.97 $9.63 $8.80 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	STM32F103RG	SMD/SMT	LQFP-64	ARM Cortex M3	1 MB	32 bit	12 bit	72 MHz	112 I/O	96 kB	2 V	3.6 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU PSOC 5LP ANLOG 67MHZ,256K FLASH CY8C5468AXI-LP106 Infineon Technologies 1: $15.60 3,032In Stock	Mfr. Part No. CY8C5468AXI-LP106 Mouser Part No 727-CY8C5468AXILP106	Infineon Technologies	ARM Microcontrollers - MCU PSOC 5LP ANLOG 67MHZ,256K FLASH Learn More about Infineon Technologies cypress psoc5lp	Datasheet	3,032In Stock	$15.60 $12.13 $10.97 $10.29 View $9.90 $9.30 $9.11 Quote	Min.: 1 Mult.: 1	CY8C54LPxxx	SMD/SMT	TQFP-100	ARM Cortex M3	256 kB	32 bit	12 bit	67 MHz	72 I/O	64 kB	1.71 V	1.89 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT Cortex M3 512B Flash 100pin STM32F103VET6 STMicroelectronics 1: $12.84 25,811In Stock	Mfr. Part No. STM32F103VET6 Mouser Part No 511-STM32F103VET6	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 512B Flash 100pin Learn More about STMicroelectronics stm32f1	Datasheet	25,811In Stock	$12.84 $10.29 $9.32 $8.84 View $8.69 $8.47 $8.46 Quote	Min.: 1 Mult.: 1	STM32F103VE	SMD/SMT	LQFP-100	ARM Cortex M3	512 kB	32 bit	12 bit	72 MHz	80 I/O	64 kB	2 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU Mainstream ARM M3 1Mb 72 MHz USB CAN STM32F103VGT6 STMicroelectronics 1: $14.17 10,984In Stock	Mfr. Part No. STM32F103VGT6 Mouser Part No 511-STM32F103VGT6	STMicroelectronics	ARM Microcontrollers - MCU Mainstream ARM M3 1Mb 72 MHz USB CAN Learn More about STMicroelectronics stm32f1	Datasheet	10,984In Stock	$14.17 $11.11 $10.30 $9.97 View $9.51 $9.39 $8.83	Min.: 1 Mult.: 1	STM32F103VG	SMD/SMT	LQFP-100	ARM Cortex M3	1 MB	32 bit	12 bit	72 MHz	112 I/O	96 kB	2 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT Cortex M3 512KB Perform Line STM32F103ZEH7 STMicroelectronics 1: $16.21 2,525In Stock	Mfr. Part No. STM32F103ZEH7 Mouser Part No 511-STM32F103ZEH7	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 512KB Perform Line Learn More about STMicroelectronics stm32f1	Datasheet	2,525In Stock	$16.21 $12.76 $11.61 $10.93 View $10.58 $10.29 $9.32 Quote	Min.: 1 Mult.: 1	STM32F103ZE	SMD/SMT	BGA-144	ARM Cortex M3	512 kB	32 bit	12 bit	72 MHz	112 I/O	64 kB	2 V	3.6 V	- 40 C	+ 105 C	Tray
ARM Microcontrollers - MCU 128k Flash, 16k RAM, AES EFM32G222F128G-E-QFP48R Silicon Labs 1: $7.73 3,414In Stock	Mfr. Part No. EFM32G222F128G-E-QFP48R Mouser Part No 634-32G222128GEFP48R	Silicon Labs	ARM Microcontrollers - MCU 128k Flash, 16k RAM, AES	Datasheet	3,414In Stock	Cut Tape $7.73 $5.97 $5.50 $5.04 Reel $4.51 View $4.66 $4.29	Min.: 1 Mult.: 1 : 1,000		SMD/SMT	TQFP-48	ARM Cortex M3	128 kB	32 bit	12 bit	32 MHz	37 I/O	16 kB	1.98 V	3.8 V	- 40 C	+ 85 C	Reel, Cut Tape
ARM Microcontrollers - MCU 5.50 V, PSoC 5 CapSense Plus CY8C5668AXI-LP034 Infineon Technologies 1: $27.05 2,442In Stock	Mfr. Part No. CY8C5668AXI-LP034 Mouser Part No 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	$27.05 $22.28 $19.95 $19.32 View $17.65 $17.64	Min.: 1 Mult.: 1	CY8C56LPxxx	SMD/SMT	TQFP-100	ARM Cortex M3	256 kB	32 bit	12 bit	67 MHz	72 I/O	64 kB	1.71 V	1.89 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT CORTEX M3 128K Flash 20KB RAM STM32F103VBT6TR STMicroelectronics 1: $9.78 8,732In Stock	Mfr. Part No. STM32F103VBT6TR Mouser Part No 511-STM32F103VBT6TR	STMicroelectronics	ARM Microcontrollers - MCU 32BIT CORTEX M3 128K Flash 20KB RAM Learn More about STMicroelectronics stm32f1	Datasheet	8,732In Stock	Cut Tape $9.78 $7.61 $6.72 $6.45 Reel $5.25 View $6.34 $5.98 $5.22 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	STM32F103VB	SMD/SMT	LQFP-100	ARM Cortex M3	128 kB	32 bit	12 bit	72 MHz	100 I/O	20 kB	2 V	3.6 V	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 512 Kbytes of Flash 32 MHz CPU, USB, 2xOp-amp STM32L152VET6 STMicroelectronics 1: $12.69 2,241In Stock	Mfr. Part No. STM32L152VET6 Mouser Part No 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	$12.69 $9.51 $8.76 $8.48 View $8.05 $7.48 $7.47	Min.: 1 Mult.: 1	STM32L152VE	SMD/SMT	LQFP-100	ARM Cortex M3	512 kB	32 bit	12 bit	32 MHz	83 I/O	80 kB	1.65 V	3.6 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 256kB flash, 64kB SRAM, USB, LQFP100 package LPC1765FBD100K NXP Semiconductors 1: $14.41 5,650In Stock	Mfr. Part No. LPC1765FBD100K Mouser Part No 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	$14.41 $11.25 $10.51 $9.87 View $9.49 $9.30 $9.18 Quote	Min.: 1 Mult.: 1	LPC1700	SMD/SMT	LQFP-100	ARM Cortex M3	256 kB	32 bit	12 bit	100 MHz	70 I/O	64 kB	3.3 V	3.3 V	- 40 C	+ 85 C	Tray
ARM Microcontrollers - MCU 32BIT Cortex M3 M/D Performance LINE STM32F103CBT7 STMicroelectronics 1: $8.83 7,798In Stock	Mfr. Part No. STM32F103CBT7 Mouser Part No 511-STM32F103CBT7	STMicroelectronics	ARM Microcontrollers - MCU 32BIT Cortex M3 M/D Performance LINE Learn More about STMicroelectronics stm32f1	Datasheet	7,798In Stock	$8.83 $6.83 $6.02 $5.77 View $5.51 $5.35 $5.34 $5.16	Min.: 1 Mult.: 1	STM32F103CB	SMD/SMT	LQFP-48	ARM Cortex M3	128 kB	32 bit	12 bit	72 MHz	37 I/O	20 kB	2 V	3.6 V	- 40 C	+ 105 C	Tray