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ARM Cortex M3 Core Microcontrollers - MCU

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (SGD) 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 Leopard Gecko MCU IC 256KB EFM32LG842F256G-F-QFP64R Silicon Labs 1: $16.06 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 $16.06 $12.58 $11.71 $10.74 View Reel $9.79 $10.65 $10.02 $9.79 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: $15.18 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	$15.18 $12.06 $11.08 $10.28 View $9.76 $9.57 $9.36 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 QFP144,GREEN IND TEMP, MRL A ATSAM3X4EA-AU Microchip Technology 1: $17.88 1,227In Stock	Mfr. Part No. ATSAM3X4EA-AU Mouser Part No 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	$17.88 $16.27 $14.72 $14.67	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 128K Flash, 36K SRAM 32-bit ARM Cortex M3 ATSAM3U2CA-CU Microchip Technology 1: $8.27 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	$8.27 $8.26 $7.87 $7.71 $7.66	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 ARM Cortex-M3 32-bit 40 MHz 256 kB MCU EFM32JG1B100F256GM32-C0 Silicon Labs 1: $7.33 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	$7.33 $5.58 $5.14 $4.66 View $4.43 $4.30 $4.24 $4.19 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 ARM 32Bit Value Line 64-Pin 32kB Flash STM32F100RCT6B STMicroelectronics 1: $11.18 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	$11.18 $8.64 $7.60 $7.11 View $6.17 $6.05 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 USB CAN 7 TMRS 2 ADCS STM32F103RBT6TR STMicroelectronics 1: $11.95 19,014In 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	19,014In Stock	Cut Tape $11.95 $9.25 $8.16 $7.82 Reel $6.54 View $7.66 $7.25 $6.11 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: $10.96 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	$10.96 $8.96 $8.35 $7.78 View $7.63 $7.04 $6.92	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: $12.31 12,339In 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	12,339In Stock	$12.31 $10.05 $9.34 $8.68 View $8.50 $7.68 $7.48	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: $25.06 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 $25.06 $19.64 $18.20 $16.80 $16.20 Reel $15.00 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: $8.02 4,754In Stock	Mfr. Part No. CC2640R2FRGZR Mouser Part No 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 $8.02 $6.30 $5.81 $5.26 View Reel $4.66 $5.00 $4.86 $4.79 $4.66 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 32BIT Cortex M3 512B Flash 100pin STM32F103VET6 STMicroelectronics 1: $15.08 25,653In 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	25,653In Stock	$15.08 $12.55 $11.15 $10.66 View $10.49 $10.20 $10.06 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: $18.03 11,010In 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	11,010In Stock	$18.03 $14.61 $13.78 $13.33 View $12.84 $12.66 $11.87	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: $22.05 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	$22.05 $17.34 $15.78 $14.86 View $14.39 $13.99 $12.66 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: $10.51 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 $10.51 $8.11 $7.48 $6.84 Reel $6.13 View $6.34 $5.83	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: $36.79 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	$36.79 $30.30 $27.12 $26.26 View $24.00 $23.99	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 32-Bit Cortex 64Kb Performance Line STM32F103VET6TR STMicroelectronics 1: $14.31 11,394In 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	11,394In Stock	Cut Tape $14.31 $12.31 $11.49 $11.12 View Reel $9.26 $11.02 $10.58 $9.26 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	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	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 1024kB STM32F205RGT6 STMicroelectronics 1: $21.87 2,582In 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	2,582In Stock	$21.87 $17.26 $15.41 $14.51 View $14.44 $13.76 $13.63	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	120 MHz	1 MB	128 kB	12 bit	51 I/O	1.8 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 32 Kbytes of Flash , 32 MHz CPU, USB STM32L151C6T6A STMicroelectronics 1: $7.44 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	$7.44 $5.67 $4.95 $4.73 View $4.50 $4.35 $3.82 $3.54 $3.45	Min.: 1 Mult.: 1	SMD/SMT	LQFP-48	ARM Cortex M3	32 bit	32 MHz	32 kB	10 kB	12 bit	37 I/O	1.65 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU MCU,M3,120MHz,1MBMem/130kBRAM,QFP100 TMPM3HNF10BFG Toshiba 1: $17.69 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	$17.69 $14.66 $13.04 $12.74 View $12.09 $11.74 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
RF Microcontrollers - MCU SimpleLink Bluetooth low enrgy Wirels MC A 595-CC2640R2FRGZR CC2640R2FRGZT Texas Instruments 1: $9.26 6,056In Stock	Mfr. Part No. CC2640R2FRGZT Mouser Part No 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 $9.26 $7.10 $6.57 $5.97 Reel $5.67 View $5.51 $5.44 $5.37 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 128K FLASH 20KB RAM STM32F103RBT6 STMicroelectronics 1: $12.61 13,785In 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	13,785In Stock	$12.61 $9.68 $8.64 $8.24 $7.77	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: $21.38 3,000In Stock 1,000Expected 27/11/2026	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 27/11/2026	Cut Tape $21.38 $16.78 $15.29 $14.38 View Reel $12.01 $14.10 $13.29 $12.01 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: $21.20 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	$21.20 $16.50 $14.92 $13.99 View $13.45 $12.65 $12.38 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 32BIT Cortex M3 M/D Performance LINE STM32F103CBT7 STMicroelectronics 1: $12.00 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	$12.00 $9.28 $8.19 $7.85 View $7.49 $7.28 $7.11 $6.90	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