ARM Cortex M3 Core Microcontrollers - MCU

Types of Microcontrollers - MCU
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Description Datasheet Availability Pricing (GBP) Filter the results in the table by unit price based on your quantity.
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STMicroelectronics ARM Microcontrollers - MCU 32-Bit Cortex 64Kb Access Line MCU
Datasheet
1,019In Stock
Min.: 1
Mult.: 1

SMD/SMT UFQFPN-48 ARM Cortex M3 32 bit 36 MHz 64 kB 10 kB 12 bit 37 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Connectivity line, Arm Cortex-M3 MCU 256 Kbytes of Flash 72 MHz CPU,
Datasheet
515In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M3 32 bit 72 MHz 256 kB 64 kB 12 bit 80 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 512kB
Datasheet
162In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-144 ARM Cortex M3 32 bit 120 MHz 512 kB 128 kB 12 bit 114 I/O 1.8 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU ARM 32Bit Value Line 48-Pin 64kB Flash
Datasheet
11,988Expected 12/05/2027
MouseReel Available
Min.: 1
Mult.: 1
: 2,400

SMD/SMT LQFP-48 ARM Cortex M3 32 bit 24 MHz 64 kB 8 kB 12 bit 37 I/O 2 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex M3 128K 16KB RAM 1X12 ADC
Datasheet
4,488On Order
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 ARM Cortex M3 32 bit 36 MHz 128 kB 16 kB 12 bit 37 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex M3 64KB 20KB RAM 2X12 ADC
Datasheet
16,433On Order
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
STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex M3 Medium-density
Datasheet
3,786On Order
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 + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Performance line, Arm Cortex-M3 MCU 128 Kbytes of Flash 72 MHz CPU, m
Datasheet
4,991Expected 25/12/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

SMD/SMT UFQFPN-48 ARM Cortex M3 32 bit 72 MHz 128 kB 20 kB 12 bit 37 I/O 2 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU Perform ARM 32Bit 32kB Flash 64-Pin
Datasheet
2,000Expected 05/07/2027
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

SMD/SMT LQFP-64 ARM Cortex M3 32 bit 72 MHz 768 kB 96 kB 12 bit 2 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU XL-Density Access Line 32-Bit 1G Flash
Datasheet
3,840On Order
Min.: 1
Mult.: 1

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 Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Performance line, Arm Cortex-M3 MCU 1 Mbyte of Flash 72 MHz CPU, moto
Datasheet
4,000Expected 13/11/2026
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
STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex M3 384Kb Flash MCU
Datasheet
2,208Expected 27/11/2026
Min.: 1
Mult.: 1

SMD/SMT BGA-144 ARM Cortex M3 32 bit 72 MHz 384 kB 64 kB 12 bit 112 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex M3 STM32F103 Eval BRD
Datasheet
2,206Expected 16/09/2026
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 + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex 64/25 CONNECTIVITY LINE M3
Datasheet
3,689On Order
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M3 32 bit 72 MHz 128 kB 64 kB 12 bit 51 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power 32-bit Value Line Arm Cortex-M3 MCU 64 Kbytes of Flash 32 MHz CP
Datasheet
4,800On Order
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M3 32 bit 32 MHz 64 kB 8 kB 12 bit 51 I/O 1.8 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 128 Kbytes of Flash , 32 MHz CPU, USB
Datasheet
4,499On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2,400

SMD/SMT LQFP-48 ARM Cortex M3 32 bit 32 MHz 128 kB 16 kB 12 bit 37 I/O 1.8 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 512 Kbytes of Flash 32 MHz CPU, USB, 2xOp-amp
Datasheet
2,496Expected 10/12/2026
Min.: 1
Mult.: 1

SMD/SMT BGA-132 ARM Cortex M3 32 bit 32 MHz 512 kB 80 kB 12 bit 109 I/O 1.65 V 3.6 V + 85 C Tray
Infineon Technologies ARM Microcontrollers - MCU PSOC 5LP ANLOG 67MHZ,256K FLASH
Datasheet
3,133Expected 24/09/2026
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
Infineon Technologies ARM Microcontrollers - MCU MM-LEGACY PSOC135
Datasheet
1,997Expected 24/09/2026
Min.: 1
Mult.: 1
: 2,000

SMD/SMT WLCSP-99 ARM Cortex M3 32 bit 80 MHz 256 kB 64 kB 12 bit 62 I/O 1.71 V 1.89 V + 85 C Reel, Cut Tape
Infineon Technologies ARM Microcontrollers - MCU 256K Flash 64K SRAM PSoC 5LP
Datasheet
6,796On Order
Min.: 1
Mult.: 1

SMD/SMT TQFP-100 ARM Cortex M3 32 bit 67 MHz 256 kB 64 kB 12 bit 62 I/O 1.71 V 1.89 V + 85 C Tray

Infineon Technologies ARM Microcontrollers - MCU 256K Flash 64K SRAM PSoC 5LP
Datasheet
1,459Expected 08/10/2026
Min.: 1
Mult.: 1

SMD/SMT QFN-68 ARM Cortex M3 32 bit 67 MHz 256 kB 64 kB 12 bit 48 I/O 1.71 V 1.89 V + 85 C Tray
Infineon Technologies ARM Microcontrollers - MCU 256KB Flash 64KBSRAM PSoC 5LP
Datasheet
2,080Expected 24/09/2026
Min.: 1
Mult.: 1

SMD/SMT TQFP-100 ARM Cortex M3 32 bit 80 MHz 256 kB 64 kB 12 bit 62 I/O 1.71 V 1.89 V + 85 C Tray
Infineon Technologies ARM Microcontrollers - MCU MM-LEGACY PSOC135
Datasheet
1,995On Order
Min.: 1
Mult.: 1
: 2,000

SMD/SMT WLCSP-99 ARM Cortex M3 32 bit 80 MHz 256 kB 64 kB 12 bit 62 I/O 1.71 V 1.89 V + 85 C Reel, Cut Tape
Infineon Technologies ARM Microcontrollers - MCU MM-LEGACY PSOC135
Datasheet
2,000Expected 10/09/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

SMD/SMT WLCSP-99 ARM Cortex M3 32 bit 80 MHz 256 kB 64 kB 12 bit 62 I/O 1.71 V 1.89 V + 85 C Reel, Cut Tape, MouseReel

Infineon Technologies ARM Microcontrollers - MCU 256KB Flash 64KBSRAM PSoC 5LP
Datasheet
4,110On Order
Min.: 1
Mult.: 1

SMD/SMT QFN-68 ARM Cortex M3 32 bit 80 MHz 256 kB 64 kB 12 bit 38 I/O 1.71 V 1.89 V + 85 C Tray