STM32 32-Bit Arm® Cortex®-M MCUs

STMicroelectronics STM32 32-Bit Arm® Cortex®-M MCUs are based on the Arm Cortex-M processor and designed to offer new degrees of freedom to MCU users. The MCUs offer a 32-bit product range that combines very high performance, real-time capabilities, digital signal processing, and low-power, low-voltage operation. This is achieved while maintaining full integration and ease of development. 

Types of Microcontrollers - MCU
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Description Datasheet Availability Pricing (SGD) Filter the results in the table by unit price based on your quantity.
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STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 512 Kbytes of Flash 32 MHz CPU, MCD, USB, 2xOp
Datasheet
5,502In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M3 32 bit 32 MHz 512 kB 80 kB 12 bit 83 I/O 1.65 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 512 Kbytes of Flash 32 MHz CPU, USB, 2xOp-amp
Datasheet
2,531In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M3 32 bit 32 MHz 512 kB 80 kB 12 bit 83 I/O 1.65 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32B ARM Cortex-M4 1Mb Flash 168MHz CPU
Datasheet
234In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M4 32 bit 168 MHz 1 MB 192 kB 12 bit 82 I/O 1.8 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex 128kb Low Power MCU
Datasheet
965In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

ARM Cortex M3 32 bit 1.65 V 3.6 V Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU STM32L15 Low Power M3 256kB 32MHz MCU
Datasheet
397In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M3 32 bit 32 MHz 256 kB 32 kB 12 bit 51 I/O 1.65 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32-Bit Arm Cortex M3 128kb LCD Ultralow
Datasheet
771In Stock
Min.: 1
Mult.: 1

SMD/SMT ARM Cortex M3 32 bit 32 MHz 128 kB 16 kB 12 bit 37 I/O 1.8 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU STM32L15 Low Power M3 256kB 32MHz MCU
Datasheet
430In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M3 32 bit 32 MHz 256 kB 32 kB 12 bit 83 I/O 1.65 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M0 Value line MCU 32 Kbytes of Flash , 48 MHz CPU
Datasheet
4,822In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,400

SMD/SMT LQFP-48 ARM Cortex M0 32 bit 48 MHz 32 kB 4 kB 12 bit 39 I/O 2.4 V 3.6 V + 85 C Reel, Cut Tape, MouseReel

STMicroelectronics ARM Microcontrollers - MCU Value-Line ARM MCU 16kB 48 MHz
Datasheet
2,875In Stock
2,960Expected 5/6/2026
Min.: 1
Mult.: 1

SMD/SMT TSSOP-20 ARM Cortex M0 32 bit 48 MHz 16 kB 4 kB 12 bit 15 I/O 2.4 V 3.6 V + 85 C Tube
STMicroelectronics ARM Microcontrollers - MCU Entry-level ARM Cortex-M0 Value MCU
Datasheet
5,451In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-32 ARM Cortex M0 32 bit 48 MHz 32 kB 4 kB 12 bit 26 I/O 2.4 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Value-Line ARM MCU 64kB 48 MHz
Datasheet
1,761In Stock
960Expected 24/6/2026
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M0 32 bit 48 MHz 64 kB 8 kB 12 bit 55 I/O 2.4 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Entry-level ARM Cortex-M0 MCU 16Kb
Datasheet
1,494In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 ARM Cortex M0 32 bit 48 MHz 16 kB 4 kB 12 bit 39 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Entry-level ARM Cortex-M0 MCU 32Kb
Datasheet
1,135In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 ARM Cortex M0 32 bit 48 MHz 32 kB 4 kB 12 bit 39 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU ARM Cortex-M0 MCU 32Kb Flash 48MHz
Datasheet
841In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,400

SMD/SMT LQFP-48 ARM Cortex M0 32 bit 48 MHz 32 kB 4 kB 12 bit 39 I/O 2 V 3.6 V + 85 C Reel, Cut Tape, MouseReel

STMicroelectronics ARM Microcontrollers - MCU Entry Level ARM M0 16 Kbytes 48 MHz
Datasheet
1,954In Stock
Min.: 1
Mult.: 1

SMD/SMT TSSOP-20 ARM Cortex M0 32 bit 48 MHz 16 kB 4 kB 12 bit 15 I/O 2 V 3.6 V + 85 C Tube
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M0 Access line MCU 32 Kbytes of Flash 48 MHz CPU, motor co
Datasheet
866In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-32 ARM Cortex M0 32 bit 48 MHz 32 kB 4 kB 12 bit 25 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M0 USB line MCU 32 Kbytes of Flash 48 MHz CPU, USB, CAN &
Datasheet
925In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 ARM Cortex M0 32 bit 48 MHz 32 kB 6 kB 12 bit 38 I/O 2 V 3.6 V + 85 C Tray

STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M0 USB line MCU 32 Kbytes of Flash 48 MHz CPU, USB, CAN &
Datasheet
2,284In Stock
Min.: 1
Mult.: 1

SMD/SMT TSSOP-20 ARM Cortex M0 32 bit 48 MHz 32 kB 6 kB 12 bit 16 I/O 2 V 3.6 V + 85 C Tube
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M0 USB line MCU 16 Kbytes of Flash 48 MHz CPU, USB, CAN &
Datasheet
4,238In Stock
Min.: 1
Mult.: 1

SMD/SMT UFQFPN-28 ARM Cortex M0 32 bit 48 MHz 16 kB 6 kB 12 bit 24 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M0 USB line MCU 32 Kbytes of Flash 48 MHz CPU, USB, CAN &
Datasheet
2,438In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-32 ARM Cortex M0 32 bit 48 MHz 32 kB 6 kB 12 bit 26 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Cortex M0 16kB 48MHz Motor CTRL SRAM MCU
Datasheet
875In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-32 ARM Cortex M0 32 bit 48 MHz 16 kB 8 kB 12 bit 25 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Entry-level ARM Cortex-M0 32 Kbytes
Datasheet
2,940In Stock
Min.: 1
Mult.: 1

SMD/SMT 32 kB 12 bit 27 I/O 2 V 3.6 V + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU Entry-level ARM Cortex-M0 MCU 64Kb
Datasheet
2,783In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-32 ARM Cortex M0 32 bit 48 MHz 64 kB 8 kB 12 bit 25 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex M0 64 Kbytes 2.0 - 3.6V
Datasheet
3,959In Stock
Min.: 1
Mult.: 1

SMD/SMT UFQFPN-32 ARM Cortex M0 32 bit 48 MHz 64 kB 8 kB 12 bit 27 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Entry-level ARM Cortex-M0 64 Kbytes
Datasheet
1,073In Stock
Min.: 1
Mult.: 1

SMD/SMT UFQFPN-32 ARM Cortex M0 32 bit 48 MHz 64 kB 8 kB 12 bit 27 I/O 2 V 3.6 V + 105 C Tray