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 (CAD) Filter the results in the table by unit price based on your quantity.
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Data Bus Width
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Supply Voltage - Max
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STMicroelectronics ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 512kB
Datasheet
335In 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 Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash
Datasheet
2,080In Stock
Min.: 1
Mult.: 1
Reel: 2,400

SMD/SMT LQFP-48 ARM Cortex M4 32 bit 72 MHz 256 kB 40 kB 4 x 6 bit/8 bit/10 bit/12 bit 37 I/O 2 V 3.6 V + 85 C Reel, Cut Tape
STMicroelectronics ARM Microcontrollers - MCU Cost effective DSP FPU ARM CortexM4 MCU
Datasheet
976In Stock
Min.: 1
Mult.: 1

SMD/SMT UFQFPN-48 ARM Cortex M4 32 bit 84 MHz 128 kB 64 kB 12 bit 36 I/O 1.7 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32B ARM Cortex-M4 1Mb Flash 168MHz CPU
Datasheet
916In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-176 ARM Cortex M4 32 bit 180 MHz 1 MB 256 kB 3 x 12 bit 140 I/O 1.7 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 64 Kbytes of Flash 32 MHz CPU, USB, LCD, AES
Datasheet
3,138In Stock
Min.: 1
Mult.: 1

SMD/SMT ARM Cortex M0+ 32 bit 32 MHz 64 kB 8 kB 12 bit 37 I/O 1.8 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 64 Kbytes of Flash , 32 MHz CPU, USB
Datasheet
2,450In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 ARM Cortex M3 32 bit 32 MHz 64 kB 10 kB 12 bit 37 I/O 1.65 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 32 Kbytes of Flash , 32 MHz CPU, USB
Datasheet
2,592In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M3 32 bit 32 MHz 32 kB 10 kB 12 bit 51 I/O 1.65 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32B ARM Cortex-M4 1Mb Flash 168MHz CPU
Datasheet
1,564In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M4 32 bit 168 MHz 1 MB 192 kB 12 bit 51 I/O 1.8 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32B ARM Cortex-M4 1Mb Flash 168MHz CPU
Datasheet
951In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M4 32 bit 168 MHz 1 MB 192 kB 12 bit 51 I/O 1.8 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32B ARM Cortex-M3 256Kb Flsh 32MHz CPU
Datasheet
1,511In 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 32-Bit Arm Cortex M3 128kb LCD Ultralow
Datasheet
449In Stock
Min.: 1
Mult.: 1

ARM Cortex M3 32 bit 1.65 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU ARM Cortex-M0 MCU 32Kb Flash 48MHz
Datasheet
311In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 ARM Cortex M0 32 bit 32 MHz 32 kB 4 kB 12 bit 39 I/O 2 V 3.6 V + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 512 Kbytes of Flash 32 MHz CPU, LCD, USB, 2xOp
Datasheet
63In 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 1.8 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M0 USB line MCU 16 Kbytes of Flash 48 MHz CPU, USB, CAN &
Datasheet
665In Stock
2,940Expected 2026-02-17
Min.: 1
Mult.: 1

SMD/SMT UFQFPN-32 ARM Cortex M0 32 bit 48 MHz 16 kB 6 kB 12 bit 26 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex High Density 384kb
Datasheet
58In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M3 32 bit 72 MHz 384 kB 64 kB 12 bit 2 V 3.6 V + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M0 Access line MCU 32 Kbytes of Flash 48 MHz CPU, motor co
Datasheet
1,566In Stock
Min.: 1
Mult.: 1
Reel: 2,400

LQFP-48 Reel, Cut Tape
STMicroelectronics ARM Microcontrollers - MCU 32-Bit Cortex 64Kb PERFORMANCE LINE
Datasheet
1,258In Stock
Min.: 1
Mult.: 1

SMD/SMT UFQFPN-48 ARM Cortex M3 32 bit 72 MHz 32 kB 10 kB 12 bit 37 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex 1024kb Connectivity
Datasheet
880In Stock
Min.: 1
Mult.: 1

SMD/SMT BGA-176 ARM Cortex M3 32 bit 120 MHz 1 MB 128 kB 1.8 V 3.6 V + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 64 Kbytes of Flash , 32 MHz
Datasheet
864In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M0+ 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 32BIT Cortex M3 L/D Access Line
Datasheet
2,390In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,400

SMD/SMT LQFP-48 ARM Cortex M3 32 bit 36 MHz 32 kB 6 kB 12 bit 37 I/O 2 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex M3 H/D ACCESS USB MCU
Datasheet
386In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M3 32 bit 36 MHz 384 kB 48 kB 12 bit 51 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU STM32F103 Perf Line M3 384kB 72 MHz MCU
Datasheet
899In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT LQFP-100 ARM Cortex M3 32 bit 72 MHz 384 kB 64 kB 12 bit 2 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU DSP FPU ARM CortexM4 1Mb Flash 168MHz
Datasheet
152In Stock
Min.: 1
Mult.: 1

SMD/SMT BGA-176 ARM Cortex M4 32 bit 180 MHz 1 MB 256 kB 12 bit 140 I/O 1.7 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32B ARM Cortex-M3 256Kb Flsh 32MHz CPU
Datasheet
2,493In Stock
Min.: 1
Mult.: 1

SMD/SMT BGA-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 STM32L15 Low Power M3 384kB 32MHz MCU
Datasheet
184In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-144 ARM Cortex M3 32 bit 32 MHz 384 kB 48 kB 12 bit 115 I/O 1.65 V 3.6 V + 85 C Tray