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
Maximum Clock Frequency
Program Memory Size
Data RAM Size
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Supply Voltage - Max
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STMicroelectronics ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 512kB
Datasheet
216In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M3 32 bit 120 MHz 512 kB 128 kB 12 bit 82 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, 64 Kbytes of Flash 7
Datasheet
1,745In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 ARM Cortex M4 32 bit 72 MHz 64 kB 16 kB 12 bit 37 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 64 Kbytes of Flash 7
Datasheet
949In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M4 32 bit 72 MHz 64 kB 16 kB 12 bit 51 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 64 Kbytes of Flash 7
Datasheet
1,667In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 ARM Cortex M4 32 bit 72 MHz 64 kB 16 kB 12 bit 37 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex M4 72MHz 128kB MCU FPU
Datasheet
421In Stock
6,000Expected 2026-04-22
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 ARM Cortex M4 32 bit 72 MHz 128 kB 32 kB 2 x 6 bit/8 bit/10 bit/12 bit 37 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 64 Kbytes of Flash 7
Datasheet
1,473In Stock
2,940Expected 2026-03-16
Min.: 1
Mult.: 1

SMD/SMT UFQFPN-32 ARM Cortex M4 32 bit 72 MHz 64 kB 16 kB 6 bit/8 bit/10 bit/12 bit 24 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 128 Kbytes of Flash
Datasheet
2,743In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT LQFP-64 ARM Cortex M4 32 bit 72 MHz 128 kB 32 kB 2 x 6 bit/8 bit/10 bit/12 bit 51 I/O 2 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex M4 72MHz 256kB MCU FPU
Datasheet
512In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M4 32 bit 72 MHz 256 kB 40 kB 2 x 6 bit/8 bit/10 bit/12 bit 51 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Analog & DSP w/ FPU M4 256kB 72MHz
Datasheet
3,095In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT LQFP-64 ARM Cortex M4 32 bit 72 MHz 256 kB 40 kB 2 x 6 bit/8 bit/10 bit/12 bit 51 I/O 2 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 64 Kbytes of Flash 7
Datasheet
481In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 ARM Cortex M4 32 bit 72 MHz 64 kB 16 kB 2 x 6 bit/8 bit/10 bit/12 bit 38 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex M4 72MHz 128kB MCU FPU
Datasheet
1,466In Stock
1,500Expected 2026-04-10
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 ARM Cortex M4 32 bit 72 MHz 128 kB 32 kB 4 x 6 bit/8 bit/10 bit/12 bit 37 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Analog and DSP FPU ARM Cortex-M4 MCU
Datasheet
1,415In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 2,400

SMD/SMT LQFP-48 ARM Cortex M4 32 bit 72 MHz 128 kB 32 kB 4 x 6 bit/8 bit/10 bit/12 bit 37 I/O 2 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 128 Kbytes of Flash
Datasheet
795In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 ARM Cortex M4 32 bit 72 MHz 128 kB 40 kB 4 x 6 bit/8 bit/10 bit/12 bit 37 I/O 2 V 3.6 V + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 64 Kbytes of Flash 7
Datasheet
1,395In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-32 ARM Cortex M4 32 bit 72 MHz 64 kB 16 kB 2 x 6 bit/8 bit/10 bit/12 bit 34 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 64 Kbytes of Flash 7
Datasheet
404In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M4 32 bit 72 MHz 64 kB 16 kB 2 x 6 bit/8 bit/10 bit/12 bit 51 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex M4 72MHz 128kB MCU FPU
Datasheet
538In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M4 32 bit 72 MHz 128 kB 32 kB 4 x 6 bit/8 bit/10 bit/12 bit 52 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 128 Kbytes of Flash
Datasheet
451In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M4 32 bit 72 MHz 128 kB 32 kB 4 x 6 bit/8 bit/10 bit/12 bit 52 I/O 2 V 3.6 V + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash
Datasheet
708In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M4 32 bit 72 MHz 256 kB 40 kB 4 x 6 bit/8 bit/10 bit/12 bit 52 I/O 2 V 3.6 V + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 32 Kbytes of Flash 7
Datasheet
858In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 ARM Cortex M4 32 bit 72 MHz 32 kB 12 kB 2 x 6 bit/8 bit/10 bit/12 bit 37 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 16 Kbytes of Flash 7
Datasheet
1,189In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-32 ARM Cortex M4 32 bit 72 MHz 16 kB 12 kB 2 x 6 bit/8 bit/10 bit/12 bit 35 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 64 Kbytes of Flash 7
Datasheet
1,018In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-32 ARM Cortex M4 32 bit 72 MHz 64 kB 12 kB 2 x 6 bit/8 bit/10 bit/12 bit 35 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 64 Kbytes of Flash 7
Datasheet
502In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M4 32 bit 72 MHz 64 kB 12 kB 2 x 6 bit/8 bit/10 bit/12 bit 51 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex M4 72MHz 256kB MCU FPU
Datasheet
806In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 ARM Cortex M4 32 bit 72 MHz 256 kB 32 kB 12 bit, 3 x 16 bit 56 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex M4 72MHz 256kB MCU FPU
Datasheet
1,055In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M4 32 bit 72 MHz 256 kB 32 kB 12 bit, 3 x 16 bit 80 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Cost effective DSP FPU ARM CortexM4 MCU
Datasheet
1,723In Stock
3,120Expected 2026-03-09
Min.: 1
Mult.: 1

SMD/SMT UFQFPN-48 ARM Cortex M4 32 bit 84 MHz 256 kB 64 kB 12 bit 36 I/O 1.7 V 3.6 V + 85 C Tray