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 (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS 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

STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex MED Density 128kb PL
Datasheet
2,940Expected 14/07/2026
Min.: 1
Mult.: 1

SMD/SMT VFQFPN-36 ARM Cortex M3 32 bit 72 MHz 128 kB 20 kB 12 bit 26 I/O 2 V 3.6 V + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Performance line, Arm Cortex-M3 MCU 512 Kbytes of Flash 72 MHz CPU, m
Datasheet
1,500Expected 14/07/2026
Min.: 1
Mult.: 1
Reel: 1,500

12 bit Reel, Cut Tape
STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex 64/25 CONNECTIVITY LINE M3
Datasheet
540Expected 10/04/2026
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M3 32 bit 72 MHz 128 kB 64 kB 12 bit 80 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Hi-perf ARM Cortex M3 MCU 512Kb
Datasheet
2,000Expected 15/07/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT LQFP-64 ARM Cortex M3 32 bit 120 MHz 512 kB 128 kB 12 bit 51 I/O 1.8 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
2,940Expected 17/07/2026
Min.: 1
Mult.: 1

SMD/SMT UFQFPN-32 ARM Cortex M4 32 bit 72 MHz 32 kB 16 kB 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, 256 Kbytes of Flash
Datasheet
1,080Expected 18/05/2026
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M4 32 bit 72 MHz 256 kB 40 kB 4 x 6 bit/8 bit/10 bit/12 bit 87 I/O 2 V 3.6 V + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 128 Kbytes of Flash , 32 MHz CPU, USB
Datasheet
3,115Expected 04/05/2026
Min.: 1
Mult.: 1

SMD/SMT UFQPFN-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 Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power ARM Cortex-M3 MCU
Datasheet
498Expected 14/04/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 500

LQFP-144 1.65 V 3.6 V Reel, Cut Tape, MouseReel

STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M0 Access line MCU 16 Kbytes of Flash , 48 MHz CPU
Datasheet
36In 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 + 105 C Tube
STMicroelectronics ARM Microcontrollers - MCU ARM 32Bit Value Line 144-Pin 256kB Flash
Datasheet
25In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-144 ARM Cortex M3 32 bit 24 MHz 256 kB 24 kB 12 bit 112 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU XL-Density Access Line 32-Bit 1G Flash
Datasheet
47In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M3 32 bit 36 MHz 1 MB 80 kB 12 bit 112 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Hi-performance DSP FPU ARM CortexM4 MCU
Datasheet
2In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

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 + 105 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 64 Kbytes of Flash , 32 MHz CPU, USB
Datasheet
1In Stock
Min.: 1
Mult.: 1

SMD/SMT BGA-100 ARM Cortex M3 32 bit 32 MHz 64 kB 10 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 64 Kbytes of Flash , 32 MHz CPU, LCD, USB
Datasheet
Non-Stocked Lead-Time 13 Weeks
Min.: 1
Mult.: 1

SMD/SMT UFQPFN-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 Mainstream Arm Cortex-M0 Access line MCU 16 Kbytes of Flash 48 MHz CPU, motor co
Datasheet
Non-Stocked Lead-Time 13 Weeks
Min.: 2,400
Mult.: 2,400
Reel: 2,400

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 Reel
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M0 Access line MCU 32 Kbytes of Flash 48 MHz CPU, motor co
Datasheet
Non-Stocked Lead-Time 13 Weeks
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT UFQFPN-28 ARM Cortex M0 32 bit 48 MHz 32 kB 4 kB 12 bit 23 I/O 2 V 3.6 V + 85 C Reel, Cut Tape, MouseReel

STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M0 Low-volt line 1,8V MCU 32 Kbytes of Flash 48 MHz CPU, U
Datasheet
Non-Stocked Lead-Time 13 Weeks
Min.: 1
Mult.: 1

SMD/SMT TSSOP-20 ARM Cortex M0 32 bit 48 MHz 32 kB 4 kB 12 bit 14 I/O 1.656 V 1.944 V + 85 C Tube
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M0 Low-volt line 1,8V MCU 32 Kbytes of Flash 48 MHz CPU, U
Datasheet
Non-Stocked Lead-Time 13 Weeks
Min.: 2,940
Mult.: 2,940

SMD/SMT UFQFPN-32 ARM Cortex M0 32 bit 48 MHz 32 kB 4 kB 12 bit 26 I/O 1.656 V 1.944 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
Non-Stocked Lead-Time 13 Weeks
Min.: 1
Mult.: 1
Reel: 2,500

TSSOP-20 16 kB Reel, Cut Tape
STMicroelectronics ARM Microcontrollers - MCU ARM Cortex-M0 MCU 16Kb Flash 48MHz
Datasheet
Non-Stocked Lead-Time 13 Weeks
Min.: 2,400
Mult.: 2,400
Reel: 2,400

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 Reel
STMicroelectronics ARM Microcontrollers - MCU ARM Cortex M0 16kB 48 MHz CPU 8kB Flash
Datasheet
Non-Stocked Lead-Time 13 Weeks
Min.: 1,000
Mult.: 1,000
Reel: 1,000

SMD/SMT LQFP-64 ARM Cortex M0 32 bit 48 MHz 16 kB 8 kB 12 bit 55 I/O 2 V 3.6 V + 85 C Reel
STMicroelectronics ARM Microcontrollers - MCU Entry Level ARM M0 16 Kbytes 48 MHz
Datasheet
Non-Stocked Lead-Time 13 Weeks
Min.: 1,000
Mult.: 1,000
Reel: 1,000

SMD/SMT LQFP-64 ARM Cortex M0 32 bit 48 MHz 32 kB 8 kB 12 bit 55 I/O 2 V 3.6 V + 85 C Reel
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M0 Access line MCU 128 Kbytes of Flash 48 MHz CPU & CEC fu
Datasheet
Non-Stocked Lead-Time 13 Weeks
Min.: 1
Mult.: 1
Reel: 2,400

SMD/SMT ARM Cortex M0 32 bit 48 MHz 128 kB 16 kB 12 bit 37 I/O 2 V 3.6 V + 85 C Reel, Cut Tape
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M0 Access line MCU 128 Kbytes of Flash 48 MHz CPU & CEC fu
Datasheet
Non-Stocked Lead-Time 13 Weeks
Min.: 2,500
Mult.: 2,500
Reel: 2,500

Reel
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M0 Access line MCU 64 Kbytes of Flash 48 MHz CPU & CEC fun
Datasheet
Non-Stocked Lead-Time 13 Weeks
Min.: 2,496
Mult.: 2,496

Tray