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 (GBP) Filter the results in the table by unit price based on your quantity.
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Supply Voltage - Max
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STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex M0 64 Kbytes 2.0 - 3.6V
Datasheet
13,939In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 ARM Cortex M0 32 bit 48 MHz 64 kB 8 kB 12 bit 39 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex M3 M3 72MHz 64pins
Datasheet
32,155In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT LQFP-64 ARM Cortex M3 32 bit 72 MHz 256 kB 48 kB 12 bit 51 I/O 2 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex 128kb Connectivity
Datasheet
16,258In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

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 Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU DSP FPU ARM CortexM4 2Mb Flash 180MHz
Datasheet
9,138In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-176 ARM Cortex M4 32 bit 180 MHz 2 MB 260 kB 12 bit 140 I/O 1.7 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU High-performance advanced line, Arm Cortex-M4 core DSP & FPU, 512 Kbytes of Flas
Datasheet
12,818In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M4 32 bit 180 MHz 512 kB 260 kB 12 bit 82 I/O 1.7 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
12,976In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 ARM Cortex M3 32 bit 32 MHz 32 kB 10 kB 12 bit 37 I/O 1.65 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32-Bit Arm Cortex M3 128kb UltralowPower
Datasheet
10,686In 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 32BIT Cortex M3 L/D Performance LINE
Datasheet
1,144In Stock
Min.: 1
Mult.: 1

SMD/SMT UFQFPN-36 ARM Cortex M3 32 bit 72 MHz 32 kB 10 kB 12 bit 26 I/O 2 V 3.6 V + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M0 USB line MCU 64 Kbytes of Flash 48 MHz CPU, USB, CAN &
Datasheet
2,085In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT LQFP-64 ARM Cortex M0 32 bit 48 MHz 64 kB 16 kB 12 bit 51 I/O 2 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU Low Medium Value Line Advanced ARM
Datasheet
1,549In Stock
Min.: 1
Mult.: 1

SMD/SMT ARM Cortex M3 32 bit 24 MHz 128 kB 8 kB 12 bit 51 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
1,000In Stock
1,000Expected 26/03/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 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 32-Bit ARM Cortex 1024kb Connectivity
Datasheet
1,947In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT WLCSP-64 ARM Cortex M3 32 bit 120 MHz 1 MB 128 kB 1.8 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 512kB
Datasheet
623In 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
2,813In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M4 32 bit 72 MHz 64 kB 16 kB 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
605In Stock
Min.: 1
Mult.: 1

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 Tray
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex M4 72MHz 256kB MCU FPU
Datasheet
2,712In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M4 32 bit 72 MHz 256 kB 40 kB 2 x 6 bit/8 bit/10 bit/12 bit 87 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex M4 72MHz 64kB MCU FPU
Datasheet
4,929In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M4 32 bit 72 MHz 64 kB 16 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
2,757In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M4 32 bit 84 MHz 128 kB 64 kB 12 bit 50 I/O 1.7 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU DSP FPU ARM CortexM4 2Mb Flash 168MHz
Datasheet
6,911In Stock
Min.: 1
Mult.: 1

SMD/SMT BGA-176 ARM Cortex M4 32 bit 180 MHz 2 MB 256 kB 3 x 12 bit 140 I/O 1.7 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32B ARM Cortex-M4 1Mb Flash 168MHz CPU
Datasheet
442In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-144 ARM Cortex M4 32 bit 180 MHz 1 MB 256 kB 3 x 12 bit 114 I/O 1.7 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
3,367In Stock
Min.: 1
Mult.: 1

BGA-100 1.65 V 3.6 V Tray
STMicroelectronics ARM Microcontrollers - MCU Entry-Level ARM M0 32kB 2.0V to 3.6V
Datasheet
1,082In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 ARM Cortex M0 32 bit 48 MHz 32 kB 8 kB 12 bit 39 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex M3 M3 72MHz 64pins
Datasheet
4,742In Stock
Min.: 1
Mult.: 1

SMD/SMT BGA-64 ARM Cortex M3 32 bit 72 MHz 128 kB 20 kB 12 bit 51 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex XL Density 1Mb Flash
Datasheet
945In Stock
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 + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32BIT CORTEX M3 128K Flash 20KB RAM
Datasheet
9,236In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

SMD/SMT LQFP-100 ARM Cortex M3 32 bit 72 MHz 128 kB 20 kB 12 bit 100 I/O 2 V 3.6 V + 85 C Reel, Cut Tape, MouseReel