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 High-performance advanced line, Arm Cortex-M4 core DSP & FPU, 2 Mbytes of Flash
Datasheet
628In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-208 ARM Cortex M4 32 bit 180 MHz 2 MB 260 kB 12 bit 168 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, 2 Mbytes of Flash
Datasheet
979In Stock
Min.: 1
Mult.: 1

SMD/SMT BGA-216 ARM Cortex M4 32 bit 180 MHz 2 MB 260 kB 12 bit 168 I/O 1.7 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU DSP FPU ARM CortexM4 2Mb Flash 180MHz
Datasheet
707In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M4 32 bit 180 MHz 2 MB 260 kB 12 bit 82 I/O 1.7 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU DSP FPU ARM CortexM4 1Mb Flash 180MHz
Datasheet
715In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-144 ARM Cortex M4 32 bit 180 MHz 1 MB 260 kB 12 bit 114 I/O 1.7 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32B ARM Cortex-M4 1Mb Flash 168MHz CPU
Datasheet
486In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M4 32 bit 180 MHz 1 MB 256 kB 3 x 12 bit 82 I/O 1.7 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32B ARM Cortex-M4 1Mb Flash 168MHz CPU
Datasheet
380In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-144 ARM Cortex M4 32 bit 180 MHz 2 MB 256 kB 3 x 12 bit 114 I/O 1.7 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU DSP FPU ARM CortexM4 2Mb Flash 180MHz
Datasheet
779In 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 High-performance advanced line, Arm Cortex-M4 core DSP & FPU, 2 Mbytes of Flash
Datasheet
523In Stock
Min.: 1
Mult.: 1

SMD/SMT BGA-216 ARM Cortex M4 32 bit 180 MHz 2 MB 256 kB 3 x 12 bit 168 I/O 1.7 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU DSP FPU ARM CortexM4 2Mb Flash 180MHz
Datasheet
306In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M4 32 bit 180 MHz 2 MB 256 kB 3 x 12 bit 82 I/O 1.7 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU DSP FPU ARM CortexM4 1Mb Flash 180MHz
Datasheet
440In 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 High-performance & DSP DP-FPU, Arm Cortex-M7 MCU 2MBytes of Flash 1MB RAM, 480 M
Datasheet
379In Stock
800Expected 2026-03-16
Min.: 1
Mult.: 1

SMD/SMT LQFP-176 ARM Cortex M7 32 bit 480 MHz 2 MB 1 MB 3 x 16 bit 140 I/O 1.62 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 32 Kbytes of Flash , 32 MHz CPU
Datasheet
4,414In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 ARM Cortex M0+ 32 bit 32 MHz 32 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-M0+ MCU 64 Kbytes of Flash , 32 MHz CPU
Datasheet
1,479In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 ARM Cortex M0+ 32 bit 32 MHz 64 kB 8 kB 12 bit 37 I/O 1.8 V 3.6 V + 125 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 64 Kbytes of Flash , 32 MHz CPU
Datasheet
1,732In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 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-M0+ MCU 64 Kbytes of Flash , 32 MHz CPU
Datasheet
1,874In 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 + 105 C Tray

STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 32 Kbytes of Flash , 32 MHz CPU
Datasheet
5,171In Stock
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT ARM Cortex M0+ 32 bit 32 MHz 32 kB 8 kB 12 bit 27 I/O 1.8 V 3.6 V + 85 C Reel, Cut Tape
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 64 Kbytes of Flash , 32 MHz CPU
Datasheet
3,385In Stock
Min.: 1
Mult.: 1

SMD/SMT UFQFPN-32 ARM Cortex M0+ 32 bit 32 MHz 64 kB 8 kB 12 bit 27 I/O 1.8 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
Datasheet
3,490In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT UFQFPN-32 ARM Cortex M0+ 32 bit 32 MHz 64 kB 8 kB 12 bit 27 I/O 1.8 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU Ultra-low power Arm Cortex-M0+ MCU 64 Kbytes of Flash , 32 MHz CPU, USB
Datasheet
6,598In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 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-M0+ MCU 32 Kbytes of Flash , 32 MHz CPU, USB
Datasheet
6,706In Stock
Min.: 1
Mult.: 1

SMD/SMT UFQFPN-32 ARM Cortex M0+ 32 bit 32 MHz 32 kB 8 kB 12 bit 27 I/O 1.65 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low power Arm Cortex-M0+ MCU 64-Kbyte of Flash , 32 MHz CPU, USB
Datasheet
1,362In Stock
1,500Expected 2026-04-21
Min.: 1
Mult.: 1

SMD/SMT LQFP-32 ARM Cortex M0+ 32 bit 32 MHz 64 kB 8 kB 12 bit 27 I/O 1.8 V 3.6 V + 85 C Tray

STMicroelectronics ARM Microcontrollers - MCU Ultra-low power Arm Cortex-M0+ MCU 64-Kbyte of Flash , 32 MHz CPU, USB
Datasheet
1,152In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-32 ARM Cortex M0+ 32 bit 32 MHz 64 kB 8 kB 12 bit 27 I/O 1.8 V 3.6 V + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low power Arm Cortex-M0+ MCU 64-Kbyte of Flash , 32 MHz CPU, USB
Datasheet
2,521In Stock
Min.: 1
Mult.: 1

SMD/SMT UFQFPN-32 ARM Cortex M0+ 32 bit 32 MHz 64 kB 8 kB 12 bit 27 I/O 1.8 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low power Arm Cortex-M0+ MCU 64-Kbyte of Flash , 32 MHz CPU, USB
Datasheet
2,769In Stock
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT UFQFPN-32 ARM Cortex M0+ 32 bit 32 MHz 64 kB 8 kB 12 bit 27 I/O 1.8 V 3.6 V + 85 C Reel, Cut Tape
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 64 Kbytes of Flash , 32 MHz CPU, USB, LCD
Datasheet
3,057In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 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