STM32F3 High-Performance ARM® Cortex™-M4 MCUs

STMicroelectronics STM32 F3 Mixed-Signal MCUs combines a 32-bit ARM® Cortex®-M4 core (with FPU and DSP instructions) running at 72MHz with a high number of integrated analog peripherals leading to cost reduction at the application level and simplifying application design. Peripherals include ultra-fast comparators, op-amp with programmable gain, 12-bit DACs, ultra-fast 12-bit ADCs, precise 16-bit sigma-delta ADCs, core coupled memory SRAM, 144MHz advanced 16-bit pulse-width modulation timer, and high-resolution timer. It also includes a flexible interconnect matrix that allows autonomous communication between peripherals and saves CPU resources and power consumption. A high degree of compatibility with the STM32 F0 series guarantees outstanding efficiency when designing derivatives of applications at different performance levels.

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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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STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash
Datasheet
1,433In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,400

STM32F3 SMD/SMT LQFP-48 ARM Cortex M4 256 kB 32 bit 4 x 6 bit/8 bit/10 bit/12 bit 72 MHz 37 I/O 40 kB 2 V 3.6 V - 40 C + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex M4 72MHz 128kB MCU FPU
Datasheet
1,046In Stock
Min.: 1
Mult.: 1

STM32F3 SMD/SMT LQFP-64 ARM Cortex M4 128 kB 32 bit 4 x 6 bit/8 bit/10 bit/12 bit 72 MHz 52 I/O 32 kB 2 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 128 Kbytes of Flash
Datasheet
922In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

STM32F3 SMD/SMT LQFP-64 ARM Cortex M4 128 kB 32 bit 4 x 6 bit/8 bit/10 bit/12 bit 72 MHz 52 I/O 32 kB 2 V 3.6 V - 40 C + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 512 Kbytes of Flash
Datasheet
1,192In Stock
Min.: 1
Mult.: 1

STM32F3 SMD/SMT LQFP-100 ARM Cortex M4 512 kB 32 bit 4 x 6 bit/8 bit/10 bit/12 bit 72 MHz 82 I/O 64 kB 2 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 512 Kbytes of Flash
Datasheet
484In Stock
Min.: 1
Mult.: 1

STM32F3 SMD/SMT LQFP-144 ARM Cortex M4 512 kB 32 bit 4 x 6 bit/8 bit/10 bit/12 bit 72 MHz 115 I/O 64 kB 2 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 64 Kbytes of Flash 7
Datasheet
1,345In Stock
Min.: 1
Mult.: 1

STM32F3 SMD/SMT LQFP-32 ARM Cortex M4 64 kB 32 bit 2 x 6 bit/8 bit/10 bit/12 bit 72 MHz 35 I/O 12 kB 2 V 3.6 V - 40 C + 85 C Tray

STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 64 Kbytes of Flash 7
Datasheet
486In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,400

STM32F3 SMD/SMT LQFP-32 ARM Cortex M4 64 kB 32 bit 2 x 6 bit/8 bit/10 bit/12 bit 72 MHz 35 I/O 12 kB 2 V 3.6 V - 40 C + 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
618In Stock
2,880On Order
Min.: 1
Mult.: 1

STM32F3 SMD/SMT LQFP-64 ARM Cortex M4 64 kB 32 bit 2 x 6 bit/8 bit/10 bit/12 bit 72 MHz 51 I/O 12 kB 2 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 64 Kbytes of Flash 7
Datasheet
769In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

STM32F3 SMD/SMT LQFP-64 ARM Cortex M4 64 kB 32 bit 12 bit 72 MHz 51 I/O 12 kB 2 V 3.6 V - 40 C + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex M4 72MHz 256kB MCU FPU
Datasheet
186In Stock
1,500Expected 05/11/2026
Min.: 1
Mult.: 1

STM32F3 SMD/SMT LQFP-48 ARM Cortex M4 256 kB 32 bit 12 bit, 3 x 16 bit 72 MHz 56 I/O 32 kB 2 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex M4 72MHz 256kB MCU FPU
Datasheet
1,880In Stock
Min.: 1
Mult.: 1

STM32F3 SMD/SMT LQFP-100 ARM Cortex M4 256 kB 32 bit 12 bit, 3 x 16 bit 72 MHz 129 I/O 32 kB 2 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 64 Kbytes of Flash 7
Datasheet
104In Stock
1,500On Order
Min.: 1
Mult.: 1

STM32F3 SMD/SMT LQFP-48 ARM Cortex M4 64 kB 32 bit 12 bit 72 MHz 37 I/O 16 kB 2 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 64 Kbytes of Flash 7
Datasheet
61In Stock
2,940On Order
Min.: 1
Mult.: 1

STM32F3 SMD/SMT UFQFPN-32 ARM Cortex M4 32 kB 32 bit 12 bit 72 MHz 24 I/O 16 kB 2 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 64 Kbytes of Flash 7
Datasheet
6In Stock
960On Order
Min.: 1
Mult.: 1

STM32F3 SMD/SMT LQFP-64 ARM Cortex M4 64 kB 32 bit 12 bit 72 MHz 51 I/O 16 kB 2 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex M4 72MHz 256kB MCU FPU
Datasheet
244In Stock
960On Order
Min.: 1
Mult.: 1

STM32F3 SMD/SMT LQFP-64 ARM Cortex M4 256 kB 32 bit 2 x 6 bit/8 bit/10 bit/12 bit 72 MHz 51 I/O 40 kB 2 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Analog & DSP w/ FPU M4 256kB 72MHz
Datasheet
31In Stock
1,000Expected 21/09/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

STM32F3 SMD/SMT LQFP-64 ARM Cortex M4 256 kB 32 bit 2 x 6 bit/8 bit/10 bit/12 bit 72 MHz 51 I/O 40 kB 2 V 3.6 V - 40 C + 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
136In Stock
1,500Expected 04/01/2027
Min.: 1
Mult.: 1

STM32F3 SMD/SMT LQFP-48 ARM Cortex M4 128 kB 32 bit 4 x 6 bit/8 bit/10 bit/12 bit 72 MHz 37 I/O 40 kB 2 V 3.6 V - 40 C + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 128 Kbytes of Flash
Datasheet
223In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,400

STM32F3 SMD/SMT LQFP-48 ARM Cortex M4 128 kB 32 bit 4 x 6 bit/8 bit/10 bit/12 bit 72 MHz 37 I/O 40 kB 2 V 3.6 V - 40 C + 105 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex M4 72MHz 256kB MCU FPU
Datasheet
386In Stock
3,000Expected 22/03/2027
Min.: 1
Mult.: 1

STM32F3 SMD/SMT LQFP-48 ARM Cortex M4 256 kB 32 bit 4 x 6 bit/8 bit/10 bit/12 bit 72 MHz 37 I/O 40 kB 2 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 384 Kbytes of Flash
Datasheet
145In Stock
Min.: 1
Mult.: 1

STM32F3 SMD/SMT LQFP-64 ARM Cortex M4 384 kB 32 bit 4 x 6 bit/8 bit/10 bit/12 bit 72 MHz 51 I/O 64 kB 2 V 3.6 V - 40 C + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 512 Kbytes of Flash
Datasheet
22In Stock
2,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

STM32F3 SMD/SMT LQFP-64 ARM Cortex M4 512 kB 32 bit 4 x 6 bit/8 bit/10 bit/12 bit 72 MHz 51 I/O 64 kB 2 V 3.6 V - 40 C + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash
Datasheet
66In Stock
1,000Expected 28/12/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

STM32F3 SMD/SMT LQFP-100 ARM Cortex M4 256 kB 32 bit 4 x 6 bit/8 bit/10 bit/12 bit 72 MHz 87 I/O 40 kB 2 V 3.6 V - 40 C + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash
Datasheet
23In Stock
2,160On Order
Min.: 1
Mult.: 1

STM32F3 SMD/SMT LQFP-100 ARM Cortex M4 256 kB 32 bit 4 x 6 bit/8 bit/10 bit/12 bit 72 MHz 87 I/O 40 kB 2 V 3.6 V - 40 C + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 512 Kbytes of Flash
Datasheet
155In Stock
1,000Expected 14/12/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

STM32F3 SMD/SMT LQFP-100 ARM Cortex M4 512 kB 32 bit 4 x 6 bit/8 bit/10 bit/12 bit 72 MHz 82 I/O 64 kB 2 V 3.6 V - 40 C + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 512 Kbytes of Flash
Datasheet
13In Stock
Min.: 1
Mult.: 1

STM32F3 SMD/SMT LQFP-144 ARM Cortex M4 512 kB 32 bit 4 x 6 bit/8 bit/10 bit/12 bit 72 MHz 115 I/O 64 kB 2 V 3.6 V - 40 C + 105 C Tray