STM32 F1 Mainstream MCUs

STMicroelectronics STM32 F1 Mainstream Microcontrollers (MCUs) cover the needs of a large variety of applications in the industrial, medical, and consumer markets. With this series, ST has pioneered the world of Arm® Cortex®-M microcontrollers and set a milestone in the history of embedded applications. High performance with first-class peripherals and low-power, low-voltage operation is paired with a high level of integration at accessible prices with a simple architecture and easy-to-use tools. These STMicroelectronics MCUs come with up to 72MHz CPU frequency, from 16KB to 1MB Flash, 4KB to 80KB of RAM, and a variety of embedded peripherals, such as USB, timers, USART, temperature sensor, ADC, and DAC.

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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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Core
Program Memory Size
Data Bus Width
ADC Resolution
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Supply Voltage - Min
Supply Voltage - Max
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STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex M3 M/D Performance LINE
Datasheet
4,054In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

STM32F103R8 SMD/SMT LQFP-64 ARM Cortex M3 64 kB 32 bit 12 bit 72 MHz 51 I/O 20 kB 2 V 3.6 V - 40 C + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex M3 64KB 20KB RAM 2X12 ADC
Datasheet
17,094In Stock
Min.: 1
Mult.: 1

STM32F103R8 SMD/SMT LQFP-64 ARM Cortex M3 64 kB 32 bit 12 bit 72 MHz 64 I/O 20 kB 2 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex M3 Performance LINE
Datasheet
4,047In Stock
Min.: 1
Mult.: 1

STM32F103ZE SMD/SMT LQFP-144 ARM Cortex M3 512 kB 32 bit 12 bit 72 MHz 112 I/O 64 kB 2 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex M3 M/D Performance LINE
Datasheet
9,364In Stock
Min.: 1
Mult.: 1

STM32F103CB SMD/SMT LQFP-48 ARM Cortex M3 128 kB 32 bit 12 bit 72 MHz 37 I/O 20 kB 2 V 3.6 V - 40 C + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU XL-Density Access Line 32-Bit 1G Flash
Datasheet
1,868In Stock
Min.: 1
Mult.: 1

STM32F103RG SMD/SMT LQFP-64 ARM Cortex M3 1 MB 32 bit 12 bit 72 MHz 112 I/O 96 kB 2 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex M3 H/D Performance LINE
Datasheet
3,675In Stock
Min.: 1
Mult.: 1

STM32F103VE SMD/SMT LQFP-100 ARM Cortex M3 512 kB 32 bit 12 bit 72 MHz 80 I/O 64 kB 2 V 3.6 V - 40 C + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU ARM Cortex M3 32-Bit 1Mbyte Flash 72 MHz
Datasheet
6,820In Stock
Min.: 1
Mult.: 1

STM32F103ZG SMD/SMT LQFP-144 ARM Cortex M3 1 MB 32 bit 12 bit 72 MHz 112 I/O 96 kB 2 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU XL-Density Access Line 32-Bit 768 Kb
Datasheet
6,059In Stock
Min.: 1
Mult.: 1

STM32F103RF SMD/SMT LQFP-64 ARM Cortex M3 768 kB 32 bit 12 bit 72 MHz 112 I/O 80 kB 2 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex 64/25 CONNECTIVITY LINE M3
Datasheet
6,878In Stock
Min.: 1
Mult.: 1

STM32F107VC SMD/SMT LQFP-100 ARM Cortex M3 256 kB 32 bit 12 bit 72 MHz 80 I/O 64 kB 2 V 3.6 V - 40 C + 85 C Tray

STMicroelectronics ARM Microcontrollers - MCU 32BIT CORTEX M3 128K Flash 20KB RAM
Datasheet
4,138In Stock
Min.: 1
Mult.: 1

STM32F103TB SMD/SMT VFQFPN-36 ARM Cortex M3 128 kB 32 bit 12 bit 72 MHz 26 I/O 20 kB 2 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex M3 512B Flash 100pin
Datasheet
28,657In Stock
Min.: 1
Mult.: 1

STM32F103VE SMD/SMT LQFP-100 ARM Cortex M3 512 kB 32 bit 12 bit 72 MHz 80 I/O 64 kB 2 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream ARM M3 1Mb 72 MHz USB CAN
Datasheet
11,709In Stock
Min.: 1
Mult.: 1

STM32F103VG SMD/SMT LQFP-100 ARM Cortex M3 1 MB 32 bit 12 bit 72 MHz 112 I/O 96 kB 2 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex XL Density 1Mb Flash
Datasheet
945In Stock
Min.: 1
Mult.: 1

STM32F103RG SMD/SMT LQFP-64 ARM Cortex M3 1 MB 32 bit 12 bit 72 MHz 112 I/O 96 kB 2 V 3.6 V - 40 C + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex M3 STM32F103 Eval BRD
Datasheet
2,213In Stock
Min.: 1
Mult.: 1

STM32F103ZE SMD/SMT BGA-144 ARM Cortex M3 512 kB 32 bit 12 bit 72 MHz 112 I/O 64 kB 2 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Low Medium Value Line Advanced ARM
Datasheet
1,549In Stock
Min.: 1
Mult.: 1

STM32F100R8 SMD/SMT ARM Cortex M3 128 kB 32 bit 12 bit 24 MHz 51 I/O 8 kB 2 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Performance line, Arm Cortex-M3 MCU 1 Mbyte of Flash 72 MHz CPU, moto
Datasheet
960In Stock
1,000Expected 26/03/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

STM32F103RG SMD/SMT LQFP-64 ARM Cortex M3 1 MB 32 bit 12 bit 72 MHz 112 I/O 96 kB 2 V 3.6 V - 40 C + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU 32BIT CORTEX M3 48PINS 128KB
Datasheet
1,081In Stock
Min.: 1
Mult.: 1

STM32F100CB SMD/SMT LQFP-48 ARM Cortex M3 128 kB 32 bit 12 bit 24 MHz 37 I/O 8 kB 2 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex 64 Kbyte Value Line
Datasheet
923In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

STM32F100R8 ARM Cortex M3 32 bit 2 V 3.6 V - 40 C + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex M3 128K 16KB RAM 1X12 ADC
Datasheet
537In Stock
Min.: 1
Mult.: 1

STM32F101RB SMD/SMT LQFP-64 ARM Cortex M3 128 kB 32 bit 12 bit 36 MHz 64 I/O 16 kB 2 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Performance line, Arm Cortex-M3 MCU 1 Mbyte of Flash 72 MHz CPU, moto
Datasheet
780In Stock
Min.: 1
Mult.: 1
Reel: 1,000

STM32F103VG SMD/SMT LQFP-144 ARM Cortex M3 1 MB 32 bit 12 bit 72 MHz 112 I/O 96 kB 2 V 3.6 V - 40 C + 85 C Reel, Cut Tape
STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex M3 L/D Performance LINE
Datasheet
1,578In Stock
Min.: 1
Mult.: 1

STM32F103ZE SMD/SMT LQFP-144 ARM Cortex M3 512 kB 32 bit 12 bit 72 MHz 112 I/O 64 kB 2 V 3.6 V - 40 C + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU ARM 32Bit Value Line 64-Pin 32kB Flash
Datasheet
1,875In Stock
Min.: 1
Mult.: 1

STM32F100RE SMD/SMT LQFP-64 ARM Cortex M3 512 kB 32 bit 12 bit 24 MHz 51 I/O 32 kB 2 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex 128kb Performance
Datasheet
843In Stock
Min.: 1
Mult.: 1

STM32F103CB SMD/SMT UQFN-48 ARM Cortex M3 128 kB 32 bit 12 bit 72 MHz 37 I/O 20 kB 2 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex M3 512KB Perform Line
Datasheet
2,633In Stock
Min.: 1
Mult.: 1

STM32F103ZE SMD/SMT BGA-144 ARM Cortex M3 512 kB 32 bit 12 bit 72 MHz 112 I/O 64 kB 2 V 3.6 V - 40 C + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32-Bit Cortex 64Kb Performance Line
Datasheet
14,804In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1,000

STM32F103VE SMD/SMT LQFP-100 ARM Cortex M3 512 kB 32 bit 12 bit 72 MHz 80 I/O 64 kB 2 V 3.6 V - 40 C + 85 C Reel, Cut Tape, MouseReel