ARM Cortex M3 Core Microcontrollers - MCU

Types of Microcontrollers - MCU
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Supply Voltage - Max
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Microchip Technology ARM Microcontrollers - MCU LQFP,Grn, IT, MRL A
Datasheet
5In Stock
Min.: 1
Mult.: 1

SMD/SMT QFP-64 ARM Cortex M3 32 bit 64 MHz 512 kB 64 kB 12 bit 47 I/O 1.62 V 1.9 V + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU 128K Flash, 36K SRAM 32-bit ARM Cortex M3
Datasheet
57In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-144 ARM Cortex M3 32 bit 96 MHz 128 kB 36 kB 12 bit 96 I/O 1.62 V 1.95 V + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU 128K Flash, 36K SRAM 32-bit ARM Cortex M
Datasheet
4In Stock
Min.: 1
Mult.: 1

SMD/SMT LFBGA-144 ARM Cortex M3 32 bit 96 MHz 128 kB 36 kB 12 bit 96 I/O 1.62 V 1.95 V + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU 256K Flash, 52K SRAM 32-bit ARM Cortex M3
Datasheet
178In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M3 32 bit 96 MHz 256 kB 52 kB 12 bit 57 I/O 1.62 V 1.95 V + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU 256K Flash, 52K SRAM 32-bit ARM Cortex M3
Datasheet
71In Stock
Min.: 1
Mult.: 1

SMD/SMT LFBGA-144 ARM Cortex M3 32 bit 96 MHz 256 kB 52 kB 12 bit 96 I/O 1.62 V 1.95 V + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU 128k Flash, 16k RAM, AES
Datasheet
132In Stock
3,000Expected 10/23/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT QFN-32 ARM Cortex M3 32 bit 32 MHz 128 kB 16 kB 12 bit 24 I/O 1.98 V 3.8 V + 85 C Reel, Cut Tape, MouseReel
Silicon Labs ARM Microcontrollers - MCU 128k Flash, 16k RAM, 4x40 LCD, AES
Datasheet
24In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M3 32 bit 32 MHz 128 kB 16 kB 12 bit 86 I/O 1.98 V 3.8 V + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU 1024k Flash, 128k RAM, AES
Datasheet
22In Stock
Min.: 1
Mult.: 1
: 1,000

SMD/SMT LQFP-100 ARM Cortex M3 32 bit 48 MHz 1.02 MB 128 kB 12 bit 85 I/O 1.98 V 3.8 V + 85 C Reel, Cut Tape

Silicon Labs ARM Microcontrollers - MCU 1024k Flash, 128k RAM, USB, 8x18 LCD, AES
Datasheet
322In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-64 ARM Cortex M3 32 bit 48 MHz 1.02 MB 128 kB 12 bit 52 I/O 1.98 V 3.8 V + 85 C Tray

Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB
Datasheet
57In Stock
2,600Expected 8/21/2026
Min.: 1
Mult.: 1

SMD/SMT QFN-64 ARM Cortex M3 32 bit 48 MHz 256 kB 32 kB 12 bit 53 I/O 1.98 V 3.8 V + 85 C Tray

Silicon Labs ARM Microcontrollers - MCU Tiny Gecko MCU IC
Datasheet
256In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

SMD/SMT QFN-24 ARM Cortex M3 32 bit 32 MHz 32 kB 4 kB 12 bit 17 I/O 1.98 V 3.8 V + 85 C Reel, Cut Tape, MouseReel
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M3 32-bit 40 MHz 128 kB MCU
Datasheet
78In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 ARM Cortex M3 32 bit 40 MHz 128 kB 32 kB 12 bit 24 I/O 1.85 V 3.8 V + 85 C Tray

Silicon Labs ARM Microcontrollers - MCU ARM Cortex-32-bit 50 MHz 256 kB LCD AES low power MCU
Datasheet
18In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-80 ARM Cortex M3 32 bit 50 MHz 256 kB 32 kB 10 bit, 12 bit 62 I/O 1.25 V 3.8 V + 85 C Tray
NXP Semiconductors ARM Microcontrollers - MCU Entry-level 32-bit Microcontroller (MCU) based on ARM Cortex-M3 Core
Datasheet
496In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 ARM Cortex M3 32 bit 72 MHz 32 kB 8 kB 10 bit 42 I/O 2 V 3.6 V + 85 C Tray
Infineon Technologies ARM Microcontrollers - MCU EMBEDDED_POWER
Datasheet
57In Stock
Min.: 1
Mult.: 1
: 2,500

SMD/SMT TQFP-48 ARM Cortex M3 32 bit 60 MHz 144 kB 144 kB 8 I/O 5.5 V 28 V + 175 C Reel, Cut Tape
STMicroelectronics ARM Microcontrollers - MCU 32B ARM Cortex-M3 Value line 16KB Flsh
Datasheet
59In Stock
2,400On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2,400

SMD/SMT ARM Cortex M3 32 bit 24 MHz 16 kB 4 kB 12 bit 37 I/O 2 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex 64 Kbyte Value Line
Datasheet
16In Stock
Min.: 1
Mult.: 1

SMD/SMT ARM Cortex M3 32 bit 24 MHz 64 kB 8 kB 12 bit 37 I/O 2 V 3.6 V + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32BIT CORTEX M3 Value Line 64KB
Datasheet
345In Stock
Min.: 1
Mult.: 1

SMD/SMT ARM Cortex M3 32 bit 24 MHz 64 kB 8 kB 12 bit 80 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU ARM 32Bit Value Line 100-Pin 32kB Flash
Datasheet
11In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

SMD/SMT ARM Cortex M3 32 bit 24 MHz 128 kB 8 kB 12 bit 80 I/O 2 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU MED-DENSTY ACCESS LN ARM-BASED 32-BIT MCU
Datasheet
2,500In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

SMD/SMT UFQFPN-48 ARM Cortex M3 32 bit 36 MHz 64 kB 10 kB 12 bit 2 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex M3 Access Line
Datasheet
64In Stock
960Expected 7/19/2027
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M3 32 bit 36 MHz 512 kB 48 kB 12 bit 51 I/O 2 V 3.6 V + 85 C Tray

STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex M3 L/D Access Line
Datasheet
10In Stock
Min.: 1
Mult.: 1

SMD/SMT UFQFPN-36 ARM Cortex M3 32 bit 36 MHz 32 kB 6 kB 12 bit 26 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex M3 64KB 20KB RAM 2X12 ADC
Datasheet
167In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M3 32 bit 36 MHz 64 kB 10 kB 12 bit 100 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex M3 H/D ACCESS USB MCU
Datasheet
99In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-144 ARM Cortex M3 32 bit 36 MHz 256 kB 32 kB 12 bit 112 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32BIT Cortex M3 ACCESS LINE
Datasheet
182In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-144 ARM Cortex M3 32 bit 36 MHz 512 kB 48 kB 12 bit 112 I/O 2 V 3.6 V + 85 C Tray