256 kB Microcontrollers - MCU

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Description Datasheet Availability Pricing (PHP) 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 - Max
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STMicroelectronics ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 256kB
Datasheet
865In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M3 256 kB 32 bit 12 bit 120 MHz 82 I/O 96 kB 1.8 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU 32BIT ARM Cortex M3 Connectivity 128kB
Datasheet
172In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-144 ARM Cortex M3 256 kB 32 bit 12 bit 120 MHz 114 I/O 96 kB 1.8 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Hi-perf ARM Cortex M3 MCU 256Kb
Datasheet
247In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 500

SMD/SMT LQFP-144 ARM Cortex M3 256 kB 32 bit 12 bit 120 MHz 114 I/O 96 kB 1.8 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
1,001In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 ARM Cortex M4 256 kB 32 bit 2 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, 256 Kbytes of Flash
Datasheet
925In Stock
3,000On Order
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 ARM Cortex M4 256 kB 32 bit 2 x 6 bit/8 bit/10 bit/12 bit 72 MHz 37 I/O 16 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, 256 Kbytes of Flash
Datasheet
361In Stock
Min.: 1
Mult.: 1
: 1,000

SMD/SMT ARM Cortex M4 256 kB 32 bit 2 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
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash
Datasheet
1,439In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,400

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 256kB MCU FPU
Datasheet
311In Stock
1,500Expected 05/11/2026
Min.: 1
Mult.: 1

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
2,047In Stock
Min.: 1
Mult.: 1

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 Cost effective DSP FPU ARM CortexM4 MCU
Datasheet
943In Stock
7,800On Order
Min.: 1
Mult.: 1

SMD/SMT UFQFPN-48 ARM Cortex M4 256 kB 32 bit 12 bit 84 MHz 36 I/O 64 kB 1.7 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU High-performance access line, Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash
Datasheet
2,381In Stock
7,490On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

SMD/SMT UFQFPN-48 ARM Cortex M4 256 kB 32 bit 12 bit 84 MHz 36 I/O 64 kB 1.7 V 3.6 V - 40 C + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU Cost effective DSP FPU ARM CortexM4 MCU
Datasheet
412In Stock
540Expected 11/12/2026
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M4 256 kB 32 bit 12 bit 84 MHz 81 I/O 64 kB 1.7 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU High-performance access line, Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash
Datasheet
1,564In Stock
Min.: 1
Mult.: 1
: 2,500

SMD/SMT UFQFPN-48 ARM Cortex M4 256 kB 32 bit 12 bit 100 MHz 36 I/O 128 kB 1.7 V 3.6 V - 40 C + 85 C Reel, Cut Tape
STMicroelectronics ARM Microcontrollers - MCU STM32 Dyn Eff MCU 256 K 100 MHz CPU
Datasheet
943In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M4 256 kB 32 bit 12 bit 100 MHz 50 I/O 128 kB 1.7 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU High-performance access line, Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash
Datasheet
940In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

SMD/SMT LQFP-64 ARM Cortex M4 256 kB 32 bit 12 bit 100 MHz 50 I/O 128 kB 1.7 V 3.6 V - 40 C + 105 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU High-performance access line, Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash
Datasheet
925In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M4 256 kB 32 bit 12 bit 100 MHz 81 I/O 128 kB 1.7 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU High-performance foundation line, Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Fl
Datasheet
33In Stock
2,880On Order
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M4 256 kB 32 bit 3 x 12 bit 180 MHz 50 I/O 128 kB 1.7 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU High-performance & DSP FPU, Arm Cortex-M7 MCU 256 Kbytes of Flash 216 MHz CPU, A
Datasheet
624In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M7 256 kB 32 bit 3 x 12 bit 216 MHz 50 I/O 256 kB 1.7 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex M0+ 32-bit MCU, up to 512KB Flash, 144KB RAM
Datasheet
3,641In Stock
3,120On Order
Min.: 1
Mult.: 1

SMD/SMT ARM Cortex M0+ 256 kB 32 bit 12 bit 64 MHz 44 I/O 144 kB 1.7 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M0+ 32-bit MCU up to 512KB Flash 144KB RAM
Datasheet
662In Stock
19,500On Order
Min.: 1
Mult.: 1

SMD/SMT ARM Cortex M0+ 256 kB 32 bit 12 bit 64 MHz 42 I/O 144 kB 1.7 V 3.6 V - 40 C + 85 C Tray

STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M0+ 32-bit MCU up to 256KB 144KB RAM 6x USART timers ADC D
Datasheet
1,187In Stock
Min.: 1
Mult.: 1

SMD/SMT UFQFPN-32 ARM Cortex M0+ 256 kB 32 bit 12 bit 64 MHz 30 I/O 144 kB 1.7 V 3.6 V - 40 C + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170MHz 256Kbytes of Flash Math Accel, High Analog l
Datasheet
394In Stock
1,500On Order
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 ARM Cortex M4 256 kB 32 bit 5 x 12 bit 170 MHz 42 I/O 128 kB 1.71 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Value Line M3 ARM 32 Kbytes 32 MHz
Datasheet
741In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M3 256 kB 32 bit 12 bit 32 MHz 51 I/O 16 kB 1.8 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra Low M3 ARM 128 Kbytes 32 MHz
Datasheet
1,291In Stock
3,000Expected 17/12/2026
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 ARM Cortex M3 256 kB 32 bit 12 bit 32 MHz 37 I/O 32 kB 1.65 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 256 Kbytes of Flash 32 MHz CPU, USB, 2xOp-amp
Datasheet
1,525In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,400

SMD/SMT LQFP-48 ARM Cortex M3 256 kB 32 bit 12 bit 32 MHz 37 I/O 32 kB 1.65 V 3.6 V - 40 C + 85 C Reel, Cut Tape, MouseReel