256 kB Embedded Processors & Controllers

Results: 4,674
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Description Datasheet Availability Pricing (GBP) Filter the results in the table by unit price based on your quantity.
Qty. RoHS Product Type
Mounting Style
Package/Case
Core
Data Bus Width
Maximum Clock Frequency
Program Memory Size
L1 Cache Instruction Memory
L1 Cache Data Memory
Data RAM Size
ADC Resolution
Number of I/Os
Minimum Operating Temperature
Maximum Operating Temperature
Qualification
Packaging
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

ARM Microcontrollers - MCU SMD/SMT ARM Cortex M4 32 bit 72 MHz 256 kB 40 kB 2 x 6 bit/8 bit/10 bit/12 bit 87 I/O - 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
1,435In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,400

ARM Microcontrollers - MCU SMD/SMT LQFP-48 ARM Cortex M4 32 bit 72 MHz 256 kB 40 kB 4 x 6 bit/8 bit/10 bit/12 bit 37 I/O - 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
658In Stock
1,080On Order
Min.: 1
Mult.: 1

ARM Microcontrollers - MCU SMD/SMT LQFP-100 ARM Cortex M4 32 bit 72 MHz 256 kB 40 kB 4 x 6 bit/8 bit/10 bit/12 bit 87 I/O - 40 C + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 256 KBytes of Flash
Datasheet
929In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

ARM Microcontrollers - MCU SMD/SMT LQFP-64 ARM Cortex M4 32 bit 72 MHz 256 kB 32 kB 12 bit, 3 x 16 bit 80 I/O - 40 C + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex M4 72MHz 256kB MCU FPU
Datasheet
1,905In Stock
Min.: 1
Mult.: 1

ARM Microcontrollers - MCU SMD/SMT LQFP-100 ARM Cortex M4 32 bit 72 MHz 256 kB 32 kB 12 bit, 3 x 16 bit 129 I/O - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Cost effective DSP FPU ARM CortexM4 MCU
Datasheet
2,957In Stock
7,800On Order
Min.: 1
Mult.: 1

ARM Microcontrollers - MCU SMD/SMT UFQFPN-48 ARM Cortex M4 32 bit 84 MHz 256 kB 64 kB 12 bit 36 I/O - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU High-performance access line, Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash
Datasheet
1,470In Stock
5,000Expected 17/12/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

ARM Microcontrollers - MCU SMD/SMT UFQFPN-48 ARM Cortex M4 32 bit 84 MHz 256 kB 64 kB 12 bit 36 I/O - 40 C + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU High-performance access line, Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash
Datasheet
2,204In Stock
Min.: 1
Mult.: 1

ARM Microcontrollers - MCU SMD/SMT UFQFPN-48 ARM Cortex M4 32 bit 84 MHz 256 kB 64 kB 12 bit 36 I/O - 40 C + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU Cost effective DSP FPU ARM CortexM4 MCU
Datasheet
466In Stock
460Expected 17/09/2026
Min.: 1
Mult.: 1

ARM Microcontrollers - MCU SMD/SMT LQFP-100 ARM Cortex M4 32 bit 84 MHz 256 kB 64 kB 12 bit 81 I/O - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU High-performance access line, Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash
Datasheet
1,583In Stock
Min.: 1
Mult.: 1
: 2,500

ARM Microcontrollers - MCU SMD/SMT UFQFPN-48 ARM Cortex M4 32 bit 100 MHz 256 kB 128 kB 12 bit 36 I/O - 40 C + 85 C Reel, Cut Tape
STMicroelectronics ARM Microcontrollers - MCU STM32 Dyn Eff MCU 256 K 100 MHz CPU
Datasheet
951In Stock
Min.: 1
Mult.: 1

ARM Microcontrollers - MCU SMD/SMT LQFP-64 ARM Cortex M4 32 bit 100 MHz 256 kB 128 kB 12 bit 50 I/O - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU High-performance access line, Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash
Datasheet
944In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

ARM Microcontrollers - MCU SMD/SMT LQFP-64 ARM Cortex M4 32 bit 100 MHz 256 kB 128 kB 12 bit 50 I/O - 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
914In Stock
Min.: 1
Mult.: 1

ARM Microcontrollers - MCU SMD/SMT LQFP-100 ARM Cortex M4 32 bit 100 MHz 256 kB 128 kB 12 bit 81 I/O - 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

ARM Microcontrollers - MCU SMD/SMT LQFP-64 ARM Cortex M4 32 bit 180 MHz 256 kB 128 kB 3 x 12 bit 50 I/O - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex M0+ 32-bit MCU, up to 512KB Flash, 144KB RAM
Datasheet
3,561In Stock
3,120Expected 22/12/2026
Min.: 1
Mult.: 1
Max.: 750

ARM Microcontrollers - MCU SMD/SMT ARM Cortex M0+ 32 bit 64 MHz 256 kB 144 kB 12 bit 44 I/O - 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
1,080In Stock
2,940Expected 06/11/2026
Min.: 1
Mult.: 1
Max.: 300

ARM Microcontrollers - MCU SMD/SMT UFQFPN-32 ARM Cortex M0+ 32 bit 64 MHz 256 kB 144 kB 12 bit 30 I/O - 40 C + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170MHz 256Kbytes of Flash Math Accel, High Analog l
Datasheet
555In Stock
4,800Expected 31/08/2027
Min.: 1
Mult.: 1
Max.: 960

ARM Microcontrollers - MCU SMD/SMT LQFP-64 ARM Cortex M4 32 bit 170 MHz 256 kB 128 kB 5 x 12 bit 52 I/O - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Value Line M3 ARM 32 Kbytes 32 MHz
Datasheet
730In Stock
Min.: 1
Mult.: 1

ARM Microcontrollers - MCU SMD/SMT LQFP-64 ARM Cortex M3 32 bit 32 MHz 256 kB 16 kB 12 bit 51 I/O - 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

ARM Microcontrollers - MCU SMD/SMT LQFP-48 ARM Cortex M3 32 bit 32 MHz 256 kB 32 kB 12 bit 37 I/O - 40 C + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU Ultra Low M3 ARM 256 Kbytes 32 MHz
Datasheet
1,285In Stock
Min.: 1
Mult.: 1

ARM Microcontrollers - MCU SMD/SMT LQFP-48 ARM Cortex M3 32 bit 32 MHz 256 kB 32 kB 12 bit 37 I/O - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra Low M3 ARM 256 Kbytes 32 MHz
Datasheet
814In Stock
Min.: 1
Mult.: 1

ARM Microcontrollers - MCU SMD/SMT LQFP-64 ARM Cortex M3 32 bit 32 MHz 256 kB 32 kB 12 bit 51 I/O - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash
Datasheet
714In Stock
5,880Expected 06/11/2026
Min.: 1
Mult.: 1
Max.: 2,940

ARM Microcontrollers - MCU SMD/SMT UFQFPN-32 ARM Cortex M4 32 bit 80 MHz 256 kB 64 kB 12 bit 26 I/O - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash
Datasheet
56In Stock
21,000On Order
MouseReel Available
Min.: 1
Mult.: 1
Max.: 3,000
: 3,000

ARM Microcontrollers - MCU SMD/SMT QFN-32 ARM Cortex M4 32 bit 80 MHz 256 kB 64 kB 12 bit 26 I/O - 40 C + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash
Datasheet
1,903In Stock
Min.: 1
Mult.: 1
Max.: 300

ARM Microcontrollers - MCU SMD/SMT UFBGA-64 ARM Cortex M4 32 bit 80 MHz 256 kB 64 kB 12 bit 52 I/O - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash , USB
Datasheet
1,788In Stock
11,760Expected 06/11/2026
Min.: 1
Mult.: 1
Max.: 2,940

ARM Microcontrollers - MCU SMD/SMT UFQFPN-32 ARM Cortex M4 32 bit 80 MHz 256 kB 64 kB 12 bit 26 I/O - 40 C + 125 C Tray