256 kB Microcontrollers - MCU

Results: 4,017
Select Image Part # Mfr. Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity. Qty. RoHS Mounting Style Package / Case Core Data Bus Width Maximum Clock Frequency Program Memory Size Data RAM Size ADC Resolution Number of I/Os Supply Voltage - Min Supply Voltage - Max Maximum Operating Temperature Qualification Packaging
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex M4 72MHz 256kB MCU FPU 244In Stock
960On Order
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M4 32 bit 72 MHz 256 kB 40 kB 2 x 6 bit/8 bit/10 bit/12 bit 51 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Analog & DSP w/ FPU M4 256kB 72MHz 31In Stock
1,000Expected 9/10/2026
Min.: 1
Mult.: 1
: 1,000

SMD/SMT LQFP-64 ARM Cortex M4 32 bit 72 MHz 256 kB 40 kB 2 x 6 bit/8 bit/10 bit/12 bit 51 I/O 2 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex M4 72MHz 256kB MCU FPU 360In Stock
3,000On Order
Min.: 1
Mult.: 1

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 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash 28In Stock
5,000Expected 7/12/2027
Min.: 1
Mult.: 1
: 1,000

SMD/SMT LQFP-64 ARM Cortex M4 32 bit 72 MHz 256 kB 32 kB 4 x 6 bit/8 bit/10 bit/12 bit 52 I/O 2 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU Mainstream Mixed signals MCUs Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash 21In Stock
1,000Expected 12/28/2026
Min.: 1
Mult.: 1
: 1,000

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 2 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU 32-Bit ARM Cortex M4 72MHz 256kB MCU FPU 171In Stock
1,500Expected 11/5/2026
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 ARM Cortex M4 32 bit 72 MHz 256 kB 32 kB 12 bit, 3 x 16 bit 56 I/O 2 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Cost effective DSP FPU ARM CortexM4 MCU 250In Stock
7,800On Order
Min.: 1
Mult.: 1

SMD/SMT UFQFPN-48 ARM Cortex M4 32 bit 84 MHz 256 kB 64 kB 12 bit 36 I/O 1.7 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Cost effective DSP FPU ARM CortexM4 MCU 45In Stock
1,920On Order
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M4 32 bit 84 MHz 256 kB 64 kB 12 bit 50 I/O 1.7 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU High-performance access line, Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash 409In Stock
Min.: 1
Mult.: 1
: 1,000

SMD/SMT LQFP-64 ARM Cortex M4 32 bit 84 MHz 256 kB 64 kB 12 bit 50 I/O 1.7 V 3.6 V + 105 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU Cost effective DSP FPU ARM CortexM4 MCU 386In Stock
540Expected 12/11/2026
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M4 32 bit 84 MHz 256 kB 64 kB 12 bit 81 I/O 1.7 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU High-performance access line, Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Flash 21In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M4 32 bit 84 MHz 256 kB 64 kB 12 bit 81 I/O 1.7 V 3.6 V + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU High-performance foundation line, Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Fl 11In Stock
960Expected 9/10/2026
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M4 32 bit 180 MHz 256 kB 128 kB 3 x 12 bit 50 I/O 1.7 V 3.6 V + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU High-performance foundation line, Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Fl 31In Stock
1,000On Order
Min.: 1
Mult.: 1
: 1,000

SMD/SMT LQFP-64 ARM Cortex M4 32 bit 180 MHz 256 kB 128 kB 3 x 12 bit 50 I/O 1.7 V 3.6 V + 105 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU High-performance foundation line, Arm Cortex-M4 core DSP & FPU, 256 Kbytes of Fl 263In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M4 32 bit 180 MHz 256 kB 128 kB 3 x 12 bit 81 I/O 1.7 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170MHz 256Kbytes of Flash Math Accel, High Analog l 4In Stock
1,500On Order
Min.: 1
Mult.: 1
Max.: 100

SMD/SMT LQFP-48 ARM Cortex M4 32 bit 170 MHz 256 kB 128 kB 5 x 12 bit 42 I/O 1.71 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170MHz 256Kbytes of Flash Math Accel, High Analog l 5In Stock
1,560On Order
Min.: 1
Mult.: 1
Max.: 150

SMD/SMT UFQFPN-48 ARM Cortex M4 32 bit 170 MHz 256 kB 128 kB 5 x 12 bit 42 I/O 1.71 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170MHz 256Kbytes of Flash Math Accel, High Analog l 29In Stock
1,080On Order
Min.: 1
Mult.: 1
Max.: 150

SMD/SMT LQFP-100 ARM Cortex M4 32 bit 170 MHz 256 kB 128 kB 5 x 12 bit 86 I/O 1.71 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Mainstream Arm Cortex-M4 MCU 170 MHz 256 Kbytes of Flash Math Accel, HR Timer, H
4,800On Order
Min.: 1
Mult.: 1
Max.: 960

SMD/SMT LQFP-64 ARM Cortex M4 32 bit 170 MHz 256 kB 128 kB 5 x 12 bit 52 I/O 1.71 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power 32-bit Value Line Arm Cortex-M3 MCU 256 Kbytes of Flash 32 MHz C 141In Stock
Min.: 1
Mult.: 1
: 1,000

SMD/SMT LQFP-64 ARM Cortex M3 32 bit 32 MHz 256 kB 16 kB 12 bit 51 I/O 1.8 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash 52In Stock
9,000On Order
Min.: 1
Mult.: 1
Max.: 1,500

SMD/SMT LQFP-48 ARM Cortex M4 32 bit 80 MHz 256 kB 64 kB 12 bit 38 I/O 1.71 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash 52In Stock
4,800On Order
Min.: 1
Mult.: 1
Max.: 1,000
: 2,400

SMD/SMT LQFP-48 ARM Cortex M4 32 bit 80 MHz 256 kB 64 kB 12 bit 38 I/O 1.71 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash 55In Stock
5,000Expected 8/23/2027
Min.: 1
Mult.: 1
Max.: 200
: 5,000

SMD/SMT WLCSP-48 ARM Cortex M4 32 bit 80 MHz 256 kB 64 kB 12 bit 38 I/O 1.71 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash
5,880On Order
Min.: 1
Mult.: 1
Max.: 2,940

SMD/SMT UFQFPN-32 ARM Cortex M4 32 bit 80 MHz 256 kB 64 kB 12 bit 26 I/O 1.71 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash 26In Stock
2,496On Order
Min.: 1
Mult.: 1
Max.: 500

SMD/SMT UFBGA-100 ARM Cortex M4 32 bit 80 MHz 256 kB 64 kB 12 bit 83 I/O 1.71 V 3.6 V + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash , USB 43In Stock
11,760On Order
Min.: 1
Mult.: 1
Max.: 2,940

SMD/SMT UFQFPN-32 ARM Cortex M4 32 bit 80 MHz 256 kB 64 kB 12 bit 26 I/O 1.71 V 3.6 V + 125 C Tray