256 kB Microcontrollers - MCU

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Core
Program Memory Size
Data Bus Width
ADC Resolution
Maximum Clock Frequency
Number of I/Os
Data RAM Size
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Supply Voltage - Max
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Maximum Operating Temperature
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Packaging
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 kbytes of Flash , DFSDM
Datasheet
2,036In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-48 ARM Cortex M4 256 kB 32 bit 12 bit 80 MHz 38 I/O 160 kB 1.71 V 3.6 V - 40 C + 125 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 kbytes of Flash USB Device, DFS
Datasheet
880In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M4 256 kB 32 bit 12 bit 80 MHz 83 I/O 160 kB 1.71 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 256 Kbytes of Flash USB OTG, DFSDM
Datasheet
1,341In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 ARM Cortex M4 256 kB 32 bit 3 x 12 bit 80 MHz 51 I/O 128 kB 1.71 V 3.6 V - 40 C + 125 C Tray
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power dual core Arm Cortex-M4 64MHz Cortex-M0+ 32MHz 256Kbytes Flash
Datasheet
1,692In Stock
Min.: 1
Mult.: 1

SMD/SMT UFQFPN-48 ARM Cortex M4 256 kB 32 bit 12 bit 32 MHz 72 I/O 256 kB 1.71 V 3.6 V - 40 C + 105 C Tray
Microchip Technology 32-bit Microcontrollers - MCU 256KB, 144LQFP Ind
Datasheet
655In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-144 AVR 256 kB 32 bit 10 bit 84 MHz 110 I/O 128 kB 3 V 3.6 V - 40 C + 85 C Tray
Microchip Technology 32-bit Microcontrollers - MCU 256KB, 64QFP 85deg. Green
Datasheet
325In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD/SMT TQFP-64 AVR 256 kB 32 bit 10 bit 60 MHz 44 I/O 32 kB 1.65 V 1.95 V - 40 C + 85 C Reel, Cut Tape, MouseReel
Microchip Technology 32-bit Microcontrollers - MCU 32-bit
Datasheet
743In Stock
1,500Expected 2026/09/14
Min.: 1
Mult.: 1

SMD/SMT TQFP-48 AVR 256 kB 32 bit 10 bit 60 MHz 28 I/O 32 kB 1.65 V 1.95 V - 40 C + 85 C Tray
Microchip Technology 32-bit Microcontrollers - MCU UC3C 256K FLASH 64K SRAM
Datasheet
609In Stock
Min.: 1
Mult.: 1
: 1,500

AVR 256 kB 32 bit 66 MHz 45 I/O 64 kB 3 V 5.5 V - 40 C + 85 C Reel, Cut Tape
Microchip Technology 32-bit Microcontrollers - MCU UC3C 512K FLASH 64K SRAM
Datasheet
403In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-64 AVR 256 kB 32 bit 12 bit 66 MHz 45 I/O 64 kB 3 V 5.5 V - 40 C + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU AVR 256K FLSH 4K EE 8K SRAM ADC 5V-16MHz
Datasheet
455In Stock
1,000Expected 2027/03/05
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

SMD/SMT TQFP-64 AVR 256 kB 8 bit 10 bit 16 MHz 54 I/O 8 kB 4.5 V 5.5 V - 40 C + 85 C Reel, Cut Tape, MouseReel

Microchip Technology 8-bit Microcontrollers - MCU AVR 256K FLASH 4K EE 8K SRAM ADC 1.8V
Datasheet
806In Stock
Min.: 1
Mult.: 1

SMD/SMT MLF-64 AVR 256 kB 8 bit 10 bit 8 MHz 54 I/O 8 kB 1.8 V 5.5 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU MRL A 256K Flash 48K SRAM Ind Temp
Datasheet
1,756In Stock
Min.: 1
Mult.: 1

SMD/SMT QFP-64 ARM Cortex M3 256 kB 32 bit 12 bit 64 MHz 47 I/O 48 kB 1.62 V 1.9 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU TQFP, Green, IND TEMP, CRYPTO, MRL A
Datasheet
673In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-64 ARM Cortex M4 256 kB 32 bit 12 bit 48 MHz 48 I/O 32 kB 1.62 V 1.98 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU LQFPGRNIND TEMPMRL A
Datasheet
2,358In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 ARM Cortex M4 256 kB 32 bit 12 bit 120 MHz 34 I/O 64 kB 1.08 V 1.32 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU Cortx-M0+256KB FLASH
Datasheet
2,743In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

SMD/SMT QFN-32 ARM Cortex M0 256 kB 32 bit 12 bit 48 MHz 26 I/O 32 kB 1.62 V 1.95 V - 40 C + 85 C Reel, Cut Tape, MouseReel
Microchip Technology ARM Microcontrollers - MCU Cortex-M0+ 256KB FLASH 32KB SRAM
Datasheet
1,348In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

SMD/SMT QFN-48 ARM Cortex M0+ 256 kB 32 bit 12 bit 48 MHz 38 I/O 32 kB 1.62 V 1.95 V - 40 C + 85 C Reel, Cut Tape, MouseReel
Microchip Technology ARM Microcontrollers - MCU 64KB 8KB32TQFP GRN 1.6-3.6V 48MHz
Datasheet
747In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-32 ARM Cortex M0+ 256 kB 32 bit 12 bit 48 MHz 26 I/O 32 kB 1.62 V 3.63 V - 40 C + 85 C AEC-Q100 Tray
Microchip Technology ARM Microcontrollers - MCU 256KB 32QFN GRN 1.6-3.6V 48MHz
Datasheet
2,186In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 ARM Cortex M0+ 256 kB 32 bit 12 bit 48 MHz 26 I/O 32 kB 1.62 V 3.63 V - 40 C + 85 C AEC-Q100 Tray
Microchip Technology ARM Microcontrollers - MCU 256KB 32KB 48QFN GRN1.6-3.6V48MHz
Datasheet
499In Stock
832Expected 2026/10/09
Min.: 1
Mult.: 1

SMD/SMT QFN-48 ARM Cortex M0+ 256 kB 32 bit 12 bit 48 MHz 38 I/O 32 kB 1.62 V 3.63 V - 40 C + 85 C AEC-Q100 Tray
Microchip Technology ARM Microcontrollers - MCU 256KB 32KB 64TQFP GRN1.6-3.6V48MHz
Datasheet
1,692In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD/SMT TQFP-64 ARM Cortex M0+ 256 kB 32 bit 12 bit 48 MHz 52 I/O 32 kB 1.62 V 3.63 V - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Microchip Technology ARM Microcontrollers - MCU 120MHZ 256KB FLASH 6 4 TQFP PKG 85C
Datasheet
1,119In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-64 ARM Cortex M4F 256 kB 32 bit 12 bit 120 MHz 51 I/O 128 kB 1.71 V 3.6 V - 40 C + 85 C AEC-Q100 Tray
Microchip Technology ARM Microcontrollers - MCU 120MHZ 256KB FLASH 6 4 TQFP PKG IN 85C
Datasheet
1,351In Stock
Min.: 1
Mult.: 1
: 1,500

SMD/SMT TQFP-64 ARM Cortex M4F 256 kB 32 bit 12 bit 120 MHz 51 I/O 128 kB 1.71 V 3.6 V - 40 C + 85 C AEC-Q100 Reel, Cut Tape
Microchip Technology ARM Microcontrollers - MCU CM4, TQFP 64, 256KFlash,Tray, USB,CAN ,Extended Temp
Datasheet
263In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-64 ARM Cortex M4F 256 kB 32 bit 12 bit 120 MHz 51 I/O 128 kB 1.71 V 3.6 V - 40 C + 125 C AEC-Q100 Tray

Microchip Technology ARM Microcontrollers - MCU 120MHZ 256KB FLASH 6 4 QFN PKG 85C
Datasheet
506In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-64 ARM Cortex M4F 256 kB 32 bit 12 bit 120 MHz 51 I/O 128 kB 1.71 V 3.6 V - 40 C + 85 C AEC-Q100 Tray
Microchip Technology ARM Microcontrollers - MCU 64TQFP 85C, GREEN,1.6-3.6V,32MHz
Datasheet
1,232In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD/SMT TQFP-64 ARM Cortex M0+ 256 kB 32 bit 12 bit 32 MHz 50 I/O 32 kB 1.62 V 3.63 V - 40 C + 85 C Reel, Cut Tape, MouseReel