256 kB ARM Microcontrollers - MCU

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Qty. RoHS ECAD Model Series
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Package/Case
Core
Program Memory Size
Data Bus Width
ADC Resolution
Maximum Clock Frequency
Number of I/Os
Data RAM Size
Supply Voltage - Min
Supply Voltage - Max
Minimum Operating Temperature
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STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 256 Kbytes of Flash 32 MHz CPU, USB, 2xOp-amp
Datasheet
3,005In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

STM32L151CC SMD/SMT UFQPFN-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
STMicroelectronics ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M33 Trust Zone, MCU 110 MHz 256 kbytes of Flash
Datasheet
3,699In Stock
3,120Expected 28/09/2026
Min.: 1
Mult.: 1
Max.: 750

STM32L5 SMD/SMT UFQFPN-48 ARM Cortex M33 256 kB 32 bit 2 x 12 bit 110 MHz 38 I/O 256 kB 1.71 V 3.6 V - 40 C + 85 C Tray
STMicroelectronics ARM Microcontrollers - MCU Sub-GHz Wireless Microcontrollers. Arm Cortex-M4 a.48 MHz 256 Kbytes of Flash 64
Datasheet
2,005In Stock
Min.: 1
Mult.: 1

STM32WL SMD/SMT UFQFPN-48 ARM Cortex M4 256 kB 32 bit 12 bit 48 MHz 43 I/O 64 kB 1.8 V 3.6 V - 40 C + 105 C Tray
Microchip Technology ARM Microcontrollers - MCU 256K Flash SRAM 64K ARM based MCU
Datasheet
4,019In Stock
Min.: 1
Mult.: 1

SAM7S/SE SMD/SMT LQFP-64 ARM7TDMI 256 kB 32 bit/16 bit 10 bit 55 MHz 32 I/O 64 kB 1.65 V 1.95 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU 32TQFP 125C, GREEN,1.6-3.6V,48MHz
Datasheet
6,137In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

SAMD21 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 + 125 C AEC-Q100 Reel, Cut Tape, MouseReel
Microchip Technology ARM Microcontrollers - MCU Low-Power, 32-bit Cortex-M0+ MCU with Advanced Analog and PWM
Datasheet
14,491In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

SAMD21 SMD/SMT VQFN-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 Reel, Cut Tape, MouseReel
Microchip Technology ARM Microcontrollers - MCU ARM Cortex-M0+ 256KBFlash 24KB SRAM
Datasheet
6,302In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

SAML21 SMD/SMT VQFN-48 ARM Cortex M0+ 256 kB 32 bit 12 bit 48 MHz 37 I/O 32 kB 1.62 V 3.63 V - 40 C + 85 C Reel, Cut Tape, MouseReel
Infineon Technologies ARM Microcontrollers - MCU 256K Flash 64K SRAM PSoC 5LP
Datasheet
2,048In Stock
7,200On Order
Min.: 1
Mult.: 1

CY8C58LPxxx SMD/SMT TQFP-100 ARM Cortex M3 256 kB 32 bit 12 bit 67 MHz 62 I/O 64 kB 1.71 V 1.89 V - 40 C + 85 C Tray
Infineon Technologies ARM Microcontrollers - MCU PSoC5LP
Datasheet
820In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-100 ARM Cortex M3 256 kB 32 bit 12 bit 80 MHz 62 I/O 64 kB 1.71 V 1.89 V - 40 C + 85 C Tray

Infineon Technologies ARM Microcontrollers - MCU 256KB Flash 64KBSRAM PSoC 5LP
Datasheet
3,039In Stock
1,040Expected 08/10/2026
Min.: 1
Mult.: 1

CY8C58LPxx SMD/SMT QFN-68 ARM Cortex M3 256 kB 32 bit 12 bit 80 MHz 38 I/O 64 kB 1.71 V 1.89 V - 40 C + 85 C Tray
Infineon Technologies ARM Microcontrollers - MCU USB-C HV MCU
Datasheet
8,095In Stock
Min.: 1
Mult.: 1

EZ-PD PMG1-S3 SMD/SMT BGA-97 ARM Cortex M0+ 256 kB 32 bit 12 bit 48 MHz 50 I/O 32 kB 2.8 V 5.5 V - 40 C + 85 C Tray
NXP Semiconductors ARM Microcontrollers - MCU Scalable Mainstream 32-bit Microcontroller (MCU) based on ARM Cortex-M3 Core
Datasheet
2,632In Stock
Min.: 1
Mult.: 1
: 1,000

LPC1700 SMD/SMT LQFP-80 ARM Cortex M3 256 kB 32 bit 12 bit 100 MHz 52 I/O 32 kB 2.4 V 3.6 V - 40 C + 85 C Reel, Cut Tape
NXP Semiconductors ARM Microcontrollers - MCU Single-chip 16/32-bit microcontrollers; 32/64/128/256/512 kB ISP/IAP flash with 10-bit ADC and DAC
Datasheet
928In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

LPC2100 SMD/SMT LQFP-64 ARM7TDMI-S 256 kB 32 bit/16 bit 10 bit 60 MHz 47 I/O 32 kB 3 V 3.6 V - 40 C + 85 C Reel, Cut Tape, MouseReel
NXP Semiconductors ARM Microcontrollers - MCU Single-chip 16/32-bit microcontrollers; 32/64/128/256/512 kB ISP/IAP flash with 10-bit ADC and DAC
Datasheet
908In Stock
Min.: 1
Mult.: 1

LPC2100 SMD/SMT ARM7TDMI-S 256 kB 32 bit/16 bit 10 bit 60 MHz 47 I/O 32 kB 3.3 V 3.3 V - 40 C + 85 C Tray
NXP Semiconductors ARM Microcontrollers - MCU LPC5506JBD64
Datasheet
5,191In Stock
Min.: 1
Mult.: 1

LPC550x SMD/SMT HTQFP-64 ARM Cortex M33 256 kB 32 bit 16 bit 96 MHz 45 I/O 96 kB 1.8 V 3.6 V - 40 C + 105 C Tray
NXP Semiconductors ARM Microcontrollers - MCU Kinetis 256K Flex
Datasheet
2,107In Stock
Min.: 1
Mult.: 1

K10_72 SMD/SMT LQFP-64 ARM Cortex M4 256 kB 32 bit 2 x 16 bit 72 MHz 44 I/O 64 kB 1.71 V 3.6 V - 40 C + 105 C Tray
NXP Semiconductors ARM Microcontrollers - MCU 32Bit MCU 256KB Flash
Datasheet
2,224In Stock
Min.: 1
Mult.: 1

K22_120 SMD/SMT LQFP-64 ARM Cortex M4 256 kB 32 bit 16 bit 120 MHz 40 I/O 48 kB 1.71 V 3.6 V - 40 C + 105 C Tray
Renesas Electronics ARM Microcontrollers - MCU MCU RA4 ARM CM4 48MHz 256K/32K QFP64
Datasheet
4,629In Stock
Min.: 1
Mult.: 1

RA4M1 SMD/SMT LQFP-64 ARM Cortex M4 256 kB 32 bit 14 bit 48 MHz 52 I/O 32 kB 1.6 V 5.5 V - 40 C + 105 C Tray
Renesas Electronics ARM Microcontrollers - MCU MCU RA2L1 ARM CM23 48MHz 256K/32K QFP64
Datasheet
15,048In Stock
597Expected 02/10/2026
Min.: 1
Mult.: 1

RA2L1 SMD/SMT QFP-64 ARM Cortex M23 256 kB 32 bit 12 bit 48 MHz 53 I/O 32 kB 1.6 V 5.5 V - 40 C + 85 C Tray
Texas Instruments ARM Microcontrollers - MCU Stellaris Cortex-M3 10/100 MAC PHY CAN
Datasheet
74In Stock
Min.: 1
Mult.: 1

LM3S8970 SMD/SMT LQFP-100 ARM Cortex M3 256 kB 32 bit No ADC 50 MHz 46 I/O 64 kB 2.25 V 2.75 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU TFBGA GRN IND TEMP MRL C
Datasheet
541In Stock
Min.: 1
Mult.: 1

SAM7X/XC SMD/SMT TFBGA-100 ARM7TDMI 256 kB 32 bit 10 bit 20 MHz 62 I/O 64 kB 1.65 V 1.95 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU 256K Flash, 52K SRAM 32-bit ARM Cortex M3
Datasheet
1,646In Stock
Min.: 1
Mult.: 1

SAM3U SMD/SMT LQFP-144 ARM Cortex M3 256 kB 32 bit 12 bit 96 MHz 96 I/O 52 kB 1.62 V 1.95 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU QFP100,GREEN IND TEMP, MRL A
Datasheet
160In Stock
Min.: 1
Mult.: 1

SAM3X SMD/SMT LQFP-100 ARM Cortex M3 256 kB 32 bit 12 bit 84 MHz 63 I/O 64 kB 1.62 V 1.95 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU QFN,GREEN,IND TEMP CRYPTO MRL A
Datasheet
377In Stock
Min.: 1
Mult.: 1

SAM4L SMD/SMT QFN-64 ARM Cortex M4 256 kB 32 bit 12 bit 48 MHz 43 I/O 32 kB 1.62 V 1.98 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU 32TQFP,105C TEMP, GREEN, 5V, 48MHZ, T&R
Datasheet
3,308In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

ATSAMC21 SMD/SMT TQFP-32 ARM Cortex M0+ 256 kB 32 bit 2 x 12 bit 48 MHz 26 I/O 32 kB 2.7 V 5.5 V - 40 C + 105 C AEC-Q100 Reel, Cut Tape, MouseReel