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
Maximum Operating Temperature
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NXP Semiconductors ARM Microcontrollers - MCU Kinetis KM34: 75MHz Cortex-M0+ Metrology MCU, 256KB Flash, 32KB SRAM, Segment LCD, 144-LQFP
Datasheet
300In Stock
Min.: 1
Mult.: 1

KM3x SMD/SMT LQFP-144 ARM Cortex M0+ 256 kB 32 bit 16 bit 75 MHz 99 I/O 32 kB 1.71 V 3.6 V - 40 C + 105 C Tray
Renesas Electronics ARM Microcontrollers - MCU MCU RA2 ARM CM23 48MHz 256K/32K QFP32
Datasheet
935In Stock
Min.: 1
Mult.: 1

RA2A1 SMD/SMT QFP-32 ARM Cortex M23 256 kB 32 bit 16 bit, 24 bit 48 MHz 18 I/O 32 kB 1.6 V 5.5 V - 40 C + 105 C Tray
Renesas Electronics ARM Microcontrollers - MCU MCU RA2 ARM CM23 48MHz 256K/32K QFP64
Datasheet
1,249In Stock
4Expected 2026/08/13
Min.: 1
Mult.: 1

RA2A1 SMD/SMT LQFP-64 ARM Cortex M23 256 kB 32 bit 16 bit, 24 bit 48 MHz 45 I/O 32 kB 1.6 V 5.5 V - 40 C + 105 C Tray
Renesas Electronics ARM Microcontrollers - MCU MCU RA4 ARM CM4 48MHz 256K/32K QFP64
Datasheet
1,364In Stock
3,520Expected 2026/08/13
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 RA4 ARM CM4 48MHz 256K/32K QFP100
Datasheet
403In Stock
Min.: 1
Mult.: 1

RA4M1 SMD/SMT LQFP-100 ARM Cortex M4 256 kB 32 bit 14 bit 48 MHz 84 I/O 32 kB 1.6 V 5.5 V - 40 C + 105 C Tray
Renesas Electronics ARM Microcontrollers - MCU MCU RA4 ARM CM33 100MHz 256K/128K QFN48
Datasheet
726In Stock
1,395Expected 2026/09/16
Min.: 1
Mult.: 1

RA4M2 SMD/SMT QFN-48 ARM Cortex M33 256 kB 32 bit 12 bit 100 MHz 29 I/O 128 kB 2.7 V 3.6 V - 40 C + 105 C Tray
Renesas Electronics ARM Microcontrollers - MCU MCU RA2L1 ARM CM23 48MHz 256K/32K QFP48
Datasheet
1,975In Stock
Min.: 1
Mult.: 1

RA2L1 SMD/SMT LQFP-48 ARM Cortex M23 256 kB 32 bit 12 bit 48 MHz 34 I/O 32 kB 1.6 V 5.5 V - 40 C + 85 C Tray
Renesas Electronics ARM Microcontrollers - MCU MCU RA4 ARM CM4 48MHz 256K/32K QFN64
Datasheet
587In Stock
Min.: 1
Mult.: 1

RA4M1 SMD/SMT QFN-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 RA6T1 ARM CM4 120MHz 256K/64K QFP64
Datasheet
510In Stock
Min.: 1
Mult.: 1

RA6T1 SMD/SMT LQFP-64 ARM Cortex M4 256 kB 32 bit 12 bit 120 MHz 40 I/O 64 kB 2.7 V 3.6 V - 40 C + 105 C Tray
Renesas Electronics ARM Microcontrollers - MCU MCU RA6T1 ARM CM4 120MHz 256K/64K QFP100
Datasheet
813In Stock
775On Order
Min.: 1
Mult.: 1

RA6T1 SMD/SMT QFP-100 ARM Cortex M4 256 kB 32 bit 12 bit 120 MHz 76 I/O 64 kB 2.7 V 3.6 V - 40 C + 105 C Tray
Texas Instruments ARM Microcontrollers - MCU Stellaris Cortex-M3 Fury 32-Bit ARM
Datasheet
386In Stock
Min.: 1
Mult.: 1

LM3S1968 SMD/SMT LQFP-100 ARM Cortex M3 256 kB 32 bit 10 bit 50 MHz 52 I/O 64 kB 2.25 V 2.75 V - 40 C + 85 C Tray
Texas Instruments ARM Microcontrollers - MCU Stellaris Cortex-M3 10/100 MAC PHY CAN
Datasheet
104In 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 256K Flash, 52K SRAM 32-bit ARM Cortex M3
Datasheet
178In Stock
Min.: 1
Mult.: 1

SAM3U SMD/SMT LQFP-100 ARM Cortex M3 256 kB 32 bit 12 bit 96 MHz 57 I/O 52 kB 1.62 V 1.95 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU TQFP, Green, IND TEMP, CRYPTO, MRL A
Datasheet
24In Stock
Min.: 1
Mult.: 1

SAM4L SMD/SMT TQFP-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 TQFP, Green, IND TEMP, CRYPTO, MRL A
Datasheet
130In Stock
Min.: 1
Mult.: 1

SAM4L SMD/SMT TQFP-48 ARM Cortex M4 256 kB 32 bit 12 bit 48 MHz 32 I/O 32 kB 1.62 V 1.98 V - 40 C + 85 C Tray

Microchip Technology ARM Microcontrollers - MCU QFNGREENIND
Datasheet
128In Stock
Min.: 1
Mult.: 1

SAM4S SMD/SMT QFN-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 QFN,GREEN,EXT TEMP,MRL B
Datasheet
260In Stock
Min.: 1
Mult.: 1
SAM4S SMD/SMT QFN-64 ARM Cortex M4 256 kB 32 bit 12 bit 120 MHz 47 I/O 64 kB 1.62 V 3.6 V - 40 C + 105 C Tray
Microchip Technology ARM Microcontrollers - MCU 64TQFP,85C TEMP, GREEN, 5V, 48MHZ, T&R
Datasheet
469In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

ATSAMC20 SMD/SMT TQFP-64 ARM Cortex M0+ 256 kB 32 bit 12 bit 48 MHz 52 I/O 32 kB 2.7 V 5.5 V - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Microchip Technology ARM Microcontrollers - MCU Cortx-M0+256KB FLASH
Datasheet
259In Stock
Min.: 1
Mult.: 1

SAMD1/2x SMD/SMT TQFP-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 Tray
Microchip Technology ARM Microcontrollers - MCU 32QFN 105C, GREEN,1.6-3.6V,48MHz
Datasheet
248In Stock
Min.: 1
Mult.: 1

SAMD1/2x 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 + 105 C Tray
Microchip Technology ARM Microcontrollers - MCU 48TQFP 105C, GREEN,1.6-3.6V,48MHz
Datasheet
193In Stock
Min.: 1
Mult.: 1

SAMD1/2x SMD/SMT TQFP-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 + 105 C Tray
Microchip Technology ARM Microcontrollers - MCU 32QFN 125C, GREEN,1.6-3.6V,48MHz
Datasheet
136In Stock
Min.: 1
Mult.: 1

SAMD21 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 + 125 C AEC-Q100 Tray

Microchip Technology ARM Microcontrollers - MCU CM4, QFN 64, 256KFlash,Tray, USB,Extended Temp
Datasheet
83In Stock
Min.: 1
Mult.: 1

ATSAMD51 SMD/SMT VQFN-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 CM4, QFN 64, 256KFlash,Tray, USB,Ethernet,Extended Temp
Datasheet
203In Stock
Min.: 1
Mult.: 1

ATSAME53 SMD/SMT VQFN-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 100TQFP 85C, GREEN,1.6-3.6V,32MHz
Datasheet
80In Stock
1,000Expected 2026/08/31
Min.: 1
Mult.: 1
: 1,000

SAML22 SMD/SMT TQFP-100 ARM Cortex M0+ 256 kB 32 bit 12 bit 32 MHz 82 I/O 32 kB 1.62 V 3.63 V - 40 C + 85 C Reel, Cut Tape