256 kB ARM Microcontrollers - MCU

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Program Memory Size
Data Bus Width
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Supply Voltage - Max
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STMicroelectronics ARM Microcontrollers - MCU Sub-GHz Wireless MCU Single-core Arm Cortex-M0+ 64 MHz 256 Kb Flash 32 Kb SRAM
Datasheet
22In Stock
Min.: 1
Mult.: 1

STM32WL33 SMD/SMT VFQFPN-48 ARM Cortex M0+ 256 kB 32 bit 12 bit 64 MHz 32 I/O 32 KB 1.7 V 3.6 V - 40 C + 105 C Tray
STMicroelectronics ARM Microcontrollers - MCU Multiprotocol LPWAN 32-bit Arm Cortex-M4 MCUs LoRa (G)FSK-MSK BPSK 256KB Flash
Datasheet
27In Stock
7,800On Order
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
STMicroelectronics ARM Microcontrollers - MCU Sub-GHz Wireless Microcontrollers. Arm Cortex-M4 a.48 MHz 256 Kbytes of Flash 64
Datasheet
576In Stock
5,000Expected 2/26/2027
MouseReel Available
Min.: 1
Mult.: 1
: 5,000

STM32WL SMD/SMT UFBGA-73 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 Reel, Cut Tape, MouseReel
Microchip Technology ARM Microcontrollers - MCU LQFP Green IND TEMP MRL B, T&R MRLC
Datasheet
10In Stock
2,000Expected 2/25/2027
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

SAM7X/XC SMD/SMT LQFP-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 Reel, Cut Tape, MouseReel
Microchip Technology ARM Microcontrollers - MCU MRL A 256K Flash 48K SRAM Ind Temp
Datasheet
6In Stock
Min.: 1
Mult.: 1

SAM3S SMD/SMT QFP-100 ARM Cortex M3 256 kB 32 bit 12 bit 64 MHz 79 I/O 48 kB 1.62 V 1.9 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU LQFPGREENIND
Datasheet
102In Stock
180Expected 10/21/2026
Min.: 1
Mult.: 1

SAM4S SMD/SMT LQFP-100 ARM Cortex M4 256 kB 32 bit 12 bit 120 MHz 79 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
352In Stock
4,000Expected 10/19/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2,000

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 Reel, Cut Tape, MouseReel

Microchip Technology ARM Microcontrollers - MCU 64QFN 125C, GREEN,1.6-3.6V,48MHz
Datasheet
226In Stock
Min.: 1
Mult.: 1

SAMD21 SMD/SMT QFN-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 + 125 C AEC-Q100 Tray
Microchip Technology ARM Microcontrollers - MCU 120MHZ 256KB FLASH 4 8 QFN PKG 85C
Datasheet
210In Stock
Min.: 1
Mult.: 1

ATSAMD51 SMD/SMT QFN-48 ARM Cortex M4F 256 kB 32 bit 12 bit 120 MHz 37 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 85C
Datasheet
81In Stock
160Expected 1/26/2027
Min.: 1
Mult.: 1

ATSAME51 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 ARM Cortex-M0+ 256KBFlash 40KB SRAM
Datasheet
18In Stock
1,500Expected 9/9/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SAML21 SMD/SMT TQFP-64 ARM Cortex M0+ 256 kB 32 bit 12 bit 48 MHz 51 I/O 32 kB 1.62 V 3.63 V - 40 C + 85 C Reel, Cut Tape, MouseReel

Microchip Technology ARM Microcontrollers - MCU ARM Cortex-M0+ 256KBFlash 40KB SRAM
Datasheet
8In Stock
4,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 4,000

SAML21 SMD/SMT VQFN-64 ARM Cortex M0+ 256 kB 32 bit 12 bit 48 MHz 51 I/O 32 kB 1.62 V 3.63 V - 40 C + 85 C Reel, Cut Tape, MouseReel
Microchip Technology ARM Microcontrollers - MCU CM23, ULP, Touch, 256K Flash, 48 Pin QFN
Datasheet
1,226In Stock
Min.: 1
Mult.: 1

SMD/SMT VQFN-48 ARM Cortex M23 256 kB 32 bit 12 bit 48 MHz 34 I/O 32 kB 1.62 V 3.63 V - 40 C + 85 C Tray
Microchip Technology ARM Microcontrollers - MCU CM23, ULP, Touch, 256K Flash, 100 Pin TQFP
Datasheet
38In Stock
1,000Expected 10/15/2026
Min.: 1
Mult.: 1
: 1,000

SMD/SMT TQFP-100 ARM Cortex M23 256 kB 32 bit 12 bit 48 MHz 80 I/O 32 kB 1.62 V 3.63 V - 40 C + 85 C Reel, Cut Tape
Microchip Technology ARM Microcontrollers - MCU CM23, ULP, Touch, Security, 256K Flash, 48 Pin QFN
Datasheet
800In Stock
Min.: 1
Mult.: 1

SMD/SMT VQFN-48 ARM Cortex M23 256 kB 32 bit 12 bit 48 MHz 34 I/O 32 kB 1.62 V 3.63 V - 40 C + 85 C Tray
Analog Devices ARM Microcontrollers - MCU LowPwr Cortex M3w/256kEmbedded Flash/ADC
Datasheet
1In Stock
Min.: 1
Mult.: 1
Max.: 1

ADUCM3029 SMD/SMT LFCSP-64 ARM Cortex M3 256 kB 32 bit 12 bit 26 MHz 44 I/O 64 kB 1.74 V 3.6 V - 40 C + 85 C Tray
Texas Instruments ARM Microcontrollers - MCU Tiva C Series Microc ontroller A 595-TM4 A 595-TM4C1230H6PMI7
Datasheet
1,144In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

TM4C1230H6PM SMD/SMT LQFP-64 ARM Cortex M4F 256 kB 32 bit 12 bit 80 MHz 49 I/O 32 kB 3.15 V 3.63 V - 40 C + 85 C Reel, Cut Tape, MouseReel
Texas Instruments ARM Microcontrollers - MCU Tiva C Series Microc ontroller A 595-TM4 A 595-TM4C1231H6PMI7
Datasheet
978In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

TM4C1231H6PM SMD/SMT LQFP-64 ARM Cortex M4F 256 kB 32 bit 12 bit 80 MHz 43 I/O 32 kB 3.15 V 3.63 V - 40 C + 85 C Reel, Cut Tape, MouseReel
Texas Instruments ARM Microcontrollers - MCU Tiva C Series MCU A 595-TM4C1232H6PMIR A A 595-TM4C1232H6PMIR
Datasheet
14In Stock
Min.: 1
Mult.: 1

TM4C1232H6PM SMD/SMT LQFP-64 ARM Cortex M4F 256 kB 32 bit 12 bit 80 MHz 49 I/O 32 kB 3.3 V 3.3 V - 40 C + 85 C Tray
Texas Instruments ARM Microcontrollers - MCU Tiva C Series MCU A 595-TM4C1233H6PGEIR A 595-TM4C1233H6PGEIR
Datasheet
16In Stock
Min.: 1
Mult.: 1

TM4C1233H6PGE SMD/SMT LQFP-144 ARM Cortex M4F 256 kB 32 bit 12 bit 80 MHz 105 I/O 32 kB 3.3 V 3.3 V - 40 C + 85 C Tray
Texas Instruments ARM Microcontrollers - MCU Tiva C Series MCU A 595-TM4C1237H6PZIR A A 595-TM4C1237H6PZIR
Datasheet
110In Stock
Min.: 1
Mult.: 1

TM4C1237H6PZ SMD/SMT LQFP-100 ARM Cortex M4F 256 kB 32 bit 12 bit 80 MHz 69 I/O 32 kB 3.3 V 3.3 V - 40 C + 85 C Tray
Texas Instruments ARM Microcontrollers - MCU Tiva C Series Microc ontroller A 595-TM4 A 595-TM4C123BH6PGEI7R
Datasheet
5In Stock
Min.: 1
Mult.: 1

TM4C123BH6PGE SMD/SMT LQFP-144 ARM Cortex M4F 256 kB 32 bit 12 bit 80 MHz 105 I/O 32 kB 3.15 V 3.63 V - 40 C + 85 C Tray
Texas Instruments ARM Microcontrollers - MCU Tiva C Series MCU A 595-TM4C123BH6PMIR A A 595-TM4C123BH6PMIR
Datasheet
13In Stock
Min.: 1
Mult.: 1

TM4C123BH6PM SMD/SMT LQFP-64 ARM Cortex M4F 256 kB 32 bit 12 bit 80 MHz 105 I/O 32 kB 1.2 V 1.2 V - 40 C + 85 C Tray
Texas Instruments ARM Microcontrollers - MCU Tiva C Series MCU A 595-TM4C123FH6PMIR A A 595-TM4C123FH6PMIR
Datasheet
95In Stock
Min.: 1
Mult.: 1

TM4C123FH6PM SMD/SMT LQFP-64 ARM Cortex M4F 256 kB 32 bit 12 bit 80 MHz 49 I/O 32 kB 1.2 V 1.2 V - 40 C + 85 C Tray
Texas Instruments ARM Microcontrollers - MCU Tiva C Series MCU A 595-TM4C123GH6PZIR A A 595-TM4C123GH6PZIR
Datasheet
3In Stock
Min.: 1
Mult.: 1

TM4C123GH6PZ SMD/SMT LQFP-100 ARM Cortex M4F 256 kB 32 bit 12 bit 80 MHz 69 I/O 32 kB 1.2 V 1.2 V - 40 C + 85 C Tray