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128 kB Microcontrollers - MCU

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	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	Packaging
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 128-Kbytes of Flash , 32 MHz CPU, USB, AES STM32L082KBU6 STMicroelectronics 1: $5.09 1,028In Stock	Mfr. Part No. STM32L082KBU6 Mouser Part No 511-STM32L082KBU6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M0+ MCU 128-Kbytes of Flash , 32 MHz CPU, USB, AES Learn More about STMicroelectronics stm32l0	Datasheet	1,028In Stock	$5.09 $3.87 $3.38 $3.22 View $2.96 $2.93 Quote	Min.: 1 Mult.: 1	SMD/SMT	UFQFPN-32	ARM Cortex M0+	32 bit	32 MHz	128 kB	20 kB	12 bit	25 I/O	1.8 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power 32-bit Value Line Arm Cortex-M3 MCU 128 Kbytes of Flash 32 MHz C STM32L100RBT6A STMicroelectronics 1: $7.31 831In Stock	Mfr. Part No. STM32L100RBT6A Mouser Part No 511-STM32L100RBT6A	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power 32-bit Value Line Arm Cortex-M3 MCU 128 Kbytes of Flash 32 MHz C Learn More about STMicroelectronics stm32l1	Datasheet	831In Stock	$7.31 $5.62 $4.94 $4.61 View $4.60 $4.33 $4.29 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	32 MHz	128 kB	10 kB	12 bit	51 I/O	1.8 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power 32-bit Value Line Arm Cortex-M3 MCU 128 Kbytes of Flash 32 MHz C STM32L100RBT6ATR STMicroelectronics 1: $6.86 542In Stock	Mfr. Part No. STM32L100RBT6ATR Mouser Part No 511-STM32L100RBT6ATR	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power 32-bit Value Line Arm Cortex-M3 MCU 128 Kbytes of Flash 32 MHz C Learn More about STMicroelectronics stm32l1	Datasheet	542In Stock	Cut Tape $6.86 $5.28 $4.64 $4.44 Reel $4.10 View $4.27 $3.94 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	LQFP-64	ARM Cortex M3	32 bit	32 MHz	128 kB	10 kB	12 bit	51 I/O	1.8 V	3.6 V	+ 85 C	Reel, Cut Tape, MouseReel
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 128 Kbytes of Flash , 32 MHz CPU, USB STM32L151CBT6A STMicroelectronics 1: $6.96 929In Stock	Mfr. Part No. STM32L151CBT6A Mouser Part No 511-STM32L151CBT6A	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 128 Kbytes of Flash , 32 MHz CPU, USB Learn More about STMicroelectronics stm32l1	Datasheet	929In Stock	$6.96 $5.18 $4.76 $4.40 View $4.22 $4.07 $4.02 $3.96 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-48	ARM Cortex M3	32 bit	32 MHz	128 kB	16 kB	12 bit	37 I/O	1.8 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 128 Kbytes of Flash , 32 MHz CPU, USB STM32L151CBU6A STMicroelectronics 1: $7.55 2,232In Stock	Mfr. Part No. STM32L151CBU6A Mouser Part No 511-STM32L151CBU6A	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power Arm Cortex-M3 MCU 128 Kbytes of Flash , 32 MHz CPU, USB Learn More about STMicroelectronics stm32l1	Datasheet	2,232In Stock	$7.55 $5.68 $5.10 $4.74 View $4.51 $4.34 $4.28 $4.25	Min.: 1 Mult.: 1	SMD/SMT	UFQPFN-48	ARM Cortex M3	32 bit	32 MHz	128 kB	16 kB	12 bit	37 I/O	1.8 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 128 Kbytes of Flash , USB STM32L412CBU6 STMicroelectronics 1: $4.32 4,439In Stock 7,800Expected 22/02/2027	Mfr. Part No. STM32L412CBU6 Mouser Part No 511-STM32L412CBU6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 128 Kbytes of Flash , USB Learn More about STMicroelectronics stm stm32l4 mcu fpu	Datasheet	4,439In Stock 7,800Expected 22/02/2027	$4.32 $3.26 $2.84 $2.71 View $2.56 $2.48 $2.46	Min.: 1 Mult.: 1 Max.: 1,000	SMD/SMT		ARM Cortex M4	32 bit	80 MHz	128 kB	40 kB	2 x 12 bit	38 I/O	1.71 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 128 Kbytes of Flash , USB STM32L412KBU6 STMicroelectronics 1: $4.98 1,676In Stock 11,760On Order	Mfr. Part No. STM32L412KBU6 Mouser Part No 511-STM32L412KBU6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 128 Kbytes of Flash , USB Learn More about STMicroelectronics stm stm32l4 mcu fpu	Datasheet	1,676In Stock 11,760On Order On Order Ship Dates Mfr. No: STM32L412KBU6 Stock: 1,676 Can Dispatch Immediately On Order: 5,880 Expected 22/02/2027 5,880 TBD Factory Lead Time: 52 Weeks	$4.98 $3.30 $2.91 $2.74 View $2.51 $2.44	Min.: 1 Mult.: 1 Max.: 2,940	SMD/SMT	UFQFPN-32	ARM Cortex M4	32 bit	80 MHz	128 kB	40 kB	2 x 12 bit	26 I/O	1.71 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 128 Kbytes of Flash , USB STM32L412RBT6 STMicroelectronics 1: $5.46 2,329In Stock	Mfr. Part No. STM32L412RBT6 Mouser Part No 511-STM32L412RBT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 128 Kbytes of Flash , USB Learn More about STMicroelectronics stm stm32l4 mcu fpu	Datasheet	2,329In Stock	$5.46 $3.97 $3.62 $3.26 View $3.18 $2.93	Min.: 1 Mult.: 1 Max.: 750	SMD/SMT		ARM Cortex M4	32 bit	80 MHz	128 kB	40 kB	2 x 12 bit	52 I/O	1.71 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 128 Kbytes of Flash , USB STM32L412RBT6P STMicroelectronics 1: $5.15 995In Stock	Mfr. Part No. STM32L412RBT6P Mouser Part No 511-STM32L412RBT6P	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 128 Kbytes of Flash , USB	Datasheet	995In Stock	$5.15 $3.91 $3.41 $3.25	Min.: 1 Mult.: 1 Max.: 250	SMD/SMT	LQFP-64	ARM Cortex M4	32 bit	80 MHz	128 kB	40 kB	2 x 12 bit	52 I/O	1.71 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 128 Kbytes of Flash STM32L431CBU6 STMicroelectronics 1: $4.91 842In Stock 9,360On Order	Mfr. Part No. STM32L431CBU6 Mouser Part No 511-STM32L431CBU6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 128 Kbytes of Flash Learn More about STMicroelectronics stm stm32l4 mcu fpu	Datasheet	842In Stock 9,360On Order On Order Ship Dates Mfr. No: STM32L431CBU6 Stock: 842 Can Dispatch Immediately On Order: 3,120 Expected 22/02/2027 6,240 TBD Factory Lead Time: 52 Weeks	$4.91 $3.70 $3.27 $3.07 View $2.90 $2.58 $2.56	Min.: 1 Mult.: 1 Max.: 1,560	SMD/SMT	UFQFPN-48	ARM Cortex M4	32 bit	80 MHz	128 kB	64 kB	12 bit	38 I/O	1.71 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 128 Kbytes of Flash STM32L431RBT6 STMicroelectronics 1: $6.33 670In Stock 1,920Expected 22/02/2027	Mfr. Part No. STM32L431RBT6 Mouser Part No 511-STM32L431RBT6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 128 Kbytes of Flash Learn More about STMicroelectronics stm stm32l4 mcu fpu	Datasheet	670In Stock 1,920Expected 22/02/2027	$6.33 $4.47 $4.17 $3.67	Min.: 1 Mult.: 1 Max.: 150	SMD/SMT	LQFP-64	ARM Cortex M4	32 bit	80 MHz	128 kB	64 kB	12 bit	52 I/O	1.71 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU ARM Cortex-M4MCU 80 MHz, 128Kbytes Flash STM32L432KBU6 STMicroelectronics 1: $5.03 4,390In Stock	Mfr. Part No. STM32L432KBU6 Mouser Part No 511-STM32L432KBU6	STMicroelectronics	ARM Microcontrollers - MCU ARM Cortex-M4MCU 80 MHz, 128Kbytes Flash Learn More about STMicroelectronics stm stm32l4 mcu fpu	Datasheet	4,390In Stock	$5.03 $3.82 $3.33 $3.18 $2.93	Min.: 1 Mult.: 1 Max.: 500	SMD/SMT	UFQFPN-32	ARM Cortex M4	32 bit	80 MHz	128 kB	64 kB	12 bit	26 I/O	1.71 V	3.6 V	+ 85 C	Tray
ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 128 Kbytes of Flash , USB FS, LCD STM32L433CBU6 STMicroelectronics 1: $5.21 1,961In Stock 3,120On Order	Mfr. Part No. STM32L433CBU6 Mouser Part No 511-STM32L433CBU6	STMicroelectronics	ARM Microcontrollers - MCU Ultra-low-power FPU Arm Cortex-M4 MCU 80 MHz 128 Kbytes of Flash , USB FS, LCD Learn More about STMicroelectronics stm stm32l4 mcu fpu	Datasheet	1,961In Stock 3,120On Order	$5.21 $3.96 $3.46 $3.30 View $3.04 $3.00	Min.: 1 Mult.: 1 Max.: 1,560	SMD/SMT	UFQFPN-48	ARM Cortex M4	32 bit	80 MHz	128 kB	64 kB	12 bit	38 I/O	1.71 V	3.6 V	+ 85 C	Tray
8-bit Microcontrollers - MCU Performance Line, 24 MHz STM8S 8-bit MCU STM8S207CBT6 STMicroelectronics 1: $5.06 5,962In Stock	Mfr. Part No. STM8S207CBT6 Mouser Part No 511-STM8S207CBT6	STMicroelectronics	8-bit Microcontrollers - MCU Performance Line, 24 MHz STM8S 8-bit MCU Learn More about STMicroelectronics stm8smcus	Datasheet	5,962In Stock	$5.06 $3.77 $3.29 $3.14 View $2.98 $2.88	Min.: 1 Mult.: 1	SMD/SMT	LQFP-48	STM8	8 bit	24 MHz	128 kB	6 kB	10 bit	38 I/O	2.95 V	5.5 V	+ 85 C	Tray
8-bit Microcontrollers - MCU PERF LINE 24 MHZ STM 8-BIT MCU 128 KB STM8S208MBT6B STMicroelectronics 1: $6.73 983In Stock	Mfr. Part No. STM8S208MBT6B Mouser Part No 511-STM8S208MBT6B	STMicroelectronics	8-bit Microcontrollers - MCU PERF LINE 24 MHZ STM 8-BIT MCU 128 KB Learn More about STMicroelectronics stm8smcus	Datasheet	983In Stock	$6.73 $5.16 $4.36 $4.20 View $3.99 $3.91 $3.75 Quote	Min.: 1 Mult.: 1	SMD/SMT	LQFP-80	STM8	8 bit	24 MHz	128 kB	6 kB	10 bit	68 I/O	2.95 V	5.5 V	+ 85 C	Tray
8-bit Microcontrollers - MCU AVRC11N AVR UC 128K FLASH AT90CAN128-16MU Microchip Technology 1: $9.66 600In Stock	Mfr. Part No. AT90CAN128-16MU Mouser Part No 556-A90CAN128-16MU	Microchip Technology	8-bit Microcontrollers - MCU AVRC11N AVR UC 128K FLASH Learn More about Microchip Technology microchip automotive 8bit mcus	Datasheet	600In Stock	$9.66 $8.84 $8.01	Min.: 1 Mult.: 1	SMD/SMT	QFN-64	AVR	8 bit	16 MHz	128 kB	4 kB	10 bit	53 I/O	2.7 V	5.5 V	+ 85 C	Tray
32-bit Microcontrollers - MCU 128KB, 144LQFP 85deg. Green AT32UC3A0128-ALUR Microchip Technology 1: $11.32 894In Stock	Mfr. Part No. AT32UC3A0128-ALUR Mouser Part No 556-AT32UC3A0128ALUR	Microchip Technology	32-bit Microcontrollers - MCU 128KB, 144LQFP 85deg. Green Learn More about Microchip Technology microchip a0 a1 series mcus	Datasheet	894In Stock	Cut Tape $11.32 $10.93 Reel $9.31 MouseReel Available	Min.: 1 Mult.: 1 : 800	SMD/SMT	LQFP-144	AVR	32 bit	66 MHz	128 kB	32 kB	10 bit	109 I/O	1.65 V	1.95 V	+ 85 C	Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU AVRC11 128K Flash Green AT90CAN128-16AUR Microchip Technology 1: $9.84 348In Stock 4,000On Order	Mfr. Part No. AT90CAN128-16AUR Mouser Part No 556-AT90CAN128-16AUR	Microchip Technology	8-bit Microcontrollers - MCU AVRC11 128K Flash Green Learn More about Microchip Technology microchip automotive 8bit mcus	Datasheet	348In Stock 4,000On Order On Order Ship Dates Mfr. No: AT90CAN128-16AUR Stock: 348 Can Dispatch Immediately On Order: 2,000 Expected 09/11/2026 2,000 Expected 08/01/2027 Factory Lead Time: 21 Weeks	Cut Tape $9.84 $9.60 Reel $8.16 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	TQFP-64	AVR	8 bit	16 MHz	128 kB	4 kB	10 bit	53 I/O	2.7 V	5.5 V	+ 85 C	Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU USB 128K FLASH 16 MHz AT90USB1286-AU Microchip Technology 1: $10.38 721In Stock	Mfr. Part No. AT90USB1286-AU Mouser Part No 556-AT90USB1286-AU	Microchip Technology	8-bit Microcontrollers - MCU USB 128K FLASH 16 MHz	Datasheet	721In Stock	$10.38 $9.52 $8.62	Min.: 1 Mult.: 1	SMD/SMT	TQFP-64	AVR	8 bit	16 MHz	128 kB	8 kB	10 bit	48 I/O	2.7 V	5.5 V	+ 85 C	Tray
8-bit Microcontrollers - MCU AVR USB 128K FLASH 16MHz Ind Temp AT90USB1286-MU Microchip Technology 1: $10.33 278In Stock	Mfr. Part No. AT90USB1286-MU Mouser Part No 556-AT90USB1286-MU	Microchip Technology	8-bit Microcontrollers - MCU AVR USB 128K FLASH 16MHz Ind Temp	Datasheet	278In Stock	$10.33 $9.48 $8.57	Min.: 1 Mult.: 1	SMD/SMT	QFN-64	AVR	8 bit	16 MHz	128 kB	8 kB	10 bit	48 I/O	2.7 V	5.5 V	+ 85 C	Tray
8-bit Microcontrollers - MCU USB 128K FLASH 16 MHz AT90USB1287-AUR Microchip Technology 1: $11.45 727In Stock	Mfr. Part No. AT90USB1287-AUR Mouser Part No 556-AT90USB1287-AUR	Microchip Technology	8-bit Microcontrollers - MCU USB 128K FLASH 16 MHz	Datasheet	727In Stock	Cut Tape $11.45 $11.17 Reel $9.51 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	TQFP-64	AVR	8 bit	16 MHz	128 kB	8 kB	10 bit	48 I/O	2.7 V	5.5 V	+ 85 C	Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU AVR USB 128K FLASH AT90USB1287-MU Microchip Technology 1: $11.28 363In Stock 3,120On Order	Mfr. Part No. AT90USB1287-MU Mouser Part No 556-AT90USB1287-MU	Microchip Technology	8-bit Microcontrollers - MCU AVR USB 128K FLASH	Datasheet	363In Stock 3,120On Order On Order Ship Dates Mfr. No: AT90USB1287-MU Stock: 363 Can Dispatch Immediately On Order: 780 Expected 21/12/2026 2,340 Expected 07/01/2027 Factory Lead Time: 20 Weeks	$11.28 $10.33 $9.34	Min.: 1 Mult.: 1	SMD/SMT	QFN-64	AVR	8 bit	16 MHz	128 kB	8 kB	10 bit	48 I/O	2.7 V	5.5 V	+ 85 C	Tray
8-bit Microcontrollers - MCU 128kB Flash 4kB EEPROM 54 I/O Pins ATMEGA1281V-8AU Microchip Technology 1: $11.42 818In Stock 1,170Expected 19/01/2027	Mfr. Part No. ATMEGA1281V-8AU Mouser Part No 556-ATMEGA1281V8AU	Microchip Technology	8-bit Microcontrollers - MCU 128kB Flash 4kB EEPROM 54 I/O Pins	Datasheet	818In Stock 1,170Expected 19/01/2027	$11.42 $10.49 $9.50	Min.: 1 Mult.: 1	SMD/SMT	TQFP-64	AVR	8 bit	8 MHz	128 kB	8 kB	10 bit	54 I/O	1.8 V	5.5 V	+ 85 C	Tray
8-bit Microcontrollers - MCU AVR 128K Flash 16MHz 105 degree C Green ATMEGA128A-AN Microchip Technology 1: $7.55 559In Stock	Mfr. Part No. ATMEGA128A-AN Mouser Part No 556-ATMEGA128A-AN	Microchip Technology	8-bit Microcontrollers - MCU AVR 128K Flash 16MHz 105 degree C Green	Datasheet	559In Stock	$7.55 $7.45 $6.94 $6.32	Min.: 1 Mult.: 1	SMD/SMT	TQFP-64	AVR	8 bit	16 MHz	128 kB	4 kB	10 bit	53 I/O	2.7 V	5.5 V	+ 85 C	Tray
8-bit Microcontrollers - MCU AVR 128K Flash 16MHz 105 degree C Green ATMEGA128A-ANR Microchip Technology 1: $7.68 1,331In Stock 2,000Expected 08/04/2027	Mfr. Part No. ATMEGA128A-ANR Mouser Part No 556-ATMEGA128A-ANR	Microchip Technology	8-bit Microcontrollers - MCU AVR 128K Flash 16MHz 105 degree C Green	Datasheet	1,331In Stock 2,000Expected 08/04/2027	Cut Tape $7.68 $7.50 Reel $6.37 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SMD/SMT	TQFP-64	AVR	8 bit	16 MHz	128 kB	4 kB	10 bit	53 I/O	2.7 V	5.5 V	+ 105 C	Reel, Cut Tape, MouseReel