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128 kB Microcontrollers - MCU

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) 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: £3.82 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	£3.82 £2.91 £2.54 £2.42 View £2.23 £2.20 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: £5.49 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	£5.49 £4.22 £3.71 £3.46 View £3.25 £3.22 £3.20 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: £5.15 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 £5.15 £3.96 £3.48 £3.33 Reel £3.08 View £3.20 £2.96 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: £5.23 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	£5.23 £3.88 £3.57 £3.30 View £3.17 £3.06 £3.02 £2.98 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: £5.67 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	£5.67 £4.26 £3.83 £3.56 View £3.39 £3.26 £3.21 £3.20	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: £3.25 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	£3.25 £2.44 £2.13 £2.03 View £1.92 £1.86 £1.85	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: £3.74 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	£3.74 £2.48 £2.18 £2.06 View £1.89 £1.83	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: £4.10 3,329In 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	3,329In Stock	£4.10 £2.98 £2.72 £2.44 View £2.38 £2.20	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: £3.87 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	£3.87 £2.93 £2.56 £2.44	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: £3.68 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	£3.68 £2.78 £2.45 £2.30 View £2.17 £1.94 £1.92	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: £4.75 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	£4.75 £3.35 £3.13 £2.76	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: £3.78 4,816In 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	4,816In Stock	£3.78 £2.87 £2.50 £2.38 £2.20	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: £3.91 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	£3.91 £2.98 £2.60 £2.48 View £2.28 £2.25	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: £3.80 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	£3.80 £2.83 £2.47 £2.36 View £2.23 £2.17	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: £5.05 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	£5.05 £3.88 £3.27 £3.15 View £2.99 £2.93 £2.82 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: £7.25 300In 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	300In Stock	£7.25 £6.63 £6.01	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: £8.50 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 £8.50 £8.21 Reel £6.99 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: £7.39 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 £7.39 £7.21 Reel £6.13 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: £7.80 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	£7.80 £7.15 £6.47	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: £7.75 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	£7.75 £7.11 £6.43	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: £8.60 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 £8.60 £8.39 Reel £7.14 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: £8.47 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	£8.47 £7.75 £7.01	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: £8.57 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	£8.57 £7.87 £7.13	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: £5.67 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	£5.67 £5.60 £5.21 £4.75	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: £5.76 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 £5.76 £5.63 Reel £4.78 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