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QFN-20 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	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	Qualification	Packaging
8-bit Microcontrollers - MCU 8-Bit UL PWR MCU 8Kbytes -40 to 85 STM8L101F3U6ATR STMicroelectronics 1: $1.90 69In Stock	Mfr. Part No. STM8L101F3U6ATR Mouser Part No 511-STM8L101F3U6ATR	STMicroelectronics	8-bit Microcontrollers - MCU 8-Bit UL PWR MCU 8Kbytes -40 to 85 Learn More about STMicroelectronics stm8l	Datasheet	69In Stock	Cut Tape $1.90 $1.40 $1.17 $1.12 Reel $0.907 View $1.08 $0.937 $0.915 $0.898 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SMD/SMT	QFN-20	STM8	8 kB	8 bit	No ADC	16 MHz	18 I/O	1.5 kB	1.65 V	3.6 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
32-bit Microcontrollers - MCU 8KB RAM 79 Power microMIPS PIC32MM0064GPL020-I/ML Microchip Technology 1: $1.85 597In Stock	Mfr. Part No. PIC32MM0064GPL020-I/ML Mouser Part No 579-MM0064GPL020IML	Microchip Technology	32-bit Microcontrollers - MCU 8KB RAM 79 Power microMIPS Learn More about Microchip Technology microchip pic32mm microcontrollers	Datasheet	597In Stock	$1.85 $1.69 $1.52	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	MIPS32 microAptiv UC	64 kB	32 bit	10 bit/12 bit	25 MHz	16 I/O	8 kB	2 V	3.6 V	- 40 C	+ 85 C	AEC-Q100	Tube
8-bit Microcontrollers - MCU 7KB FLASH 256B RAM 18 I/O 10-BIT ADC PIC16F1508-I/ML Microchip Technology 1: $1.51 152In Stock	Mfr. Part No. PIC16F1508-I/ML Mouser Part No 579-PIC16F1508-I/ML	Microchip Technology	8-bit Microcontrollers - MCU 7KB FLASH 256B RAM 18 I/O 10-BIT ADC Learn More about Microchip Technology microchip pic16f15xx microcontrollers	Datasheet	152In Stock	$1.51 $1.38 $1.26	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	PIC16	4 kB	8 bit	10 bit	20 MHz	18 I/O	256 B	2.3 V	5.5 V	- 40 C	+ 85 C		Tube
8-bit Microcontrollers - MCU 4K Wrd Flsh 512B RAM Hi-Spd Comp 10B ADC PIC16F1708-I/ML Microchip Technology 1: $1.54 461In Stock	Mfr. Part No. PIC16F1708-I/ML Mouser Part No 579-PIC16F1708-I/ML	Microchip Technology	8-bit Microcontrollers - MCU 4K Wrd Flsh 512B RAM Hi-Spd Comp 10B ADC Learn More about Microchip Technology microchip intelligent analog PIC	Datasheet	461In Stock	$1.54 $1.40 $1.29	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	PIC16	7 kB	8 bit	10 bit	32 MHz	18 I/O	512 B	2.3 V	5.5 V	- 40 C	+ 85 C	AEC-Q100	Tube
8-bit Microcontrollers - MCU 7.1 KB 256 RAM 18I/O PIC16F690-I/ML Microchip Technology 1: $2.71 418In Stock	Mfr. Part No. PIC16F690-I/ML Mouser Part No 579-PIC16F690-I/ML	Microchip Technology	8-bit Microcontrollers - MCU 7.1 KB 256 RAM 18I/O	Datasheet	418In Stock	$2.71	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	PIC16	7 kB	8 bit	10 bit	20 MHz	18 I/O	256 B	4.5 V	5.5 V	- 40 C	+ 85 C		Tube
8-bit Microcontrollers - MCU 8KBFlash 256bytesRAM 256bytesEEPROM PIC18F13K22-E/ML Microchip Technology 1: $2.33 382In Stock	Mfr. Part No. PIC18F13K22-E/ML Mouser Part No 579-PIC18F13K22-E/ML	Microchip Technology	8-bit Microcontrollers - MCU 8KBFlash 256bytesRAM 256bytesEEPROM Learn More about Microchip Technology microchip automotive 8bit mcus	Datasheet	382In Stock	$2.33 $2.28	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	PIC18	8 kB	8 bit	10 bit	64 MHz	17 I/O	256 B	2.3 V	5.5 V	- 40 C	+ 125 C		Tube
8-bit Microcontrollers - MCU 8KBFlash 256bytesRAM 256bytesEEPROM PIC18F13K22-I/ML Microchip Technology 1: $2.12 503In Stock	Mfr. Part No. PIC18F13K22-I/ML Mouser Part No 579-PIC18F13K22-I/ML	Microchip Technology	8-bit Microcontrollers - MCU 8KBFlash 256bytesRAM 256bytesEEPROM Learn More about Microchip Technology microchipxlp	Datasheet	503In Stock	$2.12 $1.95 $1.76	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	PIC18	8 kB	8 bit	10 bit	64 MHz	17 I/O	256 B	2.3 V	5.5 V	- 40 C	+ 85 C		Tube
16-bit Microcontrollers - MCU 16KB FLASH 1KB RAM 3V 10-BIT ADC PIC24F16KL401-I/MQ Microchip Technology 1: $2.73 409In Stock	Mfr. Part No. PIC24F16KL401-I/MQ Mouser Part No 579-PIC24F16KL401IMQ	Microchip Technology	16-bit Microcontrollers - MCU 16KB FLASH 1KB RAM 3V 10-BIT ADC Learn More about Microchip Technology microchip pic24f kl	Datasheet	409In Stock	$2.73 $2.52 $2.28	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	PIC24F	16 kB	16 bit	10 bit	32 MHz	18 I/O	1 kB	1.8 V	3.6 V	- 40 C	+ 85 C	AEC-Q100	Tube
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB21F16G-C-QFN20 Silicon Labs 1: $1.71 50In Stock 2,520Expected 2027/01/08	Mfr. Part No. EFM8BB21F16G-C-QFN20 Mouser Part No 634-8BB21F16GCQFN20	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	50In Stock 2,520Expected 2027/01/08	$1.71 $1.45 $1.27 $1.06	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	CIP-51 8051	16 kB	8 bit	12 bit	50 MHz	16 I/O	2.3 kB	2.2 V	3.6 V	- 40 C	+ 85 C		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU EFM8UB10F16G-C-QFN20 Silicon Labs 1: $2.58 164In Stock	Mfr. Part No. EFM8UB10F16G-C-QFN20 Mouser Part No 634-8UB10F16GCQFN20	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU	Datasheet	164In Stock	$2.58 $2.17 $1.90 $1.78 $1.59	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	CIP-51 8051	16 kB	8 bit	12 bit	50 MHz	13 I/O	2.25 kB	2.2 V	3.6 V	- 40 C	+ 85 C		Tube
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB21F16A-C-QFN20R Silicon Labs 1: $3.33 298In Stock	Mfr. Part No. EFM8BB21F16A-C-QFN20R Mouser Part No 634-BB21F16ACQFN20R	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	298In Stock	Cut Tape $3.33 $2.48 $2.27 $2.04 Reel $1.73 View $1.92 $1.88 $1.78 $1.70	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	QFN-20	CIP-51 8051	16 kB	8 bit	12 bit	50 MHz	16 I/O	2.25 kB	2.2 V	3.6 V	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB21F16I-C-QFN20R Silicon Labs 1: $1.85 331In Stock	Mfr. Part No. EFM8BB21F16I-C-QFN20R Mouser Part No 634-BB21F16ICQFN20R	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	331In Stock	Cut Tape $1.85 $1.57 $1.38 $1.30 View Reel $0.904 $1.04 $0.996 $0.904 $0.904 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	QFN-20	CIP-51 8051	16 kB	8 bit	12 bit	50 MHz	16 I/O	2.25 kB	2.2 V	3.6 V	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB51F16G-C-QFN20 Silicon Labs 1: $1.08 151In Stock	Mfr. Part No. EFM8BB51F16G-C-QFN20 Mouser Part No 634-EFM851F16GCQFN20	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	151In Stock	$1.08 $0.78 $0.702 $0.618 View $0.577 $0.554 $0.535 $0.511 $0.499	Min.: 1 Mult.: 1	SMD/SMT	QFN-20		16 kB				16 I/O	1.28 kB	1.8 V	5.5 V	- 40 C	+ 85 C		Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB51F16G-C-QFN20R Silicon Labs 1: $0.93 1,016In Stock 7,500On Order	Mfr. Part No. EFM8BB51F16G-C-QFN20R Mouser Part No 634-EFM851F16GQFN20R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	1,016In Stock 7,500On Order	Cut Tape $0.93 $0.669 $0.604 $0.53 View Reel $0.475 $0.497 $0.476 $0.475	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	QFN-20		16 kB				16 I/O	1.28 kB	1.8 V	5.5 V	- 40 C	+ 85 C		Reel, Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB51F16I-C-QFN20 Silicon Labs 1: $1.14 194In Stock	Mfr. Part No. EFM8BB51F16I-C-QFN20 Mouser Part No 634-EFM851F16ICQFN20	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	194In Stock	$1.14 $0.825 $0.742 $0.654 View $0.611 $0.584 $0.566 $0.541 $0.527	Min.: 1 Mult.: 1	SMD/SMT	QFN-20		16 kB				16 I/O	1.28 kB	1.8 V	5.5 V	- 40 C	+ 85 C		Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB52F16G-C-QFN20 Silicon Labs 1: $0.92 234In Stock	Mfr. Part No. EFM8BB52F16G-C-QFN20 Mouser Part No 634-EFM852F16GCQFN20	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	234In Stock	$0.92 $0.733 $0.522 $0.499 View $0.479 $0.459 $0.447	Min.: 1 Mult.: 1	SMD/SMT	QFN-20		16 kB				16 I/O	1.28 kB	1.8 V	5.5 V	- 40 C	+ 85 C		Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB52F16G-C-QFN20R Silicon Labs 1: $0.961 874In Stock	Mfr. Part No. EFM8BB52F16G-C-QFN20R Mouser Part No 634-EFM852F16GQFN20R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	874In Stock	Cut Tape $0.961 $0.691 $0.622 $0.547 Reel $0.454 View $0.511 $0.49 $0.475 $0.442	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	QFN-20		16 kB				16 I/O	1.28 kB	1.8 V	5.5 V	- 40 C	+ 85 C		Reel, Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB51F8G-C-QFN20 Silicon Labs 1: $0.99 294In Stock	Mfr. Part No. EFM8BB51F8G-C-QFN20 Mouser Part No 634-EFM8B51F8GCQFN20	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	294In Stock	$0.99 $0.713 $0.642 $0.564 View $0.528 $0.505 $0.49 $0.468 $0.456	Min.: 1 Mult.: 1	SMD/SMT	QFN-20		16 kB				16 I/O	1.28 kB	1.8 V	5.5 V	- 40 C	+ 85 C		Cut Tape
8-bit Microcontrollers - MCU 7.1 KB 256 RAM 18I/O PIC16F685-E/ML Microchip Technology 1: $2.78 37In Stock	Mfr. Part No. PIC16F685-E/ML Mouser Part No 579-PIC16F685-E/ML	Microchip Technology	8-bit Microcontrollers - MCU 7.1 KB 256 RAM 18I/O	Datasheet	37In Stock	$2.78	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	PIC16	7 kB	8 bit	10 bit	20 MHz	18 I/O	256 B	4.5 V	5.5 V	- 40 C	+ 125 C		Tube
8-bit Microcontrollers - MCU 7 KB FLASH 256 B SRAM, 18 I/O PIC16F721T-I/ML Microchip Technology 1: $1.52 60In Stock	Mfr. Part No. PIC16F721T-I/ML Mouser Part No 579-PIC16F721T-I/ML	Microchip Technology	8-bit Microcontrollers - MCU 7 KB FLASH 256 B SRAM, 18 I/O Learn More about Microchip Technology microchip automotive 8bit mcus	Datasheet	60In Stock	Cut Tape $1.52 $1.47 Reel $1.26	Min.: 1 Mult.: 1 : 3,300	SMD/SMT	QFN-20	PIC16	7 kB	8 bit	8 bit	16 MHz	18 I/O	256 B	1.8 V	5.5 V	- 40 C	+ 85 C		Reel, Cut Tape
8-bit Microcontrollers - MCU 7KB FLASH 256B RAM PIC16LF1508-E/ML Microchip Technology 1: $1.63 12In Stock	Mfr. Part No. PIC16LF1508-E/ML Mouser Part No 579-PIC16LF1508-E/ML	Microchip Technology	8-bit Microcontrollers - MCU 7KB FLASH 256B RAM	Datasheet	12In Stock	$1.63 $1.51 $1.37	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	PIC16	7 kB	8 bit	10 bit	20 MHz	18 I/O	256 B	1.8 V	3.6 V	- 40 C	+ 125 C		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 4 kB Flash 0.5 kB RAM 8-bit Busy Bee MCU EFM8BB10F4G-A-QFN20 Silicon Labs 1: $1.22 218In Stock	Mfr. Part No. EFM8BB10F4G-A-QFN20 Mouser Part No 634-8BB10F4GAQF20	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 4 kB Flash 0.5 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	218In Stock	$1.22 $0.89 $0.805 $0.712 View $0.668 $0.64 $0.612 $0.594 $0.58	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	CIP-51 8051	4 kB	8 bit	12 bit	25 MHz	16 I/O	512 B	2.2 V	3.6 V	- 40 C	+ 85 C		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU EFM8SB10F8G-A-QFN20 Silicon Labs 1: $1.64 17,031On Order	Mfr. Part No. EFM8SB10F8G-A-QFN20 Mouser Part No 634-8SB10F8GAQF20	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU Learn More about Silicon Labs silabs efm8 sleepy bee	Datasheet	17,031On Order On Order Ship Dates Mfr. No: EFM8SB10F8G-A-QFN20 Stock: 0 On Order: 2,331 Expected 2026/11/10 14,700 Expected 2026/12/18 Factory Lead Time: 12 Weeks	$1.64 $1.22 $1.11 $0.979 View $0.919 $0.883 $0.873 $0.816 $0.798	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	CIP-51 8051	8 kB	8 bit	12 bit	25 MHz	16 I/O	512 B	1.8 V	3.6 V	- 40 C	+ 85 C		Tube
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU EFM8BB21F16G-C-QFN20R Silicon Labs 1: $1.60 93,467Expected 2027/01/08	Mfr. Part No. EFM8BB21F16G-C-QFN20R Mouser Part No 634-8BB21F16GCQFN20R	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	93,467Expected 2027/01/08	Cut Tape $1.60 $1.17 $1.06 $0.943 View Reel $0.789 $0.886 $0.851 $0.841 $0.789 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	QFN-20	CIP-51 8051	16 kB	8 bit	12 bit	50 MHz	16 I/O	2.3 kB	2.2 V	3.6 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU EFM8UB10F16G-C-QFN20R Silicon Labs 1: $2.64 49,037On Order	Mfr. Part No. EFM8UB10F16G-C-QFN20R Mouser Part No 634-8UB10F16GCQFN20R	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU	Datasheet	49,037On Order On Order Ship Dates Mfr. No: EFM8UB10F16G-C-QFN20R Stock: 0 On Order: 40,037 Expected 2027/01/08 9,000 Expected 2027/01/12 Factory Lead Time: 31 Weeks	Cut Tape $2.64 $2.21 $1.94 $1.84 View Reel $1.51 $1.80 $1.60 $1.51 $1.51 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	QFN-20	CIP-51 8051	16 kB	8 bit	12 bit	50 MHz	13 I/O	2.25 kB	2.2 V	3.6 V	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel