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QFN-20 8-bit 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.	Core	Program Memory Size	Data RAM Size	Package/Case	Maximum Clock Frequency	ADC Resolution	Number of I/Os	Supply Voltage - Min	Supply Voltage - Max	Mounting Style	Data Bus Width	Minimum Operating Temperature	Maximum Operating Temperature	Series	Packaging
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 $0.617 View $0.577 $0.553 $0.535 $0.511 $0.499	Min.: 1 Mult.: 1		16 kB	1.28 kB	QFN-20			16 I/O	1.8 V	5.5 V	SMD/SMT		- 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 $0.603 $0.53 View Reel $0.474 $0.496 $0.475 $0.474	Min.: 1 Mult.: 1 : 2,500		16 kB	1.28 kB	QFN-20			16 I/O	1.8 V	5.5 V	SMD/SMT		- 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 $0.824 $0.742 $0.653 View $0.61 $0.584 $0.566 $0.541 $0.527	Min.: 1 Mult.: 1		16 kB	1.28 kB	QFN-20			16 I/O	1.8 V	5.5 V	SMD/SMT		- 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		16 kB	1.28 kB	QFN-20			16 I/O	1.8 V	5.5 V	SMD/SMT		- 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: $0.96 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 $0.96 $0.691 $0.622 $0.547 Reel $0.453 View $0.511 $0.489 $0.474 $0.442	Min.: 1 Mult.: 1 : 2,500		16 kB	1.28 kB	QFN-20			16 I/O	1.8 V	5.5 V	SMD/SMT		- 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 $0.489 $0.468 $0.456	Min.: 1 Mult.: 1		16 kB	1.28 kB	QFN-20			16 I/O	1.8 V	5.5 V	SMD/SMT		- 40 C	+ 85 C		Cut Tape
8-bit Microcontrollers - MCU 7.1 KB 256 RAM 18I/O PIC16F685-E/ML Microchip Technology 1: $2.75 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	$2.75	Min.: 1 Mult.: 1	PIC16	7 kB	256 B	QFN-20	20 MHz	10 bit	18 I/O	4.5 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 125 C	PIC16F685	Tube
8-bit Microcontrollers - MCU 7 KB FLASH 256 B SRAM, 18 I/O PIC16F721-I/ML Microchip Technology 1: $1.46 83In Stock	Mfr. Part No. PIC16F721-I/ML Mouser Part No 579-PIC16F721-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	83In Stock	$1.46 $1.31 $1.22	Min.: 1 Mult.: 1	PIC16	7 kB	256 B	QFN-20	16 MHz	8 bit	18 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	PIC16(L)F72x	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	PIC16	7 kB	256 B	QFN-20	16 MHz	8 bit	18 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	PIC16(L)F72x	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	PIC16	7 kB	256 B	QFN-20	20 MHz	10 bit	18 I/O	1.8 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C	PIC16(L)F150x	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 $0.667 $0.64 $0.612 $0.594 $0.58	Min.: 1 Mult.: 1	CIP-51 8051	4 kB	512 B	QFN-20	25 MHz	12 bit	16 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8BB1	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 10/11/2026 14,700 Expected 18/12/2026 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	CIP-51 8051	8 kB	512 B	QFN-20	25 MHz	12 bit	16 I/O	1.8 V	3.6 V	SMD/SMT	8 bit	- 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 08/01/2027	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 08/01/2027	Cut Tape $1.60 $1.17 $1.06 $0.943 View Reel $0.788 $0.886 $0.851 $0.841 $0.788 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	CIP-51 8051	16 kB	2.3 kB	QFN-20	50 MHz	12 bit	16 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8BB2	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 08/01/2027 9,000 Expected 12/01/2027 Factory Lead Time: 31 Weeks	Cut Tape $2.64 $2.21 $1.94 $1.84 View Reel $1.51 $1.80 $1.61 $1.51 $1.51 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	CIP-51 8051	16 kB	2.25 kB	QFN-20	50 MHz	12 bit	13 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8UB	Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8kB/768B RAM, 10b ADC, 10b DAC, QFN20 OTP available (T630-GM) C8051F330-GMR Silicon Labs 1: $10.54 4,063On Order NRND	Mfr. Part No. C8051F330-GMR Mouser Part No 634-C8051F330-GMR NRND	Silicon Labs	8-bit Microcontrollers - MCU 8kB/768B RAM, 10b ADC, 10b DAC, QFN20 OTP available (T630-GM)	Datasheet	4,063On Order On Order Ship Dates Mfr. No: C8051F330-GMR Stock: 0 On Order: 1,063 Pending 3,000 Expected 11/06/2027 Factory Lead Time: 21 Weeks	Cut Tape $10.54 $8.75 $7.65 $7.02 View Reel $5.62 $6.72 $6.62 $5.62 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	8051	8 kB	768 B	QFN-20	25 MHz	10 bit	17 I/O	2.7 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F330	Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU EFM8BB10F8G-A-QFN20 Silicon Labs 1: $1.20 2,519Expected 17/11/2026	Mfr. Part No. EFM8BB10F8G-A-QFN20 Mouser Part No 634-8BB10F8GAQF20	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	2,519Expected 17/11/2026	$1.20 $0.869 $0.787 $0.695 View $0.652 $0.625 $0.598 $0.581 $0.566	Min.: 1 Mult.: 1	CIP-51 8051	8 kB	512 B	QFN-20	25 MHz	12 bit	16 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	EFM8BB1	Tube
8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU EFM8BB10F8I-A-QFN20 Silicon Labs 1: $1.35 7,560Expected 04/12/2026	Mfr. Part No. EFM8BB10F8I-A-QFN20 Mouser Part No 634-FM8BB10F8IAQFN20	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU Learn More about Silicon Labs siliconlabs efm8 busy bee	Datasheet	7,560Expected 04/12/2026	$1.35 $0.978 $0.885 $0.782 View $0.733 $0.704 $0.672 $0.653 $0.638	Min.: 1 Mult.: 1	CIP-51 8051	8 kB	512 B	QFN-20	25 MHz	12 bit	16 I/O	2.2 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 125 C	EFM8BB1	Tube
8-bit Microcontrollers - MCU 8-bit MCU Value Line 16 MHz 8kb FL 128EE STM8S003F3U6TR STMicroelectronics 1: $0.87 9,000On Order	Mfr. Part No. STM8S003F3U6TR Mouser Part No 511-STM8S003F3U6TR	STMicroelectronics	8-bit Microcontrollers - MCU 8-bit MCU Value Line 16 MHz 8kb FL 128EE Learn More about STMicroelectronics stm8s mcus	Datasheet	9,000On Order	Cut Tape $0.87 $0.622 $0.521 $0.49 $0.437 Reel $0.40 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	STM8	8 kB	1 kB	QFN-20	16 MHz	10 bit	16 I/O	2.95 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	STM8S003F3	Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 7KB Flash, 128EE, 512B RAM, 10b ADC, PWM, CCP, HLT, WDT, PPS, EUSART, SPI/I2C PIC16F18044-I/ML Microchip Technology 1: $0.49 1,701On Order	Mfr. Part No. PIC16F18044-I/ML Mouser Part No 494-PIC16F18044-I/ML	Microchip Technology	8-bit Microcontrollers - MCU 7KB Flash, 128EE, 512B RAM, 10b ADC, PWM, CCP, HLT, WDT, PPS, EUSART, SPI/I2C Learn More about Microchip Technology microchip pic16f18015 25 44 45 mcus	Datasheet	1,701On Order	$0.49 $0.488	Min.: 1 Mult.: 1	PIC16	7 kB	512 B	QFN-20	32 MHz	10 bit	18 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C		Tube
8-bit Microcontrollers - MCU 2kB Flash 0.128kB EEPROM 12 I/O Pins ATTINY24-20MU Microchip Technology 1: $2.16 668Expected 10/11/2026	Mfr. Part No. ATTINY24-20MU Mouser Part No 556-ATTINY24-20MU	Microchip Technology	8-bit Microcontrollers - MCU 2kB Flash 0.128kB EEPROM 12 I/O Pins Learn More about Microchip Technology microchip automotive 8bit mcus	Datasheet	668Expected 10/11/2026	$2.16 $2.00 $1.96 $1.80 $1.79	Min.: 1 Mult.: 1	AVR	2 kB	128 B	QFN-20	20 MHz	10 bit	12 I/O	2.7 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	ATtiny24	Tray
8-bit Microcontrollers - MCU Access line, 16 MHz STM8S 8-bit 8 Kbyte STM8S103F3U6TR STMicroelectronics 1: $1.80 2,995Expected 05/03/2027	Mfr. Part No. STM8S103F3U6TR Mouser Part No 511-STM8S103F3U6TR	STMicroelectronics	8-bit Microcontrollers - MCU Access line, 16 MHz STM8S 8-bit 8 Kbyte Learn More about STMicroelectronics stm8s mcus	Datasheet	2,995Expected 05/03/2027	Cut Tape $1.80 $1.10 $0.921 $0.699 View Reel $0.453 $0.605 $0.53 $0.477 $0.453 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	STM8	8 kB	1 kB	QFN-20	16 MHz	10 bit	16 I/O	2.95 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	STM8S103F3	Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU AVR 2KB FLSH 128B EE USI ADC 20MHz 125C ATTINY24A-MF Microchip Technology 1: $1.25 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. ATTINY24A-MF Mouser Part No 556-ATTINY24A-MF	Microchip Technology	8-bit Microcontrollers - MCU AVR 2KB FLSH 128B EE USI ADC 20MHz 125C Learn More about Microchip Technology microchip automotive 8bit mcus	Datasheet	Non-Stocked Lead-Time 10 Weeks	$1.25 $1.13 $1.04	Min.: 1 Mult.: 1	AVR	2 kB	128 B	QFN-20	20 MHz	10 bit	12 I/O	1.8 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 125 C	ATtiny24	Tray
8-bit Microcontrollers - MCU 14KB Fl 1kB R 48MHz Int. Oc 18 I0 PIC16F1459T-I/ML Microchip Technology 3,300: $1.84 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. PIC16F1459T-I/ML Mouser Part No 579-PIC16F1459T-I/ML	Microchip Technology	8-bit Microcontrollers - MCU 14KB Fl 1kB R 48MHz Int. Oc 18 I0 Learn More about Microchip Technology microchip pic16f1459 mcus	Datasheet	Non-Stocked Lead-Time 7 Weeks	Reel $1.84	Min.: 3,300 Mult.: 3,300 : 3,300	PIC16		1 kB	QFN-20	48 MHz			2.5 V	5.5 V	SMD/SMT	8 bit			PIC16(L)F145x	Reel
8-bit Microcontrollers - MCU 3.5KB Flash 128B RAM 18I/O 10bit ADC PIC16F1507-E/ML Microchip Technology 546: $1.23 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. PIC16F1507-E/ML Mouser Part No 579-PIC16F1507-E/ML	Microchip Technology	8-bit Microcontrollers - MCU 3.5KB Flash 128B RAM 18I/O 10bit ADC Learn More about Microchip Technology microchip core peripherals	Datasheet	Non-Stocked Lead-Time 7 Weeks	$1.23	Min.: 546 Mult.: 91	PIC16	2 kB	128 B	QFN-20	20 MHz	10 bit	18 I/O	2.5 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 125 C	PIC16(L)F150x	Tube
8-bit Microcontrollers - MCU 3.5KB Flash 128B RAM 18I/O 10bit ADC PIC16F1507T-I/ML Microchip Technology 3,300: $1.18 Non-Stocked Lead-Time 8 Weeks	Mfr. Part No. PIC16F1507T-I/ML Mouser Part No 579-PIC16F1507T-I/ML	Microchip Technology	8-bit Microcontrollers - MCU 3.5KB Flash 128B RAM 18I/O 10bit ADC Learn More about Microchip Technology microchip core peripherals	Datasheet	Non-Stocked Lead-Time 8 Weeks	Reel $1.18	Min.: 3,300 Mult.: 3,300 : 3,300	PIC16	3.5 kB	128 B	QFN-20	20 MHz	10 bit	18 I/O	2.5 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	PIC16(L)F150x	Reel