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8051 microcontroller Microcontrollers - MCU

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (SGD) 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	Qualification	Packaging
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB52F16G-C-TSSOP20 Silicon Labs 1: $1.55 179Expected 27/10/2026	Mfr. Part No. EFM8BB52F16G-C-TSSOP20 Mouser Part No 634-EFM852F16GCTOP20	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	179Expected 27/10/2026	$1.55 $1.12 $1.01 $0.888 View $0.83 $0.794 $0.77 $0.736 $0.717	Min.: 1 Mult.: 1	SMD/SMT	TSSOP-20				16 kB	1.28 kB		16 I/O	1.8 V	5.5 V	+ 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 EFM8BB52F16I-C-TSSOP20 Silicon Labs 1: $1.59 198Expected 1/1/2027	Mfr. Part No. EFM8BB52F16I-C-TSSOP20 Mouser Part No 634-EFM852F16ITSOP20	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	198Expected 1/1/2027	$1.59 $1.15 $1.04 $0.911 View $0.853 $0.816 $0.79 $0.755 $0.736	Min.: 1 Mult.: 1	SMD/SMT	TSSOP-20				16 kB	1.28 kB		16 I/O	1.8 V	5.5 V	+ 85 C		Cut Tape
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU EFM8UB10F16G-C-QFN28 Silicon Labs 1: $3.58 526Expected 8/1/2027	Mfr. Part No. EFM8UB10F16G-C-QFN28 Mouser Part No 634-8UB10F16GCQFN28	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU	Datasheet	526Expected 8/1/2027	$3.58 $2.65 $2.42 $2.16 View $2.04 $1.97 $1.89	Min.: 1 Mult.: 1	SMD/SMT	QFN-28	CIP-51 8051	8 bit	50 MHz	16 kB	2.25 kB	12 bit	22 I/O	2.2 V	3.6 V	+ 85 C		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB LFO 8-bit MCU C8051F336-GM Silicon Labs 1: $15.76 2,840In Stock NRND	Mfr. Part No. C8051F336-GM Mouser Part No 634-C8051F336-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 16 kB LFO 8-bit MCU	Datasheet	2,840In Stock	$15.76 $12.31 $11.44 $10.50 View $9.97 $9.76 $9.55 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	8051	8 bit	25 MHz	16 kB	768 B	10 bit	17 I/O	2.7 V	3.6 V	+ 85 C		Tube
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB 8-bit MCU C8051F327-GMR Silicon Labs 1: $6.79 3,007In Stock	Mfr. Part No. C8051F327-GMR Mouser Part No 634-C8051F327-GMR	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 16 kB 8-bit MCU	Datasheet	3,007In Stock	Cut Tape $6.79 $5.17 $4.76 $4.31 View Reel $3.88 $4.09 $3.97 $3.92 $3.88	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	QFN-28	8051	8 bit	25 MHz	16 kB	1.54 kB		15 I/O	2.7 V	5.25 V	+ 85 C		Reel, Cut Tape
8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU AT89LP52-20MU Microchip Technology 720: $1.78 Non-Stocked Lead-Time 13 Weeks	Mfr. Part No. AT89LP52-20MU Mouser Part No 556-AT89LP52-20MU	Microchip Technology	8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU Learn More about Microchip Technology atmelat89lp52	Datasheet	Non-Stocked Lead-Time 13 Weeks	$1.78	Min.: 720 Mult.: 360	SMD/SMT	VQFN-44	8051	8 bit	20 MHz	8 kB	256 B	No ADC	36 I/O	2.4 V	5.5 V	+ 85 C		Tray
8-bit Microcontrollers - MCU Single Cycle 8051 4K ISP FL AT89LP51-20MU Microchip Technology 720: $1.78 Non-Stocked Lead-Time 13 Weeks	Mfr. Part No. AT89LP51-20MU Mouser Part No 556-AT89LP51-20MU	Microchip Technology	8-bit Microcontrollers - MCU Single Cycle 8051 4K ISP FL Learn More about Microchip Technology atmelat89lp52	Datasheet	Non-Stocked Lead-Time 13 Weeks	$1.78	Min.: 720 Mult.: 360	SMD/SMT	VQFN-44	8051	8 bit	20 MHz	4 kB	256 B	No ADC	36 I/O	2.4 V	5.5 V	+ 85 C		Tray
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB LFO 8-bit MCU C8051F338-GMR Silicon Labs 1: $15.84 2,731In Stock	Mfr. Part No. C8051F338-GMR Mouser Part No 634-C8051F338-GMR	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 16 kB LFO 8-bit MCU	Datasheet	2,731In Stock	Cut Tape $15.84 $12.40 $11.55 $10.61 View Reel $9.15 $10.50 $9.89 $9.66 $9.15 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	QFN-24	8051	8 bit	25 MHz	16 kB	768 B	10 bit	21 I/O	2.7 V	3.6 V	+ 85 C		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU Single-Cycle 8051 64K ISP Flash AT89LP6440-20MU Microchip Technology 360: $5.78 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. AT89LP6440-20MU Mouser Part No 556-AT89LP6440-20MU	Microchip Technology	8-bit Microcontrollers - MCU Single-Cycle 8051 64K ISP Flash	Datasheet	Non-Stocked Lead-Time 9 Weeks	$5.78	Min.: 360 Mult.: 360	SMD/SMT	VQFN-44	8051	8 bit	20 MHz	64 kB	4.25 kB	10 bit	38 I/O	2.4 V	3.6 V	+ 85 C		Tray
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB LFO 8-bit MCU C8051F336-GMR Silicon Labs 1: $15.75 1,408In Stock	Mfr. Part No. C8051F336-GMR Mouser Part No 634-C8051F336-GMR	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 16 kB LFO 8-bit MCU	Datasheet	1,408In Stock	Cut Tape $15.75 $12.29 $11.42 $10.49 View Reel $9.07 $9.96 $9.75 $9.53 $9.07 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	QFN-20	8051	8 bit	25 MHz	16 kB	768 B	10 bit	17 I/O	2.7 V	3.6 V	+ 85 C		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB 8-bit MCU C8051F413-GM Silicon Labs 1: $17.92 6,193In Stock NRND	Mfr. Part No. C8051F413-GM Mouser Part No 634-C8051F413-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 16 kB 8-bit MCU	Datasheet	6,193In Stock	$17.92 $14.04 $13.07 $12.01 View $11.89 $11.19 $10.21 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-28	8051	8 bit	50 MHz	16 kB	2.31 kB	12 bit	20 I/O	2 V	5.25 V	+ 85 C		Tube
8-bit Microcontrollers - MCU 8051 8bit 67MHz 32KB CY8C3865AXI-019T Infineon Technologies 1,500: $20.30 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. CY8C3865AXI-019T Mouser Part No 727-CY8C3865AXI-019T	Infineon Technologies	8-bit Microcontrollers - MCU 8051 8bit 67MHz 32KB Learn More about Infineon Technologies cypress psoc	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel $20.30 Quote Quote	Min.: 1,500 Mult.: 1,500 : 1,500	SMD/SMT	TQFP-100	8051	8 bit	67 MHz	32 kB	4 kB	20 bit		1.71 V	1.89 V	+ 85 C		Reel
8-bit Microcontrollers - MCU 8051 8bit 67MHz 64KB CY8C3866LTI-030T Infineon Technologies 2,000: $20.54 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. CY8C3866LTI-030T Mouser Part No 727-CY8C3866LTI-030T	Infineon Technologies	8-bit Microcontrollers - MCU 8051 8bit 67MHz 64KB Learn More about Infineon Technologies cypress psoc	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel $20.54	Min.: 2,000 Mult.: 2,000 : 2,000	SMD/SMT	QFN-48	8051	8 bit	67 MHz	64 kB	8 kB	20 bit		1.71 V	1.89 V	+ 85 C		Reel
8-bit Microcontrollers - MCU 8051 100 MHz 128 kB MAC 8-bit MCU C8051F130-GQR Silicon Labs 1: $55.16 341In Stock End of Life	Mfr. Part No. C8051F130-GQR Mouser Part No 634-C8051F130-GQR End of Life	Silicon Labs	8-bit Microcontrollers - MCU 8051 100 MHz 128 kB MAC 8-bit MCU	Datasheet	341In Stock	Cut Tape $55.16 $44.66 $42.04 $40.30 Reel $37.77 MouseReel Available	Min.: 1 Mult.: 1 : 250	SMD/SMT	TQFP-100	8051	8 bit	100 MHz	128 kB	8.25 kB		64 I/O	3 V	3.6 V	+ 85 C		Reel, Cut Tape, MouseReel
8-bit Microcontrollers - MCU 8051 25 MHz 4 kB 8-bit MCU C8051F850-C-GM Silicon Labs 1: $4.01 1,473In Stock NRND	Mfr. Part No. C8051F850-C-GM Mouser Part No 634-C8051F850-C-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 4 kB 8-bit MCU Learn More about Silicon Labs silabs c8051f85 c8051f86 mcus	Datasheet	1,473In Stock	$4.01 $2.99 $2.73 $2.45 View $2.31 $2.26 $2.15 $2.08 $2.04	Min.: 1 Mult.: 1	SMD/SMT	QFN-20	8051	8 bit	25 MHz	8 kB	512 B	12 bit	16 I/O	2.2 V	3.6 V	+ 85 C	AEC-Q100	Tube
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V 8-bit MCU C8051F507-IM Silicon Labs 1: $15.06 437In Stock NRND	Mfr. Part No. C8051F507-IM Mouser Part No 634-C8051F507-IM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V 8-bit MCU	Datasheet	437In Stock	$15.06 $11.75 $10.92 $10.01 View $9.51 $9.32 $9.11 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	8051	8 bit	50 MHz	32 kB	4.25 kB	12 bit	25 I/O	1.8 V	5.25 V	+ 125 C	AEC-Q100	Tube
8-bit Microcontrollers - MCU 8051 25 MHz 4 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU EFM8SB10F4G-A-QFN20R Silicon Labs 2,500: $1.07 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. EFM8SB10F4G-A-QFN20R Mouser Part No 634-8SB10F4GAQF20R	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 4 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel $1.07 $1.05	Min.: 2,500 Mult.: 2,500 : 2,500	SMD/SMT	QFN-20	CIP-51 8051	8 bit	25 MHz	4 kB	512 B	12 bit	16 I/O	1.8 V	3.6 V	+ 85 C		Reel
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU EFM8BB50F4I-A-QFN16R Silicon Labs 3,000: $0.563 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. EFM8BB50F4I-A-QFN16R Mouser Part No 634-M8BB50F4IAQFN16R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU Learn More about Silicon Labs efm8bb50 mcus	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel $0.563 $0.548	Min.: 3,000 Mult.: 3,000 : 3,000	SMD/SMT	QFN-16		8 bit	50 MHz	4 kB	512 B	12 bit	12 I/O	1.8 V	5.5 V	+ 125 C		Reel
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB 8-bit MCU C8051F413-GMR Silicon Labs 1: $19.30 422In Stock NRND	Mfr. Part No. C8051F413-GMR Mouser Part No 634-C8051F413-GMR NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 16 kB 8-bit MCU	Datasheet	422In Stock	Cut Tape $19.30 $15.11 $14.06 $12.92 View Reel $11.14 $12.78 $12.04 $11.76 $11.14	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	QFN-28	8051	8 bit	50 MHz	16 kB	2.31 kB	12 bit	20 I/O	2 V	5.25 V	+ 85 C		Reel, Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU EFM8BB50F4I-A-QFN16 Silicon Labs 1: $1.24 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. EFM8BB50F4I-A-QFN16 Mouser Part No 634-M8BB50F4IAQFN16	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU Learn More about Silicon Labs efm8bb50 mcus	Datasheet	Non-Stocked Lead-Time 12 Weeks	$1.24 $0.879 $0.787 $0.688 View $0.641 $0.612 $0.588 $0.563 $0.548	Min.: 1 Mult.: 1	SMD/SMT	QFN-16		8 bit	50 MHz	4 kB	512 B	12 bit	12 I/O	1.8 V	5.5 V	+ 125 C		Cut Tape
8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V CY8C3866AXI-035 Infineon Technologies 900: $23.31 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. CY8C3866AXI-035 Mouser Part No 727-CY8C3866AXI-035	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	Non-Stocked Lead-Time 10 Weeks	$23.31 View Quote	Min.: 900 Mult.: 900	SMD/SMT	TQFP-100	8051	8 bit	67 MHz	64 kB	8 kB	20 bit	70 I/O	1.71 V	1.89 V	+ 85 C		Tray
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU EFM8BB52F32G-C-QFN20R Silicon Labs 1: $1.55 Non-Stocked Lead-Time 24 Weeks	Mfr. Part No. EFM8BB52F32G-C-QFN20R Mouser Part No 634-EFM852F32GQFN20R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU Learn More about Silicon Labs silabs efm8bb51 efm8bb52 busy bee mcus	Datasheet	Non-Stocked Lead-Time 24 Weeks	Cut Tape $1.55 $1.12 $1.01 $0.888 Reel $0.736 View $0.83 $0.794 $0.77 $0.717	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	QFN-20				16 kB	1.28 kB		16 I/O	1.8 V	5.5 V	+ 85 C		Reel, Cut Tape
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU EFM8BB50F4I-A-QFN12R Silicon Labs 3,000: $0.522 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. EFM8BB50F4I-A-QFN12R Mouser Part No 634-M8BB50F4IAQFN12R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU Learn More about Silicon Labs efm8bb50 mcus	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel $0.522 $0.509	Min.: 3,000 Mult.: 3,000 : 3,000	SMD/SMT	QFN-12		8 bit	50 MHz	4 kB	512 B	12 bit	9 I/O	1.8 V	5.5 V	+ 125 C		Reel
8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU EFM8BB50F8G-A-QFN16R Silicon Labs 3,000: $0.596 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. EFM8BB50F8G-A-QFN16R Mouser Part No 634-M8BB50F8GAQFN16R	Silicon Labs	8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU Learn More about Silicon Labs efm8bb50 mcus	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel $0.596 $0.581	Min.: 3,000 Mult.: 3,000 : 3,000	SMD/SMT	QFN-16		8 bit	50 MHz	8 kB	512 B	12 bit	12 I/O	1.8 V	5.5 V	+ 85 C		Reel
8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V CY8C3866AXI-039 Infineon Technologies 450: $23.73 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. CY8C3866AXI-039 Mouser Part No 727-CY8C3866AXI-039	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	Non-Stocked Lead-Time 10 Weeks	$23.73 View Quote	Min.: 450 Mult.: 450	SMD/SMT	TQFP-100	8051	8 bit	67 MHz	64 kB	8 kB	20 bit	72 I/O	1.71 V	1.89 V	+ 85 C		Tray