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8051 Core 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 PSoC 64KB FLASH 1.7-5.5V 62 I/O CY8C3666AXI-052T Infineon Technologies 1,500: $10.62 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. CY8C3666AXI-052T Mouser Part No 727-CY8C3666AXI-052T	Infineon Technologies	8-bit Microcontrollers - MCU PSoC 64KB FLASH 1.7-5.5V 62 I/O Learn More about Infineon Technologies cypress psoc	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel $10.62 Quote Quote	Min.: 1,500 Mult.: 1,500 : 1,500	8051			TQFP-100		12 bit		1.71 V	1.89 V	SMD/SMT	8 bit			CY8C3666	Reel
8-bit Microcontrollers - MCU 64Kb Flash 8Kb SRAM PSoC 3 CY8C3666LTI-027T Infineon Technologies 2,000: $14.65 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. CY8C3666LTI-027T Mouser Part No 727-CY8C3666LTI-027T	Infineon Technologies	8-bit Microcontrollers - MCU 64Kb Flash 8Kb SRAM PSoC 3 Learn More about Infineon Technologies cypress psoc	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel $14.65	Min.: 2,000 Mult.: 2,000 : 2,000	8051					12 bit		1.71 V	1.89 V		8 bit			CY8C3666	Reel
8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V CY8C3666LTI-050 Infineon Technologies 1: $22.68 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. CY8C3666LTI-050 Mouser Part No 727-CY8C3666LTI-050	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	$22.68 $18.33 $17.57 $15.48 View $14.72 $14.30 Quote	Min.: 1 Mult.: 1	8051	64 kB	8 kB	QFN-48	67 MHz	12 bit	31 I/O	1.71 V	1.89 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3666	Tray
8-bit Microcontrollers - MCU 64Kb Flash 8Kb SRAM PSoC 3 CY8C3666LTI-050T Infineon Technologies 2,000: $13.93 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. CY8C3666LTI-050T Mouser Part No 727-CY8C3666LTI-050T	Infineon Technologies	8-bit Microcontrollers - MCU 64Kb Flash 8Kb SRAM PSoC 3 Learn More about Infineon Technologies cypress psoc	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel $13.93	Min.: 2,000 Mult.: 2,000 : 2,000	8051					12 bit		1.71 V	1.89 V		8 bit			CY8C3666	Reel
8-bit Microcontrollers - MCU 64K Flash 8K SRAM 8bit 67 MHz CY8C3666LTI-201 Infineon Technologies 1: $15.47 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. CY8C3666LTI-201 Mouser Part No 727-CY8C3666LTI-201	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 8K SRAM 8bit 67 MHz Learn More about Infineon Technologies cypresspsoc3	Datasheet	Non-Stocked Lead-Time 10 Weeks	$15.47 $12.38 $11.98 $10.86 View $10.46 $10.20 $9.96 Quote	Min.: 1 Mult.: 1	8051	64 kB	8 kB	QFN-68	67 MHz	12 bit	46 I/O	1.71 V	1.89 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3666	Tray
8-bit Microcontrollers - MCU 5.50 V, PSoC 3 CapSense Plus CY8C3666LTI-201T Infineon Technologies 2,000: $9.65 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. CY8C3666LTI-201T Mouser Part No 727-CY8C3666LTI-201T	Infineon Technologies	8-bit Microcontrollers - MCU 5.50 V, PSoC 3 CapSense Plus Learn More about Infineon Technologies cypress psoc	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel $9.65 Quote Quote	Min.: 2,000 Mult.: 2,000 : 2,000	8051					12 bit		1.71 V	1.89 V		8 bit			CY8C3666	Reel
8-bit Microcontrollers - MCU 5.50 V, PSoC 3 CapSense Plus CY8C3666LTI-203T Infineon Technologies 2,000: $10.66 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. CY8C3666LTI-203T Mouser Part No 727-CY8C3666LTI-203T	Infineon Technologies	8-bit Microcontrollers - MCU 5.50 V, PSoC 3 CapSense Plus Learn More about Infineon Technologies cypress psoc	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel $10.66 Quote Quote	Min.: 2,000 Mult.: 2,000 : 2,000	8051					12 bit		1.71 V	1.89 V		8 bit			CY8C3666	Reel
8-bit Microcontrollers - MCU 8051 8bit 67MHz 32KB CY8C3865AXI-019T Infineon Technologies 1,500: $14.93 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 $14.93 Quote Quote	Min.: 1,500 Mult.: 1,500 : 1,500	8051	32 kB	4 kB	TQFP-100	67 MHz	20 bit		1.71 V	1.89 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3865	Reel
8-bit Microcontrollers - MCU 32K Flash 67MHz 8051 0.5V to 5.5V CY8C3865LTI-014 Infineon Technologies 1,300: $13.61 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. CY8C3865LTI-014 Mouser Part No 727-CY8C3865LTI-014	Infineon Technologies	8-bit Microcontrollers - MCU 32K Flash 67MHz 8051 0.5V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	Non-Stocked Lead-Time 10 Weeks	$13.61 View Quote	Min.: 1,300 Mult.: 1,300	8051	32 kB	8 kB	QFN-68	67 MHz	20 bit	28 I/O	1.71 V	1.89 V	SMD/SMT	8 bit		+ 85 C	CY8C3865	Tray
8-bit Microcontrollers - MCU 32Kb Flash 4Kb SRAM PSoC 3 CY8C3865LTI-014T Infineon Technologies 2,000: $14.92 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. CY8C3865LTI-014T Mouser Part No 727-CY8C3865LTI-014T	Infineon Technologies	8-bit Microcontrollers - MCU 32Kb Flash 4Kb SRAM PSoC 3 Learn More about Infineon Technologies cypress psoc	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel $14.92	Min.: 2,000 Mult.: 2,000 : 2,000	8051										8 bit			CY8C3865	Reel
8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V CY8C3866AXI-035 Infineon Technologies 900: $17.14 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	$17.14 View Quote	Min.: 900 Mult.: 900	8051	64 kB	8 kB	TQFP-100	67 MHz	20 bit	70 I/O	1.71 V	1.89 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3866	Tray
8-bit Microcontrollers - MCU 32Kb Flash 4Kb SRAM PSoC 3 CY8C3866AXI-035T Infineon Technologies 1,500: $17.28 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. CY8C3866AXI-035T Mouser Part No 727-CY8C3866AXI-035T	Infineon Technologies	8-bit Microcontrollers - MCU 32Kb Flash 4Kb SRAM PSoC 3 Learn More about Infineon Technologies cypress psoc	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel $17.28 Quote Quote	Min.: 1,500 Mult.: 1,500 : 1,500	8051										8 bit			CY8C3866	Reel
8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V CY8C3866AXI-039 Infineon Technologies 450: $17.45 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	$17.45 View Quote	Min.: 450 Mult.: 450	8051	64 kB	8 kB	TQFP-100	67 MHz	20 bit	72 I/O	1.71 V	1.89 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3866	Tray
8-bit Microcontrollers - MCU 64Kb Flash 8Kb SRAM PSoC 3 CY8C3866AXI-039T Infineon Technologies 1,500: $17.52 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. CY8C3866AXI-039T Mouser Part No 727-CY8C3866AXI-039T	Infineon Technologies	8-bit Microcontrollers - MCU 64Kb Flash 8Kb SRAM PSoC 3 Learn More about Infineon Technologies cypress psoc	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel $17.52 Quote Quote	Min.: 1,500 Mult.: 1,500 : 1,500	8051										8 bit			CY8C3866	Reel
8-bit Microcontrollers - MCU 32K Flash 4K SRAM 8bit 67 MHz CY8C3866AXI-206 Infineon Technologies 450: $14.75 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. CY8C3866AXI-206 Mouser Part No 727-CY8C3866AXI-206	Infineon Technologies	8-bit Microcontrollers - MCU 32K Flash 4K SRAM 8bit 67 MHz Learn More about Infineon Technologies cypresspsoc3	Datasheet	Non-Stocked Lead-Time 10 Weeks	$14.75 View Quote	Min.: 450 Mult.: 450	8051	64 kB	8 kB	TQFP-100	67 MHz	20 bit	62 I/O	1.71 V	1.89 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3866	Tray
8-bit Microcontrollers - MCU 8051 8bit 67MHz 64KB CY8C3866LTI-030T Infineon Technologies 2,000: $15.10 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 $15.10	Min.: 2,000 Mult.: 2,000 : 2,000	8051	64 kB	8 kB	QFN-48	67 MHz	20 bit		1.71 V	1.89 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3866	Reel
8-bit Microcontrollers - MCU 64Kb Flash 8Kb SRAM PSoC 3 CY8C3866LTI-067T Infineon Technologies 2,000: $14.69 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. CY8C3866LTI-067T Mouser Part No 727-CY8C3866LTI-067T	Infineon Technologies	8-bit Microcontrollers - MCU 64Kb Flash 8Kb SRAM PSoC 3 Learn More about Infineon Technologies cypress psoc	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel $14.69	Min.: 2,000 Mult.: 2,000 : 2,000	8051										8 bit			CY8C3866	Reel
8-bit Microcontrollers - MCU 64K Flash 8K SRAM 8bit 67 MHz CY8C3866LTI-207 Infineon Technologies 2,600: $16.54 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. CY8C3866LTI-207 Mouser Part No 727-CY8C3866LTI-207	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 8K SRAM 8bit 67 MHz Learn More about Infineon Technologies cypress psoc	Datasheet	Non-Stocked Lead-Time 10 Weeks	$16.54 Quote Quote	Min.: 2,600 Mult.: 2,600	8051	64 kB	8 kB	QFN-68	67 MHz	20 bit	38 I/O	1.71 V	1.89 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3866	Tray
8-bit Microcontrollers - MCU PSoC 64KB FLASH 1.7-5.5V 25 I/O CY8C3866PVI-070T Infineon Technologies 1,000: $14.46 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. CY8C3866PVI-070T Mouser Part No 727-CY8C3866PVI-070T	Infineon Technologies	8-bit Microcontrollers - MCU PSoC 64KB FLASH 1.7-5.5V 25 I/O Learn More about Infineon Technologies cypress psoc	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel $14.46 View Quote	Min.: 1,000 Mult.: 1,000 : 1,000	8051			SSOP-48						SMD/SMT	8 bit			CY8C3866	Reel
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU C8051F342-GM Silicon Labs 1,533: $16.08 Non-Stocked Lead-Time 12 Weeks NRND	Mfr. Part No. C8051F342-GM Mouser Part No 634-C8051F342-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU Learn More about Silicon Labs silicon c8051f34x full speed flash mcus	Datasheet	Non-Stocked Lead-Time 12 Weeks	$16.08	Min.: 1,533 Mult.: 1,533	8051	64 kB	4.25 kB	QFN-32	48 MHz	10 bit	25 I/O	2.7 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F342	Tube
8-bit Microcontrollers - MCU 8051 25 MHz 64 kB 8-bit MCU C8051F346-GM Silicon Labs 1,533: $15.25 Non-Stocked Lead-Time 12 Weeks NRND	Mfr. Part No. C8051F346-GM Mouser Part No 634-C8051F346-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 64 kB 8-bit MCU Learn More about Silicon Labs silicon c8051f34x full speed flash mcus	Datasheet	Non-Stocked Lead-Time 12 Weeks	$15.25	Min.: 1,533 Mult.: 1,533	8051	64 kB	4.25 kB	QFN-32	25 MHz	10 bit	25 I/O	2.7 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F346	Tube
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU C8051F34A-GM Silicon Labs 1,533: $16.42 Non-Stocked Lead-Time 12 Weeks NRND	Mfr. Part No. C8051F34A-GM Mouser Part No 634-C8051F34A-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU Learn More about Silicon Labs silicon c8051f34x full speed flash mcus	Datasheet	Non-Stocked Lead-Time 12 Weeks	$16.42	Min.: 1,533 Mult.: 1,533	8051	64 kB	4.25 kB	LQFP-32	25 MHz	10 bit	25 I/O	2.7 V	5.25 V	SMD/SMT	8 bit	- 40 C	+ 85 C	C8051F34A	Tube
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB LFO 8-bit MCU C8051F391-A-GM Silicon Labs 1,911: $2.24 Non-Stocked Lead-Time 12 Weeks NRND	Mfr. Part No. C8051F391-A-GM Mouser Part No 634-C8051F391-A-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 16 kB LFO 8-bit MCU Learn More about Silicon Labs siliconlabs c8051f37x	Datasheet	Non-Stocked Lead-Time 12 Weeks	$2.24	Min.: 1,911 Mult.: 1,911	8051	16 kB	1 kB	QFN-24	50 MHz			1.8 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 105 C	C8051F391	Tube
8-bit Microcontrollers - MCU 8051 50 MHz 16 kB LFO 8-bit MCU C8051F394-A-GM Silicon Labs 1: $3.95 Non-Stocked Lead-Time 12 Weeks NRND	Mfr. Part No. C8051F394-A-GM Mouser Part No 634-C8051F394-A-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 16 kB LFO 8-bit MCU Learn More about Silicon Labs siliconlabs c8051f37x	Datasheet	Non-Stocked Lead-Time 12 Weeks	$3.95 $2.97 $2.73 $2.46 View $2.34 $2.32 $2.18 $2.13	Min.: 1 Mult.: 1	8051	8 kB	1 kB	QFN-24	50 MHz	10 bit	21 I/O	1.8 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 105 C	C8051F394	Tube
8-bit Microcontrollers - MCU 8051 50 MHz 8 kB LFO 8-bit MCU C8051F395-A-GM Silicon Labs 1,911: $2.01 Non-Stocked Lead-Time 12 Weeks NRND	Mfr. Part No. C8051F395-A-GM Mouser Part No 634-C8051F395-A-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 8 kB LFO 8-bit MCU Learn More about Silicon Labs siliconlabs c8051f37x	Datasheet	Non-Stocked Lead-Time 12 Weeks	$2.01 $1.97	Min.: 1,911 Mult.: 1,911	8051	8 kB	1 kB	QFN-24	50 MHz			1.8 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 105 C	C8051F395	Tube