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8051 Core 8-bit 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.	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 Sngle-Cycle 8051 32K ISP Flsh,2.4-5.5V AT89LP51IC2-20AAU Microchip Technology 1: $6.41 294In Stock	Mfr. Part No. AT89LP51IC2-20AAU Mouser Part No 556-AT89LP51IC220AAU	Microchip Technology	8-bit Microcontrollers - MCU Sngle-Cycle 8051 32K ISP Flsh,2.4-5.5V Learn More about Microchip Technology atmelat89lp52	Datasheet	294In Stock	$6.41 $5.88 $5.34	Min.: 1 Mult.: 1	8051	32 kB	256 B	LQFP-44	20 MHz	10 bit	40 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C		Tray
8-bit Microcontrollers - MCU Keybrd & Embedded Cntlr MEC1310-NU Microchip Technology 1: $6.90 231In Stock	Mfr. Part No. MEC1310-NU Mouser Part No 579-MEC1310-NU	Microchip Technology	8-bit Microcontrollers - MCU Keybrd & Embedded Cntlr	Datasheet	231In Stock	$6.90 $5.92 $5.90 View Quote	Min.: 1 Mult.: 1	8051		64 kB	VTQFP-128	32 MHz	10 bit	56 I/O	3.3 V	3.3 V	SMD/SMT	8 bit	0 C	+ 85 C		Tray
8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers DS80C320-QCL+ Analog Devices / Maxim Integrated 1: $57.08 39In Stock	Mfr. Part No. DS80C320-QCL+ Mouser Part No 700-DS80C320-QCL	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	39In Stock	$57.08 $46.87 $39.06 $39.05 View $39.03 Quote	Min.: 1 Mult.: 1	8051	64 kB	256 B	PLCC-44	33 MHz	No ADC	32 I/O	4.5 V	5.5 V	SMD/SMT	8 bit	0 C	+ 70 C	DS80C320	Tube
8-bit Microcontrollers - MCU Ultra-High-Speed Flash Microcontrollers DS89C450-ENG+ Analog Devices / Maxim Integrated 1: $54.29 29In Stock	Mfr. Part No. DS89C450-ENG+ Mouser Part No 700-DS89C450-ENG	Analog Devices / Maxim Integrated	8-bit Microcontrollers - MCU Ultra-High-Speed Flash Microcontrollers	Datasheet	29In Stock	$54.29 $45.72 $43.67 $39.05 View $38.11 Quote	Min.: 1 Mult.: 1	8051	64 kB	1 kB	TQFP-44	33 MHz	No ADC	32 I/O	4.5 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	DS89C450	Tray
8-bit Microcontrollers - MCU Sngl-Cycle 8051 IND 2.4-3.6V 32K ISP FL AT89LP3240-20MU Microchip Technology 1: $6.46 315In Stock	Mfr. Part No. AT89LP3240-20MU Mouser Part No 556-AT89LP3240-20MU	Microchip Technology	8-bit Microcontrollers - MCU Sngl-Cycle 8051 IND 2.4-3.6V 32K ISP FL	Datasheet	315In Stock	$6.46 $5.94 $5.39	Min.: 1 Mult.: 1	8051	32 kB	4.25 kB	VQFN-44	20 MHz	10 bit	38 I/O	2.4 V	3.6 V	SMD/SMT	8 bit	- 40 C	+ 85 C		Tray
8-bit Microcontrollers - MCU 8kB Flash 256B RAM 33MHz 4.0V-5.5V AT89S52-24PU Microchip Technology 1: $5.00 5,838In Stock 7,260Expected 29/9/2026	Mfr. Part No. AT89S52-24PU Mouser Part No 556-A89S52-24PU	Microchip Technology	8-bit Microcontrollers - MCU 8kB Flash 256B RAM 33MHz 4.0V-5.5V	Datasheet	5,838In Stock 7,260Expected 29/9/2026	$5.00 $4.60 $4.18	Min.: 1 Mult.: 1	8051	8 kB	256 B	PDIP-40	24 MHz	No ADC	32 I/O	4 V	5.5 V	Through Hole	8 bit	- 40 C	+ 85 C	89S	Tube
8-bit Microcontrollers - MCU 12kB Flash 256B RAM 2.7V-5.5V AT89S8253-24JU Microchip Technology 1: $6.41 3,097In Stock	Mfr. Part No. AT89S8253-24JU Mouser Part No 556-A89S8253-24JU	Microchip Technology	8-bit Microcontrollers - MCU 12kB Flash 256B RAM 2.7V-5.5V	Datasheet	3,097In Stock	$6.41 $5.86 $5.81	Min.: 1 Mult.: 1	8051	12 kB	256 B	PLCC-44	24 MHz	No ADC	32 I/O	2.7 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	89S	Tube
8-bit Microcontrollers - MCU CAN C51 64KFLASH TQFP44 UARBOOT GREEN AT89C51CC03UAT-RLTUM Microchip Technology 1: $15.00 2,193In Stock	Mfr. Part No. AT89C51CC03UAT-RLTUM Mouser Part No 556-AT89C51CC03UATUM	Microchip Technology	8-bit Microcontrollers - MCU CAN C51 64KFLASH TQFP44 UARBOOT GREEN Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	2,193In Stock	$15.00 $13.75 $12.46	Min.: 1 Mult.: 1	8051	64 kB	2 kB	TQFP-44	60 MHz	10 bit	36 I/O	3 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C		Tray
8-bit Microcontrollers - MCU C51ED2 64kF TQFP44 3-5.5V Ind GREEN AT89C51ED2T-RLTUM Microchip Technology 1: $13.34 1,896In Stock	Mfr. Part No. AT89C51ED2T-RLTUM Mouser Part No 556-AT89C51ED2TLTUM	Microchip Technology	8-bit Microcontrollers - MCU C51ED2 64kF TQFP44 3-5.5V Ind GREEN Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	1,896In Stock	$13.34 $12.24 $11.08	Min.: 1 Mult.: 1	8051	64 kB	2 kB	TQFP-44	60 MHz		34 I/O	2.7 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C		Tray
8-bit Microcontrollers - MCU C51ID2 64kF 32KHz TQFP44 3-5.5V I. GREEN AT89C51ID2T-RLTUM Microchip Technology 1: $16.43 1,907In Stock	Mfr. Part No. AT89C51ID2T-RLTUM Mouser Part No 556-AT89C51ID2TLTUM	Microchip Technology	8-bit Microcontrollers - MCU C51ID2 64kF 32KHz TQFP44 3-5.5V I. GREEN Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	1,907In Stock	$16.43 $15.06 $13.65	Min.: 1 Mult.: 1	8051	64 kB	2 kB	TQFP-44	60 MHz	No ADC	34 I/O	2.7 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C		Tray
8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V AT89LP51ED2-20JU Microchip Technology 1: $8.05 3,221In Stock	Mfr. Part No. AT89LP51ED2-20JU Mouser Part No 556-AT89LP51ED2-20JU	Microchip Technology	8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V Learn More about Microchip Technology atmelat89lp52	Datasheet	3,221In Stock	$8.05 $7.36 $6.66	Min.: 1 Mult.: 1	8051	64 kB	256 B	PLCC-44	20 MHz	10 bit	40 I/O	2.4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C		Tube
8-bit Microcontrollers - MCU PSoC 32KB FLASH 1.7-5.5V 25 I/O CY8C3245LTI-139T Infineon Technologies 1: $14.86 2,655In Stock	Mfr. Part No. CY8C3245LTI-139T Mouser Part No 727-CY8C3245LTI-139T	Infineon Technologies	8-bit Microcontrollers - MCU PSoC 32KB FLASH 1.7-5.5V 25 I/O Learn More about Infineon Technologies cypress psoc	Datasheet	2,655In Stock	Cut Tape $14.86 $11.49 $10.96 $9.52 View Reel $8.32 $9.08 $8.32 $8.32 Quote	Min.: 1 Mult.: 1 : 2,000	8051			QFN-48						SMD/SMT	8 bit			CY8C3245	Reel, Cut Tape
8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V CY8C3446LTI-073 Infineon Technologies 1: $19.73 2,600In Stock	Mfr. Part No. CY8C3446LTI-073 Mouser Part No 727-CY8C3446LTI-073	Infineon Technologies	8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V Learn More about Infineon Technologies cypresspsoc3	Datasheet	2,600In Stock	$19.73 $16.09 $14.38 $13.83 View $13.25 $12.74 $12.47 Quote	Min.: 1 Mult.: 1	8051	64 kB	8 kB	QFN-48	50 MHz	12 bit	31 I/O	1.71 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	CY8C3446	Tray
8-bit Microcontrollers - MCU MCU with 2KB SRAM and 32Kx16 ECC E-Flash, QFN-24 (4mm x 4mm) IS31CS8974A-QFLS2-TR Lumissil 1: $2.83 2,500In Stock New Product	Mfr. Part No. IS31CS8974A-QFLS2-TR Mouser Part No 870-31CS8974AQFLS2TR New Product	Lumissil	8-bit Microcontrollers - MCU MCU with 2KB SRAM and 32Kx16 ECC E-Flash, QFN-24 (4mm x 4mm) Learn More about Lumissil is3xcs8974 mcus		2,500In Stock	Cut Tape $2.83 $1.81 $1.62 $1.33 Reel $0.84 View $1.16 $1.10 $0.922 $0.832	Min.: 1 Mult.: 1 : 2,500	8051	32 KB	2 KB	WQFN-24	25 MHz		20 I/O	2.5 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C		Reel, Cut Tape
8-bit Microcontrollers - MCU C51AC2 32kF ADC EEP TQFP44 ind 5V GREEN AT89C51AC2T-RLTUM Microchip Technology 1: $13.34 2,918In Stock	Mfr. Part No. AT89C51AC2T-RLTUM Mouser Part No 556-AT89C51AC2TLTUM	Microchip Technology	8-bit Microcontrollers - MCU C51AC2 32kF ADC EEP TQFP44 ind 5V GREEN Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	2,918In Stock	$13.34 $12.24 $11.08	Min.: 1 Mult.: 1	8051	32 kB	128 B	TQFP-44	40 MHz	10 bit	34 I/O	3 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C		Tray
8-bit Microcontrollers - MCU 20 PINS UART 2K FLASH-24MHZ 4-5.5V AT89C2051-24SU Microchip Technology 1: $1.96 2,549In Stock	Mfr. Part No. AT89C2051-24SU Mouser Part No 556-A89C2051-24SU	Microchip Technology	8-bit Microcontrollers - MCU 20 PINS UART 2K FLASH-24MHZ 4-5.5V	Datasheet	2,549In Stock	$1.96 $1.81 $1.63	Min.: 1 Mult.: 1	8051	2 kB	128 B	SOIC-20	24 MHz	No ADC	15 I/O	4 V	6 V	SMD/SMT	8 bit	- 40 C	+ 85 C	89C	Tube
8-bit Microcontrollers - MCU 8051 4K FLASH 2.7 TO 5.5V 24MHZ 4V-5.5V AT89C4051-24PU Microchip Technology 1: $2.88 944In Stock 1,404Expected 7/10/2026	Mfr. Part No. AT89C4051-24PU Mouser Part No 556-A89C4051-24PU	Microchip Technology	8-bit Microcontrollers - MCU 8051 4K FLASH 2.7 TO 5.5V 24MHZ 4V-5.5V	Datasheet	944In Stock 1,404Expected 7/10/2026	$2.88 $2.64 $2.39	Min.: 1 Mult.: 1	8051	4 kB	128 B	PDIP-20	24 MHz	No ADC	15 I/O	4 V	6 V	Through Hole	8 bit	- 40 C	+ 85 C	89C	Tube
8-bit Microcontrollers - MCU C51 16K Flash ADC AT89C5115-SISUM Microchip Technology 1: $13.15 396In Stock	Mfr. Part No. AT89C5115-SISUM Mouser Part No 556-A89C5115SISUM	Microchip Technology	8-bit Microcontrollers - MCU C51 16K Flash ADC Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	396In Stock	$13.15 $12.05 $10.89	Min.: 1 Mult.: 1	8051	16 kB	512 B	PLCC-28	40 MHz	10 bit	20 I/O	3 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	89C	Tube
8-bit Microcontrollers - MCU C5130A 16K Flash USB 5V AT89C5130A-RDTUM Microchip Technology 1: $12.48 166In Stock	Mfr. Part No. AT89C5130A-RDTUM Mouser Part No 556-A89C5130ARDTUM	Microchip Technology	8-bit Microcontrollers - MCU C5130A 16K Flash USB 5V Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	166In Stock	$12.48 $11.44 $11.30	Min.: 1 Mult.: 1	8051	16 kB	1 kB	VQFP-64	48 MHz	No ADC	34 I/O	2.7 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	89C	Tray
8-bit Microcontrollers - MCU C51AC3 64K FLASHADC EEP 5V AT89C51AC3-SLSUM Microchip Technology 1: $14.58 267In Stock	Mfr. Part No. AT89C51AC3-SLSUM Mouser Part No 556-A89C51AC3SLSUM	Microchip Technology	8-bit Microcontrollers - MCU C51AC3 64K FLASHADC EEP 5V Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	267In Stock	$14.58 $13.38 $12.10	Min.: 1 Mult.: 1	8051	64 kB	2 kB	PLCC-44	60 MHz	10 bit	36 I/O	3 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	89C	Tube
8-bit Microcontrollers - MCU CAN C51 64K FLASH UAR BOOT AT89C51CC03UA-RDTUM Microchip Technology 1: $14.57 416In Stock	Mfr. Part No. AT89C51CC03UA-RDTUM Mouser Part No 556-A89C51C03UARDTUM	Microchip Technology	8-bit Microcontrollers - MCU CAN C51 64K FLASH UAR BOOT Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	416In Stock	$14.57 $13.36 $12.08	Min.: 1 Mult.: 1	8051	64 kB	2 kB	VQFP-64	60 MHz	10 bit	36 I/O	3 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	89C	Tray
8-bit Microcontrollers - MCU 64kB Flash 2048B RAM 2.7V-5.5V AT89C51ED2-SLSUM Microchip Technology 1: $14.02 1,093In Stock	Mfr. Part No. AT89C51ED2-SLSUM Mouser Part No 556-A89C51ED2SLSUM	Microchip Technology	8-bit Microcontrollers - MCU 64kB Flash 2048B RAM 2.7V-5.5V Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	1,093In Stock	$14.02 $12.85 $11.64	Min.: 1 Mult.: 1	8051	64 kB	2 kB	PLCC-44	60 MHz	No ADC	34 I/O	2.7 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	89C	Tube
8-bit Microcontrollers - MCU C51ED2 64K FLASH 3-5.5V Ind AT89C51ED2-SMSUM Microchip Technology 1: $14.91 784In Stock	Mfr. Part No. AT89C51ED2-SMSUM Mouser Part No 556-A89C51ED2SMSUM	Microchip Technology	8-bit Microcontrollers - MCU C51ED2 64K FLASH 3-5.5V Ind Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	784In Stock	$14.91 $13.65 $12.38	Min.: 1 Mult.: 1	8051	64 kB	2 kB	PLCC-68	60 MHz	No ADC	48 I/O	2.7 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	89C	Tube
8-bit Microcontrollers - MCU C51RB2 16K FLASH 5V COM AT89C51RB2-SLSUM Microchip Technology 1: $10.21 1,787In Stock 3,618Expected 26/10/2026	Mfr. Part No. AT89C51RB2-SLSUM Mouser Part No 556-A89C51RB2SLSUM	Microchip Technology	8-bit Microcontrollers - MCU C51RB2 16K FLASH 5V COM Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	1,787In Stock 3,618Expected 26/10/2026	$10.21 $9.37 $8.50	Min.: 1 Mult.: 1	8051	16 kB	1.25 kB	PLCC-44	60 MHz	No ADC	32 I/O	2.7 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	89C	Tube
8-bit Microcontrollers - MCU 32K FLASH 4.0 TO 5.5V - 24MHZ 5V AT89C51RC-24JU Microchip Technology 1: $6.34 402In Stock 405Expected 27/10/2026	Mfr. Part No. AT89C51RC-24JU Mouser Part No 556-A89C51RC-24JU	Microchip Technology	8-bit Microcontrollers - MCU 32K FLASH 4.0 TO 5.5V - 24MHZ 5V Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	402In Stock 405Expected 27/10/2026	$6.34 $5.83 $5.77	Min.: 1 Mult.: 1	8051	32 kB	512 B	PLCC-44	24 MHz	No ADC	32 I/O	4 V	5.5 V	SMD/SMT	8 bit	- 40 C	+ 85 C	89C	Tube