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8051 Core Embedded Processors & Controllers

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Core = 8051

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) Filter the results in the table by unit price based on your quantity.	Qty.	Mounting Style	Package/Case	Core	Number of I/Os	Data Bus Width	ADC Resolution
8-bit Microcontrollers - MCU CAN-STICK Bootloader UART IND AT89C51CC01UA-SLSUM Microchip Technology 1: £7.18 937In Stock 999Expected 09/11/2026	Mfr. Part No. AT89C51CC01UA-SLSUM Mouser Part No 556-A89C51C01UASLSUM	Microchip Technology	8-bit Microcontrollers - MCU CAN-STICK Bootloader UART IND Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	937In Stock 999Expected 09/11/2026	£7.18 £6.57 £5.96	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	34 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU 4K ISP FLASH 2.7 TO 5.5V - 24MHz AT89S51-24AU Microchip Technology 1: £1.58 3,659In Stock	Mfr. Part No. AT89S51-24AU Mouser Part No 556-A89S51-24AU	Microchip Technology	8-bit Microcontrollers - MCU 4K ISP FLASH 2.7 TO 5.5V - 24MHz	Datasheet	3,659In Stock	£1.58 £1.45 £1.32	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU CAN TQFP44 TRAY I. Bootloader CAN GREEN AT89C51CC01CAT-RLTUM Microchip Technology 1: £6.81 762In Stock	Mfr. Part No. AT89C51CC01CAT-RLTUM Mouser Part No 556-AT89C51CC01CATUM	Microchip Technology	8-bit Microcontrollers - MCU CAN TQFP44 TRAY I. Bootloader CAN GREEN Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	762In Stock	£6.81 £6.24 £5.66	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	34 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V AT89LP51ED2-20AAU Microchip Technology 1: £4.23 676In Stock	Mfr. Part No. AT89LP51ED2-20AAU Mouser Part No 556-AT89LP51ED220AAU	Microchip Technology	8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V Learn More about Microchip Technology atmelat89lp52	Datasheet	676In Stock	£4.23 £3.87 £3.51	Min.: 1 Mult.: 1	SMD/SMT	LQFP-44	8051	36 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V AT89LP51ID2-20AAU Microchip Technology 1: £4.53 267In Stock	Mfr. Part No. AT89LP51ID2-20AAU Mouser Part No 556-AT89LP51ID220AAU	Microchip Technology	8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V Learn More about Microchip Technology atmelat89lp52	Datasheet	267In Stock	£4.53 £4.42	Min.: 1 Mult.: 1	SMD/SMT	LQFP-44	8051	36 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU Single-Cycle 805132K ISP Flash,2.4-5.5V AT89LP51RC2-20AU Microchip Technology 1: £3.20 468In Stock	Mfr. Part No. AT89LP51RC2-20AU Mouser Part No 556-AT89LP51RC2-20AU	Microchip Technology	8-bit Microcontrollers - MCU Single-Cycle 805132K ISP Flash,2.4-5.5V Learn More about Microchip Technology atmelat89lp52	Datasheet	468In Stock	£3.20 £2.93 £2.65	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	40 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB 8-bit MCU C8051F311-GMR Silicon Labs 1: £9.28 355In Stock 3,000Expected 27/11/2026	Mfr. Part No. C8051F311-GMR Mouser Part No 634-C8051F311-GMR	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 16 kB 8-bit MCU	Datasheet	355In Stock 3,000Expected 27/11/2026	Cut Tape £9.28 £7.39 £6.70 £6.26 View Reel £5.46 £6.23 £5.81 £5.62 £5.46 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	SMD/SMT	QFN-28	8051	25 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU 8051 25 MHz 16 kB LFO 8-bit MCU C8051F338-GM Silicon Labs 1: £8.75 57In Stock NRND	Mfr. Part No. C8051F338-GM Mouser Part No 634-C8051F338-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 25 MHz 16 kB LFO 8-bit MCU	Datasheet	57In Stock	£8.75 £6.84 £6.37 £5.86 View £5.80 £5.46 £5.33 £5.05	Min.: 1 Mult.: 1	SMD/SMT	QFN-24	8051	21 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU C8051F381-GM Silicon Labs 1: £5.45 415In Stock 1,533Expected 18/06/2027 NRND	Mfr. Part No. C8051F381-GM Mouser Part No 634-C8051F381-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU Learn More about Silicon Labs silabs usb mcus	Datasheet	415In Stock 1,533Expected 18/06/2027	£5.45 £4.21 £3.88 £3.54 View £3.29 £3.28 £3.19	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	8051	25 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 8-bit MCU C8051F411-GM Silicon Labs 1: £10.14 1,052In Stock 1,533Expected 11/11/2026 NRND	Mfr. Part No. C8051F411-GM Mouser Part No 634-C8051F411-GM NRND	Silicon Labs	8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 8-bit MCU	Datasheet	1,052In Stock 1,533Expected 11/11/2026	£10.14 £8.33 £7.60 £7.18 View £7.15 £6.78 Quote	Min.: 1 Mult.: 1	SMD/SMT	QFN-28	8051	20 I/O	8 bit	12 bit
8-bit Microcontrollers - MCU 20 PINS UART 2K FLASH-2MHZ 4V-5.5V AT89C2051-12SU Microchip Technology 1: £1.13 59In Stock	Mfr. Part No. AT89C2051-12SU Mouser Part No 556-A89C205112SU	Microchip Technology	8-bit Microcontrollers - MCU 20 PINS UART 2K FLASH-2MHZ 4V-5.5V	Datasheet	59In Stock	£1.13 £1.05 £0.943	Min.: 1 Mult.: 1	SMD/SMT	SOIC-20	8051	15 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU 8051 4K FLASH 2.7 TO 5.5V 24MHZ 4V-5.5V AT89C4051-24SU Microchip Technology 1: £1.12 515In Stock	Mfr. Part No. AT89C4051-24SU Mouser Part No 556-A89C4051-24SU	Microchip Technology	8-bit Microcontrollers - MCU 8051 4K FLASH 2.7 TO 5.5V 24MHZ 4V-5.5V	Datasheet	515In Stock	£1.12 £1.03 £0.925	Min.: 1 Mult.: 1	SMD/SMT	SOIC-20	8051	15 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU C5130A 32K Flash USB AT89C5131A-PUTUM Microchip Technology 1: £5.67 130In Stock	Mfr. Part No. AT89C5131A-PUTUM Mouser Part No 556-A89C5131A-PUTUM	Microchip Technology	8-bit Microcontrollers - MCU C5130A 32K Flash USB	Datasheet	130In Stock	£5.67 £5.20 £4.71	Min.: 1 Mult.: 1	SMD/SMT	QFN-32	8051	34 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU C5131A 32K Flash USB Ind 3V AT89C5131A-TISUL Microchip Technology 1: £7.94 20In Stock	Mfr. Part No. AT89C5131A-TISUL Mouser Part No 556-A89C5131ATISUL	Microchip Technology	8-bit Microcontrollers - MCU C5131A 32K Flash USB Ind 3V	Datasheet	20In Stock	£7.94 £7.29	Min.: 1 Mult.: 1	SMD/SMT	SOIC-28	8051	18 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU C51-CAN Bootloader CAN AT89C51CC02CA-SISUM Microchip Technology 1: £6.45 28In Stock	Mfr. Part No. AT89C51CC02CA-SISUM Mouser Part No 556-A89C51C02CASISUM	Microchip Technology	8-bit Microcontrollers - MCU C51-CAN Bootloader CAN Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	28In Stock	£6.45 £5.92 £5.36	Min.: 1 Mult.: 1	SMD/SMT	PLCC-28	8051	20 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU CTRL Bootloader CAN AT89C51CC02CA-TISUM Microchip Technology 1: £6.14 43In Stock	Mfr. Part No. AT89C51CC02CA-TISUM Mouser Part No 556-A89C51C02CATISUM	Microchip Technology	8-bit Microcontrollers - MCU CTRL Bootloader CAN Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	43In Stock	£6.14 £5.63 £5.12	Min.: 1 Mult.: 1	SMD/SMT	SOIC-28	8051	20 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU CTRL Bootloader UART AT89C51CC02UA-SISUM Microchip Technology 1: £6.45 13In Stock	Mfr. Part No. AT89C51CC02UA-SISUM Mouser Part No 556-A89C51C02UASISUM	Microchip Technology	8-bit Microcontrollers - MCU CTRL Bootloader UART Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	13In Stock	£6.45 £5.92 £5.36	Min.: 1 Mult.: 1	SMD/SMT	PLCC-28	8051	20 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU CAN C51 64K FLASH CAN BOOT AT89C51CC03CA-SLSUM Microchip Technology 1: £8.70 43In Stock 81Expected 16/11/2026	Mfr. Part No. AT89C51CC03CA-SLSUM Mouser Part No 556-A89C51C03CASLSUM	Microchip Technology	8-bit Microcontrollers - MCU CAN C51 64K FLASH CAN BOOT Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	43In Stock 81Expected 16/11/2026	£8.70 £7.99 £7.22	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	36 I/O	8 bit	10 bit
8-bit Microcontrollers - MCU C51RB2 FLASH 5V 16k ind AT89C51RB2-3CSUM Microchip Technology 1: £5.63 178In Stock 480Expected 17/11/2026	Mfr. Part No. AT89C51RB2-3CSUM Mouser Part No 556-A89C51RB2-3CSUM	Microchip Technology	8-bit Microcontrollers - MCU C51RB2 FLASH 5V 16k ind Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	178In Stock 480Expected 17/11/2026	£5.63 £5.17 £4.68	Min.: 1 Mult.: 1	Through Hole	PDIP-40	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU 32kB Flash 1280B RAM 2.7V-5.5V AT89C51RC2-SLSUL Microchip Technology 1: £7.26 4In Stock	Mfr. Part No. AT89C51RC2-SLSUL Mouser Part No 556-A89C51RC2SLSUL	Microchip Technology	8-bit Microcontrollers - MCU 32kB Flash 1280B RAM 2.7V-5.5V Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	4In Stock	£7.26 £6.65 £6.01	Min.: 1 Mult.: 1	SMD/SMT	PLCC-44	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU 20K FLASH - 24MHZ AT89C55WD-24AU Microchip Technology 1: £2.37 313In Stock	Mfr. Part No. AT89C55WD-24AU Mouser Part No 556-A89C55WD-24AU	Microchip Technology	8-bit Microcontrollers - MCU 20K FLASH - 24MHZ	Datasheet	313In Stock	£2.37 £2.20	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU 2K FLASH 24MHZ SOIC AT89S2051-24SU Microchip Technology 1: £1.96 4In Stock	Mfr. Part No. AT89S2051-24SU Mouser Part No 556-A89S2051-24SU	Microchip Technology	8-bit Microcontrollers - MCU 2K FLASH 24MHZ SOIC	Datasheet	4In Stock	£1.96 £1.80 £1.63	Min.: 1 Mult.: 1	SMD/SMT	SOIC-20	8051	15 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU MCU 8-BIT AT80 CISC ROMless 3-5V AT80C51RD2-3CSUM Microchip Technology 1: £3.79 257In Stock	Mfr. Part No. AT80C51RD2-3CSUM Mouser Part No 556-AT80C51RD2-3CSUM	Microchip Technology	8-bit Microcontrollers - MCU MCU 8-BIT AT80 CISC ROMless 3-5V	Datasheet	257In Stock	£3.79 £3.47 £3.45	Min.: 1 Mult.: 1	Through Hole	PDIP-40	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU C51RB2 FLASH 16k TQFP44 ind 3V GREEN AT89C51RB2T-RLTUL Microchip Technology 1: £5.83 31In Stock	Mfr. Part No. AT89C51RB2T-RLTUL Mouser Part No 556-AT89C51RB2TLTUL	Microchip Technology	8-bit Microcontrollers - MCU C51RB2 FLASH 16k TQFP44 ind 3V GREEN Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	31In Stock	£5.83 £5.35 £4.85 £4.84	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	32 I/O	8 bit	No ADC
8-bit Microcontrollers - MCU C51RC2 FLASH 32k TQFP44 Com 5V GREEN AT89C51RC2T-RLTUM Microchip Technology 1: £6.15 39In Stock 1,440On Order	Mfr. Part No. AT89C51RC2T-RLTUM Mouser Part No 556-AT89C51RC2TLTUM	Microchip Technology	8-bit Microcontrollers - MCU C51RC2 FLASH 32k TQFP44 Com 5V GREEN Learn More about Microchip Technology microchip at89c51 mcus	Datasheet	39In Stock 1,440On Order	£6.15 £5.63 £5.10	Min.: 1 Mult.: 1	SMD/SMT	TQFP-44	8051	32 I/O	8 bit	No ADC