8051 Family AT89C51 Series Microcontrollers 8-bit Microcontrollers

With SPI and LIN

The AT89C51RB2/RC2 is a high-performance Flash version of the 80C51 8-bit microcontroller.It contains a 16K or 32K Bytes Flash memory block for program and data.The Flash memory can be programmed either in parallel mode or serial mode withthe ISP capability or with software. The programming voltage is internally generatedfrom the standard VCC pin.

Maximum Core Frequency 40 MHz
Flash: Up to 32KB, ERAM: 1024B
Keyboard Interrupt Interface on Port P1
Interface: UART,
Dual Data Pointer
Asynchronous Port Reset
4x 8-bit I/O Ports
9 Interrupt Sources with 4 Priority Levels
3x 16-bit Timer/Counters
Applications: Digital Thermometer, Stepper moter driver.

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Manufacturer Part No	Order Code	Description / Manufacturer	Availability	Price For	Price (Incl JCT)	Quantity	Product Range	Device Core	Operating Frequency Max	Program Memory Size	No. of Pins	IC Case / Package	No. of I/O's	Interfaces	RAM Memory Size	ADC Channels	ADC Resolution	Supply Voltage Min	Supply Voltage Max	Operating Temperature Min	Operating Temperature Max	IC Mounting	MCU Family	MCU Series
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AT89C51ED2-SLSUM	1095726 Data Sheet + RoHS	8 Bit MCU, 8051 Family AT89C51 Series Microcontrollers, 8051, 60 MHz, 64 KB, 44 Pins, LCC MICROCHIP You previously purchased this product. View in Order History	2,215 available for 3 - 4 business days delivery + Check Stock & Lead Times 2,215 deliver in 3-4 business days from our UK warehouse :(UK stock) Order before 17:00 Mon-Fri (excluding National Holidays) More stock available week commencing 9/29/25	Each	1+ ¥1,547.54 (¥1,702.29) 25+ ¥1,509.79 (¥1,660.77) 100+ ¥1,472.03 (¥1,619.23)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	8051 Family AT89C51 Series Microcontrollers	8051	60MHz	64KB	44Pins	LCC	34I/O's	UART	2KB	-	-	2.7V	5.5V	-40°C	85°C	Surface Mount	8051	AT89C51
AT89C51RD2-SLSUM	2318813 Data Sheet + RoHS	8 Bit MCU, High Performance CMOS Flash, 8051 Family AT89C51 Series Microcontrollers, 8051, 60 MHz MICROCHIP You previously purchased this product. View in Order History	594 available for 3 - 4 business days delivery + Check Stock & Lead Times 594 deliver in 3-4 business days from our UK warehouse :(UK stock) Order before 17:00 Mon-Fri (excluding National Holidays) More stock available week commencing 9/29/25	Each	1+ ¥1,352.41 (¥1,487.65) 25+ ¥1,241.33 (¥1,365.46) 100+ ¥1,146.79 (¥1,261.47)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	8051 Family AT89C51 Series Microcontrollers	8051	60MHz	64KB	44Pins	LCC	34I/O's	UART	2KB	-	-	2.7V	5.5V	-40°C	85°C	Surface Mount	8051	AT89C51
AT89C51CC03UA-SLSUM	1095723 Data Sheet + RoHS	8 Bit MCU, 8051 Family AT89C51 Series Microcontrollers, 8051, 60 MHz, 64 KB, 44 Pins, LCC MICROCHIP You previously purchased this product. View in Order History	310 available for 3 - 4 business days delivery + Check Stock & Lead Times 310 deliver in 3-4 business days from our UK warehouse :(UK stock) Order before 17:00 Mon-Fri (excluding National Holidays) More stock available week commencing 9/29/25	Each	1+ ¥1,738.16 (¥1,911.98) 25+ ¥1,597.07 (¥1,756.78) 100+ ¥1,443.97 (¥1,588.37)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	8051 Family AT89C51 Series Microcontrollers	8051	60MHz	64KB	44Pins	LCC	36I/O's	CAN, SPI, UART	2.25KB	8Channels	10Bit	3V	5.5V	-40°C	85°C	Surface Mount	8051	AT89C51
AT89C51ED2-SMSUM	1095727 Data Sheet + RoHS	8 Bit MCU, 8051 Family AT89C51 Series Microcontrollers, 8051, 60 MHz, 64 KB, 68 Pins, LCC MICROCHIP You previously purchased this product. View in Order History	92 available for 3 - 4 business days delivery + Check Stock & Lead Times 92 deliver in 3-4 business days from our UK warehouse :(UK stock) Order before 17:00 Mon-Fri (excluding National Holidays) More stock available week commencing 9/15/25	Each	1+ ¥1,365.91 (¥1,502.50) 25+ ¥1,355.41 (¥1,490.95)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	8051 Family AT89C51 Series Microcontrollers	8051	60MHz	64KB	68Pins	LCC	50I/O's	UART	2KB	-	-	2.7V	5.5V	-40°C	85°C	Surface Mount	8051	AT89C51
AT89C51RC-24JU	2318809 Data Sheet + RoHS	8 Bit MCU, High Performance Flash, 8051 Family AT89C51 Series Microcontrollers, 8051, 24 MHz, 32 KB MICROCHIP You previously purchased this product. View in Order History	42 available for 3 - 4 business days delivery + Check Stock & Lead Times 42 deliver in 3-4 business days from our UK warehouse :(UK stock) Order before 17:00 Mon-Fri (excluding National Holidays) [162 more will be available on 9/25/25] More stock available week commencing 3/16/26	Each	1+ ¥988.97 (¥1,087.87) 25+ ¥865.35 (¥951.89) 100+ ¥717.00 (¥788.70)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	8051 Family AT89C51 Series Microcontrollers	8051	24MHz	32KB	44Pins	LCC	32I/O's	UART	512Byte	-	-	4V	5.5V	-40°C	85°C	Surface Mount	8051	AT89C51

AT89C51ED2-RDTUM	2318804 Data Sheet + RoHS	8 Bit MCU, High Performance CMOS, 8051 Family AT89C51 Series Microcontrollers, 8051, 60 MHz, 64 KB MICROCHIP You previously purchased this product. View in Order History		Each	1+ ¥1,999.80 (¥2,199.78) 25+ ¥1,749.83 (¥1,924.81) 100+ ¥1,449.86 (¥1,594.85) 160+ ¥1,299.87 (¥1,429.86)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	8051 Family AT89C51 Series Microcontrollers	8051	60MHz	64KB	64Pins	VQFP	50I/O's	SPI, UART	2KB	-	-	2.7V	5.5V	-40°C	85°C	Surface Mount	8051	AT89C51

AT89C51RC2-3CSUM	2318808 Data Sheet + RoHS	8 Bit MCU, High Performance Flash, 8051 Family AT89C51 Series Microcontrollers, 8051, 60 MHz, 32 KB MICROCHIP You previously purchased this product. View in Order History		Each	1+ ¥1,413.95 (¥1,555.35) 25+ ¥1,230.81 (¥1,353.89)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	8051 Family AT89C51 Series Microcontrollers	8051	60MHz	32KB	40Pins	DIP	32I/O's	UART	1KB	-	-	2.7V	5.5V	-40°C	85°C	Through Hole	8051	AT89C51

AT89C51RC-24AU	3380448 Data Sheet + RoHS	8 Bit MCU, 8051 Family AT89C51 Series Microcontrollers, 8051, 24 MHz, 32 KB, 44 Pins, TQFP MICROCHIP You previously purchased this product. View in Order History		Each	1+ ¥482.79 (¥531.07) 25+ ¥453.01 (¥498.31) 100+ ¥450.01 (¥495.01)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	8051 Family AT89C51 Series Microcontrollers	8051	24MHz	32KB	44Pins	TQFP	32I/O's	UART	512Byte	-	-	4V	5.5V	-40°C	85°C	Surface Mount	8051	AT89C51

AT89C51RB2-3CSUM	3131840 Data Sheet + RoHS	8 Bit MCU, 8051 Family AT89C51 Series Microcontrollers, 8051, 60 MHz, 16 KB, 40 Pins, DIP MICROCHIP You previously purchased this product. View in Order History		Each	1+ ¥1,125.75 (¥1,238.33) 25+ ¥938.11 (¥1,031.92)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	8051 Family AT89C51 Series Microcontrollers	8051	60MHz	16KB	40Pins	DIP	32I/O's	SPI, UART	1.25KB	-	-	2.7V	5.5V	-40°C	85°C	Through Hole	8051	AT89C51

AT89C51RD2-SLRUM	2810156 Data Sheet + RoHS	8 Bit MCU, 8051 Family AT89C51 Series Microcontrollers, 8051, 60 MHz, 64 KB, 44 Pins, LCC MICROCHIP You previously purchased this product. View in Order History		Each (Supplied on Cut Tape) Cut Tape	1+ ¥1,365.91 (¥1,502.50) 25+ ¥1,230.82 (¥1,353.90) 100+ ¥1,201.20 (¥1,321.32) 500+ ¥1,200.10 (¥1,320.11)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	8051 Family AT89C51 Series Microcontrollers	8051	60MHz	64KB	44Pins	LCC	32I/O's	UART	2KB	-	-	2.7V	5.5V	-40°C	85°C	Surface Mount	8051	AT89C51

AT89C51RC-24PU	3131811 Data Sheet + RoHS	8 Bit MCU, 8051 Family AT89C51 Series Microcontrollers, 8051, 24 MHz, 32 KB, 40 Pins, DIP MICROCHIP You previously purchased this product. View in Order History		Each	1+ ¥776.02 (¥853.62) 25+ ¥684.46 (¥752.91)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	8051 Family AT89C51 Series Microcontrollers	8051	24MHz	32KB	40Pins	DIP	32I/O's	UART	512Byte	-	-	4V	5.5V	-40°C	85°C	Through Hole	8051	AT89C51

AT89C51RC2-SLSUM	2318811 Data Sheet + RoHS	8 Bit MCU, High Performance Flash, 8051 Family AT89C51 Series Microcontrollers, 8051, 60 MHz, 32 KB MICROCHIP You previously purchased this product. View in Order History		Each	1+ ¥1,289.36 (¥1,418.30) 25+ ¥1,182.79 (¥1,301.07) 100+ ¥1,075.77 (¥1,183.35)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	8051 Family AT89C51 Series Microcontrollers	8051	60MHz	32KB	44Pins	LCC	32I/O's	SPI, UART	1KB	-	-	2.7V	5.5V	-40°C	85°C	Surface Mount	8051	AT89C51

AT89C51CC02CA-RATUM	3628389 Data Sheet + RoHS	8 Bit MCU, 8051 Family AT89C51 Series Microcontrollers, 8051, 40 MHz, 16 KB, 32 Pins, VQFP MICROCHIP You previously purchased this product. View in Order History		Each	1+ ¥1,226.32 (¥1,348.95) 25+ ¥1,125.75 (¥1,238.33) 100+ ¥1,075.19 (¥1,182.71) 250+ ¥1,049.56 (¥1,154.52)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	8051 Family AT89C51 Series Microcontrollers	8051	40MHz	16KB	32Pins	VQFP	20I/O's	CAN	512Byte	8Channels	10Bit	3V	5.5V	-40°C	85°C	Surface Mount	8051	AT89C51

AT89C51CC01UAT-RLTUM	4705910 New product Data Sheet + RoHS	8 Bit MCU, 8051 Family AT89C51 Series Microcontrollers, 8051, 40 MHz, 32 KB, 44 Pins, VQFP MICROCHIP You previously purchased this product. View in Order History		Each	1+ ¥1,361.41 (¥1,497.55) 25+ ¥1,247.34 (¥1,372.07) 100+ ¥1,130.26 (¥1,243.29) 160+ ¥1,107.66 (¥1,218.43)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	8051 Family AT89C51 Series Microcontrollers	8051	40MHz	32KB	44Pins	VQFP	34I/O's	UART	256Byte	8Channels	10Bit	3V	5.5V	-40°C	85°C	Surface Mount	8051	AT89C51

AT89C51CC03UAT-RLTUM	4705924 New product Data Sheet + RoHS	8 Bit MCU, 8051 Family AT89C51 Series Microcontrollers, 8051, 60 MHz, 64 KB, 44 Pins, VQFP MICROCHIP You previously purchased this product. View in Order History		Each	1+ ¥1,655.61 (¥1,821.17) 25+ ¥1,517.52 (¥1,669.27) 100+ ¥1,374.92 (¥1,512.41) 160+ ¥1,347.43 (¥1,482.17)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	8051 Family AT89C51 Series Microcontrollers	8051	60MHz	64KB	44Pins	VQFP	36I/O's	UART	2KB	8Channels	10Bit	3V	5.5V	-40°C	85°C	Surface Mount	8051	AT89C51

AT89C51ED2T-RLTUM	4705911 New product Data Sheet + RoHS	8 Bit MCU, 8051 Family AT89C51 Series Microcontrollers, 8051, 60 MHz, 64 KB, 44 Pins, VQFP MICROCHIP You previously purchased this product. View in Order History		Each	1+ ¥1,472.49 (¥1,619.74) 25+ ¥1,350.90 (¥1,485.99) 100+ ¥1,223.32 (¥1,345.65) 160+ ¥1,198.86 (¥1,318.75)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	8051 Family AT89C51 Series Microcontrollers	8051	60MHz	64KB	44Pins	VQFP	34I/O's	UART	2KB	-	-	2.7V	5.5V	-40°C	85°C	Surface Mount	8051	AT89C51

AT89C51IC2-SLSUL	3628404 Data Sheet + RoHS	8 Bit MCU, 8051 Family AT89C51 Series Microcontrollers, 8051, 40 MHz, 32 KB, 44 Pins, LCC MICROCHIP You previously purchased this product. View in Order History		Each	1+ ¥1,241.33 (¥1,365.46) 25+ ¥1,122.75 (¥1,235.03) 100+ ¥1,100.30 (¥1,210.33)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	8051 Family AT89C51 Series Microcontrollers	8051	40MHz	32KB	44Pins	LCC	34I/O's	I2C, SPI, UART	1KB	-	-	2.7V	3.6V	-40°C	85°C	Surface Mount	8051	AT89C51

AT89C51CC02UA-TISUM	2947732 Data Sheet + RoHS	8 Bit MCU, 8051 Family AT89C51 Series Microcontrollers, 8051, 40 MHz, 16 KB, 28 Pins, SOIC MICROCHIP You previously purchased this product. View in Order History		Each	1+ ¥1,226.32 (¥1,348.95) 25+ ¥1,125.75 (¥1,238.33) 100+ ¥1,022.19 (¥1,124.41)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	8051 Family AT89C51 Series Microcontrollers	8051	40MHz	16KB	28Pins	SOIC	20I/O's	UART	512Byte	8Channels	10Bit	3V	5.5V	-40°C	85°C	Surface Mount	8051	AT89C51

AT89C51AC3-S3SUM	2318794 Data Sheet + RoHS	8 Bit MCU, 8051 Family AT89C51 Series Microcontrollers, 8051, 60 MHz, 64 KB, 52 Pins, LCC MICROCHIP You previously purchased this product. View in Order History		Each	1+ ¥1,721.65 (¥1,893.82) 25+ ¥1,555.04 (¥1,710.54)	Restricted Item	8051 Family AT89C51 Series Microcontrollers	8051	60MHz	64KB	52Pins	LCC	36I/O's	UART	2KB	8Channels	10Bit	3V	5.5V	-40°C	85°C	Surface Mount	8051	AT89C51