AT89C51 8-Bit MCUs

Microchip Technology AT89C51 8-Bit MCUs offer low-power and high-performance with up to 32KB of flash programmable ROM and 512 bytes of RAM. The MCUs use Microchip high-density nonvolatile memory technology. The devices are compatible with the industry-standard 80C51 and 80C52 instruction set and pinout. On-chip flash allows the program memory to be user programmed by a conventional nonvolatile memory programmer. This versatile 8-bit CPU with flash provides a flexible and cost-effective solution for many embedded control applications.

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Qty. RoHS ECAD Model Core
Program Memory Size
Data RAM Size
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Maximum Clock Frequency
ADC Resolution
Number of I/Os
Supply Voltage - Min
Supply Voltage - Max
Mounting Style
Data Bus Width
Minimum Operating Temperature
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Series
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Microchip Technology 8-bit Microcontrollers - MCU C51RC2 FLASH 32k TQFP44 Ind 5V GREEN
Datasheet
2,832In Stock
¥1,526.5
¥1,400.2
¥1,269
Min.: 1
Mult.: 1
8051 32 kB 1.25 kB TQFP-44 60 MHz No ADC 32 I/O 2.7 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU CAN C51 64KFLASH TQFP44 CANBOOT GREEN
Datasheet
1,685In Stock
¥1,832.1
¥1,679.3
¥1,521.5
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
Microchip Technology 8-bit Microcontrollers - MCU C5130A 16K Flash USB 5V
Datasheet
501In Stock
¥1,382
¥1,270.7
¥1,255.7
Min.: 1
Mult.: 1
8051 16 kB 1 kB QFN-32 48 MHz No ADC 34 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C 89C Tray

Microchip Technology 8-bit Microcontrollers - MCU C51IC2 32K FLASH I2C 32KHz 3V
Datasheet
460In Stock
¥1,496.6
¥1,373.6
¥1,244.1
Min.: 1
Mult.: 1
8051 32 kB 1.25 kB PLCC-44 60 MHz No ADC 34 I/O 2.7 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C 89C Tube

Microchip Technology 8-bit Microcontrollers - MCU 64K FLASH 32KHz 3.5-5V Ind.
Datasheet
431In Stock
¥2,104.5
¥1,928.4
¥1,747.4
Min.: 1
Mult.: 1
8051 64 kB 1.75 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
Microchip Technology 8-bit Microcontrollers - MCU C51RD2 ROMless TQFP44 Ind 5V GREEN
Datasheet
1,629In Stock
¥661.1
¥606.3
¥549.8
Min.: 1
Mult.: 1
8051 1.25 kB TQFP-44 40 MHz No ADC 32 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU C51RB2 FLASH 16k TQFP44 ind 3V GREEN
Datasheet
631In Stock
¥1,290.6
¥1,184.3
¥1,071.3
Min.: 1
Mult.: 1
8051 16 kB 1.25 kB TQFP-44 60 MHz No ADC 32 I/O 2.7 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C Tray

Microchip Technology 8-bit Microcontrollers - MCU C51RB2 FLASH 3V 16k Ind
Datasheet
286In Stock
¥1,353.7
¥1,244.1
¥1,121.2
Min.: 1
Mult.: 1
8051 16 kB 1.25 kB PLCC-44 60 MHz No ADC 32 I/O 2.7 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C 89C Tube
Microchip Technology 8-bit Microcontrollers - MCU MCUs AT89x, 64KB Flash, TQFP-44
Datasheet
2,059In Stock
Cut Tape
¥1,425.1
¥1,388.6
Reel
¥1,184.3
Min.: 1
Mult.: 1
: 2,000
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 Reel, Cut Tape

Microchip Technology 8-bit Microcontrollers - MCU 16K Flash ADC
Datasheet
1,019In Stock
¥1,528.1
¥1,400.2
¥1,267.3
Min.: 1
Mult.: 1
8051 16 kB 512 B SOIC-28 40 MHz 10 bit 20 I/O 3 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C 89C Tube

Microchip Technology 8-bit Microcontrollers - MCU C51IC2 32K FLASH I2C 32KHz 5V
Datasheet
677In Stock
¥1,463.3
¥1,342.1
¥1,212.5
Min.: 1
Mult.: 1
8051 32 kB 1.25 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
Microchip Technology 8-bit Microcontrollers - MCU 32K FLASH 4.0 TO 5.5V
Datasheet
3,742In Stock
¥523.2
¥480
¥475
Min.: 1
Mult.: 1
8051 32 kB 512 B TQFP-44 24 MHz No ADC 32 I/O 4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C 89C Tray
Microchip Technology 8-bit Microcontrollers - MCU C51 16K Flash ADC
Datasheet
95In Stock
¥1,528.1
¥1,400.2
¥1,267.3
Min.: 1
Mult.: 1
8051 16 kB 512 B VQFP-32 40 MHz 10 bit 20 I/O 3 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C 89C Tray

Microchip Technology 8-bit Microcontrollers - MCU CAN 64K FLASH CAN BOOT
Datasheet
456In Stock
Cut Tape
¥1,923.4
¥1,876.9
Reel
¥1,597.9
MouseReel Available
Min.: 1
Mult.: 1
: 500
8051 64 kB 2.25 kB PLCC-44 40 MHz 36 I/O 3 V 5.5 V SMD/SMT 8 bit Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU C51IC2 32Kf I2C 32KHz TQFP44 I. 3V GREEN
Datasheet
160In Stock
¥1,425.1
¥1,305.5
¥1,184.3
Min.: 1
Mult.: 1
8051 32 kB 1.25 kB TQFP-44 60 MHz No ADC 34 I/O 2.7 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C Tray

Microchip Technology 8-bit Microcontrollers - MCU CAN C51 64K FLASH UAR BOOT
Datasheet
134In Stock
¥1,923.4
¥1,767.3
¥1,597.9
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
Microchip Technology 8-bit Microcontrollers - MCU C51ED2 64kF TQFP44 3-5.5V Ind Reel GREEN
Datasheet
397In Stock
Cut Tape
¥1,661
¥1,619.5
Reel
¥1,378.6
Min.: 1
Mult.: 1
: 2,000
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 Reel, Cut Tape

Microchip Technology 8-bit Microcontrollers - MCU Bootloader CAN
Datasheet
105In Stock
¥1,589.6
¥1,453.4
¥1,318.8
Min.: 1
Mult.: 1
8051 32 kB 1.2 kB PLCC-44 40 MHz 10 bit 34 I/O 3 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C 89C Tube
Microchip Technology 8-bit Microcontrollers - MCU CAN C51 64KFLASH TQFP44 UARBOOT GREEN
Datasheet
2,218In Stock
¥1,832.1
¥1,679.3
¥1,521.5
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
Microchip Technology 8-bit Microcontrollers - MCU C51ED2 64kF TQFP44 3-5.5V Ind GREEN
Datasheet
2,026In Stock
¥1,629.4
¥1,494.9
¥1,353.7
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
Microchip Technology 8-bit Microcontrollers - MCU C51ID2 64kF 32KHz TQFP44 3-5.5V I. GREEN
Datasheet
1,907In Stock
¥2,006.5
¥1,838.7
¥1,667.6
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
Microchip Technology 8-bit Microcontrollers - MCU C51AC2 32kF ADC EEP TQFP44 ind 5V GREEN
Datasheet
3,038In Stock
¥1,629.4
¥1,494.9
¥1,353.7
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

Microchip Technology 8-bit Microcontrollers - MCU C51 16K Flash ADC
Datasheet
396In Stock
¥1,606.2
¥1,471.6
¥1,330.5
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
Microchip Technology 8-bit Microcontrollers - MCU C5130A 16K Flash USB 5V
Datasheet
166In Stock
¥1,524.8
¥1,396.9
¥1,380.3
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

Microchip Technology 8-bit Microcontrollers - MCU C51AC3 64K FLASHADC EEP 5V
Datasheet
267In Stock
¥1,780.6
¥1,634.4
¥1,478.3
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