8051 Core Microcontrollers - MCU

Types of Microcontrollers - MCU
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Qty. RoHS Mounting Style
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Core
Data Bus Width
Maximum Clock Frequency
Program Memory Size
Data RAM Size
ADC Resolution
Number of I/Os
Supply Voltage - Min
Supply Voltage - Max
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Packaging
Microchip Technology 8-bit Microcontrollers - MCU C51ED2 64K FLASH 3-5.5V Ind
Datasheet
248In Stock
760Expected 27/08/2026
Min.: 1
Mult.: 1

SMD/SMT PLCC-68 8051 8 bit 60 MHz 64 kB 2 kB No ADC 48 I/O 2.7 V 5.5 V + 85 C Tube

Microchip Technology 8-bit Microcontrollers - MCU 64K FLASH 32KHz 3.5-5V Ind.
Datasheet
451In Stock
Min.: 1
Mult.: 1

SMD/SMT PLCC-44 8051 8 bit 60 MHz 64 kB 1.75 kB No ADC 34 I/O 2.7 V 5.5 V + 85 C Tube

Microchip Technology 8-bit Microcontrollers - MCU C51RB2 16K FLASH 5V COM
Datasheet
555In Stock
2,403Expected 04/09/2026
Min.: 1
Mult.: 1

SMD/SMT PLCC-44 8051 8 bit 60 MHz 16 kB 1.25 kB No ADC 32 I/O 2.7 V 5.5 V + 85 C Tube

Microchip Technology 8-bit Microcontrollers - MCU 32K FLASH 4.0 TO 5.5V - 24MHZ 5V
Datasheet
386In Stock
Min.: 1
Mult.: 1

SMD/SMT PLCC-44 8051 8 bit 24 MHz 32 kB 512 B No ADC 32 I/O 4 V 5.5 V + 85 C Tube
Microchip Technology 8-bit Microcontrollers - MCU 32K FLASH 4.0 TO 5.5V
Datasheet
498In Stock
Min.: 1
Mult.: 1

Through Hole PDIP-40 8051 8 bit 24 MHz 32 kB 512 B No ADC 32 I/O 4 V 5.5 V + 85 C Tube

Microchip Technology 8-bit Microcontrollers - MCU C51RD2 64K FLASH 3-5.5V
Datasheet
428In Stock
Min.: 1
Mult.: 1
: 500

SMD/SMT PLCC-44 8051 8 bit 60 MHz 64 kB 2 kB 34 I/O 2.7 V 5.5 V + 85 C Reel, Cut Tape

Microchip Technology 8-bit Microcontrollers - MCU 64kB Flash 2048B RAM 2.7V-5.5V
Datasheet
830In Stock
2,079Expected 04/09/2026
Min.: 1
Mult.: 1

SMD/SMT PLCC-44 8051 8 bit 60 MHz 64 kB 2 kB 32 I/O 2.7 V 5.5 V + 85 C Tube
Microchip Technology 8-bit Microcontrollers - MCU SINGLE CYCLE 4K FLASH-20MHZ 2.4-5.5V
Datasheet
1,646In Stock
Min.: 1
Mult.: 1

SMD/SMT SOIC-20 8051 8 bit 20 MHz 4 kB 256 B No ADC 15 I/O 2.4 V 5.5 V + 85 C Tube

Microchip Technology 8-bit Microcontrollers - MCU 8kB Flash 256B RAM 33MHz 2.7V-4.0V
Datasheet
1,375In Stock
Min.: 1
Mult.: 1

SMD/SMT PLCC-44 8051 8 bit 16 MHz 8 kB 256 B No ADC 32 I/O 2.7 V 4 V + 85 C Tube
Microchip Technology 8-bit Microcontrollers - MCU 4kB Flash 128B RAM 33MHz 4.0V-5.5V
Datasheet
1,692In Stock
Min.: 1
Mult.: 1

Through Hole PDIP-40 8051 8 bit 24 MHz 4 kB 128 B No ADC 32 I/O 4 V 5.5 V + 85 C Tube
Microchip Technology 8-bit Microcontrollers - MCU 12kB Flash 256B RAM 2.7V-5.5V
Datasheet
1,751In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-44 8051 8 bit 24 MHz 12 kB 256 B No ADC 32 I/O 2.7 V 5.5 V + 85 C Tray

Microchip Technology 8-bit Microcontrollers - MCU 12kB Flash 256B RAM 2.7V-5.5V
Datasheet
364In Stock
2,781Expected 04/09/2026
Min.: 1
Mult.: 1

SMD/SMT PLCC-44 8051 8 bit 24 MHz 12 kB 256 B No ADC 32 I/O 2.7 V 5.5 V + 85 C Tube
Microchip Technology 8-bit Microcontrollers - MCU 12kB Flash 256B RAM 2.7V-5.5V
Datasheet
770In Stock
Min.: 1
Mult.: 1

Through Hole PDIP-40 8051 8 bit 24 MHz 12 kB 256 B No ADC 32 I/O 2.7 V 5.5 V + 85 C Tube

Microchip Technology 8-bit Microcontrollers - MCU MCU 8-Bit HI Perform ROMless 3-5V
Datasheet
860In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 500

SMD/SMT PLCC-44 8051 8 bit 40 MHz 1 kB 1.25 kB No ADC 32 I/O 2.7 V 5.5 V + 85 C Reel, Cut Tape, MouseReel

Microchip Technology 8-bit Microcontrollers - MCU MCU 8-Bit HI Perform ROMless 3-5V
Datasheet
434In Stock
Min.: 1
Mult.: 1

SMD/SMT PLCC-44 8051 8 bit 40 MHz 1 kB 1.25 kB No ADC 32 I/O 2.7 V 5.5 V + 85 C Tube
Microchip Technology 8-bit Microcontrollers - MCU C51AC3 64kF ADC EEP TQFP44 ind 5V GREEN
Datasheet
256In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-64 8051 8 bit 60 MHz 64 kB 128 B 10 bit 36 I/O 3 V 5.5 V + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU CAN TQFP44 TRAY I. Bootloader UART GREEN
Datasheet
1,422In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-44 8051 8 bit 40 MHz 32 kB 1.25 kB 10 bit 34 I/O 3 V 5.5 V + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU C51ED2 64kF TQFP44 3-5.5V Ind GREEN
Datasheet
837In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-44 8051 8 bit 60 MHz 64 kB 2 kB 34 I/O 2.7 V 5.5 V + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU C51IC2 32Kf I2C 32KHz TQFP44 I. 5V GREEN
Datasheet
194In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-44 8051 8 bit 60 MHz 32 kB 1.25 kB No ADC 34 I/O 2.7 V 5.5 V + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU C51RB2 FLASH 16k TQFP44 ind 3V GREEN
Datasheet
1,000In Stock
Min.: 1
Mult.: 1
: 2,000

SMD/SMT TQFP-44 8051 8 bit 60 MHz 16 kB 1.25 kB No ADC 32 I/O 2.7 V 3.6 V + 85 C Reel, Cut Tape
Microchip Technology 8-bit Microcontrollers - MCU C51RC2 FLASH 32k TQFP44 Com 5V GREEN
Datasheet
859In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-44 8051 8 bit 60 MHz 32 kB 1.25 kB No ADC 32 I/O 2.7 V 5.5 V + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU C51RD2 64kF TQFP44 3-5.5V Ind. GREEN
Datasheet
427In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-44 8051 8 bit 60 MHz 64 kB 2 kB 34 I/O 2.7 V 5.5 V + 85 C Tray

Microchip Technology 8-bit Microcontrollers - MCU 24MHZ, PLCC, IND TEMP, GREEN, 5V
Datasheet
651In Stock
Min.: 1
Mult.: 1

SMD/SMT PLCC-44 8051 8 bit 24 MHz 20 kB 256 B No ADC 32 I/O 4 V 5.5 V + 85 C Tube
Microchip Technology 8-bit Microcontrollers - MCU 20K FLASH - 24MHZ IND TEMP 5V
Datasheet
936In Stock
Min.: 1
Mult.: 1

Through Hole PDIP-40 8051 8 bit 24 MHz 20 kB 256 B No ADC 32 I/O 4 V 5.5 V + 85 C Tube

Microchip Technology 8-bit Microcontrollers - MCU Single-Cycle 805124K ISP Flash,2.4-5.5V
Datasheet
738In Stock
Min.: 1
Mult.: 1

SMD/SMT PLCC-44 8051 8 bit 20 MHz 24 kB 256 B 10 bit 40 I/O 2.4 V 5.5 V + 85 C Tube