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 64KB 20MHz 2.4V-5.5V
Datasheet
676In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-44 8051 8 bit 20 MHz 64 kB 256 B 10 bit 36 I/O 2.4 V 5.5 V + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU Single-Cycle 805132K ISP Flash,2.4-5.5V
Datasheet
593In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-44 8051 8 bit 20 MHz 32 kB 256 B 10 bit 40 I/O 2.4 V 5.5 V + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V
Datasheet
972In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-44 8051 8 bit 20 MHz 64 kB 256 B 10 bit 40 I/O 2.4 V 5.5 V + 85 C Tray
Texas Instruments RF Microcontrollers - MCU RF Bluetooth SMART S OC with USB BLE A 5 A 595-CC2540F128RHAT
Datasheet
646In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2.500

SMD/SMT VQFN-40 8051 8 bit 128 kB 8 kB 21 I/O 2 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 16 kB 8-bit MCU
Datasheet
555In Stock
3.000Expected 11/27/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

SMD/SMT QFN-28 8051 8 bit 25 MHz 16 kB 1.25 kB 10 bit 25 I/O 2.7 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 8-bit MCU
Datasheet
1.057In Stock
1.533Expected 11/20/2026
Min.: 1
Mult.: 1

SMD/SMT QFN-28 8051 8 bit 50 MHz 32 kB 2.31 kB 12 bit 20 I/O 2 V 5.25 V + 85 C Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 8-bit MCU
Datasheet
487In Stock
1.500Expected 2/24/2027
MouseReel Available
Min.: 1
Mult.: 1
: 1.500

SMD/SMT QFN-28 8051 8 bit 50 MHz 32 kB 2.25 kB 12 bit 20 I/O 2 V 5.25 V + 85 C Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU 8051 4K FLASH 2.7 TO 5.5V 24MHZ 4V-5.5V
Datasheet
615In Stock
Min.: 1
Mult.: 1

SMD/SMT SOIC-20 8051 8 bit 24 MHz 4 kB 128 B No ADC 15 I/O 4 V 6 V + 85 C Tube
Microchip Technology 8-bit Microcontrollers - MCU C5130A 32K Flash USB
Datasheet
130In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 8051 8 bit 48 MHz 32 kB 1 kB No ADC 34 I/O 2.7 V 5.5 V + 85 C Tray

Microchip Technology 8-bit Microcontrollers - MCU C5131A 32K Flash USB Ind 3V
Datasheet
21In Stock
Min.: 1
Mult.: 1

SMD/SMT SOIC-28 8051 8 bit 48 MHz 32 kB 1 kB No ADC 18 I/O 3 V 3.6 V + 85 C Tube

Microchip Technology 8-bit Microcontrollers - MCU C51-CAN Bootloader CAN
Datasheet
28In Stock
Min.: 1
Mult.: 1

SMD/SMT PLCC-28 8051 8 bit 40 MHz 16 kB 512 B 10 bit 20 I/O 3 V 5.5 V + 85 C Tube

Microchip Technology 8-bit Microcontrollers - MCU CTRL Bootloader CAN
Datasheet
43In Stock
Min.: 1
Mult.: 1

SMD/SMT SOIC-28 8051 8 bit 40 MHz 16 kB 512 B 10 bit 20 I/O 3 V 5.5 V + 85 C Tube

Microchip Technology 8-bit Microcontrollers - MCU CTRL Bootloader UART
Datasheet
13In Stock
Min.: 1
Mult.: 1

SMD/SMT PLCC-28 8051 8 bit 40 MHz 16 kB 512 B 10 bit 20 I/O 3 V 5.5 V + 85 C Tube

Microchip Technology 8-bit Microcontrollers - MCU CTRL Boodloader UART
Datasheet
54In Stock
Min.: 1
Mult.: 1

SMD/SMT SOIC-28 8051 8 bit 40 MHz 16 kB 512 B 10 bit 20 I/O 3 V 5.5 V + 85 C Tube

Microchip Technology 8-bit Microcontrollers - MCU CAN C51 64K FLASH CAN BOOT
Datasheet
99In Stock
Min.: 1
Mult.: 1

SMD/SMT PLCC-44 8051 8 bit 60 MHz 64 kB 2 kB 10 bit 36 I/O 3 V 5.5 V + 85 C Tube

Microchip Technology 8-bit Microcontrollers - MCU 64kB Flash 2048B RAM 2.7V-5.5V
Datasheet
13In Stock
1.107Expected 9/25/2026
Min.: 1
Mult.: 1

SMD/SMT PLCC-44 8051 8 bit 60 MHz 64 kB 2 kB No ADC 34 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
186In Stock
621On Order
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 32kB Flash 1280B RAM 2.7V-5.5V
Datasheet
4In Stock
Min.: 1
Mult.: 1

SMD/SMT PLCC-44 8051 8 bit 60 MHz 32 kB 1.25 kB No ADC 32 I/O 2.7 V 3.6 V + 85 C Tube

Microchip Technology 8-bit Microcontrollers - MCU C51RC2 32K FLASH 5V Com
Datasheet
151In Stock
Min.: 1
Mult.: 1

SMD/SMT PLCC-44 8051 8 bit 60 MHz 32 kB 1.25 kB No ADC 32 I/O 2.7 V 5.5 V + 85 C Tube
Microchip Technology 8-bit Microcontrollers - MCU 20K FLASH - 24MHZ
Datasheet
17In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-44 8051 8 bit 24 MHz 20 kB 256 B No ADC 32 I/O 4 V 5.5 V + 85 C Tray

Microchip Technology 8-bit Microcontrollers - MCU SINGLE CYCLE 2K FLASH-20MHZ 2.4-5.5V
Datasheet
8In Stock
Min.: 1
Mult.: 1

SMD/SMT TSSOP-20 8051 8 bit 20 MHz 2 kB 256 B 15 I/O 2.4 V 5.5 V + 85 C Tube

Microchip Technology 8-bit Microcontrollers - MCU SINGLE CYCLE 4K FLASH-20MHZ 2.4-5.5V
Datasheet
229In Stock
1.134Expected 10/2/2026
Min.: 1
Mult.: 1

Through Hole PDIP-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 2K FLASH 24MHZ SOIC
Datasheet
504In Stock
Min.: 1
Mult.: 1

SMD/SMT SOIC-20 8051 8 bit 24 MHz 2 kB 256 B No ADC 15 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
31In Stock
4.960On Order
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 MCU 8-BIT AT80 CISC ROMless 3-5V
Datasheet
190In Stock
270Expected 10/5/2026
Min.: 1
Mult.: 1

Through Hole PDIP-40 8051 8 bit 40 MHz 0 B 1.25 kB No ADC 32 I/O 2.7 V 5.5 V + 85 C Tube