8051 microcontroller Embedded Processors & Controllers

Types of Embedded Processors & Controllers
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Qty. RoHS Product Type
Mounting Style
Package/Case
Core
Data Bus Width
Maximum Clock Frequency
Program Memory Size
Data RAM Size
ADC Resolution
Number of I/Os
Minimum Operating Temperature
Maximum Operating Temperature
Qualification
Packaging

Infineon Technologies 8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V
Datasheet
147In Stock
Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU SMD/SMT QFN-68 8051 8 bit 67 MHz 64 kB 8 kB 12 bit 28 I/O + 85 C Tray
Infineon Technologies 8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V
Datasheet
449In Stock
Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU SMD/SMT QFN-48 8051 8 bit 50 MHz 32 kB 4 kB 12 bit 29 I/O - 40 C + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU Single Cycle 8051 4K ISP FL
Datasheet
130In Stock
480Expected 2026/10/23
Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU SMD/SMT TQFP-44 8051 8 bit 20 MHz 4 kB 256 B No ADC 36 I/O - 40 C + 85 C Tray

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Busy Bee MCU
Datasheet
15,601In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

8-bit Microcontrollers - MCU SMD/SMT QFN-20 CIP-51 8051 8 bit 25 MHz 2 kB 256 B 12 bit 16 I/O - 40 C + 85 C Reel, Cut Tape, MouseReel

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Sleepy Bee MCU
Datasheet
3,429In Stock
6,300Expected 2026/10/09
Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU SMD/SMT QFN-20 CIP-51 8051 8 bit 25 MHz 2 kB 256 B 12 bit 16 I/O - 40 C + 85 C Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Sleepy Bee MCU
Datasheet
6,068In Stock
9,000Expected 2026/09/01
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

8-bit Microcontrollers - MCU SMD/SMT QFN-20 CIP-51 8051 8 bit 25 MHz 2 kB 256 B 12 bit 16 I/O - 40 C + 85 C Reel, Cut Tape, MouseReel

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 64 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
Datasheet
1,161In Stock
Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU SMD/SMT QFN-32 CIP-51 8051 8 bit 25 MHz 64 kB 4.25 kB 10 bit 24 I/O - 40 C + 85 C Tube
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU
Datasheet
959In Stock
Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU SMD/SMT SOIC-16 8 bit 50 MHz 16 kB 512 B 12 bit 12 I/O - 40 C + 125 C Tube
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU
Datasheet
995In Stock
Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU SMD/SMT SOIC-16 8 bit 50 MHz 8 kB 512 B 12 bit 12 I/O - 40 C + 85 C Tube
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU
Datasheet
648In Stock
Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU SMD/SMT SOIC-16 8 bit 50 MHz 4 kB 512 B 12 bit 12 I/O - 40 C + 125 C Tube
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
Datasheet
12,398In Stock
Min.: 1
Mult.: 1
: 2,500
8-bit Microcontrollers - MCU SMD/SMT QFN-20 16 kB 1.28 kB 16 I/O - 40 C + 85 C Reel, Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU
Datasheet
1,546In Stock
Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU SMD/SMT SOIC-16 8 bit 50 MHz 16 kB 512 B 12 bit 12 I/O - 40 C + 85 C Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU
Datasheet
4,233In Stock
Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU SMD/SMT QFN-20 CIP-51 8051 8 bit 25 MHz 8 kB 512 B 12 bit 16 I/O - 40 C + 85 C Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU
Datasheet
8,908In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

8-bit Microcontrollers - MCU SMD/SMT QFN-20 CIP-51 8051 8 bit 25 MHz 8 kB 512 B 12 bit 16 I/O - 40 C + 85 C Reel, Cut Tape, MouseReel
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU
Datasheet
607In Stock
Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU SMD/SMT QFN-12 8 bit 50 MHz 16 kB 512 B 12 bit 9 I/O - 40 C + 85 C Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU
Datasheet
1,000In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

8-bit Microcontrollers - MCU SMD/SMT QFN-16 8 bit 50 MHz 16 kB 512 B 12 bit 12 I/O - 40 C + 85 C Reel, Cut Tape, MouseReel

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU
Datasheet
12,671In Stock
73,500On Order
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

8-bit Microcontrollers - MCU SMD/SMT QFN-20 CIP-51 8051 8 bit 25 MHz 8 kB 512 B 12 bit 16 I/O - 40 C + 85 C Reel, Cut Tape, MouseReel
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU
Datasheet
973In Stock
Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU SMD/SMT QFN-16 8 bit 50 MHz 16 kB 512 B 12 bit 12 I/O - 40 C + 85 C Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU
Datasheet
706In Stock
Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU SMD/SMT QFN-12 8 bit 50 MHz 4 kB 512 B 12 bit 9 I/O - 40 C + 85 C Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU
Datasheet
3,031In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

8-bit Microcontrollers - MCU SMD/SMT CIP-51 8051 8 bit 25 MHz 8 kB 512 B 12 bit 17 I/O - 40 C + 85 C Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU 2K FLASH 24MHZ SOIC
Datasheet
504In Stock
Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU SMD/SMT SOIC-20 8051 8 bit 24 MHz 2 kB 256 B No ADC 15 I/O - 40 C + 85 C Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU
Datasheet
4,493In Stock
Min.: 1
Mult.: 1
: 1,500

8-bit Microcontrollers - MCU SMD/SMT QFN-28 CIP-51 8051 8 bit 50 MHz 16 kB 2.25 kB 12 bit 22 I/O - 40 C + 85 C Reel, Cut Tape

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 2 kB RAM 8-bit Universal Bee MCU
Datasheet
2,547In Stock
5,040Expected 2026/09/11
Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU SMD/SMT QFN-20 CIP-51 8051 8 bit 50 MHz 8 kB 2.25 kB 12 bit 13 I/O - 40 C + 85 C Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU
Datasheet
2,678In Stock
7,500On Order
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

8-bit Microcontrollers - MCU SMD/SMT CSP-16 CIP-51 8051 8 bit 25 MHz 8 kB 256 B 12 bit 13 I/O - 40 C + 85 C Reel, Cut Tape, MouseReel
Silicon Labs 8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU
Datasheet
980In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

8-bit Microcontrollers - MCU SMD/SMT QFN-24 CIP-51 8051 8 bit 72 MHz 32 kB 2.25 kB 10 bit/12 bit/14 bit 20 I/O - 40 C + 105 C Reel, Cut Tape, MouseReel