8051 microcontroller Microcontrollers - MCU

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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
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Core
Program Memory Size
Data Bus Width
ADC Resolution
Maximum Clock Frequency
Number of I/Os
Data RAM Size
Supply Voltage - Min
Supply Voltage - Max
Minimum Operating Temperature
Maximum Operating Temperature
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Packaging
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU
Datasheet
900In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 8051 64 kB 8 bit 10 bit 48 MHz 25 I/O 4.25 kB 2.7 V 5.25 V - 40 C + 85 C Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 8 kB 8-bit MCU
Datasheet
766In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-28 8051 8 kB 8 bit 16 bit 50 MHz 17 I/O 768 B 2.7 V 3.6 V - 40 C + 85 C Tube
Silicon Labs 8-bit Microcontrollers - MCU 64KB,16ADC,CAN,64Pin MCU
Datasheet
4 125In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-64 8051 64 kB 8 bit 10 bit, 2 x 16 bit 25 MHz 24 I/O 4.25 kB 2.7 V 3.6 V - 40 C + 85 C Tray

Silicon Labs 8-bit Microcontrollers - MCU 8051 100 MHz 128 kB MAC 8-bit MCU
Datasheet
1 248In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-64 8051 128 kB 8 bit 8 bit, 12 bit 100 MHz 32 I/O 8.25 kB 3 V 3.6 V - 40 C + 85 C Tray

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 64 kB CAN 8-bit MCU
Datasheet
835In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-64 8051 64 kB 8 bit 10 bit 25 MHz 32 I/O 4.25 kB 2.7 V 3.6 V - 40 C + 85 C Tray
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V 8-bit MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1
Mult.: 1

SMD/SMT QFN-24 8051 32 kB 8 bit 12 bit 50 MHz 18 I/O 2.25 kB 1.8 V 5.25 V - 40 C + 125 C AEC-Q100 Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 16 kB LFO 8-bit MCU
Datasheet
2 037In Stock
1 911Expected 11/2/2026
Min.: 1
Mult.: 1

SMD/SMT QFN-20 8051 16 kB 8 bit 10 bit 50 MHz 17 I/O 1 kB 1.8 V 3.6 V - 40 C + 105 C Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V 8-bit MCU
Datasheet
1 338In Stock
Min.: 1
Mult.: 1

SMD/SMT QFP-48 8051 64 kB 8 bit 12 bit 50 MHz 40 I/O 4.25 kB 1.8 V 5.25 V - 40 C + 125 C AEC-Q100 Tray
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V CAN LIN 8-bit MCU
Datasheet
514In Stock
1 911Expected 9/4/2026
Min.: 1
Mult.: 1

SMD/SMT QFN-24 8051 32 kB 8 bit 12 bit 50 MHz 18 I/O 2.25 kB 1.8 V 5.25 V - 40 C + 125 C AEC-Q100 Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V CAN LIN 8-bit MCU
Datasheet
5 023In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 8051 128 kB 8 bit 12 bit 50 MHz 25 I/O 8.25 kB 1.8 V 5.25 V - 40 C + 125 C AEC-Q100 Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU
Datasheet
548In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 8051 64 kB 8 bit 12 bit 50 MHz 25 I/O 4.25 kB 1.8 V 5.25 V - 40 C + 125 C AEC-Q100 Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V 8-bit MCU
Datasheet
583In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 8051 32 kB 8 bit 12 bit 50 MHz 25 I/O 4.25 kB 1.8 V 5.25 V - 40 C + 125 C AEC-Q100 Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 16 kB 8-bit MCU
Datasheet
860In Stock
3 000Expected 12/18/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1 500

SMD/SMT QFN-28 8051 16 kB 8 bit 10 bit 25 MHz 25 I/O 1.25 kB 2.7 V 3.6 V - 40 C + 85 C Reel, Cut Tape, MouseReel
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V 8-bit MCU
Datasheet
600In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-48 8051 64 kB 8 bit 12 bit 50 MHz 40 I/O 4.25 kB 1.8 V 5.25 V - 40 C + 125 C AEC-Q100 Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 2 kB 8-bit MCU
Datasheet
375In Stock
Min.: 1
Mult.: 1

SMD/SMT SOIC-16 8051 8 kB 8 bit 12 bit 25 MHz 13 I/O 512 B 2.2 V 3.6 V - 40 C + 85 C AEC-Q100 Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 16 kB LFO 8-bit MCU
Datasheet
1 458In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1 500

SMD/SMT QFN-20 8051 16 kB 8 bit 10 bit 25 MHz 17 I/O 768 B 2.7 V 3.6 V - 40 C + 85 C Reel, Cut Tape, MouseReel
Silicon Labs 8-bit Microcontrollers - MCU USB-Flash-16k-ADC-QFN28 OTP available (T321-GM)
Datasheet
208In Stock
1 533Expected 12/4/2026
Min.: 1
Mult.: 1

SMD/SMT QFN-28 CIP-51 8051 16 kB 8 bit 10 bit 25 MHz 21 I/O 2.3 kB 2.7 V 3.6 V - 40 C + 85 C Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 8-bit MCU
Datasheet
1 108In Stock
1 533Expected 12/18/2026
Min.: 1
Mult.: 1

SMD/SMT QFN-28 8051 32 kB 8 bit 12 bit 50 MHz 20 I/O 2.31 kB 2 V 5.25 V - 40 C + 85 C Tube
Silicon Labs 8-bit Microcontrollers - MCU 8KB,24ADC,28Pin MCU
Datasheet
97In Stock
Min.: 1
Mult.: 1
: 1 500

SMD/SMT QFN-28 8051 8 kB 8 bit 24 bit 50 MHz 17 I/O 768 B 2.7 V 3.6 V - 40 C + 85 C Reel, Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 16kB/1kB RAM, 10b ADC, 10b 2xDAC, QFN24
Datasheet
113In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1 500

SMD/SMT QFN-24 8051 16 kB 8 bit 10 bit 50 MHz 21 I/O 1 kB 1.8 V 3.6 V - 40 C + 105 C Reel, Cut Tape, MouseReel

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU
Datasheet
76In Stock
1 250Expected 8/25/2026
Min.: 1
Mult.: 1

SMD/SMT TQFP-48 8051 64 kB 8 bit 10 bit 48 MHz 40 I/O 4.25 kB 2.7 V 5.25 V - 40 C + 85 C Tray

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 32 kB 8-bit MCU
Datasheet
117In Stock
800Expected 1/8/2027
Min.: 1
Mult.: 1

SMD/SMT TQFP-64 8051 32 kB 8 bit 12 bit 25 MHz 32 I/O 2.25 kB 2.7 V 3.6 V - 40 C + 85 C Tray
Silicon Labs 8-bit Microcontrollers - MCU 64KB,16ADC,100Pin MCU
Datasheet
115In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 250

SMD/SMT TQFP-100 8051 64 kB 8 bit 16 bit 25 MHz 59 I/O 4.25 kB 2.7 V 3.6 V - 40 C + 85 C Reel, Cut Tape, MouseReel

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 32 kB 8-bit MCU
Datasheet
234In Stock
Min.: 1
Mult.: 1
: 500

SMD/SMT TQFP-64 8051 32 kB 8 bit 12 bit 25 MHz 32 I/O 2.25 kB 2.7 V 3.6 V - 40 C + 85 C Reel, Cut Tape

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 8-bit MCU
Datasheet
22In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-64 8051 128 kB 8 bit 8 bit, 10 bit 50 MHz 32 I/O 8.25 kB 2.7 V 3.6 V - 40 C + 85 C Tray