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
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Number of I/Os
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Supply Voltage - Max
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Packaging
Microchip Technology 8-bit Microcontrollers - MCU Single Cycle 8051 4K ISP FL
Datasheet
130In Stock
480Expected 28/09/2026
Min.: 1
Mult.: 1

SMD/SMT TQFP-44 8051 8 bit 20 MHz 4 kB 256 B No ADC 36 I/O 2.4 V 5.5 V + 85 C Tray

Microchip Technology 8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V
Datasheet
143In Stock
135On Order
Min.: 1
Mult.: 1

SMD/SMT PLCC-44 8051 8 bit 20 MHz 64 kB 256 B 10 bit 40 I/O 2.4 V 5.5 V + 85 C Tube
Microchip Technology 8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V
Datasheet
89In Stock
Min.: 1
Mult.: 1

Through Hole PDIP-40 8051 8 bit 20 MHz 64 kB 256 B 10 bit 40 I/O 2.4 V 5.5 V + 85 C Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU
Datasheet
76In Stock
1,250Expected 25/08/2026
Min.: 1
Mult.: 1

SMD/SMT TQFP-48 8051 8 bit 48 MHz 64 kB 4.25 kB 10 bit 40 I/O 2.7 V 5.25 V + 85 C Tray
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 bit 50 MHz 8 kB 768 B 24 bit 17 I/O 2.7 V 3.6 V + 85 C Reel, Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU USB-Flash-64k-ADC-QFN32 OTP available (T626-GM)
Datasheet
90In Stock
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-32 8051 8 bit 48 MHz 64 kB 4.25 kB 10 bit 25 I/O 2.7 V 5.25 V + 85 C Reel, Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 8-bit MCU
Datasheet
208In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 8051 8 bit 48 MHz 32 kB 2.3 kB 25 I/O 2.7 V 5.25 V + 85 C Tube
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 8 bit 50 MHz 16 kB 1 kB 10 bit 21 I/O 1.8 V 3.6 V + 105 C Reel, Cut Tape, MouseReel
Silicon Labs 8-bit Microcontrollers - MCU 16kB/1kB RAM, 10b ADC, 10b 2xDAC, QFN20
Datasheet
72In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-20 8051 8 bit 50 MHz 16 kB 1 kB 10 bit 17 I/O 1.8 V 3.6 V + 105 C Reel, Cut Tape, MouseReel

Silicon Labs 8-bit Microcontrollers - MCU 8kB/512B RAM, ADC, QFN20
Datasheet
559In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-20 8051 8 bit 25 MHz 8 kB 512 B 12 bit 16 I/O 2.2 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
Infineon Technologies 8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V
Datasheet
134In Stock
Min.: 1
Mult.: 1

SMD/SMT SSOP-48 8051 8 bit 50 MHz 32 kB 4 kB 12 bit 29 I/O 1.71 V 5.5 V + 85 C Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 32 kB 8-bit MCU
Datasheet
117In Stock
800Expected 08/01/2027
Min.: 1
Mult.: 1

SMD/SMT TQFP-64 8051 8 bit 25 MHz 32 kB 2.25 kB 12 bit 32 I/O 2.7 V 3.6 V + 85 C Tray

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 8 bit 25 MHz 32 kB 2.25 kB 12 bit 32 I/O 2.7 V 3.6 V + 85 C Reel, Cut Tape

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 64 kB 8-bit MCU
Datasheet
133In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-64 8051 8 bit 25 MHz 64 kB 4.35 kB 8 bit, 12 bit 32 I/O 2.7 V 3.6 V + 85 C Tray

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 64 kB 8-bit MCU
Datasheet
379In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 500

SMD/SMT TQFP-64 8051 8 bit 25 MHz 64 kB 4.35 kB 8 bit, 12 bit 32 I/O 2.7 V 3.6 V + 85 C Reel, Cut Tape, MouseReel

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 8 bit 25 MHz 64 kB 4.25 kB 10 bit 32 I/O 2.7 V 3.6 V + 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 8 bit 25 MHz 64 kB 4.25 kB 16 bit 59 I/O 2.7 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
Silicon Labs 8-bit Microcontrollers - MCU 50MIPS,128KB,12ADC,100Pin MCU
Datasheet
74In Stock
1,350Expected 04/12/2026
Min.: 1
Mult.: 1

SMD/SMT TQFP-100 8051 8 bit 50 MHz 128 kB 8.25 kB 8 bit, 12 bit 64 I/O 2.7 V 3.6 V + 85 C Tray
Silicon Labs 8-bit Microcontrollers - MCU USB-Flash-32k-ADC-TQFP48
Datasheet
298In Stock
Min.: 1
Mult.: 1
: 500

SMD/SMT TQFP-48 8051 8 bit 48 MHz 32 kB 2.25 kB 10 bit 40 I/O 2.7 V 5.25 V + 85 C Reel, Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU
Datasheet
181In Stock
Min.: 1
Mult.: 1

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

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V CAN LIN 8-bit MCU
Datasheet
397In Stock
2,500Expected 29/01/2027
Min.: 1
Mult.: 1

SMD/SMT PQFP-48 8051 8 bit 50 MHz 128 kB 8.25 kB 12 bit 40 I/O 1.8 V 5.25 V + 125 C AEC-Q100 Tray

Silicon Labs 8-bit Microcontrollers - MCU 32kB/4kB RAM, 10b ADC, DC-DC, 0.9V, QFN32
Datasheet
63In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 8051 8 bit 25 MHz 32 kB 4.25 kB 10 bit 24 I/O 900 mV 3.6 V + 85 C Tube

Silicon Labs 8-bit Microcontrollers - MCU 32kB/4kB RAM, 10b ADC, DC-DC, 0.9V, QFN32
Datasheet
1,318In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-32 8051 8 bit 25 MHz 32 kB 4.25 kB 10 bit 24 I/O 900 mV 3.6 V + 85 C Reel, Cut Tape, MouseReel

Silicon Labs 8-bit Microcontrollers - MCU 32kB/4kB RAM, 10bADC, DC-DC, 0.9V, QFN24
Datasheet
996In Stock
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-24 8051 8 bit 25 MHz 32 kB 4.25 kB 10 bit 16 I/O 900 mV 3.6 V + 85 C Reel, Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 64kB/4kB RAM, 10b ADC, DC-DC, 0.9V, QFN32
Datasheet
1,260In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 8051 8 bit 25 MHz 64 kB 4.25 kB 10 bit 24 I/O 1.8 V 3.6 V + 85 C Tube