8051 Core Microcontrollers - MCU

Types of Microcontrollers - MCU
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Qty. RoHS Mounting Style
Package / Case
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
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 12/4/2026
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 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 25 MHz 8 kB 5 V LIN 8-bit MCU
Datasheet
793In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-20 8051 8 bit 25 MHz 8 kB 256 B 12 bit 16 I/O 2 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 1/29/2027
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
1,244In 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
Analog Devices / Maxim Integrated 8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers
Datasheet
130In Stock
Min.: 1
Mult.: 1
Max.: 130

SMD/SMT TQFP-44 8051 8 bit 25 MHz 64 kB 256 B No ADC 32 I/O 4.5 V 5.5 V + 70 C Tray
Analog Devices / Maxim Integrated 8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers
Datasheet
128In Stock
Min.: 1
Mult.: 1
Max.: 128

Through Hole PDIP-40 8051 8 bit 25 MHz 64 kB 256 B No ADC 32 I/O 4.5 V 5.5 V + 70 C Tube
Analog Devices / Maxim Integrated 8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers
Datasheet
69In Stock
70Expected 8/26/2026
Min.: 1
Mult.: 1
Max.: 139

Through Hole PDIP-40 8051 8 bit 25 MHz 64 kB 256 B No ADC 32 I/O 4.5 V 5.5 V + 85 C Tube

Analog Devices / Maxim Integrated 8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers
Datasheet
68In Stock
Min.: 1
Mult.: 1
Max.: 68

SMD/SMT PLCC-44 8051 8 bit 25 MHz 64 kB 256 B No ADC 32 I/O 4.5 V 5.5 V + 70 C Tube
Analog Devices / Maxim Integrated 8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers
Datasheet
208In Stock
Min.: 1
Mult.: 1
Max.: 208

SMD/SMT TQFP-44 8051 8 bit 18 MHz 64 kB 256 B No ADC 32 I/O 2.7 V 5.5 V + 70 C Tray
Analog Devices / Maxim Integrated 8-bit Microcontrollers - MCU Dual CAN High-Speed Microprocessor
Datasheet
214In Stock
Min.: 1
Mult.: 1
Max.: 214

SMD/SMT LQFP-64 8051 8 bit 40 MHz 4 kB 4 kB No ADC 32 I/O 3.85 V 5.5 V + 85 C Tray

Analog Devices / Maxim Integrated 8-bit Microcontrollers - MCU EPROM/ROM High-Speed Microcontrollers
Datasheet
195In Stock
Min.: 1
Mult.: 1
Max.: 195

SMD/SMT PLCC-44 8051 8 bit 33 MHz 16 kB 1 kB No ADC 32 I/O 4.5 V 5.5 V + 70 C Tube
Analog Devices / Maxim Integrated 8-bit Microcontrollers - MCU Ultra-High-Speed Flash Microcontrollers
Datasheet
159In Stock
Min.: 1
Mult.: 1
Max.: 159

SMD/SMT TQFP-44 8051 8 bit 33 MHz 16 kB 1 kB No ADC 32 I/O 4.5 V 5.5 V + 85 C Tray
Analog Devices / Maxim Integrated 8-bit Microcontrollers - MCU Ultra-High-Speed Flash Microcontrollers
Datasheet
193In Stock
Min.: 1
Mult.: 1
Max.: 193

SMD/SMT TQFP-44 8051 8 bit 33 MHz 16 kB 1 kB No ADC 32 I/O 4.5 V 5.5 V + 85 C Tray
Analog Devices / Maxim Integrated 8-bit Microcontrollers - MCU Ultra-High-Speed Flash Microcontrollers
Datasheet
77In Stock
Min.: 1
Mult.: 1
Max.: 77

Through Hole PDIP-40 8051 8 bit 33 MHz 16 kB 1 kB No ADC 32 I/O 4.5 V 5.5 V + 85 C Tube

Analog Devices / Maxim Integrated 8-bit Microcontrollers - MCU Ultra-High-Speed Flash Microcontrollers
Datasheet
83In Stock
Min.: 1
Mult.: 1
Max.: 83

SMD/SMT PLCC-44 8051 8 bit 33 MHz 16 kB 1 kB No ADC 32 I/O 4.5 V 5.5 V + 85 C Tube
Analog Devices / Maxim Integrated 8-bit Microcontrollers - MCU Ultra-High-Speed Flash Microcontrollers
Datasheet
163In Stock
Min.: 1
Mult.: 1
Max.: 163

SMD/SMT TQFP-44 8051 8 bit 33 MHz 64 kB 1 kB No ADC 32 I/O 4.5 V 5.5 V + 85 C Tray
Analog Devices / Maxim Integrated 8-bit Microcontrollers - MCU Ultra-High-Speed Flash Microcontrollers
Datasheet
170In Stock
Min.: 1
Mult.: 1
Max.: 170

Through Hole PDIP-40 8051 8 bit 33 MHz 64 kB 1 kB No ADC 32 I/O 4.5 V 5.5 V + 85 C Tube

Nuvoton 8-bit Microcontrollers - MCU 16KB Flash ROM, 1KB SRAM, 1 CHs of SPI,1T/8051
Datasheet
785In Stock
Min.: 1
Mult.: 1

SMD/SMT MSOP-10 8051 8 bit 24 MHz 16 kB 1 kB 12 bit 7 I/O 1.8 V 5.5 V + 105 C Tube

Nuvoton 8-bit Microcontrollers - MCU 16KB Flash ROM, 1KB SRAM, 1 CHs of SPI,1T/8051
Datasheet
555In Stock
Min.: 1
Mult.: 1

SMD/SMT TSSOP-20 8051 8 bit 24 MHz 16 kB 1 kB 12 bit 16 I/O 1.8 V 5.5 V + 105 C Tube
Nuvoton 8-bit Microcontrollers - MCU 16KB Flash ROM, 1KB SRAM, 1 CHs of SPI,1T/8051
Datasheet
980In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-20 8051 8 bit 24 MHz 16 kB 1 kB 12 bit 17 I/O 1.8 V 5.5 V + 105 C Tray