8051 Core 8-bit Microcontrollers - MCU

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Qty. RoHS ECAD Model Core
Program Memory Size
Data RAM Size
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Maximum Clock Frequency
ADC Resolution
Number of I/Os
Supply Voltage - Min
Supply Voltage - Max
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Microchip Technology 8-bit Microcontrollers - MCU C51RC2 FLASH 32k TQFP44 Com 5V GREEN
Datasheet
859In Stock
Min.: 1
Mult.: 1

8051 32 kB 1.25 kB TQFP-44 60 MHz No ADC 32 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray

Microchip Technology 8-bit Microcontrollers - MCU 24MHZ, PLCC, IND TEMP, GREEN, 5V
Datasheet
305In Stock
513Expected 07/08/2026
Min.: 1
Mult.: 1

8051 20 kB 256 B PLCC-44 24 MHz No ADC 32 I/O 4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C AT89C55WD Tube
Microchip Technology 8-bit Microcontrollers - MCU 20K FLASH - 24MHZ IND TEMP 5V
Datasheet
976In Stock
Min.: 1
Mult.: 1

8051 20 kB 256 B PDIP-40 24 MHz No ADC 32 I/O 4 V 5.5 V Through Hole 8 bit - 40 C + 85 C AT89C55WD Tube

Microchip Technology 8-bit Microcontrollers - MCU Single-Cycle 805124K ISP Flash,2.4-5.5V
Datasheet
738In Stock
Min.: 1
Mult.: 1

8051 24 kB 256 B PLCC-44 20 MHz 10 bit 40 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tube

Microchip Technology 8-bit Microcontrollers - MCU Single-Cycle 805132K ISP Flash,2.4-5.5V
Datasheet
530In Stock
Min.: 1
Mult.: 1

8051 32 kB 256 B PLCC-44 20 MHz 10 bit 40 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tube
Microchip Technology 8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU
Datasheet
3,089In Stock
Min.: 1
Mult.: 1

8051 8 kB 256 B TQFP-44 20 MHz No ADC 36 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray

Microchip Technology 8-bit Microcontrollers - MCU 8kB Flash 256B RAM 33MHz 4.0V-5.5V
Datasheet
1,798In Stock
Min.: 1
Mult.: 1

8051 8 kB 256 B PLCC-44 24 MHz No ADC 32 I/O 4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C 89S Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU
Datasheet
175In Stock
1,250Expected 28/08/2026
Min.: 1
Mult.: 1

8051 64 kB 4.25 kB TQFP-48 48 MHz 10 bit 40 I/O 2.7 V 5.25 V SMD/SMT 8 bit - 40 C + 85 C C8051F340 Tray
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 8 kB 8-bit MCU
Datasheet
766In Stock
Min.: 1
Mult.: 1

8051 8 kB 768 B QFN-28 50 MHz 16 bit 17 I/O 2.7 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C C8051F353 Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU
Datasheet
1,000In Stock
Min.: 1
Mult.: 1

8051 64 kB 4.25 kB QFN-32 48 MHz 10 bit 25 I/O 2.7 V 5.25 V SMD/SMT 8 bit - 40 C + 85 C C8051F381 Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 16 kB LFO 8-bit MCU
Datasheet
3,237In Stock
Min.: 1
Mult.: 1

8051 16 kB 1 kB QFN-20 50 MHz 10 bit 17 I/O 1.8 V 3.6 V SMD/SMT 8 bit - 40 C + 105 C C8051F392 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

8051 64 kB 4.25 kB QFN-32 50 MHz 12 bit 25 I/O 1.8 V 5.25 V SMD/SMT 8 bit - 40 C + 125 C C8051F502 AEC-Q100 Tube
Silicon Labs 8-bit Microcontrollers - MCU 50 MIPS, 64 kB, 4 kB, CAN2.0, LIN 2.1, SPI, UART, I2C, QFN32
Datasheet
301In Stock
Min.: 1
Mult.: 1
: 1,500

8051 1.8 V 5.25 V 8 bit C8051F502 Reel, Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V 8-bit MCU
Datasheet
583In Stock
Min.: 1
Mult.: 1

8051 32 kB 4.25 kB QFN-32 50 MHz 12 bit 25 I/O 1.8 V 5.25 V SMD/SMT 8 bit - 40 C + 125 C C8051F507 AEC-Q100 Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V CAN LIN 8-bit MCU
Datasheet
1,364In Stock
Min.: 1
Mult.: 1

8051 32 kB 2.25 kB QFN-24 50 MHz 12 bit 18 I/O 1.8 V 5.25 V SMD/SMT 8 bit - 40 C + 125 C C8051F550 AEC-Q100 Tube
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

8051 32 kB 2.25 kB QFN-24 50 MHz 12 bit 18 I/O 1.8 V 5.25 V SMD/SMT 8 bit - 40 C + 125 C C8051F553 AEC-Q100 Tube
Infineon Technologies 8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V
Datasheet
449In Stock
Min.: 1
Mult.: 1

8051 32 kB 4 kB QFN-48 50 MHz 12 bit 29 I/O 1.71 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C CY8C3245 Tray

Infineon Technologies 8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V
Datasheet
733In Stock
Min.: 1
Mult.: 1

8051 32 kB 4 kB QFN-68 50 MHz 12 bit 46 I/O 1.71 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C CY8C3245 Tray
Infineon Technologies 8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V
Datasheet
371In Stock
Min.: 1
Mult.: 1

8051 64 kB 8 kB SSOP-48 50 MHz 12 bit 31 I/O 1.71 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C CY8C3246 Tube
Infineon Technologies 8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V
Datasheet
355In Stock
Min.: 1
Mult.: 1

8051 64 kB 8 kB TQFP-100 50 MHz 12 bit 72 I/O 1.71 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C CY8C3446 Tray

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

8051 64 kB 8 kB QFN-68 67 MHz 12 bit 28 I/O 1.71 V 1.89 V SMD/SMT 8 bit + 85 C CY8C3666 Tray

Infineon Technologies 8-bit Microcontrollers - MCU 32K Flash 4K SRAM 8bit 67 MHz
Datasheet
1,122In Stock
Min.: 1
Mult.: 1

8051 64 kB 8 kB QFN-68 67 MHz 12 bit 46 I/O 1.71 V 1.89 V SMD/SMT 8 bit - 40 C + 85 C CY8C3666 Tray
Infineon Technologies 8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V
Datasheet
307In Stock
Min.: 1
Mult.: 1

8051 64 kB 8 kB TQFP-100 67 MHz 20 bit 72 I/O 1.71 V 1.89 V SMD/SMT 8 bit - 40 C + 85 C CY8C3866 Tray
Infineon Technologies 8-bit Microcontrollers - MCU 8051 8bit 67MHz 64KB
Datasheet
574In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

8051 64 kB 8 kB TQFP-100 67 MHz 20 bit 72 I/O 1.71 V 1.89 V SMD/SMT 8 bit - 40 C + 85 C CY8C3866 Reel, Cut Tape, MouseReel
Infineon Technologies 8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V
Datasheet
237In Stock
Min.: 1
Mult.: 1

8051 64 kB 8 kB SSOP-48 67 MHz 20 bit 29 I/O 1.71 V 1.89 V SMD/SMT 8 bit - 40 C + 85 C CY8C3866 Tube