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
Mounting Style
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Minimum Operating Temperature
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Microchip Technology 8-bit Microcontrollers - MCU SINGLE CYC 4K FLASH -20MHZ 2.4-5.5V
Datasheet
73In Stock
Min.: 1
Mult.: 1

8051 4 kB 256 B TSSOP-20 20 MHz No ADC 15 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C 89LP Tube
Silicon Labs 8-bit Microcontrollers - MCU USB-Flash-64k-ADC-QFN32 OTP available (T626-GM)
Datasheet
90In Stock
Min.: 1
Mult.: 1
Reel: 1.500

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 Reel, Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V CAN LIN 8-bit MCU
Datasheet
6In 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 C8051F506 AEC-Q100 Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 MHz 16 kB flash industrial 8-bit MCU
Datasheet
6In Stock
Min.: 1
Mult.: 1

8051 16 kB 1.25 kB QFN-32 50 MHz 12 bit 25 I/O 1.8 V 5.25 V SMD/SMT 8 bit - 40 C + 125 C C8051F541 AEC-Q100 Tube

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

8051 32 kB 4.25 kB QFN-32 25 MHz 10 bit 24 I/O 900 mV 3.6 V SMD/SMT 8 bit - 40 C + 85 C Tube
Analog Devices / Maxim Integrated 8-bit Microcontrollers - MCU High-Speed/Low-Power Microcontrollers
Datasheet
12In Stock
Min.: 1
Mult.: 1

8051 64 kB 256 B PDIP-40 33 MHz No ADC 32 I/O 4.5 V 5.5 V Through Hole 8 bit - 40 C + 85 C DS80C320 Tube

Infineon Technologies 8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V
Datasheet
8In Stock
Min.: 1
Mult.: 1

8051 64 kB 8 kB QFN-68 50 MHz 12 bit 46 I/O 1.71 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C CY8C3246 Tray

Infineon Technologies 8-bit Microcontrollers - MCU PSoC 32KB FLASH 1.7-5.5V 38 I/O
Datasheet
23In Stock
Min.: 1
Mult.: 1
Reel: 2.000

8051 64 kB 8 kB QFN-68 50 MHz 12 bit 46 I/O 1.71 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C CY8C3246 Reel, Cut Tape
Infineon Technologies 8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V
Datasheet
134In Stock
Min.: 1
Mult.: 1

8051 32 kB 4 kB SSOP-48 50 MHz 12 bit 29 I/O 1.71 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C CY8C3445 Tube

Infineon Technologies 8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V
Datasheet
6In Stock
Min.: 1
Mult.: 1

8051 64 kB 8 kB QFN-68 50 MHz 12 bit 48 I/O 1.71 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C CY8C3446 Tray

Silicon Labs 8-bit Microcontrollers - MCU 25 MIPS, 8 kB, 256, SPI, UART, TSSOP20
Datasheet
52In Stock
Min.: 1
Mult.: 1

8051 8 kB 256 B TSSOP-20 25 MHz 12 bit 16 I/O 1.8 V 5.25 V SMD/SMT 8 bit - 40 C + 125 C C8051F531A Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V CAN 8-bit MCU
Datasheet
83In Stock
Min.: 1
Mult.: 1

8051 32 kB 2.25 kB QFN-40 50 MHz 12 bit 33 I/O 1.8 V 5.25 V SMD/SMT 8 bit - 40 C + 125 C C8051F569 AEC-Q100 Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 8 kB 8-bit MCU
Datasheet
12In Stock
Min.: 1
Mult.: 1

8051 8 kB 256 B QFN-11 25 MHz No ADC 8 I/O 2.7 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C C8051F301 Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 16 kB LFO 8-bit MCU
Datasheet
92In Stock
Min.: 1
Mult.: 1

8051 16 kB 768 B QFN-24 25 MHz 10 bit 21 I/O 2.7 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C C8051F338 Tube
Microchip Technology 8-bit Microcontrollers - MCU 8-Bit 16K+1K Flash 33MHz 3/16-Bit Timer
Datasheet
Product Comments
50In Stock
Min.: 1
Mult.: 1

8051 17 kB 512 B PDIP-40 33 MHz No ADC 32 I/O 4.5 V 5.5 V Through Hole 8 bit 0 C + 70 C SST89E54 Tube
Microchip Technology 8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU
Datasheet
960Expected 4/13/2026
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

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V 8-bit MCU
Datasheet
1.250Expected 3/3/2026
Min.: 1
Mult.: 1

8051 32 kB 4.25 kB QFP-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 Tray
Silicon Labs 8-bit Microcontrollers - MCU 64KB,16ADC,CAN,64Pin MCU
Datasheet
398Expected 3/3/2026
Min.: 1
Mult.: 1

8051 64 kB 4.25 kB TQFP-64 25 MHz 10 bit, 2 x 16 bit 24 I/O 2.7 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C C8051F061 Tray

Silicon Labs 8-bit Microcontrollers - MCU 8kB/768B RAM, 10b ADC, 10b DAC, QFN20 OTP available (T630-GM)
Datasheet
1.500Expected 3/6/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1.500

8051 8 kB 768 B QFN-20 25 MHz 10 bit 17 I/O 2.7 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C C8051F330 Reel, Cut Tape, MouseReel
Microchip Technology 8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V
Datasheet
800Expected 4/20/2026
Min.: 1
Mult.: 1

8051 64 kB 256 B TQFP-44 20 MHz 10 bit 36 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray

Microchip Technology 8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V
Datasheet
320On Order
Min.: 1
Mult.: 1

8051 64 kB 256 B LQFP-44 20 MHz 10 bit 40 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 8 kB 5 V LIN 8-bit MCU
Datasheet
674Expected 3/3/2026
Min.: 1
Mult.: 1

8051 8 kB 256 B TSSOP-20 25 MHz 12 bit 16 I/O 2 V 5.25 V SMD/SMT 8 bit - 40 C + 125 C C8051F530 AEC-Q100 Tube
Nuvoton 8-bit Microcontrollers - MCU 32KB Flash ROM, 2KB SRAM, 2 CHs of SPI,1T/8051
Datasheet
490Expected 3/25/2026
Min.: 1
Mult.: 1

8051 32 kB 2 kB QFN-33 24 MHz 12 bit 28 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 105 C Tray
Nuvoton 8-bit Microcontrollers - MCU 64KB Flash, 4KB SRAM, 2 CHs of SPI,1T/8051,LCD
Datasheet
500Expected 3/25/2026
Min.: 1
Mult.: 1

8051 64 kB 4 kB LQFP-64 24 MHz 12 bit 56 I/O 1.8 V 3.6 V SMD/SMT 8 bit - 40 C + 105 C Tray

Analog Devices / Maxim Integrated 8-bit Microcontrollers - MCU High-Speed Microcontroller
Datasheet
500Factory Stock Available
More Info Available
Min.: 500
Mult.: 500
Reel: 500

8051 64 kB 256 B PLCC-44 25 MHz No ADC 32 I/O 4 V 5.5 V SMD/SMT 8 bit 0 C + 70 C DS80C310 Reel