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
Maximum Operating Temperature
Qualification
Packaging
Nuvoton 8-bit Microcontrollers - MCU 64KB Flash, 4KB SRAM, 2 CHs of SPI,1T/8051,LCD
Datasheet
500In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-64 8051 8 bit 24 MHz 64 kB 4 kB 12 bit 56 I/O 1.8 V 3.6 V + 105 C Tray
Nuvoton 8-bit Microcontrollers - MCU 64KB Flash, 4KB SRAM, 2 CHs of SPI,1T/8051,LCD,TK
Datasheet
155In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-48 8051 8 bit 24 MHz 64 kB 4 kB 12 bit 42 I/O 1.8 V 3.6 V + 105 C Tray

Nuvoton 8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM
Datasheet
534In Stock
Min.: 1
Mult.: 1

SMD/SMT MSOP-10 8051 8 bit 24 MHz 8 kB 1 kB 12 bit 8 I/O 2.4 V 5.5 V + 105 C Tube

Nuvoton 8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM
Datasheet
5In Stock
5,106On Order
Min.: 1
Mult.: 1
: 74

SMD/SMT TSSOP-20 8051 8 bit 24 MHz 16 kB 1 kB 12 bit 18 I/O 2.4 V 5.5 V + 105 C Reel, Cut Tape

Nuvoton 8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM
Datasheet
744In Stock
Min.: 1
Mult.: 1

SMD/SMT TSSOP-20 8051 8 bit 24 MHz 32 kB 2 kB 12 bit 18 I/O 2.4 V 5.5 V + 105 C Tube

Nuvoton 8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM
Datasheet
676In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-32 8051 8 bit 24 MHz 32 kB 2 kB 12 bit 30 I/O 2.4 V 5.5 V + 105 C Tray
Nuvoton 8-bit Microcontrollers - MCU 32K Bytes Shared with LDROM
Datasheet
975In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-33 8051 8 bit 24 MHz 32 kB 2 kB 12 bit 30 I/O 2.4 V 5.5 V + 105 C Tray
Nuvoton 8-bit Microcontrollers - MCU 16K Bytes Shared with LDROM 0.4mm Pitch width
Datasheet
648In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-20 8051 8 bit 24 MHz 16 kB 1 kB 12 bit 18 I/O 2.4 V 5.5 V + 105 C Tray

Nuvoton 8-bit Microcontrollers - MCU Low Pin Count 8051 Series; 2.4V to 5.5V; -40 to 85
Datasheet
485In Stock
888Expected 4/20/2027
Min.: 1
Mult.: 1

SMD/SMT TSSOP-20 8051 8 bit 16 MHz 18 kB 256 B 12 bit 18 I/O 2.4 V 5.5 V + 105 C Tube

Microchip Technology 8-bit Microcontrollers - MCU C51AC2 32K FLASHADC EEP 5V
Datasheet
20In Stock
81Expected 9/11/2026
Min.: 1
Mult.: 1

SMD/SMT PLCC-44 8051 8 bit 40 MHz 32 kB 1.25 kB 10 bit 34 I/O 3 V 5.5 V + 85 C Tube
Microchip Technology 8-bit Microcontrollers - MCU LO-VLTG 8K ISP FLASH -16MHZ 2.7-5.5V
Datasheet
176In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-44 8051 8 bit 16 MHz 8 kB 256 B No ADC 32 I/O 2.7 V 4 V + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU Sngl-Cycle 8051 IND 2.4-3.6V 32K ISP FL
Datasheet
60In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-44 8051 8 bit 20 MHz 32 kB 4.25 kB 10 bit 38 I/O 2.4 V 3.6 V + 85 C Tray
Microchip Technology 8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V
Datasheet
144In Stock
1,600Expected 12/11/2026
Min.: 1
Mult.: 1

SMD/SMT TQFP-44 8051 8 bit 20 MHz 64 kB 256 B 10 bit 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
30In Stock
Min.: 1
Mult.: 1

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

Microchip Technology 8-bit Microcontrollers - MCU Single-Cycle 805124K ISP Flash,2.4-5.5V
Datasheet
209In Stock
Min.: 1
Mult.: 1

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

Microchip Technology 8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V
Datasheet
5In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-44 8051 8 bit 20 MHz 64 kB 256 B 10 bit 40 I/O 2.4 V 5.5 V + 85 C Tray
Texas Instruments RF Microcontrollers - MCU RF Bluetooth SMART S OC with USB BLE A 5 A 595-CC2540F128RHAR
Datasheet
250In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 250

SMD/SMT VQFN-40 8051 8 bit 128 kB 8 kB 2 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 16 kB LFO 8-bit MCU
Datasheet
57In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-24 8051 8 bit 25 MHz 16 kB 768 B 10 bit 21 I/O 2.7 V 3.6 V + 85 C Tube

Silicon Labs 8-bit Microcontrollers - MCU 8kB/768B RAM, 10b ADC, 10b DAC, QFN20 OTP available (T630-GM)
Datasheet
24In Stock
1,500Expected 10/23/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-20 8051 8 bit 25 MHz 8 kB 768 B 10 bit 17 I/O 2.7 V 3.6 V + 85 C Reel, Cut Tape, MouseReel

Microchip Technology 8-bit Microcontrollers - MCU 32kB Flash 1280B RAM 2.7V-5.5V
Datasheet
4In Stock
Min.: 1
Mult.: 1

SMD/SMT PLCC-44 8051 8 bit 60 MHz 32 kB 1.25 kB No ADC 32 I/O 2.7 V 3.6 V + 85 C Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 8 kB 8-bit MCU
Datasheet
103In Stock
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-28 8051 8 bit 50 MHz 8 kB 768 B 16 bit 17 I/O 2.7 V 3.6 V + 85 C Reel, Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 8-bit MCU
Datasheet
21In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 8051 8 bit 48 MHz 32 kB 2.25 kB 10 bit 25 I/O 2.7 V 5.25 V + 85 C Tube
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

SMD/SMT QFN-32 8051 8 bit 50 MHz 32 kB 4.25 kB 12 bit 25 I/O 1.8 V 5.25 V + 125 C AEC-Q100 Tube
Infineon Technologies 8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V
Datasheet
33In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-100 8051 8 bit 50 MHz 16 kB 2 kB 12 bit 70 I/O 1.71 V 5.5 V + 85 C Tray

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

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