8051 microcontroller 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
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Supply Voltage - Max
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Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
Datasheet
151In Stock
Min.: 1
Mult.: 1

16 kB 1.28 kB QFN-20 16 I/O 1.8 V 5.5 V SMD/SMT - 40 C + 85 C Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
Datasheet
1,452In Stock
Min.: 1
Mult.: 1

16 kB 1.28 kB TSSOP-20 16 I/O 1.8 V 5.5 V SMD/SMT - 40 C + 85 C Cut Tape
Microchip Technology 8-bit Microcontrollers - MCU Sngl-Cycle 8051 IND 2.4-3.6V 32K ISP FL
Datasheet
60In Stock
Min.: 1
Mult.: 1

8051 32 kB 4.25 kB TQFP-44 20 MHz 10 bit 38 I/O 2.4 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C Tray
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU
Datasheet
1,358In Stock
Min.: 1
Mult.: 1

CIP-51 8051 64 kB 4.35 kB QFN-32 50 MHz 10 bit, 12 bit 29 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 125 C Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 4 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU
Datasheet
22In Stock
Min.: 1
Mult.: 1

CIP-51 8051 4 kB 512 B QFN-20 25 MHz 12 bit 16 I/O 1.8 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C Tube
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU
Datasheet
356In Stock
Min.: 1
Mult.: 1

4 kB 512 B QFN-16 50 MHz 12 bit 12 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C BB50 Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
Datasheet
380In Stock
Min.: 1
Mult.: 1

16 kB 1.28 kB TSSOP-20 16 I/O 1.8 V 5.5 V SMD/SMT - 40 C + 85 C Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
Datasheet
194In Stock
Min.: 1
Mult.: 1

16 kB 1.28 kB QFN-20 16 I/O 1.8 V 5.5 V SMD/SMT - 40 C + 85 C Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
Datasheet
146In Stock
Min.: 1
Mult.: 1

16 kB 1.28 kB TSSOP-20 16 I/O 1.8 V 5.5 V SMD/SMT - 40 C + 85 C Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
Datasheet
297In Stock
Min.: 1
Mult.: 1

16 kB 1.28 kB TSSOP-20 16 I/O 1.8 V 5.5 V SMD/SMT - 40 C + 85 C Cut Tape

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 4 kB flash 0.5 kB RAM 8-bit Busy Bee MCU
Datasheet
244In Stock
Min.: 1
Mult.: 1

CIP-51 8051 4 kB 512 B QFN-20 25 MHz 12 bit 16 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 125 C EFM8BB1 Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 48 MHz 64 kB flash 4 kB RAM 8-bit Universal Bee MCU
Datasheet
325In Stock
Min.: 1
Mult.: 1

CIP-51 8051 64 kB 4.25 kB QFN-32 48 MHz 10 bit 25 I/O 3.3 V 3.3 V SMD/SMT 8 bit - 40 C + 85 C EFM8UB2 Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU
Datasheet
20In Stock
Min.: 1
Mult.: 1

CIP-51 8051 8 kB 512 B 25 MHz 12 bit 16 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 125 C EFM8BB1 AEC-Q100 Tube
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 29 GPIO BB5 8-bit MCU
Datasheet
6In Stock
600Expected 08/09/2026
Min.: 1
Mult.: 1

16 kB 1.28 kB QFN-32 16 I/O 1.8 V 5.5 V SMD/SMT - 40 C + 85 C Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU
Datasheet
6In Stock
Min.: 1
Mult.: 1

16 kB 1.28 kB TSSOP-20 16 I/O 1.8 V 5.5 V SMD/SMT - 40 C + 85 C Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 29 GPIO BB5 8-bit MCU
Datasheet
1,696In Stock
Min.: 1
Mult.: 1

32 kB 2.25 kB QFN-32 16 I/O 1.8 V 5.5 V SMD/SMT - 40 C + 85 C Cut Tape

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
Datasheet
3,126In Stock
Min.: 1
Mult.: 1

CIP-51 8051 16 kB 2.3 kB QSOP-24 50 MHz 12 bit 21 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 125 C EFM8BB2 Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
Datasheet
1,070In Stock
Min.: 1
Mult.: 1

CIP-51 8051 16 kB 2.3 kB QFP-32 50 MHz 10 bit, 12 bit 28 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C Tray

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU
Datasheet
152In Stock
Min.: 1
Mult.: 1

CIP-51 8051 8 kB 512 B QSOP-24 25 MHz 12 bit 17 I/O 1.8 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU
Datasheet
88In Stock
9,800On Order
Min.: 1
Mult.: 1

CIP-51 8051 64 kB 4.35 kB QFN-32 50 MHz 10 bit, 12 bit 29 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C Tray
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 29 GPIO BB5 8-bit MCU
Datasheet
1,119In Stock
1,600On Order
Min.: 1
Mult.: 1

16 kB 1.28 kB QFN-32 12 bit 29I/O 1.8 V 5.5 V SMD/SMT - 40 C + 85 C Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 25 GPIO BB5 8-bit MCU
Datasheet
86In Stock
Min.: 1
Mult.: 1

16 kB 1.28 kB TSSOP-28 16 I/O 1.8 V 5.5 V SMD/SMT - 40 C + 85 C Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU
Datasheet
2,189In Stock
Min.: 1
Mult.: 1

16 kB 1.28 kB QFN-20 16 I/O 1.8 V 5.5 V SMD/SMT - 40 C + 85 C Cut Tape

Silicon Labs 8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU
Datasheet
36In Stock
Min.: 1
Mult.: 1

CIP-51 8051 16 kB 1.25 kB QFP-32 72 MHz 10 bit/12 bit/14 bit 28 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 105 C EFM8LB1 Tray
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
Datasheet
166In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

CIP-51 8051 16 kB 2.25 kB QFN-20 50 MHz 12 bit 16 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 125 C EFM8BB2 Reel, Cut Tape, MouseReel