8051 microcontroller 8-bit Microcontrollers - MCU

Results: 553
Select Image Part # Mfr. Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity. Qty. RoHS ECAD Model Core Program Memory Size Data RAM Size Package/Case Maximum Clock Frequency ADC Resolution Number of I/Os Supply Voltage - Min Supply Voltage - Max Mounting Style Data Bus Width Minimum Operating Temperature Maximum Operating Temperature Series Qualification Packaging
Microchip Technology 8-bit Microcontrollers - MCU Sngl-Cycle 8051 IND 2.4-3.6V 32K ISP FL 60In Stock
$10.49
$9.65
$9.49
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 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU 36In Stock
$3.00
$2.24
$2.04
$1.83
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
Microchip Technology 8-bit Microcontrollers - MCU 2K FLASH 24MHZ SOIC 3In Stock
$2.61
$2.39
$2.18
Min.: 1
Mult.: 1
8051 2 kB 256 B SOIC-20 24 MHz No ADC 15 I/O 2.7 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C 89S Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU
17,031On Order
$1.64
$1.22
$1.11
$0.979
Min.: 1
Mult.: 1
CIP-51 8051 8 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 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU
49,037On Order
Cut Tape
$2.64
$2.21
$1.94
$1.84
Reel
$1.51
Min.: 1
Mult.: 1
: 2,500
CIP-51 8051 16 kB 2.25 kB QFN-20 50 MHz 12 bit 13 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C EFM8UB Reel, Cut Tape, MouseReel
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
93,467Expected 08/01/2027
Cut Tape
$1.60
$1.17
$1.06
$0.943
Reel
$0.788
Min.: 1
Mult.: 1
: 2,500
CIP-51 8051 16 kB 2.3 kB QFN-20 50 MHz 12 bit 16 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C EFM8BB2 Reel, Cut Tape, MouseReel

Silicon Labs 8-bit Microcontrollers - MCU 8051 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU
23,750On Order
$3.96
$3.20
$2.81
$2.67
Min.: 1
Mult.: 1
CIP-51 8051 64 kB 4.25 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 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU
2,519Expected 17/11/2026
$1.20
$0.869
$0.787
$0.695
Min.: 1
Mult.: 1
CIP-51 8051 8 kB 512 B QFN-20 25 MHz 12 bit 16 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C EFM8BB1 Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU
12,600On Order
$1.35
$0.978
$0.885
$0.782
Min.: 1
Mult.: 1
CIP-51 8051 8 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 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
1,498Expected 01/01/2027
Cut Tape
$2.48
$2.10
$1.65
$1.44
Reel
$1.20
Min.: 1
Mult.: 1
: 1,500
CIP-51 8051 32 kB 4.25 kB QFN-24 25 MHz 10 bit 16 I/O 1.8 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C EFM8SB Reel, Cut Tape

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU
3,017Expected 27/11/2026
$1.24
$1.04
$0.836
$0.769
Min.: 1
Mult.: 1
CIP-51 8051 8 kB 512 B SOIC-16 25 MHz 12 bit 13 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C EFM8BB1 Tube
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 29 GPIO BB5 8-bit MCU
6,000On Order
$0.96
$0.67
$0.601
$0.525
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
Microchip Technology 8-bit Microcontrollers - MCU 8051 4K FLASH 2.7 TO 5.5V 12MHZ 4V-5.5V
552On Order
$1.50
$1.38
$1.24
Min.: 1
Mult.: 1
8051 4 kB 128 B SOIC-20 12 MHz No ADC 15 I/O 2.7 V 6 V SMD/SMT 8 bit - 40 C + 85 C 89C Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU
1,817Expected 03/05/2027
$2.70
$2.44
$2.18
$1.96
Min.: 1
Mult.: 1
CIP-51 8051 16 kB 1.25 kB QFN-32 72 MHz 10 bit/12 bit/14 bit 29 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 1In Stock
$2.25
$1.66
$1.51
$1.35
Min.: 1
Mult.: 1
CIP-51 8051 16 kB 2.3 kB QFN-28 50 MHz 12 bit 22 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 125 C EFM8BB2 Tube
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU
197Expected 18/12/2026
$1.39
$1.10
$0.973
$0.843
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 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU
3,550On Order
$1.90
$1.48
$1.33
$1.18
Min.: 1
Mult.: 1
CIP-51 8051 8 kB 512 B CSP-16 25 MHz 12 bit 13 I/O 1.8 V 3.6 V SMD/SMT 8 bit - 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
200Expected 04/12/2026
$1.41
$1.10
$0.976
$0.877
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 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
179Expected 13/11/2026
$1.14
$0.853
$0.763
$0.684
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
198Expected 01/01/2027
$1.17
$0.847
$0.762
$0.67
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 16 kB flash 2 kB RAM 8-bit Universal Bee MCU
526Expected 08/01/2027
$2.63
$1.95
$1.78
$1.59
Min.: 1
Mult.: 1
CIP-51 8051 16 kB 2.25 kB QFN-28 50 MHz 12 bit 22 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C EFM8UB Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 16 kB 8-bit MCU 3,007In Stock
Cut Tape
$5.00
$3.81
$3.51
$3.18
Reel
$2.49
Min.: 1
Mult.: 1
: 2,500
8051 16 kB 1.54 kB QFN-28 25 MHz 15 I/O 2.7 V 5.25 V SMD/SMT 8 bit - 40 C + 85 C C8051F327 Reel, Cut Tape
Microchip Technology 8-bit Microcontrollers - MCU Single-Cycle 8051 8K ISP Flash MCU Non-Stocked Lead-Time 13 Weeks
$1.31
Min.: 720
Mult.: 360
8051 8 kB 256 B VQFN-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 25 MHz 16 kB LFO 8-bit MCU 2,590In Stock
$11.28
$9.05
$8.03
$7.62
Min.: 1
Mult.: 1
8051 16 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 C8051F336 Tube
Microchip Technology 8-bit Microcontrollers - MCU Single Cycle 8051 4K ISP FL Non-Stocked Lead-Time 13 Weeks
$1.31
Min.: 720
Mult.: 360
8051 4 kB 256 B VQFN-44 20 MHz No ADC 36 I/O 2.4 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C Tray