EFM8 8-bit Microcontrollers - MCU

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Qty. RoHS ECAD Model Core
Program Memory Size
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Supply Voltage - Max
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Silicon Labs 8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU
Datasheet
980In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

CIP-51 8051 32 kB 2.25 kB QFN-24 72 MHz 10 bit/12 bit/14 bit 20 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 105 C EFM8LB1 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
Datasheet
4,091In Stock
Min.: 1
Mult.: 1
: 1,500

CIP-51 8051 64 kB 4.25 kB QFN-24 72 MHz 10 bit/12 bit/14 bit 20 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 105 C EFM8LB1 Reel, Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 8051 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU
Datasheet
2,603In Stock
Min.: 1
Mult.: 1

CIP-51 8051 64 kB 4.25 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 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU
Datasheet
4,062In Stock
Min.: 1
Mult.: 1
: 2,500

CIP-51 8051 64 kB 4.25 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 Reel, Cut Tape

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
Datasheet
364In Stock
Min.: 1
Mult.: 1

CIP-51 8051 16 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 Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 48 MHz 64 kB flash 4 kB RAM 8-bit Universal Bee MCU
Datasheet
163In Stock
Min.: 1
Mult.: 1
: 1,500

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 Reel, Cut Tape

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 16 kB flash 2 kB RAM 8-bit Universal Bee MCU
Datasheet
122In Stock
Min.: 1
Mult.: 1

CIP-51 8051 16 kB 2.25 kB QSOP-24 50 MHz 12 bit 17 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 flash 2 kB RAM 8-bit Universal Bee MCU
Datasheet
281In Stock
Min.: 1
Mult.: 1

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 Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU
Datasheet
473In Stock
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 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU
Datasheet
134In 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 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
Datasheet
279In Stock
Min.: 1
Mult.: 1

CIP-51 8051 64 kB 4.25 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 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
Datasheet
81In Stock
Min.: 1
Mult.: 1
: 1,500

CIP-51 8051 32 kB 4.25 kB 25 MHz 10 bit 24 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 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
Datasheet
787In Stock
Min.: 1
Mult.: 1

CIP-51 8051 32 kB 4.25 kB QFN-32 25 MHz 10 bit 24 I/O 1.8 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C EFM8SB Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 48 MHz 64 kB flash 4 kB RAM 8-bit Universal Bee MCU
Datasheet
63In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 500

CIP-51 8051 64 kB 4.25 kB QFP-48 48 MHz 10 bit 40 I/O 2.65 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C EFM8UB2 Reel, Cut Tape, MouseReel
Silicon Labs 8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU
Datasheet
53In Stock
Min.: 1
Mult.: 1

CIP-51 8051 16 kB 1.25 kB QSOP-24 72 MHz 10 bit/12 bit/14 bit 21 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 105 C EFM8LB1 Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 75 MHz 16 kB flash 1.25 kB RAM 8-bit Laser Bee MCU
Datasheet
52In Stock
Min.: 1
Mult.: 1

CIP-51 8051 16 kB 1.25 kB QSOP-24 72 MHz 10 bit/12 bit/14 bit 21 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 105 C EFM8LB1 Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU
Datasheet
12In Stock
Min.: 1
Mult.: 1
: 1,500

CIP-51 8051 32 kB 2.25 kB QFN-24 72 MHz 10 bit/12 bit/14 bit 20 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 105 C EFM8LB1 Reel, Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU
Datasheet
257In Stock
Min.: 1
Mult.: 1

CIP-51 8051 32 kB 2.25 kB QFN-24 72 MHz 10 bit/12 bit/14 bit 20 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 105 C EFM8LB1 Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 75 MHz 32 kB flash 2.25 kB RAM 8-bit Laser Bee MCU
Datasheet
1,043Expected 10/16/2026
Min.: 1
Mult.: 1

CIP-51 8051 32 kB 2.25 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 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU
Datasheet
5,000Expected 8/27/2026
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 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU
Datasheet
500Expected 10/23/2026
Min.: 1
Mult.: 1
: 500

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 Reel, Cut Tape

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1,500
Mult.: 1,500
: 1,500

CIP-51 8051 16 kB 4.25 kB 25 MHz 10 bit 16 I/O 1.8 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C EFM8SB Reel

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1
Mult.: 1

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 Tube