Silicon Labs 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 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
Datasheet
1.175In 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 16 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
Datasheet
446In 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 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
Datasheet
920In Stock
Min.: 1
Mult.: 1

CIP-51 8051 32 kB 4.25 kB QFP-32 25 MHz 10 bit 24 I/O 1.8 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C EFM8SB Tray
Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 64 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
Datasheet
739In Stock
Min.: 1
Mult.: 1

CIP-51 8051 64 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 Tray

Silicon Labs 8-bit Microcontrollers - MCU 8051 48 MHz 32 kB flash 2 kB RAM 8-bit Universal Bee MCU
Datasheet
281In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 500

CIP-51 8051 32 kB 2.25 kB QFP-48 48 MHz 10 bit 40 I/O 3.6 V 2.2 V SMD/SMT 8 bit - 40 C + 85 C EFM8UB2 Reel, Cut Tape, MouseReel

Silicon Labs 8-bit Microcontrollers - MCU 8051 48 MHz 64 kB flash 4 kB RAM 8-bit Universal Bee MCU
Datasheet
350In 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
Datasheet
281In 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 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU
Datasheet
48In Stock
Min.: 1
Mult.: 1

16 kB 512 B QFN-12 50 MHz 12 bit 9 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 125 C BB50 Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU
Datasheet
109In Stock
Min.: 1
Mult.: 1

16 kB 512 B QFN-16 50 MHz 12 bit 12 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 125 C BB50 Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU
Datasheet
141In Stock
Min.: 1
Mult.: 1

4 kB 512 B QFN-12 50 MHz 12 bit 9 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 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU
Datasheet
180In 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 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU
Datasheet
147In 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 25 MIPS, 8 kB, 256, SPI, UART, LIN 2.1, QFN20
Datasheet
382In Stock
Min.: 1
Mult.: 1

8051 8 kB 256 B QFN-20 25 MHz 12 bit 16 I/O 1.8 V 5.25 V SMD/SMT 8 bit - 40 C + 125 C C8051F530A Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 32 kB 8-bit MCU
Datasheet
27In Stock
800Expected 4/20/2026
Min.: 1
Mult.: 1

8051 32 kB 2.25 kB TQFP-64 25 MHz 12 bit 32 I/O 2.7 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C C8051F005 Tray
Silicon Labs 8-bit Microcontrollers - MCU 64KB,16ADC,100Pin MCU
Datasheet
2In Stock
Min.: 1
Mult.: 1

8051 64 kB 4.25 kB TQFP-100 25 MHz 16 bit 59 I/O 2.7 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C C8051F064 Tray

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 2 kB LFO 8-bit MCU
Datasheet
47In Stock
Min.: 1
Mult.: 1

8051 2 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 C8051F334 Tube

Silicon Labs 8-bit Microcontrollers - MCU 8kB/512B RAM, ADC, QFN20
Datasheet
93In Stock
Min.: 1
Mult.: 1

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 C8051F850 Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
Datasheet
1.610In Stock
Min.: 1
Mult.: 1

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 Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
Datasheet
1.286In Stock
1.500Expected 2/24/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 1.500

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 + 85 C EFM8BB2 Reel, Cut Tape, MouseReel
Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 2 kB RAM 8-bit Universal Bee MCU
Datasheet
475In 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 25 MHz 8 kB flash 2 kB RAM 8-bit Universal Bee MCU
Datasheet
777In Stock
2.520Expected 3/3/2026
Min.: 1
Mult.: 1

CIP-51 8051 8 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 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
Datasheet
500In 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
156In 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
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
148In 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