Silicon Labs Microcontrollers - MCU

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Description Datasheet Availability Pricing (JPY) Filter the results in the table by unit price based on your quantity.
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
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M4 32-bit 72 MHz 2048 kB USB LCD MCU
Datasheet
218In Stock
Min.: 1
Mult.: 1

SMD/SMT BGA-120 ARM Cortex M4 32 bit 72 MHz 2.05 MB 512 kB 12 bit 95 I/O 1.8 V 3.8 V + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M4 32-bit 72 MHz 2048 kB USB LCD MCU
Datasheet
634In Stock
1,300Expected 1/15/2027
Min.: 1
Mult.: 1

SMD/SMT BGA-192 ARM Cortex M4 32 bit 72 MHz 2.05 MB 512 kB 12 bit 144 I/O 1.8 V 3.8 V + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M4 32-bit 72 MHz 2048 kB USB LCD MCU
Datasheet
779In Stock
Min.: 1
Mult.: 1

SMD/SMT QFP-64 ARM Cortex M4 32 bit 72 MHz 2.05 MB 512 kB 12 bit 47 I/O 1.8 V 3.8 V + 85 C Tray
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
Datasheet
1,498In Stock
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-20 CIP-51 8051 8 bit 50 MHz 16 kB 2.25 kB 12 bit 16 I/O 2.2 V 3.6 V + 125 C AEC-Q100 Reel, Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 16 kB 8-bit MCU
Datasheet
555In Stock
3,000Expected 11/27/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-28 8051 8 bit 25 MHz 16 kB 1.25 kB 10 bit 25 I/O 2.7 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
Silicon Labs 8-bit Microcontrollers - MCU USB-Flash-16k-ADC-QFN28 OTP available (T321-GM)
Datasheet
188In Stock
1,533Expected 11/27/2026
Min.: 1
Mult.: 1

SMD/SMT QFN-28 CIP-51 8051 8 bit 25 MHz 16 kB 2.3 kB 10 bit 21 I/O 2.7 V 3.6 V + 85 C Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 8-bit MCU
Datasheet
1,057In Stock
1,533Expected 11/20/2026
Min.: 1
Mult.: 1

SMD/SMT QFN-28 8051 8 bit 50 MHz 32 kB 2.31 kB 12 bit 20 I/O 2 V 5.25 V + 85 C Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 8-bit MCU
Datasheet
487In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-28 8051 8 bit 50 MHz 32 kB 2.25 kB 12 bit 20 I/O 2 V 5.25 V + 85 C 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
Datasheet
4,177In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

SMD/SMT QFN-32 CIP-51 8051 8 bit 50 MHz 16 kB 2.3 kB 10 bit, 12 bit 29 I/O 2.2 V 3.6 V + 85 C Reel, Cut Tape, MouseReel

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 32 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
Datasheet
1,520In Stock
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-24 CIP-51 8051 8 bit 50 MHz 32 kB 2.3 kB 10 bit, 12 bit 20 I/O 2.2 V 3.6 V + 125 C Reel, Cut Tape

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU
Datasheet
2,120In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-24 CIP-51 8051 8 bit 50 MHz 64 kB 4.35 kB 10 bit, 12 bit 20 I/O 2.2 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU
Datasheet
1,527In Stock
Min.: 1
Mult.: 1
: 2,500

SMD/SMT QFN-32 CIP-51 8051 8 bit 50 MHz 64 kB 4.35 kB 10 bit, 12 bit 29 I/O 2.2 V 3.6 V + 85 C Reel, Cut Tape

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU
Datasheet
5,987In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-24 CIP-51 8051 8 bit 50 MHz 64 kB 4.35 kB 10 bit, 12 bit 20 I/O 2.2 V 3.6 V + 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
995In Stock
1,500Expected 11/30/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-24 CIP-51 8051 8 bit 50 MHz 64 kB 4.35 kB 10 bit, 12 bit 20 I/O 2.2 V 3.6 V + 125 C Reel, Cut Tape, MouseReel
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU
Datasheet
1,309In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 CIP-51 8051 8 bit 50 MHz 64 kB 4.35 kB 10 bit, 12 bit 29 I/O 2.2 V 3.6 V + 125 C Tray
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M0+ 48 MHz 128 kB flash 32 kB RAM MCU
Datasheet
860In Stock
Min.: 1
Mult.: 1
: 1,000

SMD/SMT QFP-48 ARM Cortex M0+ 32 bit 48 MHz 128 kB 32 kB 12 bit 37 I/O 1.8 V 3.8 V + 85 C Reel, Cut Tape
Silicon Labs ARM Microcontrollers - MCU Tiny Gecko MCU IC
Datasheet
3,138In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-48 ARM Cortex M3 32 bit 32 MHz 32 kB 4 kB 12 bit 37 I/O 1.98 V 3.8 V + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M0+ 48 MHz 64 kB flash 32 kB RAM MCU
Datasheet
1,021In Stock
Min.: 1
Mult.: 1

SMD/SMT QFP-48 ARM Cortex M0+ 32 bit 48 MHz 64 kB 32 kB 12 bit 37 I/O 1.8 V 3.8 V + 85 C Tray
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
12,398In Stock
Min.: 1
Mult.: 1
: 2,500
SMD/SMT QFN-20 16 kB 1.28 kB 16 I/O 1.8 V 5.5 V + 85 C Reel, Cut Tape

Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M0+ 32-bit 25 MHz 64 kB MCU
Datasheet
1,917In Stock
Min.: 1
Mult.: 1
: 3,000

SMD/SMT QFN-32 ARM Cortex M0+ 32 bit 25 MHz 64 kB 8 kB 12 bit 22 I/O 1.98 V 3.8 V + 85 C 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
980In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-24 CIP-51 8051 8 bit 72 MHz 32 kB 2.25 kB 10 bit/12 bit/14 bit 20 I/O 2.2 V 3.6 V + 105 C 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
4,089In Stock
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-24 CIP-51 8051 8 bit 72 MHz 64 kB 4.25 kB 10 bit/12 bit/14 bit 20 I/O 2.2 V 3.6 V + 105 C 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

SMD/SMT QFN-32 CIP-51 8051 8 bit 72 MHz 64 kB 4.25 kB 10 bit/12 bit/14 bit 29 I/O 2.2 V 3.6 V + 105 C Tray
Silicon Labs 8-bit Microcontrollers - MCU 8051 75 MHz 64 kB flash 4.25 kB RAM 8-bit Laser Bee MCU
Datasheet
4,042In Stock
Min.: 1
Mult.: 1
: 2,500

SMD/SMT QFN-32 CIP-51 8051 8 bit 72 MHz 64 kB 4.25 kB 10 bit/12 bit/14 bit 29 I/O 2.2 V 3.6 V + 105 C 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
4,526In Stock
6,250Expected 3/12/2027
Min.: 1
Mult.: 1

SMD/SMT QFP-32 CIP-51 8051 8 bit 72 MHz 64 kB 4.25 kB 10 bit/12 bit/14 bit 28 I/O 2.2 V 3.6 V + 105 C Tray