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
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Core
Data Bus Width
Maximum Clock Frequency
Program Memory Size
Data RAM Size
ADC Resolution
Number of I/Os
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Supply Voltage - Max
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Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Busy Bee MCU
Datasheet
15,601In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-20 CIP-51 8051 8 bit 25 MHz 2 kB 256 B 12 bit 16 I/O 2.2 V 3.6 V + 85 C Reel, Cut Tape, MouseReel

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU
Datasheet
11,606In Stock
73,500Expected 10/2/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-20 CIP-51 8051 8 bit 25 MHz 8 kB 512 B 12 bit 16 I/O 2.2 V 3.6 V + 85 C Reel, Cut Tape, MouseReel

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Sleepy Bee MCU
Datasheet
3,284In Stock
6,300Expected 10/23/2026
Min.: 1
Mult.: 1

SMD/SMT QFN-20 CIP-51 8051 8 bit 25 MHz 2 kB 256 B 12 bit 16 I/O 1.8 V 3.6 V + 85 C Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Sleepy Bee MCU
Datasheet
3,538In Stock
16,500Expected 12/1/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-20 CIP-51 8051 8 bit 25 MHz 2 kB 256 B 12 bit 16 I/O 1.8 V 3.6 V + 85 C Reel, Cut Tape, MouseReel

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU
Datasheet
4,129In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-20 CIP-51 8051 8 bit 25 MHz 8 kB 512 B 12 bit 16 I/O 1.8 V 3.6 V + 85 C Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU
Datasheet
7,408In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-20 CIP-51 8051 8 bit 25 MHz 8 kB 512 B 12 bit 16 I/O 1.8 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU
Datasheet
3,031In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD/SMT CIP-51 8051 8 bit 25 MHz 8 kB 512 B 12 bit 17 I/O 1.8 V 3.6 V + 85 C Reel, Cut Tape, MouseReel
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 8-bit MCU
Datasheet
750In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 8051 8 bit 48 MHz 64 kB 4.25 kB 10 bit 25 I/O 2.7 V 5.25 V + 85 C Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 16 kB 8-bit MCU
Datasheet
1,322In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-24 8051 8 bit 50 MHz 16 kB 1 kB 10 bit 21 I/O 1.8 V 3.6 V + 105 C Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 16 kB LFO 8-bit MCU
Datasheet
1,210In Stock
1,911Expected 11/2/2026
Min.: 1
Mult.: 1

SMD/SMT QFN-20 8051 8 bit 50 MHz 16 kB 1 kB 10 bit 17 I/O 1.8 V 3.6 V + 105 C Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU
Datasheet
548In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 8051 8 bit 50 MHz 64 kB 4.25 kB 12 bit 25 I/O 1.8 V 5.25 V + 125 C AEC-Q100 Tube
Silicon Labs 8-bit Microcontrollers - MCU 50 MIPS, 64 kB, 4 kB, CAN2.0, LIN 2.1, SPI, UART, I2C, QFN32
Datasheet
296In Stock
Min.: 1
Mult.: 1
: 1,500

8051 8 bit 1.8 V 5.25 V Reel, Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V CAN LIN 8-bit MCU
Datasheet
323In Stock
1,911Expected 10/2/2026
Min.: 1
Mult.: 1

SMD/SMT QFN-24 8051 8 bit 50 MHz 32 kB 2.25 kB 12 bit 18 I/O 1.8 V 5.25 V + 125 C AEC-Q100 Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 32 kB 5 V 8-bit MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1
Mult.: 1

SMD/SMT QFN-24 8051 8 bit 50 MHz 32 kB 2.25 kB 12 bit 18 I/O 1.8 V 5.25 V + 125 C AEC-Q100 Tube
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M33 32-bit 76 MHz 512 kB AES MCU
Datasheet
3,213In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2,500

SMD/SMT QFN-40 ARM Cortex M33 32 bit 76.8 MHz 512 kB 32 kB 12 bit 26 I/O 3.8 V 1.71 V + 125 C Reel, Cut Tape, MouseReel
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M33 32-bit 76 MHz 128 kB AES MCU
Datasheet
2,286In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 ARM Cortex M33 32 bit 76.8 MHz 128 kB 32 kB 12 bit, 16 bit 18 I/O 1.71 V 3.8 V + 125 C Tray
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M33 32-bit 76 MHz 128 kB AES MCU
Datasheet
4,880In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-40 ARM Cortex M33 32 bit 76.8 MHz 128 kB 32 kB 12 bit, 16 bit 26 I/O 1.71 V 3.8 V + 125 C Tray
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M33 32-bit 76 MHz 256 kB AES MCU
Datasheet
2,720In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 ARM Cortex M33 32 bit 76.8 MHz 256 kB 32 kB 12 bit 18 I/O 1.71 V 3.8 V + 125 C Tray
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M33 32-bit 76 MHz 256 kB AES MCU
Datasheet
1,994In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-40 ARM Cortex M33 32 bit 76.8 MHz 256 kB 32 kB 12 bit, 16 bit 26 I/O 1.71 V 3.8 V + 125 C Tray
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M33 32-bit 76 MHz 512 kB AES MCU
Datasheet
3,531In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 ARM Cortex M33 32 bit 76.8 MHz 512 kB 32 kB 12 bit 18 I/O 1.71 V 3.8 V + 125 C Tray
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M33 32-bit 76 MHz 512 kB AES MCU
Datasheet
4,544In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-40 ARM Cortex M33 32 bit 76.8 MHz 512 kB 32 kB 12 bit, 16 bit 26 I/O 1.71 V 3.8 V + 125 C Tray
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M33 32-bit 76 MHz 256 kB AES MCU
Datasheet
3,771In Stock
Min.: 1
Mult.: 1
: 2,500

SMD/SMT QFN-40 ARM Cortex M33 32 bit 76.8 MHz 256 kB 32 kB 12 bit 26 I/O 3 V 3 V + 125 C Reel, Cut Tape
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M33 32-bit 76 MHz 64 kB AES MCU
Datasheet
7,528In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 ARM Cortex M33 32 bit 76.8 MHz 64 kB 32 kB 12 bit, 16 bit 18 I/O 1.71 V 3.8 V + 125 C Tray

Silicon Labs ARM Microcontrollers - MCU Tiny Gecko MCU IC
Datasheet
1,579In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

SMD/SMT QFN-32 ARM Cortex M3 32 bit 32 MHz 32 kB 4 kB 12 bit 24 I/O 1.98 V 3.8 V + 85 C Reel, Cut Tape, MouseReel

Silicon Labs ARM Microcontrollers - MCU ARM Cortex -M0+ Zero Gecko Microcontroller IC 32-Bit 24MHz 32KB Flash QFN24
Datasheet
1,653In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-24 ARM Cortex M0+ 32 bit 24 MHz 32 kB 4 kB 12 bit 17 I/O 1.98 V 3.8 V + 85 C Tray