Silicon Labs Microcontrollers - MCU

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Description Datasheet Availability Pricing (TWD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS Mounting Style
Package / Case
Core
Program Memory Size
Data Bus Width
ADC Resolution
Maximum Clock Frequency
Number of I/Os
Data RAM Size
Supply Voltage - Min
Supply Voltage - Max
Minimum Operating Temperature
Maximum Operating Temperature
Qualification
Packaging
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
200In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-12 16 kB 8 bit 12 bit 50 MHz 9 I/O 512 B 1.8 V 5.5 V - 40 C + 125 C 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
71In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-16 16 kB 8 bit 12 bit 50 MHz 12 I/O 512 B 1.8 V 5.5 V - 40 C + 125 C 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
356In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-16 4 kB 8 bit 12 bit 50 MHz 12 I/O 512 B 1.8 V 5.5 V - 40 C + 85 C Cut Tape

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
Datasheet
3,126In Stock
Min.: 1
Mult.: 1

SMD/SMT QSOP-24 CIP-51 8051 16 kB 8 bit 12 bit 50 MHz 21 I/O 2.3 kB 2.2 V 3.6 V - 40 C + 125 C Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU
Datasheet
152In Stock
Min.: 1
Mult.: 1

SMD/SMT QSOP-24 CIP-51 8051 8 kB 8 bit 12 bit 25 MHz 17 I/O 512 B 1.8 V 3.6 V - 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
Datasheet
122In Stock
Min.: 1
Mult.: 1

SMD/SMT QSOP-24 CIP-51 8051 16 kB 8 bit 12 bit 50 MHz 17 I/O 2.25 kB 2.2 V 3.6 V - 40 C + 85 C Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 32 kB 8-bit MCU
Datasheet
113In Stock
800Expected 1/8/2027
Min.: 1
Mult.: 1

SMD/SMT TQFP-64 8051 32 kB 8 bit 12 bit 25 MHz 32 I/O 2.25 kB 2.7 V 3.6 V - 40 C + 85 C Tray

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 32 kB 8-bit MCU
Datasheet
234In Stock
Min.: 1
Mult.: 1
: 500

SMD/SMT TQFP-64 8051 32 kB 8 bit 12 bit 25 MHz 32 I/O 2.25 kB 2.7 V 3.6 V - 40 C + 85 C Reel, Cut Tape

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 64 kB 8-bit MCU
Datasheet
133In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-64 8051 64 kB 8 bit 8 bit, 12 bit 25 MHz 32 I/O 4.35 kB 2.7 V 3.6 V - 40 C + 85 C Tray

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 64 kB 8-bit MCU
Datasheet
379In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 500

SMD/SMT TQFP-64 8051 64 kB 8 bit 8 bit, 12 bit 25 MHz 32 I/O 4.35 kB 2.7 V 3.6 V - 40 C + 85 C Reel, Cut Tape, MouseReel
Silicon Labs 8-bit Microcontrollers - MCU 64KB,16ADC,100Pin MCU
Datasheet
115In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 250

SMD/SMT TQFP-100 8051 64 kB 8 bit 16 bit 25 MHz 59 I/O 4.25 kB 2.7 V 3.6 V - 40 C + 85 C Reel, Cut Tape, MouseReel
Silicon Labs 8-bit Microcontrollers - MCU 50MIPS,128KB,12ADC,100Pin MCU
Datasheet
74In Stock
1,350Expected 12/4/2026
Min.: 1
Mult.: 1

SMD/SMT TQFP-100 8051 128 kB 8 bit 8 bit, 12 bit 50 MHz 64 I/O 8.25 kB 2.7 V 3.6 V - 40 C + 85 C Tray
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V CAN LIN 8-bit MCU
Datasheet
181In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-48 8051 64 kB 8 bit 12 bit 50 MHz 40 I/O 4.25 kB 1.8 V 5.25 V - 40 C + 125 C AEC-Q100 Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 8 kB 5 V LIN 8-bit MCU
Datasheet
793In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-20 8051 8 kB 8 bit 12 bit 25 MHz 16 I/O 256 B 2 V 5.25 V - 40 C + 125 C AEC-Q100 Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V CAN LIN 8-bit MCU
Datasheet
397In Stock
2,500Expected 1/29/2027
Min.: 1
Mult.: 1

SMD/SMT PQFP-48 8051 128 kB 8 bit 12 bit 50 MHz 40 I/O 8.25 kB 1.8 V 5.25 V - 40 C + 125 C AEC-Q100 Tray

Silicon Labs 8-bit Microcontrollers - MCU 32kB/4kB RAM, 10b ADC, DC-DC, 0.9V, QFN32
Datasheet
63In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 8051 32 kB 8 bit 10 bit 25 MHz 24 I/O 4.25 kB 900 mV 3.6 V - 40 C + 85 C Tube

Silicon Labs 8-bit Microcontrollers - MCU 32kB/4kB RAM, 10b ADC, DC-DC, 0.9V, QFN32
Datasheet
1,318In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-32 8051 32 kB 8 bit 10 bit 25 MHz 24 I/O 4.25 kB 900 mV 3.6 V - 40 C + 85 C Reel, Cut Tape, MouseReel

Silicon Labs 8-bit Microcontrollers - MCU 32kB/4kB RAM, 10bADC, DC-DC, 0.9V, QFN24
Datasheet
996In Stock
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-24 8051 32 kB 8 bit 10 bit 25 MHz 16 I/O 4.25 kB 900 mV 3.6 V - 40 C + 85 C Reel, Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 64kB/4kB RAM, 10b ADC, DC-DC, 0.9V, QFN32
Datasheet
1,244In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 8051 64 kB 8 bit 10 bit 25 MHz 24 I/O 4.25 kB 1.8 V 3.6 V - 40 C + 85 C Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
Datasheet
1,070In Stock
Min.: 1
Mult.: 1

SMD/SMT QFP-32 CIP-51 8051 16 kB 8 bit 10 bit, 12 bit 50 MHz 28 I/O 2.3 kB 2.2 V 3.6 V - 40 C + 85 C Tray
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU
Datasheet
1,358In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 CIP-51 8051 64 kB 8 bit 10 bit, 12 bit 50 MHz 29 I/O 4.35 kB 2.2 V 3.6 V - 40 C + 125 C Tube

Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M3 32-bit 40 MHz 128 kB MCU
Datasheet
1,102In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-48 ARM Cortex M3 128 kB 32 bit 12 bit 40 MHz 32 I/O 32 kB 1.85 V 3.8 V - 40 C + 85 C Tray

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 4 kB flash 0.5 kB RAM 8-bit Busy Bee MCU
Datasheet
244In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-20 CIP-51 8051 4 kB 8 bit 12 bit 25 MHz 16 I/O 512 B 2.2 V 3.6 V - 40 C + 125 C Tube


Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M4 32-bit 40 MHz 128 kB MCU
Datasheet
688In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-48 ARM Cortex M4 128 kB 32 bit 12 bit 40 MHz 32 I/O 32 kB 1.85 V 3.8 V - 40 C + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU Leopard Gecko MCU IC 256KB
Datasheet
106In Stock
Min.: 1
Mult.: 1

SMD/SMT BGA-112 ARM Cortex M3 256 kB 32 bit 12 bit 48 MHz 90 I/O 32 kB 1.98 V 3.8 V - 40 C + 85 C Tray