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
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 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU
Datasheet
6In Stock
Min.: 1
Mult.: 1

SMD/SMT TSSOP-20 16 kB 16 I/O 1.28 kB 1.8 V 5.5 V - 40 C + 85 C Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 29 GPIO BB5 8-bit MCU
Datasheet
6In Stock
600On Order
Min.: 1
Mult.: 1

SMD/SMT QFN-32 16 kB 16 I/O 1.28 kB 1.8 V 5.5 V - 40 C + 85 C Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU
Datasheet
402In Stock
Min.: 1
Mult.: 1

SMD/SMT TSSOP-20 16 kB 16 I/O 1.28 kB 1.8 V 5.5 V - 40 C + 85 C Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 25 GPIO BB5 8-bit MCU
Datasheet
288In Stock
Min.: 1
Mult.: 1

SMD/SMT TSSOP-28 16 kB 16 I/O 1.28 kB 1.8 V 5.5 V - 40 C + 85 C Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU
Datasheet
294In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-20 16 kB 16 I/O 1.28 kB 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
82In Stock
2,520Expected 9/4/2026
Min.: 1
Mult.: 1

SMD/SMT QFN-20 CIP-51 8051 16 kB 8 bit 12 bit 50 MHz 16 I/O 2.25 kB 2.2 V 3.6 V - 40 C + 125 C AEC-Q100 Tube

Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M0+ 32-bit 25 MHz 64 kB MCU
Datasheet
17In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 ARM Cortex M0+ 64 kB 32 bit 12 bit 25 MHz 24 I/O 8 kB 1.98 V 3.8 V - 40 C + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M0+ 32-bit 25 MHz 64 kB MCU
Datasheet
71In Stock
Min.: 1
Mult.: 1
: 1,000

SMD/SMT TQFP-48 ARM Cortex M0+ 64 kB 32 bit 12 bit 25 MHz 35 I/O 8 kB 1.98 V 3.8 V - 40 C + 85 C Reel, Cut Tape
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M0+ 32-bit 25 MHz 64 kB USB MCU
Datasheet
8In Stock
1,000Expected 10/27/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,000

SMD/SMT TQFP-48 ARM Cortex M0+ 64 kB 32 bit 12 bit 25 MHz 35 I/O 8 kB 1.98 V 3.8 V - 40 C + 85 C 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
134In Stock
Min.: 1
Mult.: 1

SMD/SMT QFP-32 CIP-51 8051 16 kB 8 bit 10 bit/12 bit/14 bit 72 MHz 28 I/O 1.25 kB 2.2 V 3.6 V - 40 C + 105 C 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

SMD/SMT QFP-32 CIP-51 8051 16 kB 8 bit 10 bit/12 bit/14 bit 72 MHz 28 I/O 1.25 kB 2.2 V 3.6 V - 40 C + 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
237In Stock
500Expected 1/29/2027
Min.: 1
Mult.: 1
: 500

SMD/SMT QFP-32 CIP-51 8051 64 kB 8 bit 10 bit/12 bit/14 bit 72 MHz 28 I/O 4.25 kB 2.2 V 3.6 V - 40 C + 105 C Reel, Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU
Datasheet
279In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-32 CIP-51 8051 64 kB 8 bit 10 bit/12 bit/14 bit 72 MHz 29 I/O 4.25 kB 2.2 V 3.6 V - 40 C + 105 C Tray

Silicon Labs 8-bit Microcontrollers - MCU 8kB/768B RAM, 10b ADC, 10b DAC, QFN20 OTP available (T630-GM)
Datasheet
24In Stock
1,500Expected 10/23/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-20 8051 8 kB 8 bit 10 bit 25 MHz 17 I/O 768 B 2.7 V 3.6 V - 40 C + 85 C Reel, Cut Tape, MouseReel
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M4 32-bit 72 MHz 512 kB LCD MCU
Datasheet
8In Stock
Min.: 1
Mult.: 1

SMD/SMT QFP-100 ARM Cortex M4 512 kB 32 bit 2 x 12 bit 72 MHz 86 I/O 192 kB 1.8 V 3.8 V - 40 C + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M4 32-bit 72 MHz 512 kB USB LCD MCU
Datasheet
38In Stock
Min.: 1
Mult.: 1

SMD/SMT QFP-100 ARM Cortex M4 512 kB 32 bit 2 x 12 bit 72 MHz 83 I/O 192 kB 1.8 V 3.8 V - 40 C + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M4 32-bit 72 MHz 1024 kB USB LCD MCU
Datasheet
8In Stock
Min.: 1
Mult.: 1

SMD/SMT QFP-64 ARM Cortex M4 1.02 MB 32 bit 2 x 12 bit 72 MHz 48 I/O 192 kB 1.8 V 3.8 V - 40 C + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU 128k Flash, 16k RAM, AES
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M3 128 kB 32 bit 12 bit 32 MHz 86 I/O 16 kB 1.98 V 3.8 V - 40 C + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU 128k Flash, 16k RAM, 4x22 LCD, AES
Datasheet
32In Stock
Min.: 1
Mult.: 1

SMD/SMT TQFP-64 ARM Cortex M3 128 kB 32 bit 12 bit 32 MHz 53 I/O 16 kB 1.98 V 3.8 V - 40 C + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU 1024k Flash, 128k RAM, AES
Datasheet
56In Stock
Min.: 1
Mult.: 1

SMD/SMT BGA-112 ARM Cortex M3 1.02 MB 32 bit 12 bit 48 MHz 90 I/O 128 kB 1.98 V 3.8 V - 40 C + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU 512k Flash, 128k RAM, AES
Datasheet
4In Stock
Min.: 1
Mult.: 1

SMD/SMT BGA-112 ARM Cortex M3 512 kB 32 bit 12 bit 48 MHz 90 I/O 128 kB 1.98 V 3.8 V - 40 C + 85 C Tray

Silicon Labs ARM Microcontrollers - MCU 1024k Flash, 128k RAM, USB, AES
Datasheet
3In Stock
Min.: 1
Mult.: 1

SMD/SMT QFN-64 ARM Cortex M3 1.02 MB 32 bit 12 bit 48 MHz 52 I/O 128 kB 1.98 V 3.8 V - 40 C + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU 512k Flash, 128k RAM, USB, AES
Datasheet
35In Stock
Min.: 1
Mult.: 1

SMD/SMT LQFP-100 ARM Cortex M3 512 kB 32 bit 12 bit 48 MHz 81 I/O 128 kB 1.98 V 3.8 V - 40 C + 85 C Tray
Silicon Labs ARM Microcontrollers - MCU ARM Cortex-M4 32-bit 72 MHz 1024 kB USB LCD MCU
Datasheet
56In Stock
Min.: 1
Mult.: 1
: 1,000

SMD/SMT QFP-100 ARM Cortex M4 1 MB 32 bit 12 bit 72 MHz 81 I/O 192 kB 1.8 V 3.8 V - 40 C + 85 C Reel, Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 8 kB 8-bit MCU
Datasheet
103In Stock
Min.: 1
Mult.: 1
: 1,500

SMD/SMT QFN-28 8051 8 kB 8 bit 16 bit 50 MHz 17 I/O 768 B 2.7 V 3.6 V - 40 C + 85 C Reel, Cut Tape