CIP-51 8051 Core Microcontrollers - MCU

Types of Microcontrollers - MCU
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Results: 218
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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
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Packaging

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

SMD/SMT QFN-28 CIP-51 8051 8 bit 50 MHz 16 kB 2.3 kB 12 bit 22 I/O 2.2 V 3.6 V + 125 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 498Expected 04/09/2026
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 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU
Datasheet
2 430Expected 28/08/2026
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 + 125 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
1 043Expected 16/10/2026
Min.: 1
Mult.: 1

SMD/SMT QFP-32 CIP-51 8051 8 bit 72 MHz 32 kB 2.25 kB 10 bit/12 bit/14 bit 28 I/O 2.2 V 3.6 V + 105 C Tray
Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 2 500
Mult.: 2 500
: 2 500

SMD/SMT SOIC-16 CIP-51 8051 8 bit 25 MHz 8 kB 512 B 12 bit 13 I/O 2.2 V 3.6 V + 125 C Reel

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 4 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1 500
Mult.: 1 500
: 1 500

SMD/SMT QFN-20 CIP-51 8051 8 bit 25 MHz 4 kB 512 B 12 bit 16 I/O 1.8 V 3.6 V + 85 C Reel

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 16 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1 500
Mult.: 1 500
: 1 500

SMD/SMT CIP-51 8051 8 bit 25 MHz 16 kB 4.25 kB 10 bit 16 I/O 1.8 V 3.6 V + 85 C Reel

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1
Mult.: 1

SMD/SMT QFN-24 CIP-51 8051 8 bit 25 MHz 32 kB 4.25 kB 10 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 Busy Bee MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1
Mult.: 1

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 + 125 C AEC-Q100 Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 2 kB Flash 0.25 kB RAM 8-bit Busy Bee MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
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 + 125 C AEC-Q100 Reel, Cut Tape

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 2 kB flash 0.25 kB RAM 8-bit Busy Bee MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
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 + 125 C Reel, Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1 500
Mult.: 1 500
: 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 + 125 C AEC-Q100 Reel

Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
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 + 125 C Reel, Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Sleepy Bee MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1 500
Mult.: 1 500
: 1 500

SMD/SMT QFN-24 CIP-51 8051 8 bit 25 MHz 8 kB 512 B 12 bit 17 I/O 1.8 V 3.6 V + 85 C AEC-Q100 Reel

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
Datasheet
Non-Stocked Lead-Time 31 Weeks
Min.: 1 500
Mult.: 1 500
: 1 500

SMD/SMT QFN-28 CIP-51 8051 8 bit 50 MHz 16 kB 2.3 kB 12 bit 22 I/O 2.2 V 3.6 V + 125 C Reel

Silicon Labs 8-bit Microcontrollers - MCU
Datasheet
Non-Stocked Lead-Time 20 Weeks
Min.: 1 911
Mult.: 1 911

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

Silicon Labs 8-bit Microcontrollers - MCU
Datasheet
Non-Stocked Lead-Time 20 Weeks
Min.: 1 500
Mult.: 1 500
: 1 500

SMD/SMT QFN-24 CIP-51 8051 8 bit 50 MHz 16 kB 2.25 kB 12 bit 17 I/O 2.2 V 3.6 V + 85 C Reel
Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 16 kB 8-bit MCU
Datasheet
Non-Stocked Lead-Time 25 Weeks
Min.: 1 911
Mult.: 1 911

SMD/SMT QFN-24 CIP-51 8051 8 bit 25 MHz 16 kB 1.28 kB 10 bit 21 I/O 2.7 V 3.6 V + 85 C Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 25 MHz 16 kB 8-bit MCU
Datasheet
Non-Stocked Lead-Time 25 Weeks
Min.: 1
Mult.: 1
: 1 500

SMD/SMT QFN-24 CIP-51 8051 8 bit 25 MHz 16 kB 1.28 kB 10 bit 21 I/O 2.7 V 3.6 V + 85 C Reel, Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU USB-Flash-16k-ADC-QFN28 OTP available (T321-GM)
Datasheet
Non-Stocked Lead-Time 24 Weeks
Min.: 1
Mult.: 1
: 1 500

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 Reel, Cut Tape

Silicon Labs 8-bit Microcontrollers - MCU
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

SMD/SMT QFN-20 CIP-51 8051 8 bit 25 MHz 4 kB 256 B 12 bit 16 I/O 2 V 5.25 V + 125 C AEC-Q100

Silicon Labs 8-bit Microcontrollers - MCU
Datasheet
Non-Stocked
Min.: 2 500
Mult.: 1

SMD/SMT QFN-20 CIP-51 8051 8 bit 25 MHz 4 kB 256 B 12 bit 16 I/O 2 V 5.25 V + 125 C AEC-Q100

Silicon Labs 8-bit Microcontrollers - MCU
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

SMD/SMT QFN-20 CIP-51 8051 8 bit 25 MHz 4 kB 256 B 12 bit 16 I/O 2 V 5.25 V + 125 C AEC-Q100

Silicon Labs 8-bit Microcontrollers - MCU
Datasheet
Non-Stocked
Min.: 2 500
Mult.: 1

SMD/SMT QFN-20 CIP-51 8051 8 bit 25 MHz 4 kB 256 B 12 bit 16 I/O 2 V 5.25 V + 125 C AEC-Q100

Silicon Labs 8-bit Microcontrollers - MCU
Datasheet
Non-Stocked
Min.: 1
Mult.: 1

SMD/SMT QFN-20 CIP-51 8051 8 bit 25 MHz 2 kB 256 B 12 bit 16 I/O 2 V 5.25 V + 125 C AEC-Q100