50 MHz 8-bit Microcontrollers - MCU

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Qty. RoHS ECAD Model Core
Program Memory Size
Data RAM Size
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Maximum Clock Frequency
ADC Resolution
Number of I/Os
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Supply Voltage - Max
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Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 64 kB 5 V 8-bit MCU
Datasheet
110In Stock
Min.: 1
Mult.: 1

8051 64 kB 4.25 kB QFN-32 50 MHz 12 bit 25 I/O 1.8 V 5.25 V SMD/SMT 8 bit - 40 C + 125 C C8051F503 AEC-Q100 Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 5 V 8-bit MCU
Datasheet
15In Stock
Min.: 1
Mult.: 1

8051 128 kB 8.25 kB QFP-48 50 MHz 12 bit 40 I/O 1.8 V 5.25 V SMD/SMT 8 bit - 40 C + 125 C C8051F581 AEC-Q100 Tray
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 64 kB flash 4.25 kB RAM 8-bit Busy Bee MCU
Datasheet
7In Stock
Min.: 1
Mult.: 1

CIP-51 8051 64 kB 4.35 kB QFP-32 50 MHz 10 bit, 12 bit 28 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 125 C Tray
ZiLOG 8-bit Microcontrollers - MCU eZ80AcclaimPlus! Connectivity ASSP Rev AC
Datasheet
223In Stock
Min.: 1
Mult.: 1
eZ80 256 kB 8 kB 50 MHz No ADC 32 I/O 3 V 3.6 V SMD/SMT 8 bit - 40 C + 105 C EZ80F91
Infineon Technologies 8-bit Microcontrollers - MCU 64K Flash 50MHz 8051 1.71V to 5.5V
Datasheet
2 600Expected 06/07/2026
Min.: 1
Mult.: 1

8051 64 kB 8 kB QFN-48 50 MHz 12 bit 31 I/O 1.71 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C CY8C3446 Tray

Silicon Labs 8-bit Microcontrollers - MCU 8KB,24ADC,28Pin MCU
Datasheet
1 528Expected 14/08/2026
Min.: 1
Mult.: 1

8051 8 kB 768 B QFN-28 50 MHz 24 bit 17 I/O 2.7 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C C8051F351 Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 128 kB 8-bit MCU
Datasheet
550Expected 23/07/2026
Min.: 1
Mult.: 1

8051 128 kB 8.25 kB TQFP-64 50 MHz 12 bit 32 I/O 2.7 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C C8051F125 Tray

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 16 kB flash 2.25 kB RAM 8-bit Busy Bee MCU
Datasheet
2 999Expected 19/06/2026
MouseReel Available
Min.: 1
Mult.: 1
: 1 500

CIP-51 8051 16 kB 2.3 kB QFN-28 50 MHz 12 bit 22 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 85 C EFM8BB2 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
1In Stock
Min.: 1
Mult.: 1

CIP-51 8051 16 kB 2.3 kB QFN-28 50 MHz 12 bit 22 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 125 C EFM8BB2 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 23/04/2027
Min.: 1
Mult.: 1
: 1 500

CIP-51 8051 16 kB 2.25 kB QFN-20 50 MHz 12 bit 16 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 125 C EFM8BB2 AEC-Q100 Reel, 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
1 000Expected 26/06/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3 000

16 kB 512 B QFN-16 50 MHz 12 bit 12 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 85 C BB50 Reel, Cut Tape, MouseReel
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
200Expected 19/06/2026
Min.: 1
Mult.: 1

16 kB 512 B QFN-12 50 MHz 12 bit 9 I/O 1.8 V 5.5 V SMD/SMT 8 bit - 40 C + 125 C BB50 Cut Tape
Silicon Labs 8-bit Microcontrollers - MCU 50 MIPS, 64 kB, 4 kB, CAN2.0, LIN 2.1, SPI, UART, I2C, QFP48
Datasheet
206Expected 22/01/2027
MouseReel Available
Min.: 1
Mult.: 1
: 500

8051 64 kB 4.25 kB TQFP-48 50 MHz 12 bit 40 I/O 1.8 V 5.25 V SMD/SMT 8 bit - 40 C + 125 C C8051F500 Reel, Cut Tape, MouseReel
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 16 kB LFO 8-bit MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1 911
Mult.: 1 911

8051 16 kB 1 kB QFN-24 50 MHz 1.8 V 3.6 V SMD/SMT 8 bit - 40 C + 105 C C8051F391 Tube
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 16 kB LFO 8-bit MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1 911
Mult.: 1 911

8051 8 kB 1 kB QFN-24 50 MHz 10 bit 21 I/O 1.8 V 3.6 V SMD/SMT 8 bit - 40 C + 105 C C8051F394 Tube
Silicon Labs 8-bit Microcontrollers - MCU 8kB/1kB RAM, 10b ADC, 10b 2xDAC, QFN24
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1 500
Mult.: 1 500
: 1 500

8051 8 kB 1 kB 50 MHz 10 bit 21 I/O 1.8 V 3.6 V SMD/SMT 8 bit - 40 C + 105 C C8051F394 Reel
Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 8 kB LFO 8-bit MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1 911
Mult.: 1 911

8051 8 kB 1 kB QFN-24 50 MHz 1.8 V 3.6 V SMD/SMT 8 bit - 40 C + 105 C C8051F395 Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 8 kB LFO 8-bit MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1 911
Mult.: 1 911

8051 8 kB 1 kB QFN-20 50 MHz 10 bit 17 I/O 1.8 V 3.6 V SMD/SMT 8 bit - 40 C + 105 C C8051F396 Tube
Silicon Labs 8-bit Microcontrollers - MCU 8kB/1kB RAM, 10b ADC, 10b 2xDAC, QFN20
Datasheet
Non-Stocked Lead-Time 12 Weeks
MouseReel Available
Min.: 1
Mult.: 1
: 1 500

8051 8 kB 1 kB QFN-20 50 MHz 10 bit 17 I/O 1.8 V 3.6 V SMD/SMT 8 bit - 40 C + 105 C C8051F396 Reel, Cut Tape, MouseReel

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 8 kB LFO 8-bit MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1 911
Mult.: 1 911

8051 8 kB 1 kB QFN-20 50 MHz 1.8 V 3.6 V SMD/SMT 8 bit - 40 C + 105 C C8051F397 Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 8 kB LFO 8-bit MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1 911
Mult.: 1 911

8051 4 kB 1 kB QFN-20 50 MHz 10 bit 17 I/O 1.8 V 3.6 V SMD/SMT 8 bit - 40 C + 105 C C8051F398 Tube

Silicon Labs 8-bit Microcontrollers - MCU 8051 50 MHz 4 kB LFO 8-bit MCU
Datasheet
Non-Stocked Lead-Time 12 Weeks
Min.: 1 911
Mult.: 1 911

8051 4 kB 1 kB QFN-20 50 MHz 1.8 V 3.6 V SMD/SMT 8 bit - 40 C + 105 C C8051F399 Tube

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 12 Weeks
Min.: 1 500
Mult.: 1 500
: 1 500

CIP-51 8051 16 kB 2.3 kB QFN-24 50 MHz 10 bit, 12 bit 20 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 125 C 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 12 Weeks
Min.: 1 911
Mult.: 1 911

CIP-51 8051 16 kB 2.3 kB QFN-24 50 MHz 10 bit, 12 bit 20 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 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
Non-Stocked Lead-Time 12 Weeks
Min.: 1 500
Mult.: 1 500
: 1 500

CIP-51 8051 16 kB 2.3 kB QFN-32 50 MHz 10 bit, 12 bit 29 I/O 2.2 V 3.6 V SMD/SMT 8 bit - 40 C + 125 C Reel