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8051 microcontroller Embedded Processors & Controllers

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Part #

8-bit Microcontrollers - MCU 32K Flash 67MHz 8051 0.5V to 5.5V

CY8C3665LTI-044
Infineon Technologies
1.300: Rp174.654
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3665LTI-044

Mouser Part No
727-CY8C3665LTI-044

Infineon Technologies

8-bit Microcontrollers - MCU 32K Flash 67MHz 8051 0.5V to 5.5V

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Rp174.654

View

Min.: 1.300
Mult.: 1.300

8-bit Microcontrollers - MCU

SMD/SMT

QFN-68

8051

8 bit

67 MHz

32 kB

4 kB

12 bit

48 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V

CY8C3245PVI-150
Infineon Technologies
600: Rp116.681
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3245PVI-150

Mouser Part No
727-CY8C3245PVI-150

Infineon Technologies

8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Rp116.681

Rp110.443

View

Min.: 600
Mult.: 600

8-bit Microcontrollers - MCU

SMD/SMT

SSOP-48

8051

8 bit

50 MHz

32 kB

4 kB

12 bit

31 I/O

- 40 C

+ 85 C

Tube

8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V

CY8C3445AXI-104
Infineon Technologies
1: Rp253.909
Lead-Time 10 Weeks

Mfr. Part No.
CY8C3445AXI-104

Mouser Part No
727-CY8C3445AXI-104

Infineon Technologies

8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V

Learn More

Datasheet

Lead-Time 10 Weeks

Rp253.909

Rp199.971

Rp172.636

Rp166.949

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-100

8051

8 bit

50 MHz

32 kB

4 kB

12 bit

70 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V

CY8C3244PVI-133
Infineon Technologies
1: Rp191.349
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3244PVI-133

Mouser Part No
727-CY8C3244PVI-133

Infineon Technologies

8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Rp191.349

Rp147.869

Rp141.081

Rp104.939

Rp87.144

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

SSOP-48

8051

8 bit

50 MHz

16 kB

2 kB

12 bit

29 I/O

- 40 C

+ 85 C

Tube

8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V

CY8C3666AXI-037
Infineon Technologies
1: Rp356.830
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3666AXI-037

Mouser Part No
727-CY8C3666AXI-037

Infineon Technologies

8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Rp356.830

Rp286.198

Rp248.955

Rp230.242

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-100

8051

8 bit

67 MHz

64 kB

8 kB

12 bit

70 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V

CY8C3445LTI-079
Infineon Technologies
2.600: Rp138.512
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3445LTI-079

Mouser Part No
727-CY8C3445LTI-079

Infineon Technologies

8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Rp138.512

Quote

Min.: 2.600
Mult.: 2.600

8-bit Microcontrollers - MCU

SMD/SMT

QFN-68

8051

8 bit

50 MHz

32 kB

4 kB

12 bit

46 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V

CY8C3244LTI-123
Infineon Technologies
1: Rp193.917
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3244LTI-123

Mouser Part No
727-CY8C3244LTI-123

Infineon Technologies

8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Rp193.917

Rp149.887

Rp142.915

Rp124.019

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-48

8051

8 bit

50 MHz

16 kB

2 kB

12 bit

29 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU 32K Flash 67MHz 8051 0.5V to 5.5V

CY8C3865LTI-014
Infineon Technologies
1.300: Rp250.239
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3865LTI-014

Mouser Part No
727-CY8C3865LTI-014

Infineon Technologies

8-bit Microcontrollers - MCU 32K Flash 67MHz 8051 0.5V to 5.5V

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Rp250.239

Quote

Min.: 1.300
Mult.: 1.300

8-bit Microcontrollers - MCU

SMD/SMT

QFN-68

8051

8 bit

67 MHz

32 kB

8 kB

20 bit

28 I/O

+ 85 C

Tray

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU

EFM8BB51F16I-C-TSSOP20R
Silicon Labs
2.500: Rp10.292
Non-Stocked Lead-Time 24 Weeks

Mfr. Part No.
EFM8BB51F16I-C-TSSOP20R

Mouser Part No
634-EFM851F16TSOP20R

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 24 Weeks

Reel

Rp10.292

Rp10.127

Min.: 2.500
Mult.: 2.500

: 2.500

8-bit Microcontrollers - MCU

SMD/SMT

TSSOP-20

16 kB

1.28 kB

16 I/O

- 40 C

+ 85 C

Reel

8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V

CY8C3445LTI-078
Infineon Technologies
1: Rp229.325
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3445LTI-078

Mouser Part No
727-CY8C3445LTI-078

Infineon Technologies

8-bit Microcontrollers - MCU 32K Flash 50MHz 8051 1.71V to 5.5V

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Rp229.325

Rp179.791

Rp159.977

Rp153.923

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-48

8051

8 bit

50 MHz

32 kB

4 kB

12 bit

29 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V

CY8C3444LTI-119
Infineon Technologies
1: Rp230.426
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3444LTI-119

Mouser Part No
727-CY8C3444LTI-119

Infineon Technologies

8-bit Microcontrollers - MCU 16K Flash 50MHz 8051 1.71V to 5.5V

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Rp230.426

Rp187.313

Rp178.690

Rp148.970

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-48

8051

8 bit

50 MHz

16 kB

2 kB

12 bit

29 I/O

- 40 C

+ 85 C

Tray

8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V

CY8C3666AXI-036
Infineon Technologies
1: Rp334.815
Lead-Time 10 Weeks

Mfr. Part No.
CY8C3666AXI-036

Mouser Part No
727-CY8C3666AXI-036

Infineon Technologies

8-bit Microcontrollers - MCU 64K Flash 67MHz 8051 0.5V to 5.5V

Learn More

Datasheet

Lead-Time 10 Weeks

Rp334.815

Rp266.200

Rp231.343

Rp224.005

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-100

8051

8 bit

67 MHz

64 kB

8 kB

12 bit

28 I/O

+ 85 C

Tray

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU

EFM8BB50F16I-A-SOIC16R
Silicon Labs
2.500: Rp10.586
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB50F16I-A-SOIC16R

Mouser Part No
634-M8BB50F16IAIC16R

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

Rp10.586

Rp10.421

Min.: 2.500
Mult.: 2.500

: 2.500

8-bit Microcontrollers - MCU

SMD/SMT

SOIC-16

8 bit

50 MHz

16 kB

512 B

12 bit

12 I/O

- 40 C

+ 125 C

Reel

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU

EFM8BB50F4I-A-SOIC16R
Silicon Labs
2.500: Rp8.824
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB50F4I-A-SOIC16R

Mouser Part No
634-M8BB50F4IASIC16R

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

Rp8.824

Rp8.421

Min.: 2.500
Mult.: 2.500

: 2.500

8-bit Microcontrollers - MCU

SMD/SMT

SOIC-16

8 bit

50 MHz

4 kB

512 B

12 bit

12 I/O

- 40 C

+ 125 C

Reel

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU

EFM8BB50F8I-A-SOIC16
Silicon Labs
1: Rp20.914
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB50F8I-A-SOIC16

Mouser Part No
634-M8BB50F8IASOIC16

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Rp20.914

Rp17.851

Rp16.585

Rp14.383

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

SOIC-16

8 bit

50 MHz

8 kB

512 B

12 bit

12 I/O

- 40 C

+ 125 C

Tube

RF Microcontrollers - MCU RF+MCU 8051 25 MHz 32 kB +13 dBm

SI1062-A-GMR
Silicon Labs
2.500: Rp120.533
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
SI1062-A-GMR

Mouser Part No
634-SI1062-A-GMR

Silicon Labs

RF Microcontrollers - MCU RF+MCU 8051 25 MHz 32 kB +13 dBm

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

Rp120.533

Min.: 2.500
Mult.: 2.500

: 2.500

RF Microcontrollers - MCU

SMD/SMT

QFN-36

8051

8 bit

25 MHz

64 kB

4 kB

10 bit

11 I/O

- 40 C

+ 85 C

Reel

RF Microcontrollers - MCU RF+MCU 8051 25 MHz 16 kB +20 dBm

SI1060-A-GMR
Silicon Labs
2.500: Rp135.027
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
SI1060-A-GMR

Mouser Part No
634-SI1060-A-GMR

Silicon Labs

RF Microcontrollers - MCU RF+MCU 8051 25 MHz 16 kB +20 dBm

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

Rp135.027

Min.: 2.500
Mult.: 2.500

: 2.500

RF Microcontrollers - MCU

SMD/SMT

QFN-36

8051

8 bit

25 MHz

64 kB

4 kB

10 bit

11 I/O

- 40 C

+ 85 C

Reel

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU

EFM8BB52F32G-C-TSSOP20R
Silicon Labs
2.500: Rp11.466
Non-Stocked Lead-Time 24 Weeks

Mfr. Part No.
EFM8BB52F32G-C-TSSOP20R

Mouser Part No
634-EFM852F32GTOP20R

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 24 Weeks

Reel

Rp11.466

Rp11.283

Min.: 2.500
Mult.: 2.500

: 2.500

8-bit Microcontrollers - MCU

SMD/SMT

TSSOP-20

16 kB

1.28 kB

16 I/O

- 40 C

+ 85 C

Reel

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU

EFM8BB52F16I-C-TSSOP20
Silicon Labs
1: Rp29.904
Non-Stocked Lead-Time 24 Weeks

Mfr. Part No.
EFM8BB52F16I-C-TSSOP20

Mouser Part No
634-EFM852F16ITSOP20

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 24 Weeks

Rp29.904

Rp19.080

Rp17.080

Rp14.053

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TSSOP-20

16 kB

1.28 kB

16 I/O

- 40 C

+ 85 C

Cut Tape

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU

EFM8BB50F4I-A-QFN16
Silicon Labs
1: Rp15.594
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB50F4I-A-QFN16

Mouser Part No
634-M8BB50F4IAQFN16

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 4 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Rp15.594

Rp13.319

Rp12.402

Rp12.108

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-16

8 bit

50 MHz

4 kB

512 B

12 bit

12 I/O

- 40 C

+ 125 C

Cut Tape

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU

EFM8BB50F8I-A-QFN16
Silicon Labs
1: Rp18.346
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB50F8I-A-QFN16

Mouser Part No
634-M8BB50F8IAQFN16

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 0.5 kB RAM 12 GPIO BB5 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Rp18.346

Rp15.741

Rp13.833

Rp12.347

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-16

8 bit

50 MHz

8 kB

512 B

12 bit

12 I/O

- 40 C

+ 125 C

Cut Tape

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU

EFM8BB50F8I-A-QFN12
Silicon Labs
1: Rp17.796
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB50F8I-A-QFN12

Mouser Part No
634-M8BB50F8IAQFN12

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 8 kB flash 0.5 kB RAM 9 GPIO BB5 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Rp17.796

Rp15.190

Rp13.356

Rp11.925

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-12

8 bit

50 MHz

8 kB

512 B

12 bit

9 I/O

- 40 C

+ 125 C

Cut Tape

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU

EFM8BB52F16I-C-QFN20R
Silicon Labs
2.500: Rp8.017
Non-Stocked Lead-Time 24 Weeks

Mfr. Part No.
EFM8BB52F16I-C-QFN20R

Mouser Part No
634-EFM852F16IQFN20R

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 24 Weeks

Reel

Rp8.017

Rp7.320

Min.: 2.500
Mult.: 2.500

: 2.500

8-bit Microcontrollers - MCU

SMD/SMT

QFN-20

16 kB

1.28 kB

16 I/O

- 40 C

+ 85 C

Reel

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU

EFM8BB52F32I-C-QFN20
Silicon Labs
1: Rp20.914
Non-Stocked Lead-Time 24 Weeks

Mfr. Part No.
EFM8BB52F32I-C-QFN20

Mouser Part No
634-EFM852F32ICQFN20

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 24 Weeks

Rp20.914

Rp17.851

Rp16.585

Rp14.475

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-20

32 kB

2.3 kB

16 I/O

- 40 C

+ 125 C

Cut Tape

8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU

EFM8BB10F8G-A-QFN20
Silicon Labs
1: Rp21.281
Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB10F8G-A-QFN20

Mouser Part No
634-8BB10F8GAQF20

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 8 kB flash 0.5 kB RAM 8-bit Busy Bee MCU

Learn More

Datasheet

Lead-Time 12 Weeks

Rp21.281

Rp18.163

Rp15.924

Rp14.842

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-20

CIP-51 8051

8 bit

25 MHz

8 kB

512 B

12 bit

16 I/O

- 40 C

+ 85 C

Tube

8051 microcontroller Embedded Processors & Controllers

Types of Embedded Processors & Controllers

Customer Service Office

Company

Resources

Support

CSP-16
DFN-10
LQFP-32
LQFP-80
PDIP-14
PDIP-20
PDIP-40
PLCC-44
PQFP-48
QFN-11
QFN-12
QFN-16
QFN-20
QFN-24
QFN-28
QFN-32
QFN-36
QFN-40
QFN-48
QFN-68

128 B
256 B
512 B
768 B
1 kB
1.25 kB
1.28 kB
1.54 kB
2 kB
2.25 kB
2.3 kB
2.31 kB
3.25 kB
4 kB
4.25 kB
4.35 kB
8 kB
8.25 kB
16 kB
32 kB

6 I/O
8 I/O
9 I/O
11 I/O
12 I/O
13 I/O
15 I/O
16 I/O
17 I/O
18 I/O
19 I/O
20 I/O
21 I/O
22 I/O
24 I/O
25 I/O
28 I/O
29 I/O
31 I/O
32 I/O