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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: $9.65
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

$9.65

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 16K Flash 50MHz 8051 1.71V to 5.5V

CY8C3244PVI-133
Infineon Technologies
1: $10.43
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

$10.43

$8.06

$7.69

$5.72

View

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 32K Flash 50MHz 8051 1.71V to 5.5V

CY8C3445AXI-104
Infineon Technologies
1: $15.23
Non-Stocked 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

Non-Stocked Lead-Time 10 Weeks

$15.23

$11.88

$10.36

$9.98

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 32K Flash 50MHz 8051 1.71V to 5.5V

CY8C3445LTI-078
Infineon Technologies
1: $12.50
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

$12.50

$9.80

$8.72

$8.39

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 64K Flash 67MHz 8051 0.5V to 5.5V

CY8C3666AXI-036
Infineon Technologies
1: $19.89
Non-Stocked 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

Non-Stocked Lead-Time 10 Weeks

$19.89

$15.96

$13.88

$13.44

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 16K Flash 50MHz 8051 1.71V to 5.5V

CY8C3444LTI-119
Infineon Technologies
1: $12.56
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

$12.56

$10.21

$9.74

$8.12

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

CY8C3866AXI-039
Infineon Technologies
1: $27.62
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3866AXI-039

Mouser Part No
727-CY8C3866AXI-039

Infineon Technologies

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

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

$27.62

$21.87

$19.81

$18.80

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

TQFP-100

8051

8 bit

67 MHz

64 kB

8 kB

20 bit

72 I/O

- 40 C

+ 85 C

Tray

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

CY8C3666LTI-050
Infineon Technologies
1: $22.68
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3666LTI-050

Mouser Part No
727-CY8C3666LTI-050

Infineon Technologies

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

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

$22.68

$18.33

$17.57

$15.48

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-48

8051

8 bit

67 MHz

64 kB

8 kB

12 bit

31 I/O

- 40 C

+ 85 C

Tray

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

SI1062-A-GMR
Silicon Labs
2,500: $6.57
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

$6.57

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: $7.36
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

$7.36

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 16 kB flash 1.28 kB RAM 16 GPIO BB5 8-bit MCU

EFM8BB51F16I-C-TSSOP20R
Silicon Labs
2,500: $0.551
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

$0.551

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

RF Microcontrollers - MCU RF+MCU 8051 25 MHz 64 kB +20 dBm

SI1061-A-GMR
Silicon Labs
2,500: $6.80
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
SI1061-A-GMR

Mouser Part No
634-SI1061-A-GMR

Silicon Labs

RF Microcontrollers - MCU RF+MCU 8051 25 MHz 64 kB +20 dBm

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$6.80

Min.: 2,500
Mult.: 2,500

: 2,500

RF Microcontrollers - MCU

SMD/SMT

QFN-36

8051

8 bit

25 MHz

32 kB

4 kB

10 bit

11 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-TSSOP20R
Silicon Labs
2,500: $0.52
Non-Stocked Lead-Time 24 Weeks

Mfr. Part No.
EFM8BB52F16I-C-TSSOP20R

Mouser Part No
634-EFM852F16ITOP20R

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

$0.52

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

EFM8BB51F16G-C-TSSOP20R
Silicon Labs
1: $1.03
Non-Stocked Lead-Time 24 Weeks

Mfr. Part No.
EFM8BB51F16G-C-TSSOP20R

Mouser Part No
634-EFM851GCTSSOP20R

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

Cut Tape

$1.03

$0.736

$0.663

$0.583

View

Reel

$0.52

Min.: 1
Mult.: 1

: 2,500

8-bit Microcontrollers - MCU

SMD/SMT

TSSOP-20

16 kB

1.28 kB

16 I/O

- 40 C

+ 85 C

Reel, Cut Tape

8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU

EFM8SB20F32G-B-QFN24
Silicon Labs
1: $2.29
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8SB20F32G-B-QFN24

Mouser Part No
634-EFM8SBF32GBQFN24

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 32 kB flash 4 kB RAM 8-bit Sleepy Bee MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$2.29

$1.83

$1.61

$1.48

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-24

CIP-51 8051

8 bit

25 MHz

32 kB

4.25 kB

10 bit

16 I/O

- 40 C

+ 85 C

Tube

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: $1.03
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

$1.03

$0.736

$0.663

$0.629

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 32 kB flash 2.304 kB RAM 16 GPIO BB5 8-bit MCU

EFM8BB52F32G-C-TSSOP20R
Silicon Labs
2,500: $0.614
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

$0.614

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 0.5 kB RAM 12 GPIO BB5 8-bit MCU

EFM8BB50F16I-A-SOIC16R
Silicon Labs
2,500: $0.568
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

$0.568

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: $0.461
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

$0.461

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: $1.11
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

$1.11

$0.867

$0.771

$0.704

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

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 29 GPIO BB5 8-bit MCU

EFM8BB52F16I-C-QFN32R
Silicon Labs
1: $0.96
Non-Stocked Lead-Time 24 Weeks

Mfr. Part No.
EFM8BB52F16I-C-QFN32R

Mouser Part No
634-EFM852F16IQFN32R

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 29 GPIO BB5 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 24 Weeks

Cut Tape

$0.96

$0.67

$0.601

$0.525

View

Reel

$0.461

Min.: 1
Mult.: 1

: 2,500

8-bit Microcontrollers - MCU

SMD/SMT

QFN-32

16 kB

1.28 kB

16 I/O

- 40 C

+ 85 C

Reel, Cut Tape

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 25 GPIO BB5 8-bit MCU

EFM8BB52F16G-C-TSSOP28R
Silicon Labs
2,500: $0.551
Non-Stocked Lead-Time 24 Weeks

Mfr. Part No.
EFM8BB52F16G-C-TSSOP28R

Mouser Part No
634-EFM852F16GTOP28R

Silicon Labs

8-bit Microcontrollers - MCU 5 Volt 8051 50 Mhz 16 kB flash 1.28 kB RAM 25 GPIO BB5 8-bit MCU

Learn More

Datasheet

Non-Stocked Lead-Time 24 Weeks

Reel

$0.551

Min.: 2,500
Mult.: 2,500

: 2,500

8-bit Microcontrollers - MCU

SMD/SMT

TSSOP-28

16 kB

1.28 kB

16 I/O

- 40 C

+ 85 C

Reel

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

CY8C3666AXI-037
Infineon Technologies
1: $19.45
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

$19.45

$15.59

$13.57

$12.55

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

EFM8BB52F16G-C-TSSOP20R
Silicon Labs
2,500: $0.504
Non-Stocked Lead-Time 24 Weeks

Mfr. Part No.
EFM8BB52F16G-C-TSSOP20R

Mouser Part No
634-EFM852F16GTOP20R

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

$0.504

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 8051 25 MHz 2 kB Flash 0.25 kB RAM 8-bit Busy Bee MCU

EFM8BB10F2A-A-QFN20
Silicon Labs
1: $2.44
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
EFM8BB10F2A-A-QFN20

Mouser Part No
634-FM8BB10F2AAQFN20

Silicon Labs

8-bit Microcontrollers - MCU 8051 25 MHz 2 kB Flash 0.25 kB RAM 8-bit Busy Bee MCU

Learn More

Datasheet

Non-Stocked Lead-Time 12 Weeks

$2.44

$1.91

$1.71

$1.58

View

Min.: 1
Mult.: 1

8-bit Microcontrollers - MCU

SMD/SMT

QFN-20

CIP-51 8051

8 bit

25 MHz

2 kB

256 B

12 bit

16 I/O

- 40 C

+ 125 C

AEC-Q100

Tube

8051 microcontroller Embedded Processors & Controllers

Types of Embedded Processors & Controllers

Customer Service Office

Company

Resources

Support

CSP-16
DFN-10
LQFP-32
LQFP-44
LQFP-48
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

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