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8051 Core Embedded Processors & Controllers

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Core = 8051

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Part #

8-bit Microcontrollers - MCU 32Kb Flash 4Kb SRAM PSoC 3

CY8C3445LTI-078T
Infineon Technologies
2,000: $6.94
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3445LTI-078T

Mouser Part No
727-CY8C3445LTI-078T

Infineon Technologies

8-bit Microcontrollers - MCU 32Kb Flash 4Kb SRAM PSoC 3

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$6.94

Min.: 2,000
Mult.: 2,000

Reel: 2,000

8051

8 bit

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

CY8C3445LTI-079
Infineon Technologies
2,600: $7.04
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

$7.04

Min.: 2,600
Mult.: 2,600

SMD/SMT

QFN-68

8051

46 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU 32Kb Flash 4Kb SRAM PSoC 3

CY8C3445LTI-079T
Infineon Technologies
2,000: $7.08
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3445LTI-079T

Mouser Part No
727-CY8C3445LTI-079T

Infineon Technologies

8-bit Microcontrollers - MCU 32Kb Flash 4Kb SRAM PSoC 3

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$7.08

Min.: 2,000
Mult.: 2,000

Reel: 2,000

8051

8 bit

8-bit Microcontrollers - MCU 32Kb Flash 4Kb SRAM PSoC 3

CY8C3445PVI-094T
Infineon Technologies
1,000: $6.97
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3445PVI-094T

Mouser Part No
727-CY8C3445PVI-094T

Infineon Technologies

8-bit Microcontrollers - MCU 32Kb Flash 4Kb SRAM PSoC 3

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$6.97

Min.: 1,000
Mult.: 1,000

Reel: 1,000

8051

8 bit

8-bit Microcontrollers - MCU 64Kb Flash 8Kb SRAM PSoC 3

CY8C3446AXI-105T
Infineon Technologies
1,500: $8.47
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3446AXI-105T

Mouser Part No
727-CY8C3446AXI-105T

Infineon Technologies

8-bit Microcontrollers - MCU 64Kb Flash 8Kb SRAM PSoC 3

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$8.47

Min.: 1,500
Mult.: 1,500

Reel: 1,500

8051

8 bit

8-bit Microcontrollers - MCU PSoC 64KB FLASH 1.7-5.5V 25 I/O

CY8C3446LTI-073T
Infineon Technologies
2,000: $8.45
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3446LTI-073T

Mouser Part No
727-CY8C3446LTI-073T

Infineon Technologies

8-bit Microcontrollers - MCU PSoC 64KB FLASH 1.7-5.5V 25 I/O

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$8.45

Min.: 2,000
Mult.: 2,000

Reel: 2,000

SMD/SMT

QFN-48

8051

8 bit

8-bit Microcontrollers - MCU PSoC 64KB FL 1.7-5.5V

CY8C3446LTI-085T
Infineon Technologies
2,000: $8.59
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3446LTI-085T

Mouser Part No
727-CY8C3446LTI-085T

Infineon Technologies

8-bit Microcontrollers - MCU PSoC 64KB FL 1.7-5.5V

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$8.59

Min.: 2,000
Mult.: 2,000

Reel: 2,000

SMD/SMT

QFN-68

8051

8 bit

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

CY8C3665LTI-044
Infineon Technologies
1,300: $8.37
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

$8.37

Quote

Min.: 1,300
Mult.: 1,300

SMD/SMT

QFN-68

8051

48 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU 32Kb Flash 4Kb SRAM PSoC 3

CY8C3665LTI-044T
Infineon Technologies
2,000: $8.92
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3665LTI-044T

Mouser Part No
727-CY8C3665LTI-044T

Infineon Technologies

8-bit Microcontrollers - MCU 32Kb Flash 4Kb SRAM PSoC 3

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$8.92

Min.: 2,000
Mult.: 2,000

Reel: 2,000

8051

8 bit

12 bit

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

CY8C3666AXI-036
Infineon Technologies
180: $11.14
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

$11.14

$10.87

$10.81

Quote

Min.: 180
Mult.: 180

SMD/SMT

TQFP-100

8051

28 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU 64Kb Flash 8Kb SRAM PSoC 3

CY8C3666AXI-036T
Infineon Technologies
1,500: $10.94
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3666AXI-036T

Mouser Part No
727-CY8C3666AXI-036T

Infineon Technologies

8-bit Microcontrollers - MCU 64Kb Flash 8Kb SRAM PSoC 3

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$10.94

Min.: 1,500
Mult.: 1,500

Reel: 1,500

8051

8 bit

12 bit

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

CY8C3666AXI-037
Infineon Technologies
1: $15.25
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

$15.25

$12.27

$10.93

$10.37

View

Min.: 1
Mult.: 1

SMD/SMT

TQFP-100

8051

70 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU 64Kb Flash 8Kb SRAM PSoC 3

CY8C3666AXI-037T
Infineon Technologies
1,500: $10.69
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3666AXI-037T

Mouser Part No
727-CY8C3666AXI-037T

Infineon Technologies

8-bit Microcontrollers - MCU 64Kb Flash 8Kb SRAM PSoC 3

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$10.69

Min.: 1,500
Mult.: 1,500

Reel: 1,500

TQFP-100

8051

8 bit

12 bit

8-bit Microcontrollers - MCU PSoC 64KB FLASH 1.7-5.5V 62 I/O

CY8C3666AXI-052T
Infineon Technologies
1,500: $9.35
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3666AXI-052T

Mouser Part No
727-CY8C3666AXI-052T

Infineon Technologies

8-bit Microcontrollers - MCU PSoC 64KB FLASH 1.7-5.5V 62 I/O

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$9.35

Min.: 1,500
Mult.: 1,500

Reel: 1,500

SMD/SMT

TQFP-100

8051

8 bit

12 bit

8-bit Microcontrollers - MCU 64Kb Flash 8Kb SRAM PSoC 3

CY8C3666LTI-027T
Infineon Technologies
2,000: $13.11
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3666LTI-027T

Mouser Part No
727-CY8C3666LTI-027T

Infineon Technologies

8-bit Microcontrollers - MCU 64Kb Flash 8Kb SRAM PSoC 3

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$13.11

Min.: 2,000
Mult.: 2,000

Reel: 2,000

8051

8 bit

12 bit

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

CY8C3666LTI-050
Infineon Technologies
520: $12.93
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

$12.93

View

Min.: 520
Mult.: 520

SMD/SMT

QFN-48

8051

31 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU 64Kb Flash 8Kb SRAM PSoC 3

CY8C3666LTI-050T
Infineon Technologies
2,000: $12.46
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3666LTI-050T

Mouser Part No
727-CY8C3666LTI-050T

Infineon Technologies

8-bit Microcontrollers - MCU 64Kb Flash 8Kb SRAM PSoC 3

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$12.46

Min.: 2,000
Mult.: 2,000

Reel: 2,000

8051

8 bit

12 bit

8-bit Microcontrollers - MCU 64K Flash 8K SRAM 8bit 67 MHz

CY8C3666LTI-201
Infineon Technologies
2,600: $8.64
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3666LTI-201

Mouser Part No
727-CY8C3666LTI-201

Infineon Technologies

8-bit Microcontrollers - MCU 64K Flash 8K SRAM 8bit 67 MHz

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

$8.64

Quote

Min.: 2,600
Mult.: 2,600

SMD/SMT

QFN-68

8051

46 I/O

8 bit

12 bit

8-bit Microcontrollers - MCU 5.50 V, PSoC 3 CapSense Plus

CY8C3666LTI-201T
Infineon Technologies
2,000: $8.68
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3666LTI-201T

Mouser Part No
727-CY8C3666LTI-201T

Infineon Technologies

8-bit Microcontrollers - MCU 5.50 V, PSoC 3 CapSense Plus

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$8.68

Min.: 2,000
Mult.: 2,000

Reel: 2,000

8051

8 bit

12 bit

8-bit Microcontrollers - MCU 5.50 V, PSoC 3 CapSense Plus

CY8C3666LTI-203T
Infineon Technologies
2,000: $9.56
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3666LTI-203T

Mouser Part No
727-CY8C3666LTI-203T

Infineon Technologies

8-bit Microcontrollers - MCU 5.50 V, PSoC 3 CapSense Plus

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$9.56

Min.: 2,000
Mult.: 2,000

Reel: 2,000

8051

8 bit

12 bit

8-bit Microcontrollers - MCU 8051 8bit 67MHz 32KB

CY8C3865AXI-019T
Infineon Technologies
1,500: $13.44
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3865AXI-019T

Mouser Part No
727-CY8C3865AXI-019T

Infineon Technologies

8-bit Microcontrollers - MCU 8051 8bit 67MHz 32KB

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$13.44

Min.: 1,500
Mult.: 1,500

Reel: 1,500

SMD/SMT

TQFP-100

8051

8 bit

20 bit

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

CY8C3865LTI-014
Infineon Technologies
1,300: $12.51
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

$12.51

Quote

Min.: 1,300
Mult.: 1,300

SMD/SMT

QFN-68

8051

28 I/O

8 bit

20 bit

8-bit Microcontrollers - MCU 32Kb Flash 4Kb SRAM PSoC 3

CY8C3865LTI-014T
Infineon Technologies
2,000: $13.06
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3865LTI-014T

Mouser Part No
727-CY8C3865LTI-014T

Infineon Technologies

8-bit Microcontrollers - MCU 32Kb Flash 4Kb SRAM PSoC 3

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$13.06

Min.: 2,000
Mult.: 2,000

Reel: 2,000

8051

8 bit

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

CY8C3866AXI-035
Infineon Technologies
900: $15.69
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3866AXI-035

Mouser Part No
727-CY8C3866AXI-035

Infineon Technologies

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

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

$15.69

View

Min.: 900
Mult.: 900

SMD/SMT

TQFP-100

8051

70 I/O

8 bit

20 bit

8-bit Microcontrollers - MCU 32Kb Flash 4Kb SRAM PSoC 3

CY8C3866AXI-035T
Infineon Technologies
1,500: $15.49
Non-Stocked Lead-Time 10 Weeks

Mfr. Part No.
CY8C3866AXI-035T

Mouser Part No
727-CY8C3866AXI-035T

Infineon Technologies

8-bit Microcontrollers - MCU 32Kb Flash 4Kb SRAM PSoC 3

Learn More

Datasheet

Non-Stocked Lead-Time 10 Weeks

Reel

$15.49

Min.: 1,500
Mult.: 1,500

Reel: 1,500

8051

8 bit

8051 Core Embedded Processors & Controllers

Types of Embedded Processors & Controllers

Customer Service Office

Company

Resources

Support

LQFP-32
LQFP-44
LQFP-48
LQFP-64
MQFP-80
MSOP-10
PDIP-20
PDIP-40
PLCC-28
PLCC-44
PLCC-68
PQFP-44
PQFP-48
QFN-11
QFN-20
QFN-24
QFN-28
QFN-32
QFN-33
QFN-40

4 I/O
6 I/O
7 I/O
8 I/O
11 I/O
12 I/O
13 I/O
15 I/O
16 I/O
17 I/O
18 I/O
20 I/O
21 I/O
24 I/O
25 I/O
26 I/O
28 I/O
29 I/O
30 I/O
31 I/O