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Microchip Technology Interface - I/O Expanders

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Part #

Interface - I/O Expanders 16bit Input/Output Exp SPI interface

MCP23S17T-E/SS
Microchip Technology
1: $1.78
23,660In Stock

Mfr. Part No.
MCP23S17T-E/SS

Mouser Part No
579-MCP23S17T-E/SS

Microchip Technology

Interface - I/O Expanders 16bit Input/Output Exp SPI interface

Learn More

Datasheet

23,660In Stock

Cut Tape

$1.78

Reel

$1.78

MouseReel Available

Min.: 1
Mult.: 1

: 2,100

MCP23S17

SMD/SMT

SSOP-28

Serial, SPI

16 I/O

With Interrupt

1.8 V

5.5 V

10 MHz

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

4 kV

Interface - I/O Expanders 16bit Input/Output Exp I2C interface

MCP23017-E/SO
Microchip Technology
1: $1.62
40,031In Stock

Mfr. Part No.
MCP23017-E/SO

Mouser Part No
579-MCP23017-E/SO

Microchip Technology

Interface - I/O Expanders 16bit Input/Output Exp I2C interface

Learn More

Datasheet

40,031In Stock

$1.62

Min.: 1
Mult.: 1

MCP23017

SMD/SMT

SOIC-28

I2C, Serial

16 I/O

With Interrupt

1.8 V

5.5 V

1.7 MHz

- 40 C

+ 125 C

Tube

4 kV

Interface - I/O Expanders 16bit Input/Output Exp I2C interface

MCP23017T-E/ML
Microchip Technology
1: $1.90
24,910In Stock

Mfr. Part No.
MCP23017T-E/ML

Mouser Part No
579-MCP23017T-E/ML

Microchip Technology

Interface - I/O Expanders 16bit Input/Output Exp I2C interface

Learn More

Datasheet

24,910In Stock

Cut Tape

$1.90

Reel

$1.90

MouseReel Available

Min.: 1
Mult.: 1

: 1,600

MCP23017

SMD/SMT

QFN-28

I2C, Serial

16 I/O

With Interrupt

1.8 V

5.5 V

1.7 MHz

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

4 kV

Interface - I/O Expanders 16bit Input/Output Exp I2C interface

MCP23017T-E/SS
Microchip Technology
1: $1.69
59,753In Stock

Mfr. Part No.
MCP23017T-E/SS

Mouser Part No
579-MCP23017T-E/SS

Microchip Technology

Interface - I/O Expanders 16bit Input/Output Exp I2C interface

Learn More

Datasheet

59,753In Stock

Cut Tape

$1.69

Reel

$1.69

MouseReel Available

Min.: 1
Mult.: 1

: 2,100

MCP23017

SMD/SMT

SSOP-28

I2C, Serial

16 I/O

With Interrupt

1.8 V

5.5 V

1.7 MHz

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

4 kV

Interface - I/O Expanders 8bit Input/Output Exp I2C interface

MCP23008-E/ML
Microchip Technology
1: $1.49
12,009In Stock

Mfr. Part No.
MCP23008-E/ML

Mouser Part No
579-MCP23008-E/ML

Microchip Technology

Interface - I/O Expanders 8bit Input/Output Exp I2C interface

Datasheet

12,009In Stock

$1.49

Min.: 1
Mult.: 1

SMD/SMT

QFN-20

I2C, Serial

8 I/O

With Interrupt

1.8 V

5.5 V

1.7 MHz

- 40 C

+ 125 C

Tube

Without ESD Protection

Interface - I/O Expanders In/Out I2C int

MCP23008-E/SO
Microchip Technology
1: $1.37
8,599In Stock

Mfr. Part No.
MCP23008-E/SO

Mouser Part No
579-MCP23008-E/SO

Microchip Technology

Interface - I/O Expanders In/Out I2C int

Datasheet

8,599In Stock

$1.37

Min.: 1
Mult.: 1

SMD/SMT

SOIC-18

I2C, Serial

8 I/O

With Interrupt

1.8 V

5.5 V

1.7 MHz

- 40 C

+ 125 C

Tube

Without ESD Protection

Interface - I/O Expanders In/Out I2C int

MCP23008-E/SS
Microchip Technology
1: $1.49
9,235In Stock

Mfr. Part No.
MCP23008-E/SS

Mouser Part No
579-MCP23008-E/SS

Microchip Technology

Interface - I/O Expanders In/Out I2C int

Datasheet

9,235In Stock

$1.49

Min.: 1
Mult.: 1

SMD/SMT

SSOP-20

I2C, Serial

8 I/O

With Interrupt

1.8 V

5.5 V

1.7 MHz

- 40 C

+ 125 C

Tube

Without ESD Protection

Interface - I/O Expanders In/Out I2C int

MCP23008T-E/SS
Microchip Technology
1: $1.49
7,218In Stock

Mfr. Part No.
MCP23008T-E/SS

Mouser Part No
579-MCP23008T-E/SS

Microchip Technology

Interface - I/O Expanders In/Out I2C int

Datasheet

7,218In Stock

Cut Tape

$1.49

Reel

$1.49

MouseReel Available

Min.: 1
Mult.: 1

: 1,600

SMD/SMT

SSOP-20

I2C, Serial

8 I/O

With Interrupt

1.8 V

5.5 V

1.7 MHz

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

Without ESD Protection

Interface - I/O Expanders 8-bit I/O Expander I2C interface

MCP23009-E/SS
Microchip Technology
1: $1.52
3,362In Stock

Mfr. Part No.
MCP23009-E/SS

Mouser Part No
579-MCP23009-E/SS

Microchip Technology

Interface - I/O Expanders 8-bit I/O Expander I2C interface

Datasheet

3,362In Stock

$1.52

Min.: 1
Mult.: 1

SMD/SMT

SSOP-20

I2C, Serial

8 I/O

With Interrupt

1.8 V

5.5 V

3.4 MHz

- 40 C

+ 125 C

Tube

4 kV

Interface - I/O Expanders 8B I/O Expander SPI interface

MCP23009T-E/MG
Microchip Technology
1: $1.63
6,345In Stock

Mfr. Part No.
MCP23009T-E/MG

Mouser Part No
579-MCP23009T-E/MG

Microchip Technology

Interface - I/O Expanders 8B I/O Expander SPI interface

Datasheet

Product Comments

6,345In Stock

Cut Tape

$1.63

Reel

$1.63

MouseReel Available

Min.: 1
Mult.: 1

: 3,300

SMD/SMT

QFN-16

I2C, Serial

8 I/O

With Interrupt

1.8 V

5.5 V

3.4 MHz

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

4 kV

Interface - I/O Expanders 8-bit I/O Expander I2C interface

MCP23009T-E/SS
Microchip Technology
1: $1.63
1,660In Stock

Mfr. Part No.
MCP23009T-E/SS

Mouser Part No
579-MCP23009T-E/SS

Microchip Technology

Interface - I/O Expanders 8-bit I/O Expander I2C interface

Datasheet

1,660In Stock

Cut Tape

$1.63

Reel

$1.63

MouseReel Available

Min.: 1
Mult.: 1

: 1,600

SMD/SMT

SSOP-20

I2C, Serial

8 I/O

With Interrupt

1.8 V

5.5 V

3.4 MHz

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

4 kV

Interface - I/O Expanders 16B I/O Expander I2C interface

MCP23018-E/MJ
Microchip Technology
1: $2.04
1,301In Stock
1,911Expected 17/09/2026

Mfr. Part No.
MCP23018-E/MJ

Mouser Part No
579-MCP23018-E/MJ

Microchip Technology

Interface - I/O Expanders 16B I/O Expander I2C interface

Datasheet

1,301In Stock

1,911Expected 17/09/2026

$2.04

Min.: 1
Mult.: 1

SMD/SMT

QFN-24

I2C, Serial

16 I/O

With Interrupt

1.8 V

5.5 V

3.4 MHz

- 40 C

+ 125 C

Tube

Without ESD Protection

Interface - I/O Expanders 16B I/O Expander I2C interface

MCP23018T-E/MJ
Microchip Technology
1: $2.04
6,175In Stock

Mfr. Part No.
MCP23018T-E/MJ

Mouser Part No
579-MCP23018T-E/MJ

Microchip Technology

Interface - I/O Expanders 16B I/O Expander I2C interface

Datasheet

6,175In Stock

Cut Tape

$2.04

Reel

$2.04

MouseReel Available

Min.: 1
Mult.: 1

: 3,300

SMD/SMT

QFN-24

I2C, Serial

16 I/O

With Interrupt

1.8 V

5.5 V

3.4 MHz

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

Without ESD Protection

Interface - I/O Expanders 16-bit I/O Expander I2C interface

MCP23018T-E/SS
Microchip Technology
1: $2.24
5,767In Stock

Mfr. Part No.
MCP23018T-E/SS

Mouser Part No
579-MCP23018T-E/SS

Microchip Technology

Interface - I/O Expanders 16-bit I/O Expander I2C interface

Datasheet

5,767In Stock

Cut Tape

$2.24

Reel

$2.24

MouseReel Available

Min.: 1
Mult.: 1

: 2,100

SMD/SMT

SSOP-24

I2C, Serial

16 I/O

With Interrupt

1.8 V

5.5 V

3.4 MHz

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

Without ESD Protection

Interface - I/O Expanders 8bit Input/Output Exp SPI interface

MCP23S08-E/ML
Microchip Technology
1: $1.65
5,811In Stock

Mfr. Part No.
MCP23S08-E/ML

Mouser Part No
579-MCP23S08-E/ML

Microchip Technology

Interface - I/O Expanders 8bit Input/Output Exp SPI interface

Datasheet

5,811In Stock

$1.65

Min.: 1
Mult.: 1

SMD/SMT

QFN-20

Serial, SPI

8 I/O

With Interrupt

1.8 V

5.5 V

10 MHz

- 40 C

+ 125 C

Tube

Without ESD Protection

Interface - I/O Expanders In/Out SPI int

MCP23S08-E/SS
Microchip Technology
1: $1.55
4,633In Stock
4,498Expected 12/08/2026

Mfr. Part No.
MCP23S08-E/SS

Mouser Part No
579-MCP23S08-E/SS

Microchip Technology

Interface - I/O Expanders In/Out SPI int

Datasheet

4,633In Stock

4,498Expected 12/08/2026

$1.55

Min.: 1
Mult.: 1

SMD/SMT

SSOP-20

Serial, SPI

8 I/O

With Interrupt

1.8 V

5.5 V

10 MHz

- 40 C

+ 125 C

Tube

Without ESD Protection

Interface - I/O Expanders 8bit Input/Output Exp SPI interface

MCP23S08T-E/ML
Microchip Technology
1: $1.65
3,488In Stock

Mfr. Part No.
MCP23S08T-E/ML

Mouser Part No
579-MCP23S08T-E/ML

Microchip Technology

Interface - I/O Expanders 8bit Input/Output Exp SPI interface

Datasheet

3,488In Stock

Cut Tape

$1.65

Reel

$1.65

MouseReel Available

Min.: 1
Mult.: 1

: 3,300

SMD/SMT

QFN-20

Serial, SPI

8 I/O

With Interrupt

1.8 V

5.5 V

10 MHz

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

Without ESD Protection

Interface - I/O Expanders 8B I/O Expander SPI interface

MCP23S09-E/MG
Microchip Technology
1: $1.70
10,830In Stock

Mfr. Part No.
MCP23S09-E/MG

Mouser Part No
579-MCP23S09-E/MG

Microchip Technology

Interface - I/O Expanders 8B I/O Expander SPI interface

Datasheet

Product Comments

10,830In Stock

$1.70

Min.: 1
Mult.: 1

SMD/SMT

QFN-16

Serial, SPI

8 I/O

With Interrupt

1.8 V

5.5 V

10 MHz

- 40 C

+ 125 C

Tube

4 kV

Interface - I/O Expanders 8B I/O Expander SPI interface

MCP23S09T-E/MG
Microchip Technology
1: $1.70
2,753In Stock

Mfr. Part No.
MCP23S09T-E/MG

Mouser Part No
579-MCP23S09T-E/MG

Microchip Technology

Interface - I/O Expanders 8B I/O Expander SPI interface

Datasheet

Product Comments

2,753In Stock

Cut Tape

$1.70

Reel

$1.70

MouseReel Available

Min.: 1
Mult.: 1

: 3,300

SMD/SMT

QFN-16

Serial, SPI

8 I/O

With Interrupt

1.8 V

5.5 V

10 MHz

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

4 kV

Interface - I/O Expanders 8-bit I/O Expander SPI interface

MCP23S09T-E/SO
Microchip Technology
1: $1.70
2,088In Stock

Mfr. Part No.
MCP23S09T-E/SO

Mouser Part No
579-MCP23S09T-E/SO

Microchip Technology

Interface - I/O Expanders 8-bit I/O Expander SPI interface

Datasheet

2,088In Stock

Cut Tape

$1.70

Reel

$1.70

MouseReel Available

Min.: 1
Mult.: 1

: 1,100

SMD/SMT

SOIC-18

Serial, SPI

8 I/O

With Interrupt

1.8 V

5.5 V

10 MHz

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

4 kV

Interface - I/O Expanders 16bit Input/Output Exp SPI interface

MCP23S17-E/ML
Microchip Technology
1: $2.04
5,261In Stock

Mfr. Part No.
MCP23S17-E/ML

Mouser Part No
579-MCP23S17-E/ML

Microchip Technology

Interface - I/O Expanders 16bit Input/Output Exp SPI interface

Learn More

Datasheet

5,261In Stock

$2.04

Min.: 1
Mult.: 1

MCP23S17

SMD/SMT

QFN-28

Serial, SPI

16 I/O

With Interrupt

1.8 V

5.5 V

10 MHz

- 40 C

+ 125 C

Tube

4 kV

Interface - I/O Expanders 16B I/O Expander SPI interface

MCP23S18-E/MJ
Microchip Technology
1: $2.15
6,333In Stock

Mfr. Part No.
MCP23S18-E/MJ

Mouser Part No
579-MCP23S18-E/MJ

Microchip Technology

Interface - I/O Expanders 16B I/O Expander SPI interface

Datasheet

6,333In Stock

$2.15

Min.: 1
Mult.: 1

SMD/SMT

QFN-24

Serial, SPI

16 I/O

With Interrupt

1.8 V

5.5 V

10 MHz

- 40 C

+ 125 C

Tube

Without ESD Protection

Interface - I/O Expanders 16B I/O Expander SPI interface

MCP23S18-E/SO
Microchip Technology
1: $2.15
915In Stock

Mfr. Part No.
MCP23S18-E/SO

Mouser Part No
579-MCP23S18-E/SO

Microchip Technology

Interface - I/O Expanders 16B I/O Expander SPI interface

Datasheet

915In Stock

$2.15

Min.: 1
Mult.: 1

SMD/SMT

SOIC-28

Serial, SPI

16 I/O

With Interrupt

1.8 V

5.5 V

10 MHz

- 40 C

+ 125 C

Tube

Without ESD Protection

Interface - I/O Expanders 16B I/O Expander SPI interface

MCP23S18T-E/MJ
Microchip Technology
1: $2.15
3,694In Stock

Mfr. Part No.
MCP23S18T-E/MJ

Mouser Part No
579-MCP23S18T-E/MJ

Microchip Technology

Interface - I/O Expanders 16B I/O Expander SPI interface

Datasheet

3,694In Stock

Cut Tape

$2.15

Reel

$2.15

MouseReel Available

Min.: 1
Mult.: 1

: 3,300

MCP23S18

SMD/SMT

QFN-24

Serial, SPI

16 I/O

With Interrupt

1.8 V

5.5 V

10 MHz

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

Without ESD Protection

Interface - I/O Expanders 16B I/O Expander SPI interface

MCP23S18T-E/SO
Microchip Technology
1: $2.15
1,201In Stock

Mfr. Part No.
MCP23S18T-E/SO

Mouser Part No
579-MCP23S18T-E/SO

Microchip Technology

Interface - I/O Expanders 16B I/O Expander SPI interface

Datasheet

1,201In Stock

Cut Tape

$2.15

Reel

$2.15

MouseReel Available

Min.: 1
Mult.: 1

: 1,600

SMD/SMT

SOIC-28

Serial, SPI

16 I/O

With Interrupt

1.8 V

5.5 V

10 MHz

- 40 C

+ 125 C

Reel, Cut Tape, MouseReel

Without ESD Protection

Microchip Technology Interface - I/O Expanders

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