.hide-partial { max-height: none; } .show-more { display: none; }

Microchip Interface - I/O Expanders

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 80

Applied Filters:

Manufacturer = Microchip

Series

Mounting Style

Package/Case

Interface Type

Number of I/Os

Interrupt Output

Supply Voltage - Min

Supply Voltage - Max

Maximum Clock Frequency

Minimum Operating Temperature

Maximum Operating Temperature

Qualification

Packaging

ESD Protection

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

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

MCP23S09-E/SO
Microchip Technology
1: $2.25
1,143In Stock

Mfr. Part No.
MCP23S09-E/SO

Mouser Part No
579-MCP23S09-E/SO

Microchip Technology

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

Datasheet

1,143In Stock

$2.25

$1.88

$1.72

Min.: 1
Mult.: 1

SMD/SMT

SOIC-18

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 8-bit I/O Expander SPI interface

MCP23S09T-E/SO
Microchip Technology
1: $2.36
2,592In 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

2,592In Stock

Cut Tape

$2.36

$1.99

$1.79

Reel

$1.79

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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 In/Out I2C int

MCP23008-E/P
Microchip Technology
1: $2.14
308In Stock
1,100Expected 16/2/2026

Mfr. Part No.
MCP23008-E/P

Mouser Part No
579-MCP23008-E/P

Microchip Technology

Interface - I/O Expanders In/Out I2C int

Datasheet

308In Stock

1,100Expected 16/2/2026

$2.14

$1.78

$1.75

Min.: 1
Mult.: 1

Through Hole

PDIP-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

MCP23008T-E/SS
Microchip Technology
1: $2.07
260In Stock
6,060Expected 26/2/2026

Mfr. Part No.
MCP23008T-E/SS

Mouser Part No
579-MCP23008T-E/SS

Microchip Technology

Interface - I/O Expanders In/Out I2C int

Datasheet

260In Stock

6,060Expected 26/2/2026

Cut Tape

$2.07

$1.74

$1.57

Reel

$1.57

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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/P
Microchip Technology
1: $2.21
30In Stock

Mfr. Part No.
MCP23009-E/P

Mouser Part No
579-MCP23009-E/P

Microchip Technology

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

Datasheet

30In Stock

$2.21

$1.83

$1.70

Min.: 1
Mult.: 1

Through Hole

PDIP-18

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 8-bit I/O Expander I2C interface

MCP23009-E/SO
Microchip Technology
1: $2.11
224In Stock

Mfr. Part No.
MCP23009-E/SO

Mouser Part No
579-MCP23009-E/SO

Microchip Technology

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

Datasheet

224In Stock

$2.11

$1.77

$1.60

Min.: 1
Mult.: 1

SMD/SMT

SOIC-18

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 8-bit I/O Expander I2C interface

MCP23009T-E/SS
Microchip Technology
1: $2.27
593In 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

593In Stock

Cut Tape

$2.27

$1.88

$1.70

Reel

$1.70

MouseReel Available

Min.: 1
Mult.: 1

Reel: 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 16 bit In/Out

MCP23016-I/SP
Microchip Technology
1: $3.11
266In Stock

Mfr. Part No.
MCP23016-I/SP

Mouser Part No
579-MCP23016-I/SP

Microchip Technology

Interface - I/O Expanders 16 bit In/Out

Datasheet

266In Stock

$3.11

$2.59

$2.56

Min.: 1
Mult.: 1

Through Hole

SPDIP-28

I2C, Serial

16 I/O

With Interrupt

2 V

5.5 V

400 kHz

- 40 C

+ 85 C

Tube

Without ESD Protection

Interface - I/O Expanders 16 bit In/Out

MCP23016T-I/ML
Microchip Technology
1: $3.16
316In Stock

Mfr. Part No.
MCP23016T-I/ML

Mouser Part No
579-MCP23016T-I/ML

Microchip Technology

Interface - I/O Expanders 16 bit In/Out

Datasheet

316In Stock

Cut Tape

$3.16

$2.64

$2.61

Reel

$2.61

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,600

SMD/SMT

QFN-28

I2C, Serial

16 I/O

With Interrupt

5.5 V

400 kHz

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Without ESD Protection

Interface - I/O Expanders 16 bit In/Out

MCP23016T-I/SO
Microchip Technology
1: $2.96
453In Stock

Mfr. Part No.
MCP23016T-I/SO

Mouser Part No
579-MCP23016T-I/SO

Microchip Technology

Interface - I/O Expanders 16 bit In/Out

Datasheet

453In Stock

Cut Tape

$2.96

$2.47

$2.43

Reel

$2.43

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,600

SMD/SMT

SOIC-28

I2C, Serial

16 I/O

With Interrupt

5.5 V

400 kHz

- 40 C

+ 85 C

Reel, Cut Tape, MouseReel

Without ESD Protection

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

MCP23018-E/SO
Microchip Technology
1: $2.84
354In Stock

Mfr. Part No.
MCP23018-E/SO

Mouser Part No
579-MCP23018-E/SO

Microchip Technology

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

Datasheet

354In Stock

$2.84

$2.35

$2.14

Min.: 1
Mult.: 1

SMD/SMT

SOIC-28

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

MCP23018-E/SP
Microchip Technology
1: $2.96
333In Stock

Mfr. Part No.
MCP23018-E/SP

Mouser Part No
579-MCP23018-E/SP

Microchip Technology

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

Datasheet

333In Stock

$2.96

$2.47

$2.24

Min.: 1
Mult.: 1

Through Hole

SPDIP-28

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 Digital CAN I/O

MCP25020-I/P
Microchip Technology
1: $5.30
122In Stock

Mfr. Part No.
MCP25020-I/P

Mouser Part No
579-MCP25020-I/P

Microchip Technology

Interface - I/O Expanders Digital CAN I/O

Datasheet

122In Stock

$5.30

$4.42

$4.38

Min.: 1
Mult.: 1

Through Hole

PDIP-14

CAN

8 I/O

Without Interrupt

2.75 V

5.5 V

25 MHz

- 65 C

+ 150 C

Tube

3.5 kV

Interface - I/O Expanders Mixed signal Expandr

MCP25050-E/P
Microchip Technology
1: $8.44
89In Stock

Mfr. Part No.
MCP25050-E/P

Mouser Part No
579-MCP25050-E/P

Microchip Technology

Interface - I/O Expanders Mixed signal Expandr

Datasheet

89In Stock

$8.44

$7.05

$6.98

Min.: 1
Mult.: 1

Through Hole

PDIP-14

CAN

8 I/O

Without Interrupt

5.5 V

25 MHz

- 65 C

+ 150 C

Tube

3.5 kV

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

MCP23S09-E/P
Microchip Technology
1: $2.35
211In Stock

Mfr. Part No.
MCP23S09-E/P

Mouser Part No
579-MCP23S09-E/P

Microchip Technology

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

Datasheet

211In Stock

$2.35

$1.95

$1.78

Min.: 1
Mult.: 1

Through Hole

PDIP-18

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 16-Bit, Open Drain I/O Expander with I2C Interface

MCP23S18T-E/MJVAO
Microchip Technology
1: $2.99
428In Stock
Factory Special Order

Mfr. Part No.
MCP23S18T-E/MJVAO

Mouser Part No
579-MCP23S18T-EMJVAO

Factory Special Order

Microchip Technology

Interface - I/O Expanders 16-Bit, Open Drain I/O Expander with I2C Interface

Datasheet

428In Stock

Cut Tape

$2.99

$2.50

$2.47

Reel

View

Min.: 1
Mult.: 1

Reel: 3,300

SMD/SMT

QFN-24

Serial, SPI

16 I/O

With Interrupt

1.8 V

5.5 V

10 MHz

- 40 C

+ 125 C

AEC-Q100

Reel, Cut Tape

Without ESD Protection

Interface - I/O Expanders Digital CAN I/O

MCP25020-I/SL
Microchip Technology
1: $5.06
228Expected 13/2/2026

Mfr. Part No.
MCP25020-I/SL

Mouser Part No
579-MCP25020-I/SL

Microchip Technology

Interface - I/O Expanders Digital CAN I/O

Datasheet

228Expected 13/2/2026

$5.06

$4.21

$4.17

Min.: 1
Mult.: 1

SMD/SMT

SOIC-14

CAN

8 I/O

Without Interrupt

2.75 V

5.5 V

25 MHz

- 40 C

+ 85 C

Tube

3.5 kV

Interface - I/O Expanders 16 bit In/Out

MCP23016T-I/SS
Microchip Technology
2,100: $2.61
Non-Stocked Lead-Time 6 Weeks

Mfr. Part No.
MCP23016T-I/SS

Mouser Part No
579-MCP23016T-I/SS

Microchip Technology

Interface - I/O Expanders 16 bit In/Out

Datasheet

Non-Stocked Lead-Time 6 Weeks

Reel

$2.61

Min.: 2,100
Mult.: 2,100

Reel: 2,100

SMD/SMT

SSOP-28

I2C, Serial

16 I/O

With Interrupt

5.5 V

400 kHz

- 40 C

+ 85 C

Reel

Without ESD Protection

Interface - I/O Expanders Digital CAN I/O

MCP25020-E/P
Microchip Technology
1: $5.96
Non-Stocked Lead-Time 6 Weeks

Mfr. Part No.
MCP25020-E/P

Mouser Part No
579-MCP25020-E/P

Microchip Technology

Interface - I/O Expanders Digital CAN I/O

Datasheet

Non-Stocked Lead-Time 6 Weeks

$5.96

$4.96

$4.52

Min.: 1
Mult.: 1

Through Hole

PDIP-14

5.5 V

- 65 C

+ 150 C

Tube

Interface - I/O Expanders Digital CAN I/O

MCP25020-E/SL
Microchip Technology
1: $6.12
Non-Stocked Lead-Time 6 Weeks

Mfr. Part No.
MCP25020-E/SL

Mouser Part No
579-MCP25020-E/SL

Microchip Technology

Interface - I/O Expanders Digital CAN I/O

Datasheet

Non-Stocked Lead-Time 6 Weeks

$6.12

$5.13

$5.06

Min.: 1
Mult.: 1

SMD/SMT

SOIC-14

5.5 V

- 65 C

+ 150 C

Tube

Interface - I/O Expanders Digital CAN I/O

MCP25020T-E/SL
Microchip Technology
2,600: $4.52
Non-Stocked Lead-Time 6 Weeks

Mfr. Part No.
MCP25020T-E/SL

Mouser Part No
579-MCP25020T-E/SL

Microchip Technology

Interface - I/O Expanders Digital CAN I/O

Datasheet

Non-Stocked Lead-Time 6 Weeks

Reel

$4.52

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

Reel: 2,600

SMD/SMT

SOIC-14

5.5 V

- 65 C

+ 150 C

Reel

Interface - I/O Expanders Digital CAN I/O

MCP25020T-I/SL
Microchip Technology
2,600: $4.17
Non-Stocked Lead-Time 6 Weeks

Mfr. Part No.
MCP25020T-I/SL

Mouser Part No
579-MCP25020T-I/SL

Microchip Technology

Interface - I/O Expanders Digital CAN I/O

Datasheet

Non-Stocked Lead-Time 6 Weeks

Reel

$4.17

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

Reel: 2,600

SMD/SMT

SOIC-14

5.5 V

- 65 C

+ 150 C

Reel

Interface - I/O Expanders Digital 1 Wire capab

MCP25025-I/P
Microchip Technology
1: $6.02
Non-Stocked Lead-Time 4 Weeks

Mfr. Part No.
MCP25025-I/P

Mouser Part No
579-MCP25025-I/P

Microchip Technology

Interface - I/O Expanders Digital 1 Wire capab

Datasheet

Non-Stocked Lead-Time 4 Weeks

$6.02

$5.03

$4.98

Min.: 1
Mult.: 1

Through Hole

PDIP-14

CAN

8 I/O

Without Interrupt

2.7 V

5.5 V

4 MHz

- 65 C

+ 150 C

Tube

3.5 kV

Interface - I/O Expanders Digital 1 Wire capab

MCP25025T-I/SL
Microchip Technology
2,600: $4.52
Non-Stocked Lead-Time 6 Weeks

Mfr. Part No.
MCP25025T-I/SL

Mouser Part No
579-MCP25025T-I/SL

Microchip Technology

Interface - I/O Expanders Digital 1 Wire capab

Datasheet

Non-Stocked Lead-Time 6 Weeks

Reel

$4.52

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

Reel: 2,600

SMD/SMT

SOIC-14

5.5 V

- 65 C

+ 150 C

Reel

Interface - I/O Expanders Mixed signal Expandr

MCP25050T-E/SL
Microchip Technology
2,600: $6.12
Non-Stocked Lead-Time 6 Weeks

Mfr. Part No.
MCP25050T-E/SL

Mouser Part No
579-MCP25050T-E/SL

Microchip Technology

Interface - I/O Expanders Mixed signal Expandr

Datasheet

Non-Stocked Lead-Time 6 Weeks

Reel

$6.12

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

Reel: 2,600

SMD/SMT

SOIC-14

5.5 V

- 65 C

+ 150 C

Reel

Microchip Interface - I/O Expanders

Customer Service Office

Company

Resources

Support