Interface ICs – Mouser Liechtenstein

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I2C General Purpose I/O Expanders

NXP Semiconductors I²C General Purpose I/O Expanders provide GPIO expansion for most microprocessor families, allowing designers to save the GPIOs on microprocessors for other important functions. Designers can utilize the microprocessor GPIOs for important functions and use the I/O expander for other duties, including system monitoring, ACPI power switches, sensors, push buttons, LEDs, fans, and more. NXP GPIO expanders are ideal for adding fan and LED control to systems. They are also ideal for monitoring system functions and accepting push-button inputs.

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Part #

Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554B in TSSOP16 package

PCA9554CPWJ
NXP Semiconductors
1: CHF 1.29
3’341In Stock

Mfr. Part No.
PCA9554CPWJ

Mouser Part No
771-PCA9554CPWJ

NXP Semiconductors

Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554B in TSSOP16 package

Learn More

Datasheet

3’341In Stock

Cut Tape

CHF 1.29

CHF 0.983

CHF 0.861

CHF 0.757

Reel

CHF 0.641

View

MouseReel Available

Min.: 1
Mult.: 1

: 2’500

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

TSSOP-16

Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in VFBGA24 package

PCA6416AEVJ
NXP Semiconductors
1: CHF 1.40
4’828In Stock

Mfr. Part No.
PCA6416AEVJ

Mouser Part No
771-PCA6416AEVJ

NXP Semiconductors

Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in VFBGA24 package

Learn More

Datasheet

4’828In Stock

Cut Tape

CHF 1.40

CHF 1.08

CHF 0.934

CHF 0.829

View

Reel

CHF 0.697

MouseReel Available

Min.: 1
Mult.: 1

: 6’000

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

VFBGA-24

Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in HWQFN24 package

PCA6416AHF,128
NXP Semiconductors
1: CHF 1.40
19’143In Stock

Mfr. Part No.
PCA6416AHF,128

Mouser Part No
771-PCA6416AHF,128

NXP Semiconductors

Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in HWQFN24 package

Learn More

Datasheet

19’143In Stock

Cut Tape

CHF 1.40

CHF 1.05

CHF 0.945

CHF 0.854

View

Reel

CHF 0.713

MouseReel Available

Min.: 1
Mult.: 1

: 6’000

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

HWQFN-24

Interface - I/O Expanders 8-bit I2C-bus I/O Expander with Interrupt and Reset in HVQFN16 package

PCA9538ABSHP
NXP Semiconductors
1: CHF 1.47
19’214In Stock
21’000On Order

Mfr. Part No.
PCA9538ABSHP

Mouser Part No
771-PCA9538ABSHP

NXP Semiconductors

Interface - I/O Expanders 8-bit I2C-bus I/O Expander with Interrupt and Reset in HVQFN16 package

Learn More

Datasheet

19’214In Stock

21’000On Order

Cut Tape

CHF 1.47

CHF 1.09

CHF 0.992

CHF 0.877

View

Reel

CHF 0.726

MouseReel Available

Min.: 1
Mult.: 1

: 6’000

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

HVQFN-16

Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt in HWQFN24 package

PCA9555AHF,128
NXP Semiconductors
1: CHF 1.61
28’611In Stock
24’000Expected 10/6/2026

Mfr. Part No.
PCA9555AHF,128

Mouser Part No
771-PCA9555AHF,128

NXP Semiconductors

Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt in HWQFN24 package

Learn More

Datasheet

28’611In Stock

24’000Expected 10/6/2026

Cut Tape

CHF 1.61

CHF 1.24

CHF 1.08

CHF 0.964

View

Reel

CHF 0.837

MouseReel Available

Min.: 1
Mult.: 1

: 6’000

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

HWQFN-24

Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in HVQFN16 package

PCAL6408ABSHP
NXP Semiconductors
1: CHF 1.23
58’562In Stock

Mfr. Part No.
PCAL6408ABSHP

Mouser Part No
771-PCAL6408ABSHP

NXP Semiconductors

Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in HVQFN16 package

Learn More

Datasheet

58’562In Stock

Cut Tape

CHF 1.23

CHF 0.894

CHF 0.813

CHF 0.72

View

Reel

CHF 0.59

MouseReel Available

Min.: 1
Mult.: 1

: 6’000

I/O Expanders

General Purpose

I2C, Serial, SMBus

SMD/SMT

HVQFN-16

Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in TSSOP16 package

PCAL6408APWJ
NXP Semiconductors
1: CHF 1.23
52’879In Stock

Mfr. Part No.
PCAL6408APWJ

Mouser Part No
771-PCAL6408APWJ

NXP Semiconductors

Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in TSSOP16 package

Learn More

Datasheet

52’879In Stock

Cut Tape

CHF 1.23

CHF 0.894

CHF 0.813

CHF 0.72

Reel

CHF 0.601

View

MouseReel Available

Min.: 1
Mult.: 1

: 2’500

I/O Expanders

General Purpose

I2C, Serial, SMBus

SMD/SMT

TSSOP-16

Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in HWQFN24 package

PCAL6416AHF,128
NXP Semiconductors
1: CHF 1.28
97’414In Stock

Mfr. Part No.
PCAL6416AHF,128

Mouser Part No
771-PCAL6416AHF,128

NXP Semiconductors

Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in HWQFN24 package

Learn More

Datasheet

97’414In Stock

Cut Tape

CHF 1.28

CHF 0.945

CHF 0.845

CHF 0.753

View

Reel

CHF 0.629

MouseReel Available

Min.: 1
Mult.: 1

: 6’000

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

HWQFN-24

Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Reset and Agile I/O in HWQFN24 package

PCAL9539AHF,128
NXP Semiconductors
1: CHF 2.03
16’847In Stock

Mfr. Part No.
PCAL9539AHF,128

Mouser Part No
771-PCAL9539AHF,128

NXP Semiconductors

Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Reset and Agile I/O in HWQFN24 package

Learn More

Datasheet

16’847In Stock

Cut Tape

CHF 2.03

CHF 1.51

CHF 1.38

CHF 1.24

View

Reel

CHF 1.07

MouseReel Available

Min.: 1
Mult.: 1

: 6’000

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

HWQFN-24

Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in TSSOP16 package

PCA6408APW,118
NXP Semiconductors
1: CHF 1.16
2’669In Stock

Mfr. Part No.
PCA6408APW,118

Mouser Part No
771-PCA6408APW,118

NXP Semiconductors

Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in TSSOP16 package

Learn More

Datasheet

2’669In Stock

Cut Tape

CHF 1.16

CHF 0.854

CHF 0.76

CHF 0.673

Reel

CHF 0.566

View

MouseReel Available

Min.: 1
Mult.: 1

: 2’500

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

TSSOP-16

Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in TSSOP24 package

PCA6416APW,118
NXP Semiconductors
1: CHF 1.47
5’101In Stock

Mfr. Part No.
PCA6416APW,118

Mouser Part No
771-PCA6416APW118

NXP Semiconductors

Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in TSSOP24 package

Learn More

Datasheet

5’101In Stock

Cut Tape

CHF 1.47

CHF 1.08

CHF 0.983

CHF 0.877

Reel

CHF 0.739

View

MouseReel Available

Min.: 1
Mult.: 1

: 2’500

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

TSSOP-24

Interface - Signal Buffers, Repeaters Dual Supply Low power level translating I2C-bus/SMBus repeater

PCA9509PGM,125
NXP Semiconductors
1: CHF 0.861
5’700In Stock

Mfr. Part No.
PCA9509PGM,125

Mouser Part No
771-PCA9509PGM,125

NXP Semiconductors

Interface - Signal Buffers, Repeaters Dual Supply Low power level translating I2C-bus/SMBus repeater

Learn More

Datasheet

5’700In Stock

Cut Tape

CHF 0.861

CHF 0.621

CHF 0.561

CHF 0.494

View

Reel

CHF 0.406

MouseReel Available

Min.: 1
Mult.: 1

: 4’000

Signal Buffers, Repeaters

Repeaters

I2C, SMBus

SMD/SMT

XQFN-8

Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt, Low Voltage version of PCA9535 in HWQFN24 package

PCA9535AHF,128
NXP Semiconductors
1: CHF 1.68
11’404In Stock

Mfr. Part No.
PCA9535AHF,128

Mouser Part No
771-PCA9535AHF,128

NXP Semiconductors

Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt, Low Voltage version of PCA9535 in HWQFN24 package

Learn More

Datasheet

11’404In Stock

Cut Tape

CHF 1.68

CHF 1.24

CHF 1.13

CHF 1.01

View

Reel

CHF 0.861

MouseReel Available

Min.: 1
Mult.: 1

: 6’000

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

HWQFN-24

Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt, Low Voltage version of PCA9535 in TSSOP24 package

PCA9535APW,118
NXP Semiconductors
1: CHF 1.68
5’876In Stock
12’500Expected 11/16/2026

Mfr. Part No.
PCA9535APW,118

Mouser Part No
771-PCA9535APW,118

NXP Semiconductors

Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt, Low Voltage version of PCA9535 in TSSOP24 package

Learn More

Datasheet

5’876In Stock

12’500Expected 11/16/2026

Cut Tape

CHF 1.68

CHF 1.24

CHF 1.12

CHF 1.01

Reel

CHF 0.861

View

MouseReel Available

Min.: 1
Mult.: 1

: 2’500

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

TSSOP-24

Interface - I/O Expanders 8-bit I2C-bus I/O Expander with Interrupt and Reset in TSSOP16 package

PCA9538APWJ
NXP Semiconductors
1: CHF 1.47
2’657In Stock
5’000Expected 10/8/2026

Mfr. Part No.
PCA9538APWJ

Mouser Part No
771-PCA9538APWJ

NXP Semiconductors

Interface - I/O Expanders 8-bit I2C-bus I/O Expander with Interrupt and Reset in TSSOP16 package

Learn More

Datasheet

2’657In Stock

5’000Expected 10/8/2026

Cut Tape

CHF 1.47

CHF 1.09

CHF 0.992

CHF 0.877

Reel

CHF 0.741

View

MouseReel Available

Min.: 1
Mult.: 1

: 2’500

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

TSSOP-16

Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Reset in HWQFN24 package

PCA9539AHF,128
NXP Semiconductors
1: CHF 1.63
10’781In Stock
12’000Expected 10/12/2026

Mfr. Part No.
PCA9539AHF,128

Mouser Part No
771-PCA9539AHF,128

NXP Semiconductors

Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Reset in HWQFN24 package

Learn More

Datasheet

10’781In Stock

12’000Expected 10/12/2026

Cut Tape

CHF 1.63

CHF 1.24

CHF 1.10

CHF 0.973

View

Reel

CHF 0.845

MouseReel Available

Min.: 1
Mult.: 1

: 6’000

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

HWQFN-24

Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in XQFN16 package

PCAL6408AHKX
NXP Semiconductors
1: CHF 1.07
3’093In Stock
96’000On Order

Mfr. Part No.
PCAL6408AHKX

Mouser Part No
771-PCAL6408AHKX

NXP Semiconductors

Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in XQFN16 package

Learn More

Datasheet

3’093In Stock

96’000On Order

Cut Tape

CHF 1.07

CHF 0.769

CHF 0.697

CHF 0.618

View

Reel

CHF 0.511

MouseReel Available

Min.: 1
Mult.: 1

: 4’000

I/O Expanders

General Purpose

I2C, Serial, SMBus

SMD/SMT

XQFN-16

Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Agile I/O in HWQFN24 package

PCAL9555AHF,128
NXP Semiconductors
1: CHF 1.64
8’883In Stock
18’000Expected 10/12/2026

Mfr. Part No.
PCAL9555AHF,128

Mouser Part No
771-PCAL9555AHF,128

NXP Semiconductors

Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Agile I/O in HWQFN24 package

Learn More

Datasheet

8’883In Stock

18’000Expected 10/12/2026

Cut Tape

CHF 1.64

CHF 1.22

CHF 1.11

CHF 0.992

View

Reel

CHF 0.829

MouseReel Available

Min.: 1
Mult.: 1

: 6’000

I/O Expanders

I/O Expander

I2C, Serial

SMD/SMT

HWQFN-24

Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in HVQFN16 package

PCA6408ABSHP
NXP Semiconductors
1: CHF 1.12
651In Stock
6’000Expected 10/14/2026

Mfr. Part No.
PCA6408ABSHP

Mouser Part No
771-PCA6408ABSHP

NXP Semiconductors

Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in HVQFN16 package

Learn More

Datasheet

651In Stock

6’000Expected 10/14/2026

Cut Tape

CHF 1.12

CHF 0.813

CHF 0.736

CHF 0.652

View

Reel

CHF 0.53

MouseReel Available

Min.: 1
Mult.: 1

: 6’000

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

HVQFN-16

Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554B in HVQFN16 package

PCA9554CBSHP
NXP Semiconductors
1: CHF 1.34
565In Stock
6’000On Order

Mfr. Part No.
PCA9554CBSHP

Mouser Part No
771-PCA9554CBSHP

NXP Semiconductors

Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554B in HVQFN16 package

Learn More

Datasheet

565In Stock

6’000On Order

Cut Tape

CHF 1.34

CHF 0.983

CHF 0.894

CHF 0.788

View

Reel

CHF 0.622

MouseReel Available

Min.: 1
Mult.: 1

: 6’000

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

HVQFN-16

Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in X2QFN16 package

PCAL6408AEX1Z
NXP Semiconductors
1: CHF 1.18
505In Stock
15’000On Order

Mfr. Part No.
PCAL6408AEX1Z

Mouser Part No
771-PCAL6408AEX1Z

NXP Semiconductors

Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in X2QFN16 package

Learn More

Datasheet

505In Stock

15’000On Order

Cut Tape

CHF 1.18

CHF 0.894

CHF 0.783

CHF 0.695

View

Reel

CHF 0.565

MouseReel Available

Min.: 1
Mult.: 1

: 5’000

I/O Expanders

General Purpose

I2C, Serial, SMBus

SMD/SMT

X2QFN-16

Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in VFBGA24 package

PCAL6416AEVJ
NXP Semiconductors
1: CHF 1.32
1’301In Stock
6’000Expected 10/7/2026

Mfr. Part No.
PCAL6416AEVJ

Mouser Part No
771-PCAL6416AEVJ

NXP Semiconductors

Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in VFBGA24 package

Learn More

Datasheet

1’301In Stock

6’000Expected 10/7/2026

Cut Tape

CHF 1.32

CHF 0.973

CHF 0.885

CHF 0.782

View

Reel

CHF 0.632

MouseReel Available

Min.: 1
Mult.: 1

: 6’000

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

VFBGA-24

Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Agile I/O in HWQFN24 package

PCAL9535AHF,128
NXP Semiconductors
1: CHF 2.14
110In Stock
30’000Expected 10/6/2026

Mfr. Part No.
PCAL9535AHF,128

Mouser Part No
771-PCAL9535AHF,128

NXP Semiconductors

Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Agile I/O in HWQFN24 package

Learn More

Datasheet

110In Stock

30’000Expected 10/6/2026

Cut Tape

CHF 2.14

CHF 1.59

CHF 1.46

CHF 1.30

View

Reel

CHF 1.06

MouseReel Available

Min.: 1
Mult.: 1

: 6’000

I/O Expanders

I/O Expander

I2C, Serial

SMD/SMT

HWQFN-24

Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Agile I/O in TSSOP24 package

PCAL9535APW,118
NXP Semiconductors
1: CHF 2.14
110In Stock
20’000On Order

Mfr. Part No.
PCAL9535APW,118

Mouser Part No
771-PCAL9535APW,118

NXP Semiconductors

Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Agile I/O in TSSOP24 package

Learn More

Datasheet

110In Stock

20’000On Order

Cut Tape

CHF 2.14

CHF 1.59

CHF 1.46

CHF 1.30

View

Reel

CHF 1.02

MouseReel Available

Min.: 1
Mult.: 1

: 2’500

I/O Expanders

I/O Expander

I2C, Serial

SMD/SMT

TSSOP-24

Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Reset and Agile I/O in TSSOP24 package

PCAL9539APW,118
NXP Semiconductors
1: CHF 2.03
110In Stock
7’500On Order

Mfr. Part No.
PCAL9539APW,118

Mouser Part No
771-PCAL9539APW118

NXP Semiconductors

Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Reset and Agile I/O in TSSOP24 package

Learn More

Datasheet

110In Stock

7’500On Order

Cut Tape

CHF 2.03

CHF 1.51

CHF 1.38

CHF 1.25

View

Reel

CHF 1.07

MouseReel Available

Min.: 1
Mult.: 1

: 2’500

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

TSSOP-24

I2C General Purpose I/O Expanders

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