Semiconductors – Mouser United Kingdom

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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: £1.20
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

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Datasheet

3,341In Stock

Cut Tape

£1.20

£0.917

£0.803

£0.706

Reel

£0.598

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

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: £1.31
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

£1.31

£1.00

£0.871

£0.773

View

Reel

£0.65

MouseReel Available

Min.: 1
Mult.: 1

: 6,000

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: £1.14
58,681In 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

58,681In Stock

Cut Tape

£1.14

£0.834

£0.759

£0.671

View

Reel

£0.55

MouseReel Available

Min.: 1
Mult.: 1

: 6,000

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: £1.14
52,896In 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

52,896In Stock

Cut Tape

£1.14

£0.834

£0.759

£0.671

Reel

£0.56

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

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: £1.31
19,354In 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

19,354In Stock

Cut Tape

£1.31

£0.978

£0.882

£0.796

View

Reel

£0.665

MouseReel Available

Min.: 1
Mult.: 1

: 6,000

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

PCA9555AHF,128
NXP Semiconductors
1: £1.50
28,611In Stock
24,000Expected 06/10/2026

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 06/10/2026

Cut Tape

£1.50

£1.15

£1.00

£0.899

View

Reel

£0.78

MouseReel Available

Min.: 1
Mult.: 1

: 6,000

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: £1.20
98,756In 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

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Datasheet

98,756In Stock

Cut Tape

£1.20

£0.882

£0.788

£0.703

View

Reel

£0.575

MouseReel Available

Min.: 1
Mult.: 1

: 6,000

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: £1.89
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

£1.89

£1.41

£1.28

£1.16

View

Reel

£0.995

MouseReel Available

Min.: 1
Mult.: 1

: 6,000

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

PCA9538ABSHP
NXP Semiconductors
1: £1.37
10,214In Stock
30,000On 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

10,214In Stock

30,000On Order

Cut Tape

£1.37

£1.01

£0.925

£0.818

View

Reel

£0.677

MouseReel Available

Min.: 1
Mult.: 1

: 6,000

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

PCA9538APWJ
NXP Semiconductors
1: £1.37
2,662In Stock
5,000Expected 08/10/2026

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

2,662In Stock

5,000Expected 08/10/2026

Cut Tape

£1.37

£1.01

£0.925

£0.818

Reel

£0.691

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

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: £1.25
584In Stock
6,000Expected 27/08/2026

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

584In Stock

6,000Expected 27/08/2026

Cut Tape

£1.25

£0.917

£0.834

£0.735

View

Reel

£0.58

MouseReel Available

Min.: 1
Mult.: 1

: 6,000

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: £1.10
611In 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

611In Stock

15,000On Order

Cut Tape

£1.10

£0.834

£0.731

£0.648

View

Reel

£0.527

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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: £0.995
9,817In 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

9,817In Stock

96,000On Order

Cut Tape

£0.995

£0.718

£0.65

£0.576

View

Reel

£0.477

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

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: £1.23
1,901In Stock
6,000Expected 07/10/2026

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

1,901In Stock

6,000Expected 07/10/2026

Cut Tape

£1.23

£0.908

£0.826

£0.729

View

Reel

£0.589

MouseReel Available

Min.: 1
Mult.: 1

: 6,000

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: £1.08
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

£1.08

£0.796

£0.709

£0.628

Reel

£0.528

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

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: £1.37
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

£1.37

£1.00

£0.917

£0.818

Reel

£0.689

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

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

PCA9509PGM,125
NXP Semiconductors
1: £0.803
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

£0.803

£0.579

£0.523

£0.461

View

Reel

£0.379

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

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: £1.57
11,204In 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

11,204In Stock

Cut Tape

£1.57

£1.15

£1.06

£0.943

View

Reel

£0.803

MouseReel Available

Min.: 1
Mult.: 1

: 6,000

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: £1.56
6,203In Stock
12,500Expected 08/02/2027

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

6,203In Stock

12,500Expected 08/02/2027

Cut Tape

£1.56

£1.15

£1.05

£0.943

Reel

£0.803

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

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

PCA9539AHF,128
NXP Semiconductors
1: £1.53
11,807In Stock
12,000Expected 12/10/2026

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

11,807In Stock

12,000Expected 12/10/2026

Cut Tape

£1.53

£1.15

£1.03

£0.943

View

Reel

£0.788

MouseReel Available

Min.: 1
Mult.: 1

: 6,000

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: £1.80
110In Stock
30,000Expected 06/10/2026

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 06/10/2026

Cut Tape

£1.80

£1.44

£1.32

£1.18

View

Reel

£0.995

MouseReel Available

Min.: 1
Mult.: 1

: 6,000

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: £1.53
9,031In Stock
18,000Expected 12/10/2026

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

9,031In Stock

18,000Expected 12/10/2026

Cut Tape

£1.53

£1.13

£1.04

£0.925

View

Reel

£0.773

MouseReel Available

Min.: 1
Mult.: 1

: 6,000

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: £1.05
651In Stock
6,000Expected 14/10/2026

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 14/10/2026

Cut Tape

£1.05

£0.759

£0.686

£0.608

View

Reel

£0.494

MouseReel Available

Min.: 1
Mult.: 1

: 6,000

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: £2.00
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

£2.00

£1.48

£1.36

£1.21

View

Reel

£0.986

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

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: £1.89
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

£1.89

£1.41

£1.28

£1.17

View

Reel

£0.995

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

I2C General Purpose I/O Expanders

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