Semiconductors – Mouser Singapore

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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: $2.19
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

$2.19

$1.66

$1.46

$1.28

Reel

$1.08

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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: $2.37
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

$2.37

$1.82

$1.58

$1.40

View

Reel

$1.18

MouseReel Available

Min.: 1
Mult.: 1

: 6,000

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: $2.37
19,413In 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

19,413In Stock

Cut Tape

$2.37

$1.77

$1.60

$1.44

View

Reel

$1.20

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: $2.72
28,460In Stock
24,000Expected 6/10/2026

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

28,460In Stock

24,000Expected 6/10/2026

Cut Tape

$2.72

$2.09

$1.82

$1.63

View

Reel

$1.41

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: $2.07
63,387In 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

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Datasheet

63,387In Stock

Cut Tape

$2.07

$1.51

$1.37

$1.22

View

Reel

$0.996

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: $2.07
53,050In 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

53,050In Stock

Cut Tape

$2.07

$1.51

$1.37

$1.22

Reel

$1.02

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, Reset and Agile I/O in HWQFN24 package

PCAL6416AHF,128
NXP Semiconductors
1: $2.16
68,699In Stock
31,635Expected 26/8/2026

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

68,699In Stock

31,635Expected 26/8/2026

Cut Tape

$2.16

$1.60

$1.43

$1.27

View

Reel

$1.04

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: $3.25
15,002In Stock
30,000Expected 6/10/2026

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

15,002In Stock

30,000Expected 6/10/2026

Cut Tape

$3.25

$2.61

$2.38

$2.14

View

Reel

$1.80

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: $3.50
16,979In 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

16,979In Stock

Cut Tape

$3.50

$2.58

$2.37

$2.12

View

Reel

$1.80

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: $1.93
2,691In 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

2,691In Stock

Cut Tape

$1.93

$1.40

$1.26

$1.11

Reel

$0.928

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: $2.48
6,126In 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

6,126In Stock

Cut Tape

$2.48

$1.82

$1.66

$1.48

Reel

$1.25

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: $1.46
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

$1.46

$1.05

$0.947

$0.835

View

Reel

$0.687

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: $2.84
12,310In 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

12,310In Stock

Cut Tape

$2.84

$2.09

$1.92

$1.71

View

Reel

$1.46

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: $2.83
6,713In Stock
12,500Expected 1/3/2027

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

6,713In Stock

12,500Expected 1/3/2027

Cut Tape

$2.83

$2.09

$1.90

$1.70

Reel

$1.46

View

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

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

PCA9538ABSHP
NXP Semiconductors
1: $2.49
7,348In Stock
18,000Expected 21/9/2026

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

7,348In Stock

18,000Expected 21/9/2026

Cut Tape

$2.49

$1.84

$1.67

$1.48

View

Reel

$1.23

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: $2.49
2,662In Stock
5,000Expected 8/10/2026

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 8/10/2026

Cut Tape

$2.49

$1.84

$1.67

$1.48

Reel

$1.25

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: $2.76
12,277In 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

12,277In Stock

12,000Expected 12/10/2026

Cut Tape

$2.76

$2.09

$1.86

$1.70

View

Reel

$1.43

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 XQFN16 package

PCAL6408AHKX
NXP Semiconductors
1: $1.80
11,738In Stock
96,000Expected 22/2/2027

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

11,738In Stock

96,000Expected 22/2/2027

Cut Tape

$1.80

$1.30

$1.18

$1.04

View

Reel

$0.864

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: $2.23
2,218In Stock
6,000Expected 7/10/2026

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

2,218In Stock

6,000Expected 7/10/2026

Cut Tape

$2.23

$1.65

$1.50

$1.32

View

Reel

$1.07

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: $2.77
12,481In 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

12,481In Stock

18,000Expected 12/10/2026

Cut Tape

$2.77

$2.05

$1.88

$1.67

View

Reel

$1.40

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: $1.92
661In 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

661In Stock

6,000Expected 14/10/2026

Cut Tape

$1.92

$1.39

$1.26

$1.11

View

Reel

$0.917

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 XQFN16 package

PCA6408AHKX
NXP Semiconductors
1: $1.66
73In Stock
132,000On Order

Mfr. Part No.
PCA6408AHKX

Mouser Part No
771-PCA6408AHKX

NXP Semiconductors

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

Learn More

Datasheet

73In Stock

132,000On Order

Cut Tape

$1.66

$1.20

$1.09

$0.96

View

Reel

$0.782

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

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: $2.27
584In Stock
6,000Expected 20/8/2026

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 20/8/2026

Cut Tape

$2.27

$1.66

$1.51

$1.34

View

Reel

$1.11

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: $2.07
469In 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

469In Stock

15,000On Order

Cut Tape

$2.07

$1.51

$1.37

$1.22

View

Reel

$0.964

MouseReel Available

Min.: 1
Mult.: 1

: 5,000

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: $3.62
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

$3.62

$2.69

$2.46

$2.20

View

Reel

$1.73

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

I2C General Purpose I/O Expanders

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