Interface ICs – Mouser South Africa

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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: $1.60
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

$1.60

$1.22

$1.07

$0.941

Reel

$0.797

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: $1.74
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

$1.74

$1.34

$1.16

$1.03

View

Reel

$0.866

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: $1.74
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

$1.74

$1.30

$1.17

$1.06

View

Reel

$0.886

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 in HWQFN24 package

PCA9555AHF,128
NXP Semiconductors
1: $2.00
28,415In Stock
24,000Expected 2026/10/06

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

28,415In Stock

24,000Expected 2026/10/06

Cut Tape

$2.00

$1.54

$1.34

$1.20

View

Reel

$1.04

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: $1.52
63,382In 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

63,382In Stock

Cut Tape

$1.52

$1.11

$1.01

$0.894

View

Reel

$0.733

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: $1.52
53,047In 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

53,047In Stock

Cut Tape

$1.52

$1.11

$1.01

$0.894

Reel

$0.747

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: $1.59
99,763In 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

99,763In Stock

Cut Tape

$1.59

$1.17

$1.05

$0.936

View

Reel

$0.766

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 and Agile I/O in HWQFN24 package

PCAL9535AHF,128
NXP Semiconductors
1: $2.40
14,932In Stock
30,000Expected 2026/10/06

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

14,932In Stock

30,000Expected 2026/10/06

Cut Tape

$2.40

$1.92

$1.76

$1.57

View

Reel

$1.33

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/SMBus I/O Expander with Interrupt, Reset and Agile I/O in HWQFN24 package

PCAL9539AHF,128
NXP Semiconductors
1: $2.57
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

$2.57

$1.90

$1.74

$1.56

View

Reel

$1.33

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: $1.42
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

$1.42

$1.03

$0.926

$0.818

Reel

$0.683

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: $1.83
6,101In 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

6,101In Stock

Cut Tape

$1.83

$1.34

$1.22

$1.09

Reel

$0.918

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: $1.07
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

$1.07

$0.771

$0.697

$0.614

View

Reel

$0.505

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: $2.09
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

$2.09

$1.54

$1.41

$1.26

View

Reel

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

PCA9535APW,118
NXP Semiconductors
1: $2.08
6,653In Stock
12,500Expected 2027/02/22

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

6,653In Stock

12,500Expected 2027/02/22

Cut Tape

$2.08

$1.54

$1.40

$1.26

Reel

$1.07

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 HVQFN16 package

PCA9538ABSHP
NXP Semiconductors
1: $1.83
7,344In Stock
18,000Expected 2026/09/21

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

7,344In Stock

18,000Expected 2026/09/21

Cut Tape

$1.83

$1.35

$1.23

$1.09

View

Reel

$0.902

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 I/O Expander with Interrupt and Reset in TSSOP16 package

PCA9538APWJ
NXP Semiconductors
1: $1.83
2,662In Stock
5,000Expected 2026/10/08

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 2026/10/08

Cut Tape

$1.83

$1.35

$1.23

$1.09

Reel

$0.921

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: $2.04
12,267In Stock
12,000Expected 2026/10/12

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

12,267In Stock

12,000Expected 2026/10/12

Cut Tape

$2.04

$1.54

$1.37

$1.26

View

Reel

$1.05

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: $1.33
10,571In Stock
96,000Expected 2027/02/22

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

10,571In Stock

96,000Expected 2027/02/22

Cut Tape

$1.33

$0.956

$0.866

$0.768

View

Reel

$0.635

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 Level Translating I/O Expander with Interrupt, Reset and Agile I/O in VFBGA24 package

PCAL6416AEVJ
NXP Semiconductors
1: $1.64
2,218In Stock
6,000Expected 2026/10/07

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 2026/10/07

Cut Tape

$1.64

$1.21

$1.10

$0.971

View

Reel

$0.785

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 I/O Expander with Interrupt and Agile I/O in HWQFN24 package

PCAL9555AHF,128
NXP Semiconductors
1: $2.04
9,281In Stock
18,000Expected 2026/10/12

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

9,281In Stock

18,000Expected 2026/10/12

Cut Tape

$2.04

$1.51

$1.38

$1.23

View

Reel

$1.03

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: $1.41
1,618In Stock
6,000Expected 2026/10/14

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

1,618In Stock

6,000Expected 2026/10/14

Cut Tape

$1.41

$1.02

$0.926

$0.818

View

Reel

$0.675

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 and Reset in XQFN16 package

PCA6408AHKX
NXP Semiconductors
1: $1.22
8In 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

8In Stock

132,000On Order

Cut Tape

$1.22

$0.883

$0.798

$0.706

View

Reel

$0.576

MouseReel Available

Min.: 1
Mult.: 1

: 4,000

I/O Expanders

I/O Expander

I2C, Serial, SMBus

SMD/SMT

XQFN-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: $1.67
2,266In Stock
6,000Expected 2026/08/27

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

2,266In Stock

6,000Expected 2026/08/27

Cut Tape

$1.67

$1.22

$1.11

$0.986

View

Reel

$0.819

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: $1.52
3,523In 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

3,523In Stock

15,000On Order

Cut Tape

$1.52

$1.11

$1.01

$0.894

View

Reel

$0.709

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 I/O Expander with Interrupt and Agile I/O in TSSOP24 package

PCAL9535APW,118
NXP Semiconductors
1: $2.66
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

$2.66

$1.98

$1.81

$1.62

View

Reel

$1.27

MouseReel Available

Min.: 1
Mult.: 1

: 2,500

I/O Expanders

I/O Expander

I2C, Serial

SMD/SMT

TSSOP-24

I2C General Purpose I/O Expanders

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