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.

Results: 31
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Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model 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
Packaging
ESD Protection
NXP Semiconductors Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554B in TSSOP16 package
Datasheet
3 211In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

PCA9554C SMD/SMT TSSOP-16 I2C, Serial, SMBus 8 I/O With Interrupt 1.65 V 5.5 V 100 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in VFBGA24 package
Datasheet
4 828In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 6 000

PCA6416 SMD/SMT VFBGA-24 I2C, Serial, SMBus 16 I/O With Interrupt 1.65 V 5.5 V 100 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in HWQFN24 package
Datasheet
17 841In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 6 000

PCA6416 SMD/SMT HWQFN-24 I2C, Serial, SMBus 16 I/O With Interrupt 1.65 V 5.5 V 100 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel

NXP Semiconductors Interface - I/O Expanders 8-bit I2C-bus I/O Expander with Interrupt and Reset in HVQFN16 package
Datasheet
21 504In Stock
18 000Expected 22/03/2027
MouseReel Available
Min.: 1
Mult.: 1
: 6 000

PCA9538A SMD/SMT HVQFN-16 I2C, Serial, SMBus 8 I/O With Interrupt 1.65 V 5.5 V 100 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
NXP Semiconductors Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554C in TSSOP16 package
Datasheet
21 500In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

PCA9554B SMD/SMT TSSOP-16 I2C, Serial, SMBus 8 I/O With Interrupt 1.65 V 5.5 V 100 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt in HWQFN24 package
Datasheet
51 196In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 6 000

PCA9555A SMD/SMT HWQFN-24 I2C, Serial, SMBus 16 I/O With Interrupt 1.65 V 5.5 V 100 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
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
Datasheet
56 453In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 6 000

PCAL6408A SMD/SMT HVQFN-16 I2C, Serial, SMBus 8 I/O With Interrupt 1.65 V 5.5 V 400 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
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
Datasheet
39 849In Stock
56 000Expected 22/02/2027
MouseReel Available
Min.: 1
Mult.: 1
: 4 000

PCAL6408A SMD/SMT XQFN-16 I2C, Serial, SMBus 8 I/O With Interrupt 1.65 V 5.5 V 400 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
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
Datasheet
48 473In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

PCAL6408A SMD/SMT TSSOP-16 I2C, Serial, SMBus 8 I/O With Interrupt 1.65 V 5.5 V 400 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
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
Datasheet
93 664In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 6 000

PCAL6416A SMD/SMT HWQFN-24 I2C, Serial, SMBus 16 I/O With Interrupt 1.65 V 5.5 V 400 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Agile I/O in HWQFN24 package
Datasheet
34 279In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 6 000

PCAL9535A SMD/SMT HWQFN-24 I2C, Serial 16 I/O With Interrupt 1.65 V 5.5 V 100 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Reset and Agile I/O in HWQFN24 package
Datasheet
13 017In Stock
12 000Expected 19/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 6 000

PCAL9539A SMD/SMT HWQFN-24 I2C, Serial, SMBus 16 I/O With Interrupt 1.65 V 5.5 V 100 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Agile I/O in HWQFN24 package
Datasheet
26 621In Stock
18 000Expected 19/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 6 000

PCAL9555A SMD/SMT HWQFN-24 I2C, Serial 16 I/O With Interrupt 1.65 V 5.5 V 100 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
NXP Semiconductors Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in TSSOP16 package
Datasheet
2 600In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

PCA6408A SMD/SMT TSSOP-16 I2C, Serial, SMBus 8 I/O With Interrupt 1.65 V 5.5 V 400 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in TSSOP24 package
Datasheet
5 062In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

PCA6416 SMD/SMT TSSOP-24 I2C, Serial, SMBus 16 I/O With Interrupt 1.65 V 5.5 V 100 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt, Low Voltage version of PCA9535 in HWQFN24 package
Datasheet
10 990In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 6 000

PCA9535A SMD/SMT HWQFN-24 I2C, Serial, SMBus 16 I/O With Interrupt 1.65 V 5.5 V 100 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt, Low Voltage version of PCA9535 in TSSOP24 package
Datasheet
2 098In Stock
12 500Expected 16/11/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

PCA9535A SMD/SMT TSSOP-24 I2C, Serial, SMBus 16 I/O With Interrupt 1.65 V 5.5 V 100 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
NXP Semiconductors Interface - I/O Expanders 8-bit I2C-bus I/O Expander with Interrupt and Reset in TSSOP16 package
Datasheet
7 176In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

PCA9538A SMD/SMT TSSOP-16 I2C, Serial, SMBus 8 I/O With Interrupt 1.65 V 5.5 V 100 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Reset in HWQFN24 package
Datasheet
7 276In Stock
12 000Expected 12/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 6 000

PCA9539A SMD/SMT HWQFN-24 I2C, Serial, SMBus 16 I/O With Interrupt 1.65 V 5.5 V 100 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
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
Datasheet
7 301In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 6 000

PCAL6416A SMD/SMT VFBGA-24 I2C, Serial, SMBus 16 I/O With Interrupt 1.65 V 5.5 V 400 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Reset and Agile I/O in TSSOP24 package
Datasheet
7 800In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

PCAL9539A SMD/SMT TSSOP-24 I2C, Serial, SMBus 16 I/O With Interrupt 1.65 V 5.5 V 100 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Agile I/O in TSSOP24 package
Datasheet
4 755In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2 500

PCAL9555A SMD/SMT TSSOP-24 I2C, Serial 16 I/O With Interrupt 1.65 V 5.5 V 100 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV

NXP Semiconductors Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in HVQFN16 package
Datasheet
476In Stock
18 000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 6 000

PCA6408A SMD/SMT HVQFN-16 I2C, Serial, SMBus 8 I/O With Interrupt 1.65 V 5.5 V 400 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
NXP Semiconductors Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in XQFN16 package
Datasheet
54In Stock
144 000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 4 000

PCA6408A SMD/SMT XQFN-16 I2C, Serial, SMBus 8 I/O With Interrupt 1.65 V 5.5 V 400 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV
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
Datasheet
332In Stock
15 000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 5 000

PCAL6408A SMD/SMT X2QFN-16 I2C, Serial, SMBus 8 I/O With Interrupt 1.65 V 5.5 V 400 kHz - 40 C + 85 C Reel, Cut Tape, MouseReel 2 kV