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.

Types of Interface ICs
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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
3’341In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2’500

I/O Expanders I/O Expanders I/O Expander I2C, Serial, SMBus SMD/SMT TSSOP-16
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

I/O Expanders I/O Expanders I/O Expander I2C, Serial, SMBus SMD/SMT VFBGA-24
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in HWQFN24 package
Datasheet
19’473In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 6’000

I/O Expanders I/O Expanders I/O Expander I2C, Serial, SMBus SMD/SMT HWQFN-24
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt, Low Voltage version of PCA9535 in TSSOP24 package
Datasheet
17’788In Stock
12’500Expected 3/1/2027
MouseReel Available
Min.: 1
Mult.: 1
: 2’500

I/O Expanders I/O Expanders I/O Expander I2C, Serial, SMBus SMD/SMT TSSOP-24
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
63’938In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 6’000

I/O Expanders I/O Expanders General Purpose I2C, Serial, SMBus SMD/SMT HVQFN-16
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
54’095In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2’500

I/O Expanders I/O Expanders General Purpose I2C, Serial, SMBus SMD/SMT TSSOP-16
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
43’874In Stock
60’000Expected 8/24/2026
MouseReel Available
Min.: 1
Mult.: 1
: 6’000

I/O Expanders I/O Expanders I/O Expander I2C, Serial, SMBus SMD/SMT HWQFN-24
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Agile I/O in HWQFN24 package
Datasheet
15’802In Stock
30’000Expected 10/6/2026
MouseReel Available
Min.: 1
Mult.: 1
: 6’000

I/O Expanders I/O Expanders I/O Expander I2C, Serial SMD/SMT HWQFN-24
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
17’120In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 6’000

I/O Expanders I/O Expanders I/O Expander I2C, Serial, SMBus SMD/SMT HWQFN-24
NXP Semiconductors Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in TSSOP16 package
Datasheet
2’854In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2’500

I/O Expanders I/O Expanders I/O Expander I2C, Serial, SMBus SMD/SMT TSSOP-16
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in TSSOP24 package
Datasheet
6’141In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 2’500

I/O Expanders I/O Expanders I/O Expander I2C, Serial, SMBus SMD/SMT TSSOP-24

NXP Semiconductors Interface - Signal Buffers, Repeaters Dual Supply Low power level translating I2C-bus/SMBus repeater
Datasheet
5’972In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4’000

Signal Buffers, Repeaters Repeaters I2C, SMBus I2C, SMBus SMD/SMT XQFN-8
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt, Low Voltage version of PCA9535 in HWQFN24 package
Datasheet
12’310In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 6’000

I/O Expanders I/O Expanders I/O Expander I2C, Serial, SMBus SMD/SMT HWQFN-24

NXP Semiconductors Interface - I/O Expanders 8-bit I2C-bus I/O Expander with Interrupt and Reset in HVQFN16 package
Datasheet
7’704In Stock
18’000Expected 8/31/2026
MouseReel Available
Min.: 1
Mult.: 1
: 6’000

I/O Expanders I/O Expanders I/O Expander I2C, Serial, SMBus SMD/SMT HVQFN-16
NXP Semiconductors Interface - I/O Expanders 8-bit I2C-bus I/O Expander with Interrupt and Reset in TSSOP16 package
Datasheet
2’672In Stock
5’000Expected 10/8/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2’500

I/O Expanders I/O Expanders I/O Expander I2C, Serial, SMBus SMD/SMT TSSOP-16
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Reset in HWQFN24 package
Datasheet
13’360In Stock
12’000Expected 12/7/2026
MouseReel Available
Min.: 1
Mult.: 1
: 6’000

I/O Expanders I/O Expanders I/O Expander I2C, Serial, SMBus SMD/SMT HWQFN-24
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt in HWQFN24 package
Datasheet
3’134In Stock
42’000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 6’000

I/O Expanders I/O Expanders I/O Expander I2C, Serial, SMBus SMD/SMT HWQFN-24
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
4’986In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 5’000

I/O Expanders I/O Expanders General Purpose I2C, Serial, SMBus SMD/SMT X2QFN-16
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
15’106In Stock
32’000Expected 11/13/2026
MouseReel Available
Min.: 1
Mult.: 1
: 4’000

I/O Expanders I/O Expanders General Purpose I2C, Serial, SMBus SMD/SMT XQFN-16
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
2’218In Stock
6’000Expected 3/9/2027
MouseReel Available
Min.: 1
Mult.: 1
: 6’000

I/O Expanders I/O Expanders I/O Expander I2C, Serial, SMBus SMD/SMT VFBGA-24
NXP Semiconductors Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Agile I/O in HWQFN24 package
Datasheet
13’036In Stock
18’000Expected 10/13/2026
MouseReel Available
Min.: 1
Mult.: 1
: 6’000

I/O Expanders I/O Expanders I/O Expander I2C, Serial SMD/SMT HWQFN-24

NXP Semiconductors Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in HVQFN16 package
Datasheet
661In Stock
6’000Expected 10/13/2026
MouseReel Available
Min.: 1
Mult.: 1
: 6’000

I/O Expanders I/O Expanders I/O Expander I2C, Serial, SMBus SMD/SMT HVQFN-16
NXP Semiconductors Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in XQFN16 package
Datasheet
968In Stock
132’000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 4’000

I/O Expanders I/O Expanders I/O Expander I2C, Serial, SMBus SMD/SMT XQFN-16
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
193In Stock
12’500Expected 10/8/2026
MouseReel Available
Min.: 1
Mult.: 1
: 2’500

I/O Expanders I/O Expanders I/O Expander I2C, Serial, SMBus SMD/SMT TSSOP-16

NXP Semiconductors Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554B in HVQFN16 package
Datasheet
420In Stock
6’000Expected 2/8/2027
MouseReel Available
Min.: 1
Mult.: 1
: 6’000

I/O Expanders I/O Expanders I/O Expander I2C, Serial, SMBus SMD/SMT HVQFN-16