Interface ICs – Mouser Estonia

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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.	Product Type	Product	Type	Interface Type	Mounting Style	Package/Case
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: 2,16 € 7.429In Stock	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 about NXP Semiconductors nxp gpioexpanders	Datasheet	7.429In Stock	Cut Tape 2,16 € 1,61 € 1,47 € 1,34 € Reel 1,17 € View 1,26 € 1,24 € 1,14 € MouseReel Available	Min.: 1 Mult.: 1 : 2.500	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial, SMBus	SMD/SMT	TSSOP-24
Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Agile I/O in TSSOP24 package PCAL9555APW,118 NXP Semiconductors 1: 1,74 € 4.530In Stock	Mfr. Part No. PCAL9555APW,118 Mouser Part No 771-PCAL9555APW118	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Agile I/O in TSSOP24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	4.530In Stock	Cut Tape 1,74 € 1,28 € 1,16 € 1,03 € View Reel 0,869 € 0,972 € 0,937 € 0,869 € MouseReel Available	Min.: 1 Mult.: 1 : 2.500	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial	SMD/SMT	TSSOP-24
Interface - Signal Buffers, Repeaters Dual Supply Low power level translating I2C-bus/SMBus repeater PCA9509PGM,125 NXP Semiconductors 1: 1,03 € 1.547In Stock 8.000Expected 1/14/2027	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 about NXP Semiconductors nxp pca9509 repeater	Datasheet	1.547In Stock 8.000Expected 1/14/2027	Cut Tape 1,03 € 0,74 € 0,667 € 0,587 € View Reel 0,473 € 0,548 € 0,525 € 0,508 € 0,486 € 0,473 € MouseReel Available	Min.: 1 Mult.: 1 : 4.000	Signal Buffers, Repeaters	Repeaters	I2C, SMBus	I2C, SMBus	SMD/SMT	XQFN-8
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: 1,31 € 192In Stock 15.000Expected 10/19/2027	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 about NXP Semiconductors nxp gpioexpanders	Datasheet	192In Stock 15.000Expected 10/19/2027	Cut Tape 1,31 € 1,01 € 0,869 € 0,771 € View Reel 0,645 € 0,724 € 0,687 € 0,645 € MouseReel Available	Min.: 1 Mult.: 1 : 5.000	I/O Expanders	I/O Expanders	General Purpose	I2C, Serial, SMBus	SMD/SMT	X2QFN-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: 1,05 € 212.886On 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 about NXP Semiconductors nxp gpioexpanders	Datasheet	212.886On Order On Order Ship Dates Mfr. No: PCA6408AHKX Stock: 0 On Order: 40.886 Expected 5/31/2027 68.000 Expected 6/28/2027 104.000 Expected 9/27/2027 Factory Lead Time: 30 Weeks	Cut Tape 1,05 € 0,759 € 0,686 € 0,607 € View Reel 0,495 € 0,569 € 0,546 € 0,528 € 0,519 € 0,495 € MouseReel Available	Min.: 1 Mult.: 1 : 4.000	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial, SMBus	SMD/SMT	XQFN-16
Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Reset in TSSOP24 package PCA9539APW,118 NXP Semiconductors 1: 1,64 € 16.679On Order	Mfr. Part No. PCA9539APW,118 Mouser Part No 771-PCA9539APW,118	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Reset in TSSOP24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	16.679On Order On Order Ship Dates Mfr. No: PCA9539APW,118 Stock: 0 On Order: 1.679 Expected 1/12/2027 15.000 Expected 1/14/2027 Factory Lead Time: 30 Weeks	Cut Tape 1,64 € 1,21 € 1,10 € 0,98 € View Reel 0,847 € 0,937 € 0,912 € 0,847 € MouseReel Available	Min.: 1 Mult.: 1 : 2.500	I/O Expanders	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 PCA9509PDP,118 NXP Semiconductors 1: 1,67 € 2.274Expected 11/30/2026	Mfr. Part No. PCA9509PDP,118 Mouser Part No 771-PCA9509PDP,118	NXP Semiconductors	Interface - Signal Buffers, Repeaters Dual Supply Low power level translating I2C-bus/SMBus repeater Learn More about NXP Semiconductors nxp pca9509 repeater	Datasheet	2.274Expected 11/30/2026	Cut Tape 1,67 € 1,22 € 1,11 € 0,989 € View Reel 0,813 € 0,929 € 0,894 € 0,813 € MouseReel Available	Min.: 1 Mult.: 1 : 2.500	Signal Buffers, Repeaters	Repeaters	I2C, SMBus	I2C, SMBus	SMD/SMT	TSSOP-8
Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt in TSSOP24 package PCA9555APW,118 NXP Semiconductors 1: 1,68 € 9.995Expected 2/22/2027	Mfr. Part No. PCA9555APW,118 Mouser Part No 771-PCA9555APW118	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt in TSSOP24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	9.995Expected 2/22/2027	Cut Tape 1,68 € 1,27 € 1,13 € 1,01 € View Reel 0,869 € 0,946 € 0,912 € 0,869 € MouseReel Available	Min.: 1 Mult.: 1 : 2.500	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial, SMBus	SMD/SMT	TSSOP-24

I2C General Purpose I/O Expanders

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