Interface - I/O Expanders – Mouser Finland

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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.	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
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 € 247 985On 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	247 985On Order On Order Ship Dates Mfr. No: PCA6408AHKX Stock: 0 On Order: 75 985 Expected 31/05/2027 68 000 Expected 21/06/2027 104 000 Expected 15/11/2027 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	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
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 729On 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 729On Order On Order Ship Dates Mfr. No: PCA9539APW,118 Stock: 0 On Order: 1 729 Expected 05/01/2027 15 000 Expected 07/01/2027 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	PCA9539A	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
Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address than PCA9554C in HVQFN16 package PCA9554BBSHP NXP Semiconductors 1: 1,46 € 71 975On Order	Mfr. Part No. PCA9554BBSHP Mouser Part No 771-PCA9554BBSHP	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address than PCA9554C in HVQFN16 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	71 975On Order On Order Ship Dates Mfr. No: PCA9554BBSHP Stock: 0 On Order: 17 975 Expected 14/12/2026 54 000 Expected 26/04/2027 Factory Lead Time: 30 Weeks	Cut Tape 1,46 € 1,08 € 0,98 € 0,869 € View Reel 0,673 € 0,813 € 0,782 € 0,777 € 0,741 € 0,673 € MouseReel Available	Min.: 1 Mult.: 1 : 6 000	PCA9554B	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
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: 1,47 € 11 119On Order	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 about NXP Semiconductors nxp gpioexpanders	Datasheet	11 119On Order On Order Ship Dates Mfr. No: PCA9554CBSHP Stock: 0 On Order: 5 119 Expected 12/10/2026 6 000 Expected 26/04/2027 Factory Lead Time: 30 Weeks	Cut Tape 1,47 € 1,08 € 0,98 € 0,869 € View Reel 0,704 € 0,815 € 0,784 € 0,777 € 0,756 € 0,704 € MouseReel Available	Min.: 1 Mult.: 1 : 6 000	PCA9554C	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
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 15/02/2027	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 15/02/2027	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	PCA9555A	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
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: 1,75 € 14 856In Stock 18 000Expected 19/10/2026	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 about NXP Semiconductors nxp gpioexpanders	Datasheet	14 856In Stock 18 000Expected 19/10/2026	Cut Tape 1,75 € 1,30 € 1,19 € 1,06 € View Reel 0,886 € 0,998 € 0,963 € 0,886 € 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

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