Interface ICs – Mouser Japan

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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 (JPY) 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 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in X2QFN16 package PCAL6408AEX1Z NXP Semiconductors 1: ¥252.5 332In Stock 15,000On Order	Mfr. Part # PCAL6408AEX1Z Mouser Part # 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	332In Stock 15,000On Order On Order Ship Dates Mfr. #: PCAL6408AEX1Z Stock: 332 Can Ship Immediately On Order: 10,000 Expected 10/12/2026 5,000 Expected 10/19/2026 Factory Lead-Time: 30 Weeks	Cut Tape ¥252.5 ¥194.3 ¥167.8 ¥148.8 View Reel ¥124.6 ¥139.9 ¥132.7 ¥124.6 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 16-bit I2C-bus I/O Expander with Interrupt and Agile I/O in TSSOP24 package PCAL9535APW,118 NXP Semiconductors 1: ¥441.8 106In Stock 20,000On Order	Mfr. Part # PCAL9535APW,118 Mouser Part # 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 about NXP Semiconductors nxp gpioexpanders	Datasheet	106In Stock 20,000On Order On Order Ship Dates Mfr. #: PCAL9535APW,118 Stock: 106 Can Ship Immediately On Order: 5,000 Expected 9/30/2026 10,000 Expected 10/14/2026 5,000 Expected 10/21/2026 Factory Lead-Time: 30 Weeks	Cut Tape ¥441.8 ¥328.9 ¥300.6 ¥269.1 View Reel ¥220.9 ¥245.8 ¥239.2 ¥234.2 ¥220.9 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial	SMD/SMT	TSSOP-24
Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Reset in TSSOP24 package PCA9539APW,118 NXP Semiconductors 1: ¥317.3 16,765On Order	Mfr. Part # PCA9539APW,118 Mouser Part # 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	16,765On Order On Order Ship Dates Mfr. #: PCA9539APW,118 Stock: 0 On Order: 1,765 Expected 1/5/2027 10,000 Expected 3/18/2027 5,000 Expected 3/22/2027 Factory Lead-Time: 30 Weeks	Cut Tape ¥317.3 ¥234.2 ¥212.6 ¥189.4 View Reel ¥163.6 ¥181 ¥176.1 ¥163.6 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 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address than PCA9554C in HVQFN16 package PCA9554BBSHP NXP Semiconductors 1: ¥282.4 72,000On Order	Mfr. Part # PCA9554BBSHP Mouser Part # 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	72,000On Order On Order Ship Dates Mfr. #: PCA9554BBSHP Stock: 0 On Order: 18,000 Expected 4/1/2027 18,000 Expected 4/5/2027 36,000 Expected 4/15/2027 Factory Lead-Time: 30 Weeks	Cut Tape ¥282.4 ¥207.6 ¥189.4 ¥167.8 View Reel ¥129.9 ¥157 ¥151 ¥150 ¥143.2 ¥129.9 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial, SMBus	SMD/SMT	HVQFN-16
Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in TSSOP24 package PCAL6416APW,118 NXP Semiconductors 1: ¥277.4 27,356On Order	Mfr. Part # PCAL6416APW,118 Mouser Part # 771-PCAL6416APW118	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in TSSOP24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	27,356On Order On Order Ship Dates Mfr. #: PCAL6416APW,118 Stock: 0 On Order: 7,356 Expected 10/1/2026 20,000 Expected 10/19/2026 Factory Lead-Time: 30 Weeks	Cut Tape ¥277.4 ¥202.6 ¥184.4 ¥162.3 View Reel ¥132.5 ¥152.5 ¥146.5 ¥144.8 ¥132.5 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 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554B in HVQFN16 package PCA9554CBSHP NXP Semiconductors 1: ¥277.4 11,241On Order	Mfr. Part # PCA9554CBSHP Mouser Part # 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	11,241On Order On Order Ship Dates Mfr. #: PCA9554CBSHP Stock: 0 On Order: 5,241 Expected 10/21/2026 6,000 Expected 4/15/2027 Factory Lead-Time: 30 Weeks	Cut Tape ¥277.4 ¥202.6 ¥184.4 ¥163.8 View Reel ¥136 ¥153.8 ¥147.8 ¥146 ¥136 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	I/O Expanders	I/O Expanders	I/O Expander	I2C, Serial, SMBus	SMD/SMT	HVQFN-16
Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt in TSSOP24 package PCA9555APW,118 NXP Semiconductors 1: ¥323.9 9,995Expected 3/29/2027	Mfr. Part # PCA9555APW,118 Mouser Part # 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 3/29/2027	Cut Tape ¥323.9 ¥245.8 ¥217.6 ¥194.3 View Reel ¥167.8 ¥182.7 ¥176.1 ¥167.8 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: ¥299 668Expected 11/30/2026	Mfr. Part # PCA9509PDP,118 Mouser Part # 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	668Expected 11/30/2026	Cut Tape ¥299 ¥297.3 Reel ¥297.3 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Signal Buffers, Repeaters	Repeaters	I2C, SMBus	I2C, SMBus	SMD/SMT	TSSOP-8