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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 (INR) Filter the results in the table by unit price based on your quantity.	Qty.
Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554B in TSSOP16 package PCA9554CPWJ NXP Semiconductors 1: ₹156.69 3,101In Stock	Mfr. Part No. PCA9554CPWJ Mouser Part No 771-PCA9554CPWJ	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554B in TSSOP16 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	3,101In Stock	Cut Tape ₹156.69 ₹116.56 ₹104.14 ₹91.81 Reel ₹76.05 View ₹86.27 ₹82.93 ₹81.97 ₹75.67 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in VFBGA24 package PCA6416AEVJ NXP Semiconductors 1: ₹172.93 4,828In Stock	Mfr. Part No. PCA6416AEVJ Mouser Part No 771-PCA6416AEVJ	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in VFBGA24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	4,828In Stock	Cut Tape ₹172.93 ₹128.02 ₹115.60 ₹103.18 View Reel ₹85.70 ₹97.45 ₹93.15 ₹92.67 ₹87.71 ₹85.70 MouseReel Available	Min.: 1 Mult.: 1 : 6,000
Interface - I/O Expanders 8-bit I2C-bus I/O Expander with Interrupt and Reset in HVQFN16 package PCA9538ABSHP NXP Semiconductors 1: ₹172.93 19,177In Stock 42,000On Order	Mfr. Part No. PCA9538ABSHP Mouser Part No 771-PCA9538ABSHP	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus I/O Expander with Interrupt and Reset in HVQFN16 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	19,177In Stock 42,000On Order On Order Ship Dates Mfr. No: PCA9538ABSHP Stock: 19,177 Can Dispatch Immediately On Order: 24,000 Expected 21-12-2026 18,000 Expected 10-05-2027 Factory Lead Time: 30 Weeks	Cut Tape ₹172.93 ₹127.07 ₹115.60 ₹101.27 View Reel ₹86.18 ₹98.41 ₹94.11 ₹93.82 ₹90.67 ₹86.18 MouseReel Available	Min.: 1 Mult.: 1 : 6,000
Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Reset in HWQFN24 package PCA9539AHF,128 NXP Semiconductors 1: ₹192.04 16,728In Stock 18,000Expected 06-11-2026	Mfr. Part No. PCA9539AHF,128 Mouser Part No 771-PCA9539AHF,128	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Reset in HWQFN24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	16,728In Stock 18,000Expected 06-11-2026	Cut Tape ₹192.04 ₹147.13 ₹130.89 ₹119.43 View Reel ₹100.32 ₹112.74 ₹108.92 ₹106.05 ₹100.32 MouseReel Available	Min.: 1 Mult.: 1 : 6,000
Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554C in TSSOP16 package PCA9554BPWJ NXP Semiconductors 1: ₹148.09 18,558In Stock 25,000Expected 17-01-2028	Mfr. Part No. PCA9554BPWJ Mouser Part No 771-PCA9554BPWJ	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554C in TSSOP16 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	18,558In Stock 25,000Expected 17-01-2028	Cut Tape ₹148.09 ₹110.83 ₹106.05 ₹93.53 Reel ₹80.92 View ₹87.99 ₹85.03 ₹83.98 ₹79.68 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt in HWQFN24 package PCA9555AHF,128 NXP Semiconductors 1: ₹185.35 33,123In Stock	Mfr. Part No. PCA9555AHF,128 Mouser Part No 771-PCA9555AHF,128	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt in HWQFN24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	33,123In Stock	Cut Tape ₹185.35 ₹145.22 ₹128.98 ₹116.56 View Reel ₹99.36 ₹110.83 ₹107.96 ₹105.09 ₹104.14 ₹99.36 MouseReel Available	Min.: 1 Mult.: 1 : 6,000
Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in HVQFN16 package PCAL6408ABSHP NXP Semiconductors 1: ₹138.53 50,391In Stock	Mfr. Part No. PCAL6408ABSHP Mouser Part No 771-PCAL6408ABSHP	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 Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	50,391In Stock	Cut Tape ₹138.53 ₹102.23 ₹93.06 ₹83.02 View Reel ₹69.94 ₹80.25 ₹77.10 ₹76.34 ₹73.66 ₹69.94 MouseReel Available	Min.: 1 Mult.: 1 : 6,000
Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in XQFN16 package PCAL6408AHKX NXP Semiconductors 1: ₹117.51 38,003In Stock 56,000Expected 04-01-2027	Mfr. Part No. PCAL6408AHKX Mouser Part No 771-PCAL6408AHKX	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 Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	38,003In Stock 56,000Expected 04-01-2027	Cut Tape ₹117.51 ₹91.34 ₹82.74 ₹73.28 View Reel ₹60.00 ₹68.69 ₹66.02 ₹64.01 ₹63.06 ₹60.00 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in TSSOP16 package PCAL6408APWJ NXP Semiconductors 1: ₹135.67 36,214In Stock	Mfr. Part No. PCAL6408APWJ Mouser Part No 771-PCAL6408APWJ	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 Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	36,214In Stock	Cut Tape ₹135.67 ₹101.27 ₹96.50 ₹85.41 Reel ₹72.23 View ₹80.25 ₹77.10 ₹76.34 ₹69.84 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in HWQFN24 package PCAL6416AHF,128 NXP Semiconductors 1: ₹153.82 82,306In Stock	Mfr. Part No. PCAL6416AHF,128 Mouser Part No 771-PCAL6416AHF,128	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 Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	82,306In Stock	Cut Tape ₹153.82 ₹112.74 ₹102.23 ₹90.29 View Reel ₹73.76 ₹84.84 ₹81.59 ₹80.64 ₹76.24 ₹73.76 MouseReel Available	Min.: 1 Mult.: 1 : 6,000
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: ₹158.60 24,238In Stock	Mfr. Part No. PCAL6416APW,118 Mouser Part No 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	24,238In Stock	Cut Tape ₹158.60 ₹121.34 ₹105.09 ₹93.34 Reel ₹77.87 View ₹87.71 ₹84.27 ₹83.31 ₹77.58 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Agile I/O in HWQFN24 package PCAL9535AHF,128 NXP Semiconductors 1: ₹223.56 15,133In Stock 18,000Expected 30-08-2027	Mfr. Part No. PCAL9535AHF,128 Mouser Part No 771-PCAL9535AHF,128	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Agile I/O in HWQFN24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	15,133In Stock 18,000Expected 30-08-2027	Cut Tape ₹223.56 ₹178.66 ₹163.37 ₹146.18 View Reel ₹122.29 ₹137.58 ₹133.76 ₹130.89 ₹129.93 ₹122.29 MouseReel Available	Min.: 1 Mult.: 1 : 6,000
Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Reset and Agile I/O in HWQFN24 package PCAL9539AHF,128 NXP Semiconductors 1: ₹219.74 24,959In Stock	Mfr. Part No. PCAL9539AHF,128 Mouser Part No 771-PCAL9539AHF,128	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Reset and Agile I/O in HWQFN24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	24,959In Stock	Cut Tape ₹219.74 ₹165.28 ₹152.86 ₹148.09 View Reel ₹126.11 ₹140.44 ₹136.62 ₹126.11 MouseReel Available	Min.: 1 Mult.: 1 : 6,000
Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in HVQFN16 package PCA6408ABSHP NXP Semiconductors 1: ₹132.80 6,811In Stock 12,000Expected 10-05-2027	Mfr. Part No. PCA6408ABSHP Mouser Part No 771-PCA6408ABSHP	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in HVQFN16 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	6,811In Stock 12,000Expected 10-05-2027	Cut Tape ₹132.80 ₹96.50 ₹87.32 ₹77.39 View Reel ₹63.73 ₹72.71 ₹69.84 ₹67.83 ₹66.88 ₹63.73 MouseReel Available	Min.: 1 Mult.: 1 : 6,000
Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in TSSOP16 package PCA6408APW,118 NXP Semiconductors 1: ₹134.71 2,566In Stock	Mfr. Part No. PCA6408APW,118 Mouser Part No 771-PCA6408APW,118	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in TSSOP16 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	2,566In Stock	Cut Tape ₹134.71 ₹97.45 ₹88.37 ₹78.92 Reel ₹69.55 View ₹75.09 ₹72.80 ₹70.99 ₹68.41 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in HWQFN24 package PCA6416AHF,128 NXP Semiconductors 1: ₹160.51 14,336In Stock	Mfr. Part No. PCA6416AHF,128 Mouser Part No 771-PCA6416AHF,128	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in HWQFN24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	14,336In Stock	Cut Tape ₹160.51 ₹121.34 ₹110.83 ₹100.32 View Reel ₹84.36 ₹94.39 ₹91.24 ₹90.95 ₹87.71 ₹84.36 MouseReel Available	Min.: 1 Mult.: 1 : 6,000
Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in TSSOP24 package PCA6416APW,118 NXP Semiconductors 1: ₹173.88 5,042In Stock	Mfr. Part No. PCA6416APW,118 Mouser Part No 771-PCA6416APW118	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in TSSOP24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	5,042In Stock	Cut Tape ₹173.88 ₹128.02 ₹116.56 ₹104.14 Reel ₹87.61 View ₹97.45 ₹93.72 ₹93.44 ₹85.60 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt, Low Voltage version of PCA9535 in HWQFN24 package PCA9535AHF,128 NXP Semiconductors 1: ₹187.26 10,394In Stock	Mfr. Part No. PCA9535AHF,128 Mouser Part No 771-PCA9535AHF,128	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt, Low Voltage version of PCA9535 in HWQFN24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	10,394In Stock	Cut Tape ₹187.26 ₹141.40 ₹128.02 ₹116.56 View Reel ₹98.41 ₹110.83 ₹107.00 ₹105.09 ₹104.14 ₹98.41 MouseReel Available	Min.: 1 Mult.: 1 : 6,000
Interface - I/O Expanders 8-bit I2C-bus I/O Expander with Interrupt and Reset in TSSOP16 package PCA9538APWJ NXP Semiconductors 1: ₹167.20 3,942In Stock 5,000Expected 07-01-2027	Mfr. Part No. PCA9538APWJ Mouser Part No 771-PCA9538APWJ	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus I/O Expander with Interrupt and Reset in TSSOP16 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	3,942In Stock 5,000Expected 07-01-2027	Cut Tape ₹167.20 ₹124.20 ₹113.69 ₹101.27 Reel ₹87.99 View ₹98.41 ₹94.11 ₹93.82 ₹86.08 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
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: ₹159.55 4,267In Stock 6,000Expected 10-05-2027	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	4,267In Stock 6,000Expected 10-05-2027	Cut Tape ₹159.55 ₹116.56 ₹106.05 ₹94.11 View Reel ₹76.91 ₹88.37 ₹84.94 ₹83.88 ₹78.63 ₹76.91 MouseReel Available	Min.: 1 Mult.: 1 : 6,000
Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in VFBGA24 package PCAL6416AEVJ NXP Semiconductors 1: ₹150.95 7,214In Stock	Mfr. Part No. PCAL6416AEVJ Mouser Part No 771-PCAL6416AEVJ	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 Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	7,214In Stock	Cut Tape ₹150.95 ₹111.78 ₹102.23 ₹90.57 View Reel ₹76.34 ₹85.79 ₹82.83 ₹82.07 ₹79.49 ₹76.34 MouseReel Available	Min.: 1 Mult.: 1 : 6,000
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: ₹235.03 7,159In Stock 7,500Expected 29-10-2026	Mfr. Part No. PCAL9535APW,118 Mouser Part No 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	7,159In Stock 7,500Expected 29-10-2026	Cut Tape ₹235.03 ₹173.88 ₹167.20 ₹150.00 Reel ₹128.02 View ₹141.40 ₹136.62 ₹130.89 ₹125.16 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
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: ₹223.56 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 ₹223.56 ₹170.06 ₹156.69 ₹142.35 View Reel ₹126.11 ₹135.67 ₹131.85 ₹128.98 ₹126.11 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
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: ₹194.90 12,669In Stock 18,000Expected 02-11-2026	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	12,669In Stock 18,000Expected 02-11-2026	Cut Tape ₹194.90 ₹144.27 ₹131.85 ₹117.51 View Reel ₹98.41 ₹110.83 ₹107.00 ₹98.41 MouseReel Available	Min.: 1 Mult.: 1 : 6,000
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: ₹192.99 4,480In 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	4,480In Stock	Cut Tape ₹192.99 ₹142.35 ₹128.98 ₹114.65 View Reel ₹96.50 ₹107.96 ₹104.14 ₹96.50 MouseReel Available	Min.: 1 Mult.: 1 : 2,500

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I2C General Purpose I/O Expanders

Types of Semiconductors