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Interface - I/O Expanders

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CLP) 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 16bit Input/Output Exp I2C interface MCP23017-E/SO Microchip Technology 1: $1.779 37.027In Stock	Mfr. Part # MCP23017-E/SO Mouser Part # 579-MCP23017-E/SO	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp I2C interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	37.027In Stock	$1.779 $1.482 $1.361	Min.: 1 Mult.: 1	MCP23017	SMD/SMT	SOIC-28	I2C, Serial	16 I/O	With Interrupt	1.8 V	5.5 V	1.7 MHz	- 40 C	+ 125 C	Tube	4 kV
Interface - I/O Expanders 16bit Input/Output Exp I2C interface MCP23017-E/SS Microchip Technology 1: $1.856 16.021In Stock 6.855Expected 10/12/2026	Mfr. Part # MCP23017-E/SS Mouser Part # 579-MCP23017-E/SS	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp I2C interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	16.021In Stock 6.855Expected 10/12/2026	$1.856 $1.537 $1.405	Min.: 1 Mult.: 1	MCP23017	SMD/SMT	SSOP-28	I2C, Serial	16 I/O	With Interrupt	1.8 V	5.5 V	1.7 MHz	- 40 C	+ 125 C	Tube	4 kV
Interface - I/O Expanders 16bit Input/Output Exp I2C interface MCP23017T-E/ML Microchip Technology 1: $2.086 23.279In Stock	Mfr. Part # MCP23017T-E/ML Mouser Part # 579-MCP23017T-E/ML	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp I2C interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	23.279In Stock	Cut Tape $2.086 $1.746 Reel $1.581 MouseReel Available	Min.: 1 Mult.: 1 : 1.600	MCP23017	SMD/SMT	QFN-28	I2C, Serial	16 I/O	With Interrupt	1.8 V	5.5 V	1.7 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	4 kV
Interface - I/O Expanders 16bit Input/Output Exp I2C interface MCP23017T-E/SS Microchip Technology 1: $1.856 54.389In Stock	Mfr. Part # MCP23017T-E/SS Mouser Part # 579-MCP23017T-E/SS	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp I2C interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	54.389In Stock	Cut Tape $1.856 $1.537 Reel $1.405 MouseReel Available	Min.: 1 Mult.: 1 : 2.100	MCP23017	SMD/SMT	SSOP-28	I2C, Serial	16 I/O	With Interrupt	1.8 V	5.5 V	1.7 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	4 kV
Interface - I/O Expanders Remote 4-Bit I2C and SMBus I/O Expander PCA9536DGKR Texas Instruments 1: $1.713 20.217In Stock	Mfr. Part # PCA9536DGKR Mouser Part # 595-PCA9536DGKR	Texas Instruments	Interface - I/O Expanders Remote 4-Bit I2C and SMBus I/O Expander	Datasheet	20.217In Stock	Cut Tape $1.713 $1.263 $1.142 $1.010 View Reel $904 $950 $912 $904 $904 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1.001 : 2.500	PCA9536	SMD/SMT	VSSOP-8	I2C, Serial, SMBus	4 I/O	Without Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander R 595-TCA9539PWR PCA9539PWR Texas Instruments 1: $4.919 6.959In Stock	Mfr. Part # PCA9539PWR Mouser Part # 595-PCA9539PWR	Texas Instruments	Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander R 595-TCA9539PWR	Datasheet	6.959In Stock	Cut Tape $4.919 $3.733 $3.437 $3.107 Reel $2.778 View $2.953 $2.855 $2.657 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	PCA9539	SMD/SMT	TSSOP-24	I2C, Serial, SMBus	16 I/O	With Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders Lo-Vltg 16B I2C and SMBus I/O Expander TCA6416ARTWR Texas Instruments 1: $2.251 8.576In Stock 27.000Expected 12/17/2026	Mfr. Part # TCA6416ARTWR Mouser Part # 595-TCA6416ARTWR	Texas Instruments	Interface - I/O Expanders Lo-Vltg 16B I2C and SMBus I/O Expander	Datasheet	8.576In Stock 27.000Expected 12/17/2026	Cut Tape $2.251 $1.658 $1.515 $1.350 Reel $1.153 View $1.274 $1.219 $1.175 $1.109 MouseReel Available	Min.: 1 Mult.: 1 : 3.000	TCA6416A	SMD/SMT	WQFN-24	I2C, Serial, SMBus	16 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 Lo-Vltg 24B I2C and SMBus I/O Expander TCA6424ARGJR Texas Instruments 1: $3.052 42.443In Stock	Mfr. Part # TCA6424ARGJR Mouser Part # 595-TCA6424ARGJR	Texas Instruments	Interface - I/O Expanders Lo-Vltg 24B I2C and SMBus I/O Expander	Datasheet	42.443In Stock	Cut Tape $3.052 $2.284 $2.086 $1.878 View Reel $1.680 $1.768 $1.735 $1.680 $1.680 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1.001 : 3.000	TCA6424A	SMD/SMT	UQFN-32	I2C, Serial, SMBus	24 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 Remote 8B I2C and Lo w-Pwr I/O Expander TCA9534PWR Texas Instruments 1: $1.680 28.185In Stock	Mfr. Part # TCA9534PWR Mouser Part # 595-TCA9534PWR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C and Lo w-Pwr I/O Expander	Datasheet	28.185In Stock	Cut Tape $1.680 $1.230 $1.120 $985 Reel $823 View $926 $890 $881 $806 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	TCA9534	SMD/SMT	TSSOP-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 Rem 16B I2C & SMBus Low-Pwr I/O Expander TCA9539RTWR Texas Instruments 1: $2.602 21.445In Stock	Mfr. Part # TCA9539RTWR Mouser Part # 595-TCA9539RTWR	Texas Instruments	Interface - I/O Expanders Rem 16B I2C & SMBus Low-Pwr I/O Expander	Datasheet	21.445In Stock	Cut Tape $2.602 $1.932 $1.768 $1.581 View Reel $1.416 $1.493 $1.449 $1.416 $1.416 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1.001 : 3.000	TCA9539	SMD/SMT	WQFN-24	I2C, Serial, SMBus	16 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 Remote 16B I2C & SMB us I/O Expander TCA9555PWR Texas Instruments 1: $1.954 16.819In Stock	Mfr. Part # TCA9555PWR Mouser Part # 595-TCA9555PWR	Texas Instruments	Interface - I/O Expanders Remote 16B I2C & SMB us I/O Expander Learn More about Texas Instruments ti tca9555 io expander	Datasheet	16.819In Stock	Cut Tape $1.954 $1.427 $1.296 $1.153 Reel $966 View $1.079 $1.038 $1.029 $945 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	TCA9555	SMD/SMT	TSSOP-24	I2C, Serial, SMBus	16 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 SDIO Port Expander TXS02612RTWR Texas Instruments 1: $1.954 18.186In Stock 27.000On Order	Mfr. Part # TXS02612RTWR Mouser Part # 595-TXS02612RTWR	Texas Instruments	Interface - I/O Expanders SDIO Port Expander	Datasheet	18.186In Stock 27.000On Order On Order Ship Dates Mfr. #: TXS02612RTWR Stock: 18.186 Can Ship Immediately On Order: 3.000 Expected 11/9/2026 3.000 Expected 1/21/2027 21.000 Expected 5/13/2027 Factory Lead-Time: 16 Weeks	Cut Tape $1.954 $1.438 $1.307 $1.153 Reel $964 View $1.083 $1.041 $1.032 $943 MouseReel Available	Min.: 1 Mult.: 1 : 3.000	TXS02612	SMD/SMT	WQFN-24	Parallel	4 I/O	Without Interrupt	1.1 V	3.6 V	60 MHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders Interface IO Expander W-QFN4565-46 T&R 3.5K PI4IOE5V6534Q2ZLWEX Diodes Incorporated 1: $4.084 8.785In Stock 7.000Expected 3/6/2028	Mfr. Part # PI4IOE5V6534Q2ZLWEX Mouser Part # 621-PI4IO565342ZLWEX	Diodes Incorporated	Interface - I/O Expanders Interface IO Expander W-QFN4565-46 T&R 3.5K Learn More about Diodes Incorporated diodes pi4ioe5v6534q expander	Datasheet	8.785In Stock 7.000Expected 3/6/2028	Cut Tape $4.084 $3.052 $2.723 $2.514 $2.437 Reel $2.437 MouseReel Available	Min.: 1 Mult.: 1 Max.: 400 : 3.500	PI4IOE5V6534Q	SMD/SMT	TQFN-46	I2C, Serial	28 I/O	With Interrupt	1.65 V	5.5 V	100 kHz	- 40 C	+ 105 C	Reel, Cut Tape, MouseReel	2 kV
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: $1.845 17.841In Stock	Mfr. Part # PCA6416AHF,128 Mouser Part # 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	17.841In Stock	Cut Tape $1.845 $1.394 $1.274 $1.153 View Reel $969 $1.085 $1.049 $1.045 $1.008 $969 MouseReel Available	Min.: 1 Mult.: 1 : 6.000	PCA6416	SMD/SMT	HWQFN-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
Interface - I/O Expanders 40-bit I2C-bus I/O Expander with Interrupt, Output Enable and Reset in TSSOP56 package PCA9505DGGY NXP Semiconductors 1: $7.137 7.711In Stock 1.865Expected 10/26/2026	Mfr. Part # PCA9505DGGY Mouser Part # 771-PCA9505DGGY	NXP Semiconductors	Interface - I/O Expanders 40-bit I2C-bus I/O Expander with Interrupt, Output Enable and Reset in TSSOP56 package	Datasheet	7.711In Stock 1.865Expected 10/26/2026	Cut Tape $7.137 $5.479 $5.062 $4.611 View Reel $4.095 $4.414 $4.348 $4.315 $4.095 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	PCA9505	SMD/SMT	TSSOP-56	I2C, Serial	40 I/O	With Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 40-bit I2C-bus I/O Expander with Interrupt, Output Enable and Reset, Low Power version of PCA9505 in TSSOP56 package PCA9506DGG,518 NXP Semiconductors 1: $9.420 15.367In Stock	Mfr. Part # PCA9506DGG,518 Mouser Part # 771-PCA9506DGG-T	NXP Semiconductors	Interface - I/O Expanders 40-bit I2C-bus I/O Expander with Interrupt, Output Enable and Reset, Low Power version of PCA9505 in TSSOP56 package	Datasheet	15.367In Stock	Cut Tape $9.420 $7.279 $6.741 $6.149 View Reel $5.391 $5.841 $5.687 $5.589 $5.391 MouseReel Available	Min.: 1 Mult.: 1 : 2.000	PCA9506	SMD/SMT	TSSOP-56	I2C, Serial	40 I/O	With Interrupt	2.3 V	5.5 V	400 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, Low Power version of PCA9554 in TSSOP16 package PCA9534PW,118 NXP Semiconductors 1: $2.229 55.679In Stock	Mfr. Part # PCA9534PW,118 Mouser Part # 771-PCA9534PW-T	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt, Low Power version of PCA9554 in TSSOP16 package	Datasheet	55.679In Stock	Cut Tape $2.229 $1.713 $1.537 $1.383 Reel $1.197 View $1.307 $1.252 $1.241 $1.164 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	PCA9534	SMD/SMT	TSSOP-16	I2C, Serial, SMBus	8 I/O	With Interrupt	2.3 V	5.5 V	400 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, Low Power version of PCA9555 in HVQFN24 package PCA9535BS,118 NXP Semiconductors 1: $2.679 44.145In Stock	Mfr. Part # PCA9535BS,118 Mouser Part # 771-PCA9535BS-T	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Low Power version of PCA9555 in HVQFN24 package	Datasheet	44.145In Stock	Cut Tape $2.679 $2.141 $1.954 $1.757 View Reel $1.471 $1.658 $1.614 $1.570 $1.559 $1.471 MouseReel Available	Min.: 1 Mult.: 1 : 6.000	PCA9535	SMD/SMT	HVQFN-24	I2C, Serial, SMBus	16 I/O	With Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 4-bit I2C-bus/SMBus I/O Expander in TSSOP8 package PCA9536DP,118 NXP Semiconductors 1: $2.053 27.383In Stock 30.000Expected 11/9/2026	Mfr. Part # PCA9536DP,118 Mouser Part # 771-PCA9536DP-T	NXP Semiconductors	Interface - I/O Expanders 4-bit I2C-bus/SMBus I/O Expander in TSSOP8 package	Datasheet	27.383In Stock 30.000Expected 11/9/2026	Cut Tape $2.053 $1.515 $1.372 $1.230 Reel $1.035 View $1.153 $1.109 $1.012 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	PCA9536	SMD/SMT	TSSOP-8	I2C, Serial, SMBus	4 I/O	Without Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 4-bit I2C-bus/SMBus I/O Expander in HVSON8 package PCA9536TK,118 NXP Semiconductors 1: $2.141 25.760In Stock	Mfr. Part # PCA9536TK,118 Mouser Part # 771-PCA9536TK118	NXP Semiconductors	Interface - I/O Expanders 4-bit I2C-bus/SMBus I/O Expander in HVSON8 package	Datasheet	25.760In Stock	Cut Tape $2.141 $1.581 $1.438 $1.285 View Reel $1.064 $1.208 $1.164 $1.120 $1.064 MouseReel Available	Min.: 1 Mult.: 1 : 6.000	PCA9536	SMD/SMT	HVSON-8	I2C, Serial, SMBus	4 I/O	Without Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 8-bit I2C-bus I/O Expander with Interrupt and Reset in HVQFN16 package PCA9538ABSHP NXP Semiconductors 1: $1.987 21.504In Stock 18.000Expected 3/22/2027	Mfr. Part # PCA9538ABSHP Mouser Part # 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	21.504In Stock 18.000Expected 3/22/2027	Cut Tape $1.987 $1.460 $1.329 $1.164 View Reel $990 $1.131 $1.081 $1.078 $1.042 $990 MouseReel Available	Min.: 1 Mult.: 1 : 6.000	PCA9538A	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	2 kV
Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554 in TSSOP16 package PCA9554APW,118 NXP Semiconductors 1: $2.317 15.939In Stock	Mfr. Part # PCA9554APW,118 Mouser Part # 771-PCA9554APW-T	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554 in TSSOP16 package	Datasheet	15.939In Stock	Cut Tape $2.317 $1.713 $1.570 $1.394 Reel $1.175 View $1.318 $1.274 $1.252 $1.164 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	PCA9554A	SMD/SMT	TSSOP-16	I2C, Serial, SMBus	8 I/O	With Interrupt	2.3 V	5.5 V	400 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 with PCA9554C in TSSOP16 package PCA9554BPWJ NXP Semiconductors 1: $1.746 21.500In Stock	Mfr. Part # PCA9554BPWJ Mouser Part # 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	21.500In Stock	Cut Tape $1.746 $1.307 $1.252 $1.120 Reel $904 View $1.044 $1.004 $965 $884 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	PCA9554B	SMD/SMT	TSSOP-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 PCA9554A in TSSOP16 package PCA9554PW,118 NXP Semiconductors 1: $2.317 34.643In Stock	Mfr. Part # PCA9554PW,118 Mouser Part # 771-PCA9554PW-T	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554A in TSSOP16 package	Datasheet	34.643In Stock	Cut Tape $2.317 $1.713 $1.570 $1.394 Reel $1.186 View $1.318 $1.274 $1.252 $1.153 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	PCA9554	SMD/SMT	TSSOP-16	I2C, Serial, SMBus	8 I/O	With Interrupt	2.3 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 in HWQFN24 package PCA9555AHF,128 NXP Semiconductors 1: $2.130 51.196In Stock	Mfr. Part # PCA9555AHF,128 Mouser Part # 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	51.196In Stock	Cut Tape $2.130 $1.669 $1.482 $1.340 View Reel $1.142 $1.263 $1.230 $1.208 $1.197 $1.142 MouseReel Available	Min.: 1 Mult.: 1 : 6.000	PCA9555A	SMD/SMT	HWQFN-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