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Interface - I/O Expanders

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) 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	Qualification	Packaging	ESD Protection
Interface - I/O Expanders I C Port Expander with 4 Push-Pull Outpu MAX7322ATE+ Analog Devices / Maxim Integrated 1: $6.68 233In Stock	Mfr. Part # MAX7322ATE+ Mouser Part # 700-MAX7322ATE	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expander with 4 Push-Pull Outpu	Datasheet	233In Stock	$6.68 $5.12 $4.74 $3.96	Min.: 1 Mult.: 1 Max.: 186	MAX7322	SMD/SMT	TQFN-EP-16	I2C, Serial	4 I/O	With Interrupt	1.71 V	5.5 V	400 kHz	- 40 C	+ 125 C		Tube	Without ESD Protection
Interface - I/O Expanders LPC & eSPI I/F with 4 full function UART with RS485 autoflow control; support -40C-+85C Nuvoton NCT5124D NCT5124D Nuvoton 1: $4.10 150In Stock 250Expected 1/21/2027	Mfr. Part # NCT5124D Mouser Part # 503-NCT5124D	Nuvoton	Interface - I/O Expanders LPC & eSPI I/F with 4 full function UART with RS485 autoflow control; support -40C-+85C		150In Stock 250Expected 1/21/2027	$4.10 $3.09 $2.84 $2.56 View $2.43 $2.41 $2.27 $2.22	Min.: 1 Mult.: 1										- 40 C	+ 85 C		Tray
Interface - I/O Expanders Low Voltage 16-Bit I2C-bus I/O Expander KTS1625EUAA-TB Kinetic Technologies 1: $2.03 A tariff of 38% may be applied if shipping to the United States. 1,050In Stock New Product	Mfr. Part # KTS1625EUAA-TB Mouser Part # 389-KTS1625EUAA-TB New Product	Kinetic Technologies	Interface - I/O Expanders Low Voltage 16-Bit I2C-bus I/O Expander Learn More about Kinetic Technologies kinetic kts1625 16 bit i2c bus io expander	Datasheet	1,050In Stock	Cut Tape $2.03 $1.50 $1.37 $1.22 Reel $1.04 View $1.15 $1.11 $1.06 $1.00 A tariff of 38% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 1,500	KTS1625	SMD/SMT	WQFN-24	I2C	16 I/O	With Interrupt	1.65 V	5.5 V	1 MHz	- 40 C	+ 85 C		Reel, Cut Tape
Interface - I/O Expanders NCA6416BY/SOT8041/HWQFN24 NCA6416BYHP Nexperia 1: $1.57 2,256In Stock New Product	Mfr. Part # NCA6416BYHP Mouser Part # 771-NCA6416BYHP New Product	Nexperia	Interface - I/O Expanders NCA6416BY/SOT8041/HWQFN24 Learn More about Nexperia nca6416 io expanders	Datasheet	2,256In Stock	Cut Tape $1.57 $1.15 $1.04 $0.923 Reel $0.772 View $0.868 $0.834 $0.827 $0.753 MouseReel Available	Min.: 1 Mult.: 1 : 3,000													Reel, Cut Tape, MouseReel
Interface - I/O Expanders Automotive 16-bit lo w voltage I C/SMBus TCAL9539RTWRQ1 Texas Instruments 1: $3.64 A tariff of 38% may be applied if shipping to the United States. 10,233In Stock	Mfr. Part # TCAL9539RTWRQ1 Mouser Part # 595-TCAL9539RTWRQ1	Texas Instruments	Interface - I/O Expanders Automotive 16-bit lo w voltage I C/SMBus Learn More about Texas Instruments ti tcal9539r i2c bus smbus io expander	Datasheet	10,233In Stock	Cut Tape $3.64 $2.71 $2.48 $2.22 View Reel $1.85 $2.10 $2.05 $1.95 $1.89 $1.85 MouseReel Available A tariff of 38% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 : 5,000	TCAL9539	SMD/SMT	WQFN-24	I2C, Serial	16 I/O	With Interrupt	1.08 V	3.6 V	1 MHz	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape, MouseReel
Interface - I/O Expanders Automotive 16-bit 1. 65 to 3.6V I2C/SMBu TCA9539BQPWRQ1 Texas Instruments 1: $2.44 2,053In Stock New Product	Mfr. Part # TCA9539BQPWRQ1 Mouser Part # 595-TCA9539BQPWRQ1 New Product	Texas Instruments	Interface - I/O Expanders Automotive 16-bit 1. 65 to 3.6V I2C/SMBu Learn More about Texas Instruments ti tca9539x q1 i2c smbus io expander	Datasheet	2,053In Stock	$2.44 $1.81 $1.66 $1.48 View $1.40 $1.36 $1.34	Min.: 1 Mult.: 1 Max.: 1,001		SMD/SMT	TSSOP-24	I2C	17 I/O	With Interrupt	1.65 V	5.5 V	400 kHz	- 40 C	+ 125 C
Interface - I/O Expanders 16-bit translating I C-bus/SMBus I/O exp TCAL6416DGSR Texas Instruments 1: $2.09 6,601In Stock New Product	Mfr. Part # TCAL6416DGSR Mouser Part # 595-TCAL6416DGSR New Product	Texas Instruments	Interface - I/O Expanders 16-bit translating I C-bus/SMBus I/O exp Learn More about Texas Instruments ti tcal6416 expander	Datasheet	6,601In Stock	Cut Tape $2.09 $1.55 $1.41 $1.26 View Reel $1.12 $1.19 $1.15 $1.12 $1.12	Min.: 1 Mult.: 1 Max.: 1,001 : 5,000	TCAL6416	SMD/SMT	VSSOP-24	I2C, Serial	16 I/O	With Interrupt	1.08 V	3.6 V	1 MHz	- 40 C	+ 125 C		Reel, Cut Tape	With ESD Protection
Interface - I/O Expanders 16-bit translating I C-bus/SMBus I/O exp TCAL6416RADTOR Texas Instruments 1: $2.71 A tariff of 38% may be applied if shipping to the United States. 3,619In Stock New Product	Mfr. Part # TCAL6416RADTOR Mouser Part # 595-TCAL6416RADTOR New Product	Texas Instruments	Interface - I/O Expanders 16-bit translating I C-bus/SMBus I/O exp Learn More about Texas Instruments ti tcal6416r i2c bus smbus io expander	Datasheet	3,619In Stock	Cut Tape $2.71 $2.02 $1.85 $1.66 View Reel $1.49 $1.57 $1.53 $1.49 $1.49 MouseReel Available A tariff of 38% may be applied if shipping to the United States.	Min.: 1 Mult.: 1 Max.: 1,001 : 3,000	TCAL6416R	SMD/SMT	QFN-24	I2C	16 I/O	With Interrupt	1.08 V	3.6 V	1 MHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	4 kV
Interface - I/O Expanders 16-bit I2C/SMBus I/O expander with inter TCAL9539RPWR Texas Instruments 1: $2.06 1,894In Stock New Product	Mfr. Part # TCAL9539RPWR Mouser Part # 595-TCAL9539RPWR New Product	Texas Instruments	Interface - I/O Expanders 16-bit I2C/SMBus I/O expander with inter Learn More about Texas Instruments ti tcal9539r i2c bus smbus io expander	Datasheet	1,894In Stock	Cut Tape $2.06 $1.52 $1.39 $1.24 View Reel $1.10 $1.17 $1.13 $1.10 $1.10 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,001 : 3,000	TCAL9539R	SMD/SMT	TSSOP-24	I2C	16 I/O	With Interrupt	1.08 V	3.6 V	1 MHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 16-bit SPI bus I/O e xpander with interr TXE8116DGSR Texas Instruments 1: $1.44 7,830In Stock 5,000Expected 4/19/2027 New Product	Mfr. Part # TXE8116DGSR Mouser Part # 595-TXE8116DGSR New Product	Texas Instruments	Interface - I/O Expanders 16-bit SPI bus I/O e xpander with interr Learn More about Texas Instruments ti txe8116 16 bit spi bus i o expander	Datasheet	7,830In Stock 5,000Expected 4/19/2027	Cut Tape $1.44 $1.04 $0.947 $0.837 View Reel $0.719 $0.784 $0.753 $0.719 $0.719 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,001 : 5,000	TXE8116	SMD/SMT	VSSOP-24	SPI	16 I/O	Without Interrupt	1.65 V	5.5 V	10 MHz	- 40 C	+ 124 C		Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 22-bit SPI Level Translating I/O Expander with Agile I/O in HVQFN32 package PCAL9722HNMP NXP Semiconductors 1: $1.89 50,752In Stock	Mfr. Part # PCAL9722HNMP Mouser Part # 771-PCAL9722HNMP	NXP Semiconductors	Interface - I/O Expanders 22-bit SPI Level Translating I/O Expander with Agile I/O in HVQFN32 package Learn More about NXP Semiconductors nxp pcal9722 expanders	Datasheet	50,752In Stock	Cut Tape $1.89 $1.40 $1.27 $1.13 View Reel $0.938 $1.07 $1.03 $0.959 $0.938 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	PCAL9722	SMD/SMT	HVQFN-32	I2C, Serial		With Interrupt	1.1 V	5.5 V	5 MHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 22-bit SPI Level Translating I/O Expander with Agile I/O and AEC-Q100 Compliant in HVQFN32 package PCAL9722HN/Q900MP NXP Semiconductors 1: $2.26 45,457In Stock	Mfr. Part # PCAL9722HN/Q900MP Mouser Part # 771-PCAL9722HNQ900MP	NXP Semiconductors	Interface - I/O Expanders 22-bit SPI Level Translating I/O Expander with Agile I/O and AEC-Q100 Compliant in HVQFN32 package Learn More about NXP Semiconductors nxp pcal9722 expanders	Datasheet	45,457In Stock	Cut Tape $2.26 $1.67 $1.53 $1.36 View Reel $1.13 $1.29 $1.25 $1.13 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	PCAL9722	SMD/SMT	HVQFN-32	Serial, SPI		With Interrupt	1.1 V	5.5 V	5 MHz	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders NCA9535BY-Q100/SOT8041/HWQFN24 NCA9535BY-Q100HP Nexperia 1: $1.67 6,421In Stock	Mfr. Part # NCA9535BY-Q100HP Mouser Part # 771-NCA9535BY-Q100HP	Nexperia	Interface - I/O Expanders NCA9535BY-Q100/SOT8041/HWQFN24 Learn More about Nexperia nca9535 nca9539 nca9555 gipo expanders	Datasheet	6,421In Stock	Cut Tape $1.67 $1.23 $1.12 $0.988 Reel $0.845 View $0.929 $0.894 $0.888 $0.827	Min.: 1 Mult.: 1 : 3,000		SMD/SMT	HWQFN-24										Reel, Cut Tape
Interface - I/O Expanders NCA9535BY/SOT8041/HWQFN24 NCA9535BYHP Nexperia 1: $1.46 3,000In Stock	Mfr. Part # NCA9535BYHP Mouser Part # 771-NCA9535BYHP	Nexperia	Interface - I/O Expanders NCA9535BY/SOT8041/HWQFN24	Datasheet	3,000In Stock	Cut Tape $1.46 $1.07 $0.968 $0.858 Reel $0.716 View $0.806 $0.775 $0.765 $0.70	Min.: 1 Mult.: 1 : 3,000		SMD/SMT	HWQFN-24										Reel, Cut Tape
Interface - I/O Expanders NCA9539BY-Q100/SOT8041/HWQFN24 NCA9539BY-Q100HP Nexperia 1: $1.96 1,841In Stock	Mfr. Part # NCA9539BY-Q100HP Mouser Part # 771-NCA9539BY-Q100HP	Nexperia	Interface - I/O Expanders NCA9539BY-Q100/SOT8041/HWQFN24	Datasheet	1,841In Stock	Cut Tape $1.96 $1.45 $1.32 $1.18 Reel $0.989 View $1.11 $1.07 $0.968 MouseReel Available	Min.: 1 Mult.: 1 : 3,000		SMD/SMT	HWQFN-24										Reel, Cut Tape, MouseReel
Interface - I/O Expanders NCA9555BY-Q100/SOT8041/HWQFN24 NCA9555BY-Q100HP Nexperia 1: $1.86 3,103In Stock	Mfr. Part # NCA9555BY-Q100HP Mouser Part # 771-NCA9555BY-Q100HP	Nexperia	Interface - I/O Expanders NCA9555BY-Q100/SOT8041/HWQFN24 Learn More about Nexperia nca9535 nca9539 nca9555 gipo expanders	Datasheet	3,103In Stock	Cut Tape $1.86 $1.37 $1.24 $1.11 Reel $0.921 View $1.04 $0.999 $0.995 $0.883 MouseReel Available	Min.: 1 Mult.: 1 : 3,000		SMD/SMT	HWQFN-24	I2C, Serial, SMBus	16 I/O	With Interrupt	1.65 V	5.5 V	100 kHz, 400 kHz	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape, MouseReel
Interface - I/O Expanders NCA9555BY/SOT8041/HWQFN24 NCA9555BYHP Nexperia 1: $1.59 2,828In Stock	Mfr. Part # NCA9555BYHP Mouser Part # 771-NCA9555BYHP	Nexperia	Interface - I/O Expanders NCA9555BY/SOT8041/HWQFN24 Learn More about Nexperia nca9535 nca9539 nca9555 gipo expanders	Datasheet	2,828In Stock	Cut Tape $1.59 $1.17 $1.06 $0.939 Reel $0.786 View $0.883 $0.849 $0.842 $0.767 MouseReel Available	Min.: 1 Mult.: 1 : 3,000		SMD/SMT	HWQFN-24	I2C, Serial, SMBus	16 I/O	With Interrupt	1.65 V	5.5 V	100 kHz, 400 kHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
Interface - I/O Expanders In/Out I2C int MCP23008T-E/SO Microchip Technology 1: $1.37 27,172In Stock	Mfr. Part # MCP23008T-E/SO Mouser Part # 579-MCP23008T-E/SO	Microchip Technology	Interface - I/O Expanders In/Out I2C int	Datasheet	27,172In Stock	Cut Tape $1.37 $1.14 Reel $1.05 MouseReel Available	Min.: 1 Mult.: 1 : 1,100		SMD/SMT	SOIC-18	I2C, Serial	8 I/O	With Interrupt	1.8 V	5.5 V	1.7 MHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders 8B I/O Expander I2C interface MCP23009-E/MG Microchip Technology 1: $1.63 12,358In Stock	Mfr. Part # MCP23009-E/MG Mouser Part # 579-MCP23009-E/MG	Microchip Technology	Interface - I/O Expanders 8B I/O Expander I2C interface	Datasheet	12,358In Stock	$1.63 $1.36 $1.25	Min.: 1 Mult.: 1		SMD/SMT	QFN-16	I2C, Serial	8 I/O	With Interrupt	1.8 V	5.5 V	3.4 MHz	- 40 C	+ 125 C		Tube	4 kV
Interface - I/O Expanders In/Out SPI int MCP23S08-E/SO Microchip Technology 1: $1.54 22,942In Stock	Mfr. Part # MCP23S08-E/SO Mouser Part # 579-MCP23S08-E/SO	Microchip Technology	Interface - I/O Expanders In/Out SPI int	Datasheet	22,942In Stock	$1.54 $1.28 $1.27	Min.: 1 Mult.: 1		SMD/SMT	SOIC-18	Serial, SPI	8 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C		Tube	Without ESD Protection
Interface - I/O Expanders In/Out SPI int MCP23S08T-E/SO Microchip Technology 1: $1.54 10,475In Stock	Mfr. Part # MCP23S08T-E/SO Mouser Part # 579-MCP23S08T-E/SO	Microchip Technology	Interface - I/O Expanders In/Out SPI int	Datasheet	10,475In Stock	Cut Tape $1.54 $1.52 Reel $1.27 MouseReel Available	Min.: 1 Mult.: 1 : 1,100		SMD/SMT	SOIC-18	Serial, SPI	8 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders 16bit Input/Output Exp SPI interface MCP23S17-E/SO Microchip Technology 1: $1.69 32,395In Stock	Mfr. Part # MCP23S17-E/SO Mouser Part # 579-MCP23S17-E/SO	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp SPI interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	32,395In Stock	$1.69 $1.40 $1.28	Min.: 1 Mult.: 1	MCP23S17	SMD/SMT	SOIC-28	Serial, SPI	16 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C		Tube	4 kV
Interface - I/O Expanders 16bit Input/Output Exp SPI interface MCP23S17-E/SS Microchip Technology 1: $1.78 13,818In Stock	Mfr. Part # MCP23S17-E/SS Mouser Part # 579-MCP23S17-E/SS	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp SPI interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	13,818In Stock	$1.78 $1.49 $1.35	Min.: 1 Mult.: 1	MCP23S17	SMD/SMT	SSOP-28	Serial, SPI	16 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C		Tube	4 kV
Interface - I/O Expanders 16bit Input/Output Exp SPI interface MCP23S17T-E/ML Microchip Technology 1: $2.04 39,981In Stock	Mfr. Part # MCP23S17T-E/ML Mouser Part # 579-MCP23S17T-E/ML	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp SPI interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	39,981In Stock	Cut Tape $2.04 $1.69 Reel $1.54 MouseReel Available	Min.: 1 Mult.: 1 : 1,600	MCP23S17	SMD/SMT	QFN-28	Serial, SPI	16 I/O	With Interrupt	4.5 V	5.5 V	10 MHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	4 kV
Interface - I/O Expanders 16bit Input/Output Exp SPI interface MCP23S17T-E/SS Microchip Technology 1: $1.78 13,782In Stock 23,100Expected 11/2/2026	Mfr. Part # MCP23S17T-E/SS Mouser Part # 579-MCP23S17T-E/SS	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp SPI interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	13,782In Stock 23,100Expected 11/2/2026	Cut Tape $1.78 $1.49 Reel $1.35 MouseReel Available	Min.: 1 Mult.: 1 : 2,100	MCP23S17	SMD/SMT	SSOP-28	Serial, SPI	16 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	4 kV