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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 16bit Input/Output Exp SPI interface MCP23S17T-E/ML Microchip Technology 1: $2.65 42,401In 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	42,401In Stock	Cut Tape $2.65 $2.20 Reel $2.00 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/SO Microchip Technology 1: $2.20 21,316In Stock	Mfr. Part # MCP23S17T-E/SO Mouser Part # 579-MCP23S17T-E/SO	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp SPI interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	21,316In Stock	Cut Tape $2.20 $1.82 Reel $1.66 MouseReel Available	Min.: 1 Mult.: 1 : 1,600	MCP23S17	SMD/SMT	SOIC-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
Interface - I/O Expanders 16bit Input/Output Exp SPI interface MCP23S17T-E/SS Microchip Technology 1: $2.31 21,318In Stock 23,100Expected 11/17/2026	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	21,318In Stock 23,100Expected 11/17/2026	Cut Tape $2.31 $1.94 Reel $1.76 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
Interface - I/O Expanders 8bit I/O Expndr PCF8574N Texas Instruments 1: $3.93 12,519In Stock	Mfr. Part # PCF8574N Mouser Part # 595-PCF8574N	Texas Instruments	Interface - I/O Expanders 8bit I/O Expndr	Datasheet	12,519In Stock	$3.93 $2.93 $2.67 $2.38 View $2.25 $2.20 $2.09 $2.03 $1.99	Min.: 1 Mult.: 1	PCF8574	Through Hole	PDIP-16	I2C, Serial	8 I/O	With Interrupt	2.5 V	6 V	100 kHz	- 40 C	+ 85 C		Tube	1 kV
Interface - I/O Expanders Remote 16bit I2C and SMBux TCA9539RGER Texas Instruments 1: $3.08 11,911In Stock	Mfr. Part # TCA9539RGER Mouser Part # 595-TCA9539RGER	Texas Instruments	Interface - I/O Expanders Remote 16bit I2C and SMBux	Datasheet	11,911In Stock	Cut Tape $3.08 $2.29 $2.09 $1.87 Reel $1.57 View $1.77 $1.72 $1.65 $1.55 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	TCA9539	SMD/SMT	VQFN-24	I2C, Serial, SMBus	16 I/O	With Interrupt	1.65 V	5 V	400 kHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port MAX7301AAX+T Analog Devices / Maxim Integrated 1: $21.62 2,754In Stock	Mfr. Part # MAX7301AAX+T Mouser Part # 700-MAX7301AAXT	Analog Devices / Maxim Integrated	Interface - I/O Expanders 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port Learn More about Analog Devices / Maxim Integrated maxim programmable logic controllers	Datasheet	2,754In Stock	Cut Tape $21.62 $17.99 $15.69 $14.64 View Reel $13.65 $14.60 $14.44 $13.65 Quote MouseReel Available	Min.: 1 Mult.: 1 Max.: 2,203 : 1,000	MAX7301	SMD/SMT	SSOP-36	Serial, SPI	28 I/O	With Interrupt	2.5 V	5.5 V	26 MHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders 2-Wire-Interfaced 16-Bit I/O Port Expand MAX7311ATG+T Analog Devices / Maxim Integrated 1: $13.07 4,128In Stock	Mfr. Part # MAX7311ATG+T Mouser Part # 700-MAX7311ATGT	Analog Devices / Maxim Integrated	Interface - I/O Expanders 2-Wire-Interfaced 16-Bit I/O Port Expand	Datasheet	4,128In Stock	Cut Tape $13.07 $10.50 $9.83 $9.05 View Reel $8.13 $8.83 $8.78 $8.62 $8.13 MouseReel Available	Min.: 1 Mult.: 1 Max.: 3,302 : 2,500	MAX7311	SMD/SMT	TQFN-24	I2C, Serial, SMBus	16 I/O	With Interrupt	2.5 V	5.5 V	400 kHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders 2-Wire-Interfaced 16-Bit I/O Port Expand MAX7311AUG+T Analog Devices / Maxim Integrated 1: $16.00 2,335In Stock	Mfr. Part # MAX7311AUG+T Mouser Part # 700-MAX7311AUGT	Analog Devices / Maxim Integrated	Interface - I/O Expanders 2-Wire-Interfaced 16-Bit I/O Port Expand	Datasheet	2,335In Stock	Cut Tape $16.00 $12.55 $11.67 $10.73 View $10.62 $10.28 $10.17 $10.17 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,868	MAX7311	SMD/SMT	TSSOP-24	I2C, Serial, SMBus	16 I/O	With Interrupt	2.5 V	5.5 V	400 kHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel
Interface - I/O Expanders 16-Port I/O Expander with LED Intensity MAX7313ATG+T Analog Devices / Maxim Integrated 1: $12.48 26,136In Stock	Mfr. Part # MAX7313ATG+T Mouser Part # 700-MAX7313ATGT	Analog Devices / Maxim Integrated	Interface - I/O Expanders 16-Port I/O Expander with LED Intensity	Datasheet	26,136In Stock	Cut Tape $12.48 $9.70 $9.01 $8.26 $7.93 Reel $6.86 MouseReel Available	Min.: 1 Mult.: 1 Max.: 20,908 : 2,500	MAX7313	SMD/SMT	TQFN-24	I2C, Serial, SMBus	16 I/O	With Interrupt	2 V	3.6 V	400 kHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders Ultra low-power 16 Mbit Serial SPI Page EEPROM M95P16-IXCST/EF STMicroelectronics 1: $2.03 2,232In Stock	Mfr. Part # M95P16-IXCST/EF Mouser Part # 511-M95P16-IXCST/EF	STMicroelectronics	Interface - I/O Expanders Ultra low-power 16 Mbit Serial SPI Page EEPROM Learn More about STMicroelectronics stm m95p16 eeprom	Datasheet	2,232In Stock	Cut Tape $2.03 $1.81 $1.68 $1.56 View Reel $1.31 $1.50 $1.44 $1.43 $1.37 $1.31 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	M95P16	SMD/SMT	WLCSP-8										Reel, Cut Tape, MouseReel
Interface - I/O Expanders 8-bit translating I& sup2;C-bus/SMBus I/ TCAL6408PWR Texas Instruments 1: $1.99 3,158In Stock	Mfr. Part # TCAL6408PWR Mouser Part # 595-TCAL6408PWR	Texas Instruments	Interface - I/O Expanders 8-bit translating I& sup2;C-bus/SMBus I/ Learn More about Texas Instruments ti tcal6408 i2c bus smbus io expander	Datasheet	3,158In Stock	Cut Tape $1.99 $1.46 $1.33 $1.17 Reel $0.976 View $1.10 $1.06 $1.05 $0.956 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	TCAL6408	SMD/SMT	TSSOP-16	I2C, Serial, SMBus	8 I/O	With Interrupt	1.08 V	3.6 V	1 MHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	With ESD Protection
Interface - I/O Expanders 16-bit translating I C-bus/SMBus I/O exp TCAL6416RDTOR Texas Instruments 1: $3.32 2,221In Stock	Mfr. Part # TCAL6416RDTOR Mouser Part # 595-TCAL6416RDTOR	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	2,221In Stock	$3.32 $2.47 $2.25 $2.02 View $1.87 $1.81 $1.77 $1.65 $1.61	Min.: 1 Mult.: 1	TCAL6416R	SMD/SMT	X2QFN-24	I2C, Serial, SMBus		With Interrupt	1.08 V	3.6 V	1 MHz	- 40 C	+ 125 C			4 kV
Interface - I/O Expanders ULTRA LOW VOLTAGE AG ILE I/O EXPANDER TCAL9538DTUR Texas Instruments 1: $2.94 1,213In Stock	Mfr. Part # TCAL9538DTUR Mouser Part # 595-TCAL9538DTUR	Texas Instruments	Interface - I/O Expanders ULTRA LOW VOLTAGE AG ILE I/O EXPANDER Learn More about Texas Instruments ti tcal9538 expanders	Datasheet	1,213In Stock	$2.94 $2.18 $1.99 $1.78 View $1.68 $1.63 $1.60 $1.50 $1.47	Min.: 1 Mult.: 1	TCAL9538	SMD/SMT	X2QFN-16	I2C, Serial, SMBus	9 I/O	With Interrupt	1.08 V	3.6 V	1 MHz	- 40 C	+ 125 C
Interface - I/O Expanders ULTRA LOW VOLTAGE AG ILE I/O EXPANDER TCAL9538PWR Texas Instruments 1: $2.59 3,086In Stock	Mfr. Part # TCAL9538PWR Mouser Part # 595-TCAL9538PWR	Texas Instruments	Interface - I/O Expanders ULTRA LOW VOLTAGE AG ILE I/O EXPANDER Learn More about Texas Instruments ti tcal9538 expanders	Datasheet	3,086In Stock	$2.59 $1.90 $1.73 $1.55 View $1.46 $1.40 $1.39 $1.26 $1.23	Min.: 1 Mult.: 1	TCAL9538	SMD/SMT	TSSOP-16	I2C, Serial, SMBus	9 I/O	With Interrupt	1.08 V	3.6 V	1 MHz	- 40 C	+ 125 C
Interface - I/O Expanders ULTRA LOW VOLTAGE AG ILE I/O EXPANDER TCAL9538RSVR Texas Instruments 1: $2.50 6,536In Stock	Mfr. Part # TCAL9538RSVR Mouser Part # 595-TCAL9538RSVR	Texas Instruments	Interface - I/O Expanders ULTRA LOW VOLTAGE AG ILE I/O EXPANDER Learn More about Texas Instruments ti tcal9538 expanders	Datasheet	6,536In Stock	Cut Tape $2.50 $1.85 $1.68 $1.50 Reel $1.26 View $1.40 $1.35 $1.23 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	TCAL9538	SMD/SMT	UQFN-16	I2C, Serial, SMBus	9 I/O	With Interrupt	1.08 V	3.6 V	1 MHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel
Interface - I/O Expanders 16-bit low-voltage I C-bus and SMBus I/O TCAL9539PWR Texas Instruments 1: $2.80 3,454In Stock	Mfr. Part # TCAL9539PWR Mouser Part # 595-TCAL9539PWR	Texas Instruments	Interface - I/O Expanders 16-bit low-voltage I C-bus and SMBus I/O Learn More about Texas Instruments ti tcal9539 i2c bus smbus io expander	Datasheet	3,454In Stock	Cut Tape $2.80 $2.07 $1.89 $1.69 Reel $1.40 View $1.60 $1.57 $1.37 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	TCAL9539	SMD/SMT	TSSOP-24	I2C, Serial	16 I/O	With Interrupt	1.08 V	3.6 V	1 MHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel
Interface - I/O Expanders Interface IO Expander TSSOP-24 T&R 3K PI4IOE5V6416ALEX Diodes Incorporated 1: $2.55 1,579In Stock	Mfr. Part # PI4IOE5V6416ALEX Mouser Part # 621-PI4IOE5V6416ALEX	Diodes Incorporated	Interface - I/O Expanders Interface IO Expander TSSOP-24 T&R 3K Learn More about Diodes Incorporated diodes pi4ioe5v6416 io expander		1,579In Stock	Cut Tape $2.55 $1.87 $1.65 $1.51 View Reel $1.26 $1.47 $1.44 $1.43 $1.26 MouseReel Available	Min.: 1 Mult.: 1 : 3,000		SMD/SMT	TSSOP-24	I2C, Serial	16 I/O	With Interrupt	1.65 V	5.5 V	1 MHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders Interface IO Expander V-QFN4040-24 T&R 3.5K PI4IOE5V6416AZDEX Diodes Incorporated 1: $1.79 3,973In Stock 3,819Expected 9/10/2027	Mfr. Part # PI4IOE5V6416AZDEX Mouser Part # 621-PI4IOE5V6416AZDE	Diodes Incorporated	Interface - I/O Expanders Interface IO Expander V-QFN4040-24 T&R 3.5K Learn More about Diodes Incorporated diodes pi4ioe5v6416 io expander		3,973In Stock 3,819Expected 9/10/2027	Cut Tape $1.79 $1.30 $1.18 $1.04 Reel $0.974 View $0.974 $0.846 MouseReel Available	Min.: 1 Mult.: 1 : 3,500		SMD/SMT	TQFN-24	I2C, Serial	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 Interface IO Expander W-QFN5050-32 T&R 2.5K PI4IOE5V6524ZHEX Diodes Incorporated 1: $2.81 4,832In Stock	Mfr. Part # PI4IOE5V6524ZHEX Mouser Part # 621-PI4IOE5V6524ZHEX	Diodes Incorporated	Interface - I/O Expanders Interface IO Expander W-QFN5050-32 T&R 2.5K Learn More about Diodes Incorporated diodes pi4ioe5v6416 io expander		4,832In Stock	Cut Tape $2.81 $2.08 $1.87 $1.69 $1.59 Reel $1.59 MouseReel Available	Min.: 1 Mult.: 1 Max.: 320 : 2,500		SMD/SMT	WQFN5050-32	I2C, Serial	24 I/O	With Interrupt	1.65 V	5.5 V	1 MHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders NCA9535PW/SOT355/TSSOP24 NCA9535PWJ Nexperia 1: $1.85 2,431In Stock	Mfr. Part # NCA9535PWJ Mouser Part # 771-NCA9535PWJ	Nexperia	Interface - I/O Expanders NCA9535PW/SOT355/TSSOP24 Learn More about Nexperia nca9535 nca9539 nca9555 gipo expanders	Datasheet	2,431In Stock	Cut Tape $1.85 $1.34 $1.20 $1.06 Reel $0.874 View $0.996 $0.956 $0.914 $0.85 MouseReel Available	Min.: 1 Mult.: 1 : 2,500		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
Interface - I/O Expanders NCA9539PW/SOT355/TSSOP24 NCA9539PWJ Nexperia 1: $1.89 2,845In Stock	Mfr. Part # NCA9539PWJ Mouser Part # 771-NCA9539PWJ	Nexperia	Interface - I/O Expanders NCA9539PW/SOT355/TSSOP24 Learn More about Nexperia nca9535 nca9539 nca9555 gipo expanders	Datasheet	2,845In Stock	Cut Tape $1.89 $1.38 $1.24 $1.10 Reel $0.881 View $1.03 $0.991 $0.963 $0.842 MouseReel Available	Min.: 1 Mult.: 1 : 2,500		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
Interface - I/O Expanders PCA9539PW/SOT355/TSSOP24 PCA9539PWJ Nexperia 1: $2.50 3,574In Stock	Mfr. Part # PCA9539PWJ Mouser Part # 771-PCA9539PWJ	Nexperia	Interface - I/O Expanders PCA9539PW/SOT355/TSSOP24	Datasheet	3,574In Stock	Cut Tape $2.50 $1.83 $1.68 $1.50 Reel $1.29 View $1.40 $1.35 $1.23 MouseReel Available	Min.: 1 Mult.: 1 : 2,500		SMD/SMT	TSSOP-24	I2C, Serial	16 I/O	With Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel	With ESD Protection
Interface - I/O Expanders 14-bit SPI Level Translating I/O Expander with Agile I/O in HVQFN24 package PCAL9714HNMP NXP Semiconductors 1: $1.94 9,628In Stock	Mfr. Part # PCAL9714HNMP Mouser Part # 771-PCAL9714HNMP	NXP Semiconductors	Interface - I/O Expanders 14-bit SPI Level Translating I/O Expander with Agile I/O in HVQFN24 package Learn More about NXP Semiconductors nxp pcal9714 expanders	Datasheet	9,628In Stock	Cut Tape $1.94 $1.42 $1.28 $1.14 View Reel $0.931 $1.07 $1.03 $1.02 $0.98 $0.931	Min.: 1 Mult.: 1 : 6,000	PCAL9714	SMD/SMT	HVQFN-24	I2C, Serial		With Interrupt	1.1 V	5.5 V	5 MHz	- 40 C	+ 85 C		Reel, Cut Tape	2 kV
Interface - I/O Expanders 14-bit SPI Level Translating I/O Expander with Agile I/O and AEC-Q100 Compliant in HVQFN24 package PCAL9714HN/Q900MP NXP Semiconductors 1: $2.28 7,200In Stock	Mfr. Part # PCAL9714HN/Q900MP Mouser Part # 771-PCAL9714HNQ900MP	NXP Semiconductors	Interface - I/O Expanders 14-bit SPI Level Translating I/O Expander with Agile I/O and AEC-Q100 Compliant in HVQFN24 package Learn More about NXP Semiconductors nxp pcal9714 expanders	Datasheet	7,200In Stock	Cut Tape $2.28 $1.68 $1.52 $1.37 View Reel $1.12 $1.27 $1.23 $1.19 $1.16 $1.12	Min.: 1 Mult.: 1 : 6,000	PCAL9714	SMD/SMT	HVQFN-24	I2C, Serial		With Interrupt	1.1 V	5.5 V	5 MHz	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape	2 kV
Interface - I/O Expanders 8-Bit I2C-Controlled GPIO Expander FXL6408UMX onsemi 1: $0.767 74,098In Stock 45,000Expected 2/2/2027	Mfr. Part # FXL6408UMX Mouser Part # 512-FXL6408UMX	onsemi	Interface - I/O Expanders 8-Bit I2C-Controlled GPIO Expander	Datasheet	74,098In Stock 45,000Expected 2/2/2027	Cut Tape $0.767 $0.541 $0.477 $0.412 View Reel $0.342 $0.387 $0.363 $0.348 $0.343 $0.342 MouseReel Available	Min.: 1 Mult.: 1 Max.: 5,000 : 5,000	FXL6408	SMD/SMT	UQFN-16	I2C, Serial	8 I/O	With Interrupt	1.65 V	3.6 V	400 kHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel	4 kV