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QFN-28 Interface - I/O Expanders

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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	ECAD Model	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 16 bit In/Out MCP23016-I/ML Microchip Technology 1: $2.27 1,145In Stock	Mfr. Part # MCP23016-I/ML Mouser Part # 579-MCP23016-I/ML	Microchip Technology	Interface - I/O Expanders 16 bit In/Out	Datasheet	1,145In Stock	$2.27 $1.90 $1.89	Min.: 1 Mult.: 1				SMD/SMT	QFN-28	I2C, Serial	16 I/O	With Interrupt	5.5 V	5.5 V	400 kHz	- 40 C	+ 85 C	Tube	Without ESD Protection
	Interface - I/O Expanders 16 bit In/Out MCP23016T-I/ML Microchip Technology 1: $2.27 1,826In Stock	Mfr. Part # MCP23016T-I/ML Mouser Part # 579-MCP23016T-I/ML	Microchip Technology	Interface - I/O Expanders 16 bit In/Out	Datasheet	1,826In Stock	Cut Tape $2.27 $2.25 Reel $1.89 MouseReel Available	Min.: 1 Mult.: 1 : 1,600				SMD/SMT	QFN-28	I2C, Serial	16 I/O	With Interrupt	5.5 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	Without ESD Protection
	Interface - I/O Expanders 16bit Input/Output Exp SPI interface MCP23S17T-E/ML Microchip Technology 1: $2.04 40,137In 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	40,137In 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 I2C interface MCP23017-E/ML Microchip Technology 1: $1.90 44,644In Stock	Mfr. Part # MCP23017-E/ML Mouser Part # 579-MCP23017-E/ML	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp I2C interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	44,644In Stock	$1.90 $1.59 $1.44	Min.: 1 Mult.: 1			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	Tube	4 kV
	Interface - I/O Expanders 16bit Input/Output Exp I2C interface MCP23017T-E/ML Microchip Technology 1: $1.90 18,062In 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	18,062In Stock	Cut Tape $1.90 $1.59 Reel $1.44 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 16 CHAN LOW VOLT I2C GPIO +PWM SX1509BIULTRT Semtech 1: $3.52 20,403In Stock 27,000Expected 10/14/2026	Mfr. Part # SX1509BIULTRT Mouser Part # 947-SX1509BIULTRT	Semtech	Interface - I/O Expanders 16 CHAN LOW VOLT I2C GPIO +PWM Learn More about Semtech sx1508b sx1509b gpio	Datasheet	20,403In Stock 27,000Expected 10/14/2026	Cut Tape $3.52 $2.65 $2.43 $2.19 View Reel $1.92 $2.08 $2.06 $2.00 $1.92 MouseReel Available	Min.: 1 Mult.: 1 : 3,000			SX1509	SMD/SMT	QFN-28	I2C, Serial	16 I/O	With Interrupt	1.2 V	3.6 V	2 MHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
	Interface - I/O Expanders 16 CHAN LOW VOLT GPIO + PWM SX1509QBIULTRT Semtech 1: $3.52 8,393In Stock	Mfr. Part # SX1509QBIULTRT Mouser Part # 947-SX1509QBIULTRT	Semtech	Interface - I/O Expanders 16 CHAN LOW VOLT GPIO + PWM Learn More about Semtech sx1508b sx1509b gpio	Datasheet	8,393In Stock	Cut Tape $3.52 $2.65 $2.43 $2.19 View Reel $1.92 $2.08 $2.06 $2.00 $1.92 MouseReel Available	Min.: 1 Mult.: 1 : 3,000			SX1509	SMD/SMT	QFN-28	I2C, Serial	16 I/O	With Interrupt	1.2 V	3.6 V	2 MHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
	Interface - I/O Expanders 16bit Input/Output Exp SPI interface MCP23S17-E/ML Microchip Technology 1: $2.04 3,952In Stock 9,760Expected 12/3/2026	Mfr. Part # MCP23S17-E/ML Mouser Part # 579-MCP23S17-E/ML	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp SPI interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	3,952In Stock 9,760Expected 12/3/2026	$2.04 $1.69 $1.54	Min.: 1 Mult.: 1			MCP23S17	SMD/SMT	QFN-28	Serial, SPI	16 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	Tube	4 kV