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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CAD) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	ECAD Model	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 In/Out I2C int MCP23008-E/SS Microchip Technology 1: $1.96 8,272In Stock	Mfr. Part # MCP23008-E/SS Mouser Part # 579-MCP23008-E/SS	Microchip Technology	Interface - I/O Expanders In/Out I2C int	Datasheet	8,272In Stock	$1.96 $1.94 $1.73 $1.61 $1.60	Min.: 1 Mult.: 1			SMD/SMT	SSOP-20	I2C, Serial	8 I/O	With Interrupt	1.8 V	5.5 V	1.7 MHz	- 40 C	+ 125 C	Tube	Without ESD Protection
	Interface - I/O Expanders In/Out I2C int MCP23008T-E/SO Microchip Technology 1: $1.97 25,982In Stock	Mfr. Part # MCP23008T-E/SO Mouser Part # 579-MCP23008T-E/SO	Microchip Technology	Interface - I/O Expanders In/Out I2C int	Datasheet	25,982In Stock	Cut Tape $1.97 $1.64 Reel $1.51 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 8bit Input/Output Exp I2C interface MCP23008-E/ML Microchip Technology 1: $2.15 7,477In Stock 4,095Expected 2026-12-24	Mfr. Part # MCP23008-E/ML Mouser Part # 579-MCP23008-E/ML	Microchip Technology	Interface - I/O Expanders 8bit Input/Output Exp I2C interface	Datasheet	7,477In Stock 4,095Expected 2026-12-24	$2.15 $1.80 $1.63	Min.: 1 Mult.: 1			SMD/SMT	QFN-20	I2C, Serial	8 I/O	With Interrupt	1.8 V	5.5 V	1.7 MHz	- 40 C	+ 125 C	Tube	Without ESD Protection
	Interface - I/O Expanders In/Out I2C int MCP23008-E/P Microchip Technology 1: $2.22 2,902In Stock	Mfr. Part # MCP23008-E/P Mouser Part # 579-MCP23008-E/P	Microchip Technology	Interface - I/O Expanders In/Out I2C int	Datasheet	2,902In Stock	$2.22 $1.84 $1.83	Min.: 1 Mult.: 1			Through Hole	PDIP-18	I2C, Serial	8 I/O	With Interrupt	1.8 V	5.5 V	1.7 MHz	- 40 C	+ 125 C	Tube	Without ESD Protection
	Interface - I/O Expanders In/Out I2C int MCP23008-E/SO Microchip Technology 1: $1.97 5,667In Stock	Mfr. Part # MCP23008-E/SO Mouser Part # 579-MCP23008-E/SO	Microchip Technology	Interface - I/O Expanders In/Out I2C int	Datasheet	5,667In Stock	$1.97 $1.64 $1.51	Min.: 1 Mult.: 1			SMD/SMT	SOIC-18	I2C, Serial	8 I/O	With Interrupt	1.8 V	5.5 V	1.7 MHz	- 40 C	+ 125 C	Tube	Without ESD Protection
	Interface - I/O Expanders 8bit Input/Output Exp I2C interface MCP23008T-E/ML Microchip Technology 1: $2.15 10,129In Stock	Mfr. Part # MCP23008T-E/ML Mouser Part # 579-MCP23008T-E/ML	Microchip Technology	Interface - I/O Expanders 8bit Input/Output Exp I2C interface	Datasheet	10,129In Stock	Cut Tape $2.15 $1.80 Reel $1.63 MouseReel Available	Min.: 1 Mult.: 1 : 3,300			SMD/SMT	QFN-20	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 In/Out I2C int MCP23008T-E/SS Microchip Technology 1: $2.15 10,944In Stock	Mfr. Part # MCP23008T-E/SS Mouser Part # 579-MCP23008T-E/SS	Microchip Technology	Interface - I/O Expanders In/Out I2C int	Datasheet	10,944In Stock	Cut Tape $2.15 $1.80 Reel $1.63 MouseReel Available	Min.: 1 Mult.: 1 : 1,600			SMD/SMT	SSOP-20	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