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Microchip 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.	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 8-bit I/O Expander I2C interface MCP23009-E/P Microchip Technology 1: $1.811 277In Stock	Mfr. Part # MCP23009-E/P Mouser Part # 579-MCP23009-E/P	Microchip Technology	Interface - I/O Expanders 8-bit I/O Expander I2C interface	Datasheet	277In Stock	$1.811 $1.504 $1.390	Min.: 1 Mult.: 1	Through Hole	PDIP-18	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 8-bit I/O Expander I2C interface MCP23009-E/SO Microchip Technology 1: $1.732 315In Stock	Mfr. Part # MCP23009-E/SO Mouser Part # 579-MCP23009-E/SO	Microchip Technology	Interface - I/O Expanders 8-bit I/O Expander I2C interface	Datasheet	315In Stock	$1.732 $1.447 $1.310	Min.: 1 Mult.: 1	SMD/SMT	SOIC-18	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 8-bit I/O Expander I2C interface MCP23009-E/SS Microchip Technology 1: $1.732 837In Stock 2.546Expected 12/7/2026	Mfr. Part # MCP23009-E/SS Mouser Part # 579-MCP23009-E/SS	Microchip Technology	Interface - I/O Expanders 8-bit I/O Expander I2C interface	Datasheet	837In Stock 2.546Expected 12/7/2026	$1.732 $1.447 $1.310	Min.: 1 Mult.: 1	SMD/SMT	SSOP-20	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 16 bit In/Out MCP23016-I/SO Microchip Technology 1: $2.427 564In Stock	Mfr. Part # MCP23016-I/SO Mouser Part # 579-MCP23016-I/SO	Microchip Technology	Interface - I/O Expanders 16 bit In/Out	Datasheet	564In Stock	$2.427 $2.028 $2.005	Min.: 1 Mult.: 1	SMD/SMT	SOIC-28	I2C, Serial	16 I/O	With Interrupt	2 V	5.5 V	400 kHz	- 40 C	+ 85 C	Tube	Without ESD Protection
Interface - I/O Expanders 16 bit In/Out MCP23016-I/SP Microchip Technology 1: $2.552 491In Stock	Mfr. Part # MCP23016-I/SP Mouser Part # 579-MCP23016-I/SP	Microchip Technology	Interface - I/O Expanders 16 bit In/Out	Datasheet	491In Stock	$2.552 $2.119 $2.108	Min.: 1 Mult.: 1	Through Hole	SPDIP-28	I2C, Serial	16 I/O	With Interrupt	2 V	5.5 V	400 kHz	- 40 C	+ 85 C	Tube	Without ESD Protection
Interface - I/O Expanders 16B I/O Expander I2C interface MCP23018-E/SO Microchip Technology 1: $2.324 551In Stock	Mfr. Part # MCP23018-E/SO Mouser Part # 579-MCP23018-E/SO	Microchip Technology	Interface - I/O Expanders 16B I/O Expander I2C interface	Datasheet	551In Stock	$2.324 $1.925 $1.754	Min.: 1 Mult.: 1	SMD/SMT	SOIC-28	I2C, Serial	16 I/O	With Interrupt	1.8 V	5.5 V	3.4 MHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders 16B I/O Expander I2C interface MCP23018-E/SP Microchip Technology 1: $2.427 383In Stock	Mfr. Part # MCP23018-E/SP Mouser Part # 579-MCP23018-E/SP	Microchip Technology	Interface - I/O Expanders 16B I/O Expander I2C interface	Datasheet	383In Stock	$2.427 $2.028 $1.834	Min.: 1 Mult.: 1	Through Hole	SPDIP-28	I2C, Serial	16 I/O	With Interrupt	1.8 V	5.5 V	3.4 MHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders In/Out SPI int MCP23S08-E/P Microchip Technology 1: $1.834 1.025In Stock	Mfr. Part # MCP23S08-E/P Mouser Part # 579-MCP23S08-E/P	Microchip Technology	Interface - I/O Expanders In/Out SPI int	Datasheet	1.025In Stock	$1.834 $1.538 $1.492	Min.: 1 Mult.: 1	Through Hole	PDIP-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 8-bit I/O Expander SPI interface MCP23S09-E/P Microchip Technology 1: $1.925 211In Stock	Mfr. Part # MCP23S09-E/P Mouser Part # 579-MCP23S09-E/P	Microchip Technology	Interface - I/O Expanders 8-bit I/O Expander SPI interface	Datasheet	211In Stock	$1.925 $1.595 $1.458	Min.: 1 Mult.: 1	Through Hole	PDIP-18	Serial, SPI	8 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	Tube	4 kV
Interface - I/O Expanders 8-bit I/O Expander SPI interface MCP23S09-E/SO Microchip Technology 1: $1.846 283In Stock 294Expected 10/29/2026	Mfr. Part # MCP23S09-E/SO Mouser Part # 579-MCP23S09-E/SO	Microchip Technology	Interface - I/O Expanders 8-bit I/O Expander SPI interface	Datasheet	283In Stock 294Expected 10/29/2026	$1.846 $1.538 $1.413	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	4 kV
Interface - I/O Expanders 8-bit I/O Expander SPI interface MCP23S09T-E/SO Microchip Technology 1: $1.937 1.086In Stock	Mfr. Part # MCP23S09T-E/SO Mouser Part # 579-MCP23S09T-E/SO	Microchip Technology	Interface - I/O Expanders 8-bit I/O Expander SPI interface	Datasheet	1.086In Stock	Cut Tape $1.937 $1.629 Reel $1.470 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	4 kV
Interface - I/O Expanders 16B I/O Expander SPI interface MCP23S18-E/SO Microchip Technology 1: $2.449 248In Stock 945Expected 1/4/2027	Mfr. Part # MCP23S18-E/SO Mouser Part # 579-MCP23S18-E/SO	Microchip Technology	Interface - I/O Expanders 16B I/O Expander SPI interface	Datasheet	248In Stock 945Expected 1/4/2027	$2.449 $2.051 $1.857	Min.: 1 Mult.: 1	SMD/SMT	SOIC-28	Serial, SPI	16 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders 16B I/O Expander SPI interface MCP23S18-E/SP Microchip Technology 1: $2.575 500In Stock	Mfr. Part # MCP23S18-E/SP Mouser Part # 579-MCP23S18-E/SP	Microchip Technology	Interface - I/O Expanders 16B I/O Expander SPI interface	Datasheet	500In Stock	$2.575 $2.142 $1.937	Min.: 1 Mult.: 1	Through Hole	PDIP-28	Serial, SPI	16 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders Digital CAN I/O MCP25020-I/P Microchip Technology 1: $4.341 117In Stock	Mfr. Part # MCP25020-I/P Mouser Part # 579-MCP25020-I/P	Microchip Technology	Interface - I/O Expanders Digital CAN I/O	Datasheet	117In Stock	$4.341 $3.623 $3.600	Min.: 1 Mult.: 1	Through Hole	PDIP-14	CAN	8 I/O	Without Interrupt	2.75 V	5.5 V	25 MHz	- 65 C	+ 150 C	Tube	3.5 kV
Interface - I/O Expanders Digital CAN I/O MCP25020-I/SL Microchip Technology 1: $4.147 89In Stock	Mfr. Part # MCP25020-I/SL Mouser Part # 579-MCP25020-I/SL	Microchip Technology	Interface - I/O Expanders Digital CAN I/O	Datasheet	89In Stock	$4.147 $3.452 $3.418	Min.: 1 Mult.: 1	SMD/SMT	SOIC-14	CAN	8 I/O	Without Interrupt	2.75 V	5.5 V	25 MHz	- 40 C	+ 85 C	Tube	3.5 kV
Interface - I/O Expanders Mixed signal Expandr MCP25050-E/P Microchip Technology 1: $6.915 27In Stock	Mfr. Part # MCP25050-E/P Mouser Part # 579-MCP25050-E/P	Microchip Technology	Interface - I/O Expanders Mixed signal Expandr	Datasheet	27In Stock	$6.915 $5.776 $5.731	Min.: 1 Mult.: 1	Through Hole	PDIP-14	CAN	8 I/O	Without Interrupt	5.5 V	5.5 V	25 MHz	- 65 C	+ 150 C	Tube	3.5 kV
Interface - I/O Expanders 16 bit In/Out MCP23016T-I/SS Microchip Technology 2.100: $2.153 Non-Stocked Lead-Time 7 Weeks	Mfr. Part # MCP23016T-I/SS Mouser Part # 579-MCP23016T-I/SS	Microchip Technology	Interface - I/O Expanders 16 bit In/Out	Datasheet	Non-Stocked Lead-Time 7 Weeks	Reel $2.153	Min.: 2.100 Mult.: 2.100 : 2.100	SMD/SMT	SSOP-28	I2C, Serial	16 I/O	With Interrupt	5.5 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel	Without ESD Protection
Interface - I/O Expanders Digital CAN I/O MCP25020-E/P Microchip Technology 1: $4.887 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # MCP25020-E/P Mouser Part # 579-MCP25020-E/P	Microchip Technology	Interface - I/O Expanders Digital CAN I/O	Datasheet	Non-Stocked Lead-Time 10 Weeks	$4.887 $4.067 $3.703	Min.: 1 Mult.: 1	Through Hole	PDIP-14				5.5 V	5.5 V		- 65 C	+ 150 C	Tube
Interface - I/O Expanders Digital CAN I/O MCP25020-E/SL Microchip Technology 1: $5.013 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # MCP25020-E/SL Mouser Part # 579-MCP25020-E/SL	Microchip Technology	Interface - I/O Expanders Digital CAN I/O	Datasheet	Non-Stocked Lead-Time 10 Weeks	$5.013 $4.204 $4.158	Min.: 1 Mult.: 1	SMD/SMT	SOIC-14				5.5 V	5.5 V		- 65 C	+ 150 C	Tube
Interface - I/O Expanders Digital CAN I/O MCP25020T-E/SL Microchip Technology 2.600: $3.703 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # MCP25020T-E/SL Mouser Part # 579-MCP25020T-E/SL	Microchip Technology	Interface - I/O Expanders Digital CAN I/O	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel $3.703	Min.: 2.600 Mult.: 2.600 : 2.600	SMD/SMT	SOIC-14				5.5 V	5.5 V		- 65 C	+ 150 C	Reel
Interface - I/O Expanders Digital CAN I/O MCP25020T-I/SL Microchip Technology 2.600: $3.418 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # MCP25020T-I/SL Mouser Part # 579-MCP25020T-I/SL	Microchip Technology	Interface - I/O Expanders Digital CAN I/O	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel $3.418	Min.: 2.600 Mult.: 2.600 : 2.600	SMD/SMT	SOIC-14				5.5 V	5.5 V		- 65 C	+ 150 C	Reel
Interface - I/O Expanders Digital 1 Wire capab MCP25025-I/P Microchip Technology 1: $4.933 Non-Stocked Lead-Time 9 Weeks	Mfr. Part # MCP25025-I/P Mouser Part # 579-MCP25025-I/P	Microchip Technology	Interface - I/O Expanders Digital 1 Wire capab	Datasheet	Non-Stocked Lead-Time 9 Weeks	$4.933 $4.124 $4.090	Min.: 1 Mult.: 1	Through Hole	PDIP-14	CAN	8 I/O	Without Interrupt	2.7 V	5.5 V	4 MHz	- 65 C	+ 150 C	Tube	3.5 kV
Interface - I/O Expanders Digital 1 Wire capab MCP25025T-I/SL Microchip Technology 2.600: $3.703 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # MCP25025T-I/SL Mouser Part # 579-MCP25025T-I/SL	Microchip Technology	Interface - I/O Expanders Digital 1 Wire capab	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel $3.703	Min.: 2.600 Mult.: 2.600 : 2.600	SMD/SMT	SOIC-14				5.5 V	5.5 V		- 65 C	+ 150 C	Reel
Interface - I/O Expanders Mixed signal Expandr MCP25050T-E/SL Microchip Technology 2.600: $5.013 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # MCP25050T-E/SL Mouser Part # 579-MCP25050T-E/SL	Microchip Technology	Interface - I/O Expanders Mixed signal Expandr	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel $5.013	Min.: 2.600 Mult.: 2.600 : 2.600	SMD/SMT	SOIC-14				5.5 V	5.5 V		- 65 C	+ 150 C	Reel
Interface - I/O Expanders Mixed signal Expandr MCP25050T-I/SL Microchip Technology 2.600: $4.557 Non-Stocked Lead-Time 9 Weeks	Mfr. Part # MCP25050T-I/SL Mouser Part # 579-MCP25050T-I/SL	Microchip Technology	Interface - I/O Expanders Mixed signal Expandr	Datasheet	Non-Stocked Lead-Time 9 Weeks	Reel $4.557	Min.: 2.600 Mult.: 2.600 : 2.600	SMD/SMT	SOIC-14				5.5 V	5.5 V		- 65 C	+ 150 C	Reel

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