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Interface - I/O Expanders

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) 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	Qualification	Packaging	ESD Protection
Interface - I/O Expanders In/Out I2C int MCP23008-E/P Microchip Technology 1: £1.15 3,000In Stock	Mfr. Part No. MCP23008-E/P Mouser Part No 579-MCP23008-E/P	Microchip Technology	Interface - I/O Expanders In/Out I2C int	Datasheet	3,000In Stock	£1.15 £0.969	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 8-bit I/O Expander I2C interface MCP23009-E/P Microchip Technology 1: £1.20 277In Stock	Mfr. Part No. MCP23009-E/P Mouser Part No 579-MCP23009-E/P	Microchip Technology	Interface - I/O Expanders 8-bit I/O Expander I2C interface	Datasheet	277In Stock	£1.20 £0.995 £0.917	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: £1.14 336In Stock	Mfr. Part No. MCP23009-E/SO Mouser Part No 579-MCP23009-E/SO	Microchip Technology	Interface - I/O Expanders 8-bit I/O Expander I2C interface	Datasheet	336In Stock	£1.14 £0.952 £0.863	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: £1.14 1,042In Stock 2,546On Order	Mfr. Part No. MCP23009-E/SS Mouser Part No 579-MCP23009-E/SS	Microchip Technology	Interface - I/O Expanders 8-bit I/O Expander I2C interface	Datasheet	1,042In Stock 2,546On Order	£1.14 £0.952 £0.863	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 8-bit I/O Expander I2C interface MCP23009T-E/SS Microchip Technology 1: £1.22 497In Stock 1,600Expected 15/10/2026	Mfr. Part No. MCP23009T-E/SS Mouser Part No 579-MCP23009T-E/SS	Microchip Technology	Interface - I/O Expanders 8-bit I/O Expander I2C interface	Datasheet	497In Stock 1,600Expected 15/10/2026	Cut Tape £1.22 £1.03 Reel £0.917 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	3.4 MHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	4 kV
Interface - I/O Expanders 16 bit In/Out MCP23016-I/SP Microchip Technology 1: £1.68 491In Stock	Mfr. Part No. MCP23016-I/SP Mouser Part No 579-MCP23016-I/SP	Microchip Technology	Interface - I/O Expanders 16 bit In/Out	Datasheet	491In Stock	£1.68 £1.41	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: £1.53 551In Stock	Mfr. Part No. MCP23018-E/SO Mouser Part No 579-MCP23018-E/SO	Microchip Technology	Interface - I/O Expanders 16B I/O Expander I2C interface	Datasheet	551In Stock	£1.53 £1.27 £1.15	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: £1.60 389In Stock	Mfr. Part No. MCP23018-E/SP Mouser Part No 579-MCP23018-E/SP	Microchip Technology	Interface - I/O Expanders 16B I/O Expander I2C interface	Datasheet	389In Stock	£1.60 £1.34 £1.20	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 8-bit I/O Expander SPI interface MCP23S09-E/P Microchip Technology 1: £1.27 211In Stock	Mfr. Part No. MCP23S09-E/P Mouser Part No 579-MCP23S09-E/P	Microchip Technology	Interface - I/O Expanders 8-bit I/O Expander SPI interface	Datasheet	211In Stock	£1.27 £1.05 £0.96	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: £1.21 288In Stock 294Expected 17/11/2026	Mfr. Part No. MCP23S09-E/SO Mouser Part No 579-MCP23S09-E/SO	Microchip Technology	Interface - I/O Expanders 8-bit I/O Expander SPI interface	Datasheet	288In Stock 294Expected 17/11/2026	£1.21 £1.01 £0.934	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: £1.27 1,086In Stock	Mfr. Part No. MCP23S09T-E/SO Mouser Part No 579-MCP23S09T-E/SO	Microchip Technology	Interface - I/O Expanders 8-bit I/O Expander SPI interface	Datasheet	1,086In Stock	Cut Tape £1.27 £1.07 Reel £0.969 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: £1.62 641In Stock 945Expected 04/01/2027	Mfr. Part No. MCP23S18-E/SO Mouser Part No 579-MCP23S18-E/SO	Microchip Technology	Interface - I/O Expanders 16B I/O Expander SPI interface	Datasheet	641In Stock 945Expected 04/01/2027	£1.62 £1.35 £1.22	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: £1.69 563In Stock	Mfr. Part No. MCP23S18-E/SP Mouser Part No 579-MCP23S18-E/SP	Microchip Technology	Interface - I/O Expanders 16B I/O Expander SPI interface	Datasheet	563In Stock	£1.69 £1.41 £1.27	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: £2.86 117In Stock	Mfr. Part No. MCP25020-I/P Mouser Part No 579-MCP25020-I/P	Microchip Technology	Interface - I/O Expanders Digital CAN I/O	Datasheet	117In Stock	£2.86 £2.41	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: £2.73 89In Stock	Mfr. Part No. MCP25020-I/SL Mouser Part No 579-MCP25020-I/SL	Microchip Technology	Interface - I/O Expanders Digital CAN I/O	Datasheet	89In Stock	£2.73 £2.28	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: £4.56 27In Stock	Mfr. Part No. MCP25050-E/P Mouser Part No 579-MCP25050-E/P	Microchip Technology	Interface - I/O Expanders Mixed signal Expandr	Datasheet	27In Stock	£4.56 £3.82	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, Open Drain I/O Expander with I2C Interface MCP23S18T-E/MJVAO Microchip Technology 1: £1.62 11In Stock Factory Special Order	Mfr. Part No. MCP23S18T-E/MJVAO Mouser Part No 579-MCP23S18T-EMJVAO Factory Special Order	Microchip Technology	Interface - I/O Expanders 16-Bit, Open Drain I/O Expander with I2C Interface	Datasheet	11In Stock	Cut Tape £1.62 View Reel £1.35 £1.59 £1.35	Min.: 1 Mult.: 1 : 3,300	SMD/SMT	QFN-24	Serial, SPI	16 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape	Without ESD Protection
Interface - I/O Expanders 16 bit In/Out MCP23016T-I/SS Microchip Technology 2,100: £1.57 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. MCP23016T-I/SS Mouser Part No 579-MCP23016T-I/SS	Microchip Technology	Interface - I/O Expanders 16 bit In/Out	Datasheet	Non-Stocked Lead-Time 7 Weeks	Reel £1.57	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: £3.22 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. MCP25020-E/P Mouser Part No 579-MCP25020-E/P	Microchip Technology	Interface - I/O Expanders Digital CAN I/O	Datasheet	Non-Stocked Lead-Time 10 Weeks	£3.22 £2.68 £2.44	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: £3.30 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. MCP25020-E/SL Mouser Part No 579-MCP25020-E/SL	Microchip Technology	Interface - I/O Expanders Digital CAN I/O	Datasheet	Non-Stocked Lead-Time 10 Weeks	£3.30 £2.77	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: £2.44 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. MCP25020T-E/SL Mouser Part No 579-MCP25020T-E/SL	Microchip Technology	Interface - I/O Expanders Digital CAN I/O	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel £2.44	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: £2.50 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. MCP25020T-I/SL Mouser Part No 579-MCP25020T-I/SL	Microchip Technology	Interface - I/O Expanders Digital CAN I/O	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel £2.50	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: £3.25 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. MCP25025-I/P Mouser Part No 579-MCP25025-I/P	Microchip Technology	Interface - I/O Expanders Digital 1 Wire capab	Datasheet	Non-Stocked Lead-Time 9 Weeks	£3.25 £2.73	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: £2.44 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. MCP25025T-I/SL Mouser Part No 579-MCP25025T-I/SL	Microchip Technology	Interface - I/O Expanders Digital 1 Wire capab	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel £2.44	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: £3.43 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. MCP25050T-E/SL Mouser Part No 579-MCP25050T-E/SL	Microchip Technology	Interface - I/O Expanders Mixed signal Expandr	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel £3.43	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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