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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	Packaging	ESD Protection
Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in VFBGA24 package PCAL6416AEVJ NXP Semiconductors 1: $1.58 7,214In Stock	Mfr. Part No. PCAL6416AEVJ Mouser Part No 771-PCAL6416AEVJ	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in VFBGA24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	7,214In Stock	Cut Tape $1.58 $1.17 $1.07 $0.948 View Reel $0.799 $0.898 $0.867 $0.859 $0.832 $0.799 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	PCAL6416A	SMD/SMT	VFBGA-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	2 kV
Interface - I/O Expanders 34-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in VFBGA42 package PCAL6534EVJ NXP Semiconductors 1: $3.94 4,015In Stock	Mfr. Part No. PCAL6534EVJ Mouser Part No 771-PCAL6534EVJ	NXP Semiconductors	Interface - I/O Expanders 34-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and Agile I/O in VFBGA42 package Learn More about NXP Semiconductors nxp pcal6534 gpio expander	Datasheet	4,015In Stock	Cut Tape $3.94 $2.98 $2.74 $2.47 View Reel $2.10 $2.34 $2.33 $2.25 $2.22 $2.10 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	PCAL6534	SMD/SMT	VFBGA-42	I2C, Serial, SMBus	34 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 16-bit I2C-bus I/O Expander with Interrupt and Agile I/O in TSSOP24 package PCAL9535APW,118 NXP Semiconductors 1: $2.46 7,159In Stock 7,500On Order	Mfr. Part No. PCAL9535APW,118 Mouser Part No 771-PCAL9535APW,118	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt and Agile I/O in TSSOP24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	7,159In Stock 7,500On Order	Cut Tape $2.46 $1.82 $1.75 $1.57 Reel $1.34 View $1.48 $1.43 $1.37 $1.31 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	PCAL9535A	SMD/SMT	TSSOP-24	I2C, Serial	16 I/O	With Interrupt	1.65 V	5.5 V	100 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Reset and Agile I/O in TSSOP24 package PCAL9539APW,118 NXP Semiconductors 1: $2.34 7,429In Stock	Mfr. Part No. PCAL9539APW,118 Mouser Part No 771-PCAL9539APW118	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Reset and Agile I/O in TSSOP24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	7,429In Stock	Cut Tape $2.34 $1.78 $1.64 $1.49 View Reel $1.32 $1.42 $1.38 $1.35 $1.32 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	PCAL9539A	SMD/SMT	TSSOP-24	I2C, Serial, SMBus	16 I/O	With Interrupt	1.65 V	5.5 V	100 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Agile I/O in HWQFN24 package PCAL9555AHF,128 NXP Semiconductors 1: $2.04 12,633In Stock 18,000Expected 02/11/2026	Mfr. Part No. PCAL9555AHF,128 Mouser Part No 771-PCAL9555AHF,128	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Agile I/O in HWQFN24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	12,633In Stock 18,000Expected 02/11/2026	Cut Tape $2.04 $1.51 $1.38 $1.23 View Reel $1.03 $1.16 $1.12 $1.03 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	PCAL9555A	SMD/SMT	HWQFN-24	I2C, Serial	16 I/O	With Interrupt	1.65 V	5.5 V	100 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Agile I/O in TSSOP24 package PCAL9555APW,118 NXP Semiconductors 1: $2.02 4,480In Stock	Mfr. Part No. PCAL9555APW,118 Mouser Part No 771-PCAL9555APW118	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Agile I/O in TSSOP24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	4,480In Stock	Cut Tape $2.02 $1.49 $1.35 $1.20 View Reel $1.01 $1.13 $1.09 $1.01 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	PCAL9555A	SMD/SMT	TSSOP-24	I2C, Serial	16 I/O	With Interrupt	1.65 V	5.5 V	100 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders W/ANNEAL PERIPH PRG- I/O 5V 5MHZ 44PLCC CS82C55A-5Z Renesas / Intersil 1: $16.98 190In Stock 1,040Expected 15/12/2026	Mfr. Part No. CS82C55A-5Z Mouser Part No 968-CS82C55A-5Z	Renesas / Intersil	Interface - I/O Expanders W/ANNEAL PERIPH PRG- I/O 5V 5MHZ 44PLCC	Datasheet	190In Stock 1,040Expected 15/12/2026	$16.98 $13.21 $12.28 $11.27 View $10.99 $10.49 $10.34 Quote	Min.: 1 Mult.: 1	82C55A	SMD/SMT	PLCC-44	Parallel	24 I/O	With Interrupt	4.5 V	5.5 V	8 MHz	0 C	+ 70 C	Tube	Without ESD Protection
Interface - I/O Expanders PERI PRG-I/O 5V 8MHZ 44PLCC INDEL IS82C55AZ96 Renesas / Intersil 1: $42.60 461In Stock	Mfr. Part No. IS82C55AZ96 Mouser Part No 968-IS82C55AZ96	Renesas / Intersil	Interface - I/O Expanders PERI PRG-I/O 5V 8MHZ 44PLCC INDEL	Datasheet	461In Stock	Cut Tape $42.60 $34.28 $32.22 $30.46 View Reel $28.60 $29.29 $28.60 Quote MouseReel Available	Min.: 1 Mult.: 1 : 500	82C55A	SMD/SMT	PLCC-44	Parallel	24 I/O	With Interrupt	4.5 V	5.5 V	8 MHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	1 kV
Interface - I/O Expanders W/ANNEAL PERIPH INT CNTRLR 5V 12 5MHZ IS82C59A-12Z Renesas / Intersil 1: $65.14 45In Stock 185Expected 09/03/2027	Mfr. Part No. IS82C59A-12Z Mouser Part No 968-IS82C59A-12Z	Renesas / Intersil	Interface - I/O Expanders W/ANNEAL PERIPH INT CNTRLR 5V 12 5MHZ	Datasheet	45In Stock 185Expected 09/03/2027	$65.14 $53.31 $49.88 $48.38 View Quote	Min.: 1 Mult.: 1	82C59A	SMD/SMT	PLCC-28	Parallel		With Interrupt	4.5 V	5.5 V	8 MHz	- 40 C	+ 85 C	Tube	1 kV
Interface - I/O Expanders PERIPH INT CNTRLR 5V 8MHZ 28PLCC IND IS82C59AZ Renesas / Intersil 1: $43.36 173In Stock	Mfr. Part No. IS82C59AZ Mouser Part No 968-IS82C59AZ	Renesas / Intersil	Interface - I/O Expanders PERIPH INT CNTRLR 5V 8MHZ 28PLCC IND	Datasheet	173In Stock	$43.36 $34.86 $32.24 $30.90 View $29.39 Quote	Min.: 1 Mult.: 1	82C59A	SMD/SMT	PLCC-28	Parallel		With Interrupt	4.5 V	5.5 V	8 MHz	- 40 C	+ 85 C	Tube	1 kV
Interface - I/O Expanders Low Voltage 24-bit I2C-bus I/O Expander KTS1620ERG-TR Kinetic Technologies 1: $2.67 603In Stock 2,000Expected 05/11/2026	Mfr. Part No. KTS1620ERG-TR Mouser Part No 389-KTS1620ERG-TR	Kinetic Technologies	Interface - I/O Expanders Low Voltage 24-bit I2C-bus I/O Expander Learn More about Kinetic Technologies kinetic kts1620 expander	Datasheet	603In Stock 2,000Expected 05/11/2026	Cut Tape $2.67 $1.98 $1.81 $1.62 Reel $1.41 View $1.53 $1.48 $1.39 $1.35 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	KTS1620	SMD/SMT	TQFN55-32	I2C, Serial	24 I/O	With Interrupt	1.65 V	5.5 V	1 MHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
Interface - I/O Expanders 8-bit I/O Expander I2C interface MCP23009-E/P Microchip Technology 1: $1.59 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	$1.59 $1.35 $1.25 $1.22	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: $1.52 315In 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	315In Stock	$1.52 $1.27 $1.15	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: $1.52 837In Stock 2,546Expected 16/11/2026	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	837In Stock 2,546Expected 16/11/2026	$1.52 $1.27 $1.15	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: $2.13 454In Stock	Mfr. Part No. MCP23016-I/SO Mouser Part No 579-MCP23016-I/SO	Microchip Technology	Interface - I/O Expanders 16 bit In/Out	Datasheet	454In Stock	$2.13 $1.78 $1.72	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: $2.24 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	$2.24 $1.86 $1.85	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: $2.04 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	$2.04 $1.69 $1.54	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: $2.13 381In 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	381In Stock	$2.13 $1.78 $1.61	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: $1.69 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	$1.69 $1.40 $1.28	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: $1.62 283In Stock 294Expected 10/11/2026	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	283In Stock 294Expected 10/11/2026	$1.62 $1.35 $1.24	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: $1.70 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 $1.70 $1.43 Reel $1.29 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/SP Microchip Technology 1: $2.26 500In 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	500In Stock	$2.26 $1.88 $1.70	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: $3.81 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	$3.81 $3.18 $3.16	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: $3.64 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	$3.64 $3.03 $3.00	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: $6.07 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	$6.07 $5.07 $4.90	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