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Interface - I/O Expanders

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) 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 8-bit I2C-bus I/O Expander with Interrupt and Reset in TSSOP16 package PCA9538APWJ NXP Semiconductors 1: ¥290.7 4,042In Stock 5,000Expected 1/7/2027	Mfr. Part # PCA9538APWJ Mouser Part # 771-PCA9538APWJ	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus I/O Expander with Interrupt and Reset in TSSOP16 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	4,042In Stock 5,000Expected 1/7/2027	Cut Tape ¥290.7 ¥215.9 ¥197.7 ¥176.1 Reel ¥153 View ¥171.1 ¥163.6 ¥163.1 ¥149.7 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	PCA9538A	SMD/SMT	TSSOP-16	I2C, Serial, SMBus	8 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 Reset, Low Power version of PCA9555 in TSSOP24 package PCA9539RPW,118 NXP Semiconductors 1: ¥378.7 2,425In Stock	Mfr. Part # PCA9539RPW,118 Mouser Part # 771-PCA9539RPW,118	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Reset, Low Power version of PCA9555 in TSSOP24 package	Datasheet	2,425In Stock	Cut Tape ¥378.7 ¥279 ¥254.1 ¥227.6 Reel ¥196 View ¥214.3 ¥207.6 ¥201 ¥189.4 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	PCA9539R	SMD/SMT	TSSOP-24	I2C, Serial, SMBus	16 I/O	With Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address than PCA9554C in HVQFN16 package PCA9554BBSHP NXP Semiconductors 1: ¥282.4 175In Stock 60,000On Order	Mfr. Part # PCA9554BBSHP Mouser Part # 771-PCA9554BBSHP	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address than PCA9554C in HVQFN16 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	175In Stock 60,000On Order On Order Ship Dates Mfr. #: PCA9554BBSHP Stock: 175 Can Ship Immediately On Order: 6,000 Expected 12/21/2026 18,000 Expected 5/3/2027 36,000 Expected 5/10/2027 Factory Lead-Time: 30 Weeks	Cut Tape ¥282.4 ¥207.6 ¥189.4 ¥167.8 View Reel ¥129.9 ¥157 ¥151 ¥150 ¥149 ¥129.9 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	PCA9554B	SMD/SMT	HVQFN-16	I2C, Serial, SMBus	8 I/O	With Interrupt	1.65 V	5.5 V	100 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554B in HVQFN16 package PCA9554CBSHP NXP Semiconductors 1: ¥277.4 4,519In Stock 6,000Expected 5/10/2027	Mfr. Part # PCA9554CBSHP Mouser Part # 771-PCA9554CBSHP	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554B in HVQFN16 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	4,519In Stock 6,000Expected 5/10/2027	Cut Tape ¥277.4 ¥202.6 ¥184.4 ¥163.6 View Reel ¥133.7 ¥153.6 ¥147.7 ¥145.8 ¥136.7 ¥133.7 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	PCA9554C	SMD/SMT	HVQFN-16	I2C, Serial, SMBus	8 I/O	With Interrupt	1.65 V	5.5 V	100 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt in HVQFN24 package PCA9555BS,118 NXP Semiconductors 1: ¥387 9,058In Stock 18,000Expected 1/26/2027	Mfr. Part # PCA9555BS,118 Mouser Part # 771-PCA9555BS-T	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt in HVQFN24 package Learn More about NXP Semiconductors nxpinterface	Datasheet	9,058In Stock 18,000Expected 1/26/2027	Cut Tape ¥387 ¥304 ¥282.4 ¥264.1 View Reel ¥232.5 ¥252.5 ¥249.2 ¥242.5 ¥232.5 ¥232.5 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	PCA9555	SMD/SMT	HVQFN-24	I2C, Serial, SMBus	16 I/O	With Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt in SO24 package PCA9555D,118 NXP Semiconductors 1: ¥485 3,193In Stock 11,000On Order	Mfr. Part # PCA9555D,118 Mouser Part # 771-PCA9555D-T	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt in SO24 package Learn More about NXP Semiconductors nxpinterface	Datasheet	3,193In Stock 11,000On Order On Order Ship Dates Mfr. #: PCA9555D,118 Stock: 3,193 Can Ship Immediately On Order: 6,000 Expected 11/9/2026 5,000 Expected 2/12/2027 Factory Lead-Time: 16 Weeks	Cut Tape ¥485 ¥362.1 ¥332.2 ¥299 Reel ¥260.8 View ¥282.4 ¥277.4 ¥254.1 ¥240.8 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	PCA9555	SMD/SMT	SO-24	I2C, Serial, SMBus	16 I/O	With Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
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: ¥272.4 7,214In Stock	Mfr. Part # PCAL6416AEVJ Mouser Part # 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 ¥272.4 ¥201 ¥182.7 ¥161.3 View Reel ¥132.7 ¥151.6 ¥145.8 ¥144.7 ¥139.7 ¥132.7 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: ¥654.4 4,015In Stock	Mfr. Part # PCAL6534EVJ Mouser Part # 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 ¥654.4 ¥495 ¥455.1 ¥410.3 View Reel ¥353.8 ¥388.7 ¥387 ¥373.7 ¥368.7 ¥353.8 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: ¥408.6 7,159In Stock 7,500Expected 10/29/2026	Mfr. Part # PCAL9535APW,118 Mouser Part # 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 7,500Expected 10/29/2026	Cut Tape ¥408.6 ¥302.3 ¥290.7 ¥260.8 Reel ¥222.6 View ¥245.8 ¥237.5 ¥227.6 ¥217.6 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: ¥416.9 7,429In Stock	Mfr. Part # PCAL9539APW,118 Mouser Part # 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 ¥416.9 ¥310.6 ¥284 ¥259.1 Reel ¥225.9 View ¥244.2 ¥239.2 ¥220.9 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: ¥338.8 12,962In Stock 18,000Expected 11/2/2026	Mfr. Part # PCAL9555AHF,128 Mouser Part # 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	12,962In Stock 18,000Expected 11/2/2026	Cut Tape ¥338.8 ¥250.8 ¥229.2 ¥204.3 View Reel ¥171.1 ¥192.7 ¥186 ¥171.1 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: ¥335.5 4,530In Stock	Mfr. Part # PCAL9555APW,118 Mouser Part # 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	4,530In Stock	Cut Tape ¥335.5 ¥247.5 ¥224.2 ¥199.3 View Reel ¥167.8 ¥187.7 ¥181 ¥167.8 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: ¥2,820.4 190In Stock 1,040Expected 12/15/2026	Mfr. Part # CS82C55A-5Z Mouser Part # 968-CS82C55A-5Z	Renesas / Intersil	Interface - I/O Expanders W/ANNEAL PERIPH PRG- I/O 5V 5MHZ 44PLCC	Datasheet	190In Stock 1,040Expected 12/15/2026	¥2,820.4 ¥2,194.2 ¥2,039.7 ¥1,871.9 View ¥1,825.4 ¥1,742.4 ¥1,717.5 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: ¥7,075.9 461In Stock	Mfr. Part # IS82C55AZ96 Mouser Part # 968-IS82C55AZ96	Renesas / Intersil	Interface - I/O Expanders PERI PRG-I/O 5V 8MHZ 44PLCC INDEL	Datasheet	461In Stock	Cut Tape ¥7,075.9 ¥5,693.9 ¥5,351.7 ¥5,059.4 View Reel ¥4,750.5 ¥4,865.1 ¥4,750.5 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: ¥10,819.8 45In Stock 185Expected 3/9/2027	Mfr. Part # IS82C59A-12Z Mouser Part # 968-IS82C59A-12Z	Renesas / Intersil	Interface - I/O Expanders W/ANNEAL PERIPH INT CNTRLR 5V 12 5MHZ	Datasheet	45In Stock 185Expected 3/9/2027	¥10,819.8 ¥8,854.8 ¥8,285.1 ¥8,035.9 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 8-bit I/O Expander I2C interface MCP23009-E/P Microchip Technology 1: ¥264.1 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	¥264.1 ¥219.3 ¥202.6	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: ¥252.5 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	¥252.5 ¥210.9 ¥191	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: ¥252.5 837In Stock 2,546Expected 11/16/2026	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 11/16/2026	¥252.5 ¥210.9 ¥191	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: ¥353.8 454In Stock	Mfr. Part # MCP23016-I/SO Mouser Part # 579-MCP23016-I/SO	Microchip Technology	Interface - I/O Expanders 16 bit In/Out	Datasheet	454In Stock	¥353.8 ¥295.7 ¥292.3	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: ¥372.1 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	¥372.1 ¥308.9 ¥307.3	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: ¥338.8 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	¥338.8 ¥280.7 ¥255.8	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: ¥353.8 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	¥353.8 ¥295.7 ¥267.4	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: ¥280.7 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	¥280.7 ¥232.5 ¥212.6	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: ¥269.1 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	¥269.1 ¥224.2 ¥206	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: ¥282.4 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 ¥282.4 ¥237.5 Reel ¥214.3 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