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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 2-Wire-Interfaced, 16-Bit, I/O Port Expa MAX7318AAG+ Analog Devices / Maxim Integrated 1: ¥1,460 19In Stock	Mfr. Part # MAX7318AAG+ Mouser Part # 700-MAX7318AAG	Analog Devices / Maxim Integrated	Interface - I/O Expanders 2-Wire-Interfaced, 16-Bit, I/O Port Expa Learn More about Analog Devices / Maxim Integrated maxim programmable logic controllers	Datasheet	19In Stock	¥1,460 ¥1,132.8 ¥991.6 ¥950.1 View ¥910.2 ¥880.3 ¥852.1 Quote	Min.: 1 Mult.: 1	MAX7318	SMD/SMT	SSOP-24	I2C, Serial	16 I/O	With Interrupt	2 V	5.5 V	400 kHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port MAX7301ATL+ Analog Devices / Maxim Integrated 1: ¥2,604.4 79In Stock	Mfr. Part # MAX7301ATL+ Mouser Part # 700-MAX7301ATL	Analog Devices / Maxim Integrated	Interface - I/O Expanders 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port Learn More about Analog Devices / Maxim Integrated maxim programmable logic controllers	Datasheet	79In Stock	¥2,604.4 ¥2,019.8 ¥1,842 ¥1,773.9 View ¥1,702.5 ¥1,659.3 ¥1,624.5 Quote	Min.: 1 Mult.: 1	MAX7301	SMD/SMT	TQFN-40	Serial, SPI	28 I/O	With Interrupt	2.5 V	5.5 V	26 MHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders I C Port Expander with Eight Inputs and MAX7319AEE+ Analog Devices / Maxim Integrated 1: ¥1,174.3 61In Stock	Mfr. Part # MAX7319AEE+ Mouser Part # 700-MAX7319AEE+	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expander with Eight Inputs and	Datasheet	61In Stock	¥1,174.3 ¥900.3 ¥832.2 ¥705.9 View ¥699.3 ¥679.3 ¥666.1 ¥652.8 Quote	Min.: 1 Mult.: 1	MAX7319	SMD/SMT	QSOP-16	I2C, Serial	8 I/O	With Interrupt	5.5 V	5.5 V	400 kHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders 8bit I/O Expndr A 59 5-PCF8574APW A 595- A 595-PCF8574APW PCF8574APWR Texas Instruments 1: ¥270.7 183In Stock 22,000On Order	Mfr. Part # PCF8574APWR Mouser Part # 595-PCF8574APWR	Texas Instruments	Interface - I/O Expanders 8bit I/O Expndr A 59 5-PCF8574APW A 595- A 595-PCF8574APW	Datasheet	183In Stock 22,000On Order On Order Ship Dates Mfr. #: PCF8574APWR Stock: 183 Can Ship Immediately On Order: 10,000 Expected 12/25/2026 12,000 Expected 2/11/2027 Factory Lead-Time: 12 Weeks	Cut Tape ¥270.7 ¥199.3 ¥181 ¥159.5 Reel ¥129.1 View ¥143.5 ¥137.9 ¥136.7 ¥127.2 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCF8574A	SMD/SMT	TSSOP-20	I2C, Serial	8 I/O	With Interrupt	2.5 V	6 V	100 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	1 kV
Interface - I/O Expanders 16-bit I2C and SMBus low power I/O port PI4IOE5V9539LE Diodes Incorporated 1: ¥240.8 41In Stock	Mfr. Part # PI4IOE5V9539LE Mouser Part # 729-PI4IOE5V9539LE	Diodes Incorporated	Interface - I/O Expanders 16-bit I2C and SMBus low power I/O port Learn More about Diodes Incorporated pericom io expanders	Datasheet	41In Stock	¥240.8 ¥174.4 ¥150.3 ¥130.7 View ¥126.9 ¥124.4 ¥121.9 ¥120.4 ¥119.3	Min.: 1 Mult.: 1	PIO4IO	SMD/SMT	TSSOP-24	I2C, Serial, SMBus	16 I/O	With Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C	Tube
Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt, Low Voltage version of PCA9535 in TSSOP24 package PCA9535APW,118 NXP Semiconductors 1: ¥347.1 92In Stock 12,500Expected 10/29/2026	Mfr. Part # PCA9535APW,118 Mouser Part # 771-PCA9535APW,118	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt, Low Voltage version of PCA9535 in TSSOP24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	92In Stock 12,500Expected 10/29/2026	Cut Tape ¥347.1 ¥255.8 ¥232.5 ¥207.6 View Reel ¥181 ¥196 ¥189.4 ¥181 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	PCA9535A	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 8-bit I2C-bus/SMBus I/O Expander with Reset in TSSOP16 package PCA9557PW,118 NXP Semiconductors 1: ¥402 992In Stock 32,500Expected 12/21/2026	Mfr. Part # PCA9557PW,118 Mouser Part # 771-PCA9557PW-T	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Reset in TSSOP16 package	Datasheet	992In Stock 32,500Expected 12/21/2026	Cut Tape ¥402 ¥297.3 ¥270.7 ¥242.5 View Reel ¥191 ¥229.2 ¥227.6 ¥191 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	PCA9557	SMD/SMT	TSSOP-16	I2C, Serial, SMBus	8 I/O	Without Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Reset in HVQFN16 package PCA9538BS,118 NXP Semiconductors 1: ¥446.8 103In Stock 12,000Expected 11/2/2026	Mfr. Part # PCA9538BS,118 Mouser Part # 771-PCA9538BS-T	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Reset in HVQFN16 package	Datasheet	103In Stock 12,000Expected 11/2/2026	Cut Tape ¥446.8 ¥332.2 ¥302.3 ¥270.7 View Reel ¥227.6 ¥255.8 ¥247.5 ¥237.5 ¥234.2 ¥227.6 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	PCA9538	SMD/SMT	HVQFN-16	I2C, Serial, SMBus	8 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 16-bit I2C and SMBus low power I/O port PI4IOE5V9539ZDEX Diodes Incorporated 1: ¥240.8 2,445In Stock 7,000Expected 12/18/2026	Mfr. Part # PI4IOE5V9539ZDEX Mouser Part # 729-PI4IOE5V9539ZDEX	Diodes Incorporated	Interface - I/O Expanders 16-bit I2C and SMBus low power I/O port Learn More about Diodes Incorporated pericom io expanders	Datasheet	2,445In Stock 7,000Expected 12/18/2026	Cut Tape ¥240.8 ¥174.4 ¥152.6 ¥139.2 ¥134.5 Reel ¥134.5 MouseReel Available	Min.: 1 Mult.: 1 Max.: 460 : 3,500	PIO4IO	SMD/SMT	TQFN-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	4 kV
Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Reset in TSSOP24 package PCA9539PW,118 NXP Semiconductors 1: ¥425.2 108In Stock 17,500On Order	Mfr. Part # PCA9539PW,118 Mouser Part # 771-PCA9539PW-T	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Reset in TSSOP24 package	Datasheet	108In Stock 17,500On Order On Order Ship Dates Mfr. #: PCA9539PW,118 Stock: 108 Can Ship Immediately On Order: 7,500 Expected 6/7/2027 10,000 Expected 6/14/2027 Factory Lead-Time: 30 Weeks	Cut Tape ¥425.2 ¥315.6 ¥287.4 ¥257.5 View Reel ¥214.3 ¥244.2 ¥234.2 ¥225.9 ¥214.3 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	PCA9539	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-Port I/O Expander with LED Intensity C MAX7315AUE+ Analog Devices / Maxim Integrated 1: ¥1,129.5 5In Stock	Mfr. Part # MAX7315AUE+ Mouser Part # 700-MAX7315AUE	Analog Devices / Maxim Integrated	Interface - I/O Expanders 8-Port I/O Expander with LED Intensity C	Datasheet	5In Stock	¥1,129.5 ¥867 ¥800.6 ¥725.9 View ¥692.6 ¥671 ¥662.7 ¥654.4	Min.: 1 Mult.: 1	MAX7315	SMD/SMT	TSSOP-16	I2C, Serial, SMBus	8 I/O	With Interrupt	2 V	3.6 V	400 kHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders 18-Port GPIO with LED Intensity Control, MAX7314AEG+ Analog Devices / Maxim Integrated 1: ¥1,652.7 10In Stock	Mfr. Part # MAX7314AEG+ Mouser Part # 700-MAX7314AEG	Analog Devices / Maxim Integrated	Interface - I/O Expanders 18-Port GPIO with LED Intensity Control,	Datasheet	10In Stock	¥1,652.7 ¥1,287.3 ¥1,092.9 ¥1,091.3 View ¥1,003.2 ¥983.3 ¥951.8 Quote	Min.: 1 Mult.: 1	MAX7314	SMD/SMT	QSOP-24	I2C, Serial	18 I/O	With Interrupt	2 V	3.6 V	400 kHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders 8-bit I2C and SMBus IO Port PI4IOE5V9554LE Diodes Incorporated 1: ¥224.2 138In Stock	Mfr. Part # PI4IOE5V9554LE Mouser Part # 729-PI4IOE5V9554LE	Diodes Incorporated	Interface - I/O Expanders 8-bit I2C and SMBus IO Port Learn More about Diodes Incorporated pericom io expanders	Datasheet	138In Stock	¥224.2 ¥161.9 ¥144.2 ¥139.9 View ¥121.3 ¥116.3 ¥111.1 ¥108 ¥105.5	Min.: 1 Mult.: 1	PIO4IO	SMD/SMT	TSSOP-16	I2C, Serial, SMBus	8 I/O	With Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C	Tube	4 kV
Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan TCA9538DBR Texas Instruments 1: ¥345.5 338In Stock 4,000Expected 11/19/2026	Mfr. Part # TCA9538DBR Mouser Part # 595-TCA9538DBR	Texas Instruments	Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan	Datasheet	338In Stock 4,000Expected 11/19/2026	Cut Tape ¥345.5 ¥260.8 ¥239.2 ¥215.9 Reel ¥192.7 View ¥204.3 ¥202.6 ¥187.7 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	TCA9538	SMD/SMT	SSOP-16	I2C, Serial	8 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 16-bit I2C and SMBus low power I/O port PI4IOE5V9539LEX Diodes Incorporated 1: ¥240.8 237In Stock 3,000Expected 12/8/2027	Mfr. Part # PI4IOE5V9539LEX Mouser Part # 729-PI4IOE5V9539LEX	Diodes Incorporated	Interface - I/O Expanders 16-bit I2C and SMBus low power I/O port Learn More about Diodes Incorporated pericom io expanders	Datasheet	237In Stock 3,000Expected 12/8/2027	Cut Tape ¥240.8 ¥174.4 ¥152.6 ¥139.2 View Reel ¥110.8 ¥134.5 ¥131.7 ¥128.7 ¥110.8	Min.: 1 Mult.: 1 : 3,000	PIO4IO	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
Interface - I/O Expanders 8bit I/O Expndr A 59 5-PCF8574PW A 595-P A 595-PCF8574PW PCF8574PWR Texas Instruments 1: ¥302.3 1,239In Stock 6,000Expected 4/12/2027	Mfr. Part # PCF8574PWR Mouser Part # 595-PCF8574PWR	Texas Instruments	Interface - I/O Expanders 8bit I/O Expndr A 59 5-PCF8574PW A 595-P A 595-PCF8574PW	Datasheet	1,239In Stock 6,000Expected 4/12/2027	Cut Tape ¥302.3 ¥222.6 ¥202.6 ¥181 Reel ¥153.3 View ¥169.4 ¥162.9 ¥162.4 ¥149.8 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCF8574	SMD/SMT	TSSOP-20	I2C, Serial	8 I/O	With Interrupt	2.5 V	6 V	100 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	1 kV
Interface - I/O Expanders Remote 8B I2C & SMBu s I/O Expander TCA9554APWR Texas Instruments 1: ¥227.6 686In Stock 10,000Expected 11/19/2026	Mfr. Part # TCA9554APWR Mouser Part # 595-TCA9554APWR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C & SMBu s I/O Expander Learn More about Texas Instruments ti tca9554 tca9554a expander	Datasheet	686In Stock 10,000Expected 11/19/2026	Cut Tape ¥227.6 ¥182.7 ¥165.4 ¥146.8 Reel ¥122.7 View ¥138 ¥132.7 ¥131.2 ¥120.1 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	TCA9554A	SMD/SMT	TSSOP-16	I2C, Serial, SMBus	8 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 10-Port SPI-Interfaced I/O Expander with MAX7317ATE+ Analog Devices / Maxim Integrated 1: ¥1,112.9 200In Stock	Mfr. Part # MAX7317ATE+ Mouser Part # 700-MAX7317ATE	Analog Devices / Maxim Integrated	Interface - I/O Expanders 10-Port SPI-Interfaced I/O Expander with Learn More about Analog Devices / Maxim Integrated maxim programmable logic controllers	Datasheet	200In Stock	¥1,112.9 ¥975 ¥901.9 ¥765.7 View ¥760.7 ¥707.6 ¥681	Min.: 1 Mult.: 1	MAX7317	SMD/SMT	TQFN-16	Serial, SPI	10 I/O	Without Interrupt	2.25 V	3.6 V	26 MHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders 2-Wire-Interfaced 16-Bit I/O Port Expand MAX7311AWG+T Analog Devices / Maxim Integrated 1: ¥1,235.8 17In Stock	Mfr. Part # MAX7311AWG+T Mouser Part # 700-MAX7311AWGT	Analog Devices / Maxim Integrated	Interface - I/O Expanders 2-Wire-Interfaced 16-Bit I/O Port Expand	Datasheet	17In Stock	Cut Tape ¥1,235.8 ¥1,209.2 ¥1,182.6 ¥1,159.4 View ¥1,141.1 ¥1,124.5 ¥1,107.9 Quote MouseReel Available	Min.: 1 Mult.: 1	MAX7311	SMD/SMT	SOIC-24	I2C, Serial, SMBus	16 I/O	With Interrupt	2.5 V	5.5 V	400 kHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders Lo-Vltg 16B I2C & SM Bus I/O Exp TCA6416APWR Texas Instruments 1: ¥340.5 7In Stock 12,000On Order	Mfr. Part # TCA6416APWR Mouser Part # 595-TCA6416APWR	Texas Instruments	Interface - I/O Expanders Lo-Vltg 16B I2C & SM Bus I/O Exp	Datasheet	7In Stock 12,000On Order On Order Ship Dates Mfr. #: TCA6416APWR Stock: 7 Can Ship Immediately On Order: 6,000 Expected 3/5/2027 6,000 Expected 3/18/2027 Factory Lead-Time: 20 Weeks	Cut Tape ¥340.5 ¥250.8 ¥229.2 ¥204.3 Reel ¥177.7 View ¥192.7 ¥186 ¥182.7 ¥172.7 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	TCA6416A	SMD/SMT	TSSOP-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 2-Wire-Interfaced, 16-Bit, I/O Port Expa MAX7318AWG+ Analog Devices / Maxim Integrated 1: ¥1,526.5 27In Stock	Mfr. Part # MAX7318AWG+ Mouser Part # 700-MAX7318AWG+	Analog Devices / Maxim Integrated	Interface - I/O Expanders 2-Wire-Interfaced, 16-Bit, I/O Port Expa Learn More about Analog Devices / Maxim Integrated maxim programmable logic controllers	Datasheet	27In Stock	¥1,526.5 ¥1,182.6 ¥1,096.3 ¥1,001.6 View ¥920.2 ¥892 ¥870.4 Quote	Min.: 1 Mult.: 1	MAX7318	SMD/SMT	SOIC-24	I2C, Serial, SMBus	16 I/O	With Interrupt	2 V	5.5 V	400 kHz	- 40 C	+ 125 C	Tube	Without 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: ¥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 8-Port I/O Expander with LED Intensity C MAX7315ATE+ Analog Devices / Maxim Integrated 1: ¥1,071.3 15In Stock	Mfr. Part # MAX7315ATE+ Mouser Part # 700-MAX7315ATE	Analog Devices / Maxim Integrated	Interface - I/O Expanders 8-Port I/O Expander with LED Intensity C	Datasheet	15In Stock	¥1,071.3 ¥820.5 ¥759.1 ¥642.8 View ¥636.2 ¥627.9 ¥621.2 Quote	Min.: 1 Mult.: 1	MAX7315	SMD/SMT	TQFN-16	I2C, Serial, SMBus	8 I/O	With Interrupt	2 V	3.6 V	400 kHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders Lo-Vltg 16B I2C and SMBus I/O Expander TCA6416ARTWR Texas Instruments 1: ¥393.7 119In Stock 27,000Expected 12/17/2026	Mfr. Part # TCA6416ARTWR Mouser Part # 595-TCA6416ARTWR	Texas Instruments	Interface - I/O Expanders Lo-Vltg 16B I2C and SMBus I/O Expander	Datasheet	119In Stock 27,000Expected 12/17/2026	Cut Tape ¥393.7 ¥292.3 ¥267.4 ¥239.2 Reel ¥182.7 View ¥209.3 ¥202.6 ¥179.4 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	TCA6416A	SMD/SMT	WQFN-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 I C Port Expander with 12 Push-Pull Outp MAX7327AATG+ Analog Devices / Maxim Integrated 1: ¥642.8 3In Stock	Mfr. Part # MAX7327AATG+ Mouser Part # 700-MAX7327AATG+	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expander with 12 Push-Pull Outp	Datasheet	3In Stock	¥642.8 ¥629.5 ¥614.6 ¥602.9 View ¥593 ¥584.7 ¥576.4 ¥568.1	Min.: 1 Mult.: 1	MAX7327	SMD/SMT	TQFN-EP-24	I2C, Serial	4 I/O	With Interrupt	1.71 V	5.5 V	400 kHz	- 40 C	+ 125 C	Tube	Without ESD Protection