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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 I C Port Expander with Eight Push-Pull O MAX7320ATE+ Analog Devices / Maxim Integrated 1: ¥1,078 115In Stock	Mfr. Part # MAX7320ATE+ Mouser Part # 700-MAX7320ATE	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expander with Eight Push-Pull O	Datasheet	115In Stock	¥1,078 ¥827.2 ¥764.1 ¥647.8 View ¥641.1 ¥632.8 ¥624.5	Min.: 1 Mult.: 1	MAX7320	SMD/SMT	TQFN-16	I2C, Serial	8 I/O	Without Interrupt	1.71 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 and Reset in HWQFN24 package PCA6416AHF,128 NXP Semiconductors 1: ¥279 14,336In Stock	Mfr. Part # PCA6416AHF,128 Mouser Part # 771-PCA6416AHF,128	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt and Reset in HWQFN24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	14,336In Stock	Cut Tape ¥279 ¥210.9 ¥192.7 ¥174.4 View Reel ¥146.7 ¥164.1 ¥158.6 ¥158.1 ¥152.5 ¥146.7 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	PCA6416	SMD/SMT	HWQFN-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
Interface - I/O Expanders IC Port Expander with Eight Inputs and M MAX7319ATE+T Analog Devices / Maxim Integrated 1: ¥1,078 443In Stock	Mfr. Part # MAX7319ATE+T Mouser Part # 700-MAX7319ATET	Analog Devices / Maxim Integrated	Interface - I/O Expanders IC Port Expander with Eight Inputs and M	Datasheet	443In Stock	Cut Tape ¥1,078 ¥827.2 ¥764.1 ¥694.3 View ¥662.7 ¥642.8 ¥634.5 ¥614.6 MouseReel Available	Min.: 1 Mult.: 1	MAX7319	SMD/SMT	TQFN-EP-16	I2C, Serial	8 I/O	With Interrupt	5.5 V	5.5 V	400 kHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders I2C/SMBUS Expander 16B,w/Int CAT9555YI-T2 onsemi 1: ¥252.5 15,978In Stock	Mfr. Part # CAT9555YI-T2 Mouser Part # 698-CAT9555YI-T2	onsemi	Interface - I/O Expanders I2C/SMBUS Expander 16B,w/Int	Datasheet	15,978In Stock	Cut Tape ¥252.5 ¥184.4 ¥167.8 ¥149 View Reel ¥124.4 ¥139.9 ¥134.4 ¥132.7 ¥124.4 MouseReel Available	Min.: 1 Mult.: 1 Max.: 2,000 : 2,000	CAT9555	SMD/SMT	TSSOP-24	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 Digital CAN I/O MCP25020-I/P Microchip Technology 1: ¥632.8 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	¥632.8 ¥528.2 ¥524.9	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 8-bit I2C and SMBus IO Port PI4IOE5V9554LEX Diodes Incorporated 1: ¥225.9 2,287In Stock 2,500On Order	Mfr. Part # PI4IOE5V9554LEX Mouser Part # 729-PI4IOE5V9554LEX	Diodes Incorporated	Interface - I/O Expanders 8-bit I2C and SMBus IO Port Learn More about Diodes Incorporated pericom io expanders	Datasheet	2,287In Stock 2,500On Order	Cut Tape ¥225.9 ¥162.4 ¥142.7 ¥130.1 ¥125.7 Reel ¥125.7	Min.: 1 Mult.: 1 Max.: 460 : 2,500	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	Reel, Cut Tape	4 kV
Interface - I/O Expanders 16-Port I/O Expander with LED Intensity MAX7313AEG+ Analog Devices / Maxim Integrated 1: ¥1,594.6 397In Stock	Mfr. Part # MAX7313AEG+ Mouser Part # 700-MAX7313AEG	Analog Devices / Maxim Integrated	Interface - I/O Expanders 16-Port I/O Expander with LED Intensity	Datasheet	397In Stock	¥1,594.6 ¥1,239.1 ¥1,053.1 ¥998.3 View ¥978.3 ¥923.5 Quote	Min.: 1 Mult.: 1	MAX7313	SMD/SMT	QSOP-24	I2C, Serial, SMBus	16 I/O	With Interrupt	2 V	3.6 V	400 kHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders Remote 8-Bit I/O Exp ander for I2C-Bus PCF8574RGYR Texas Instruments 1: ¥370.4 1,284In Stock	Mfr. Part # PCF8574RGYR Mouser Part # 595-PCF8574RGYR	Texas Instruments	Interface - I/O Expanders Remote 8-Bit I/O Exp ander for I2C-Bus	Datasheet	1,284In Stock	Cut Tape ¥370.4 ¥275.7 ¥250.8 ¥224.2 Reel ¥189.4 View ¥212.6 ¥206 ¥201 ¥182.7 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	PCF8574	SMD/SMT	VQFN-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-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 I C Port Expander with 4 Push-Pull Outputs and 4 Open-Drain I/Os MAX7323ATE+ Analog Devices / Maxim Integrated 1: ¥1,071.3 466In Stock	Mfr. Part # MAX7323ATE+ Mouser Part # 700-MAX7323ATE	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expander with 4 Push-Pull Outputs and 4 Open-Drain I/Os	Datasheet	466In Stock	¥1,071.3 ¥820.5 ¥759.1 ¥642.8 View ¥636.2 ¥627.9 ¥598 Quote	Min.: 1 Mult.: 1	MAX7323	SMD/SMT	TQFN-EP-16	I2C, Serial	4 I/O	With Interrupt	1.71 V	5.5 V	400 kHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders NCA6416BY-Q100/SOT8041/HWQFN24 NCA6416BY-Q100HP Nexperia 1: ¥294 50In Stock New Product	Mfr. Part # NCA6416BY-Q100HP Mouser Part # 771-NCA6416BY-Q100HP New Product	Nexperia	Interface - I/O Expanders NCA6416BY-Q100/SOT8041/HWQFN24 Learn More about Nexperia nca6416 io expanders	Datasheet	50In Stock	Cut Tape ¥294 ¥215.9 ¥197.7 ¥176.1 Reel ¥151.3 View ¥164.4 ¥158.3 ¥157.6 ¥148.8 MouseReel Available	Min.: 1 Mult.: 1 : 3,000												Reel, Cut Tape, MouseReel
Interface - I/O Expanders Rem 8B I2C & SMBus L o-Pwr I/O Expander A 595-PCA9538DWR PCA9538DW Texas Instruments 1: ¥752.4 579In Stock	Mfr. Part # PCA9538DW Mouser Part # 595-PCA9538DW	Texas Instruments	Interface - I/O Expanders Rem 8B I2C & SMBus L o-Pwr I/O Expander A 595-PCA9538DWR	Datasheet	579In Stock	¥752.4 ¥566.4 ¥521.6 ¥468.4 View ¥453.5 ¥418.6 ¥413.6	Min.: 1 Mult.: 1	PCA9538	SMD/SMT	SOIC-16	I2C, Serial, SMBus	8 I/O	With Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C	Tube	2 kV
Interface - I/O Expanders I C Port Expander with 12 Push-Pull Outp MAX7326AEG+ Analog Devices / Maxim Integrated 1: ¥642.8 49In Stock	Mfr. Part # MAX7326AEG+ Mouser Part # 700-MAX7326AEG	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expander with 12 Push-Pull Outp	Datasheet	49In Stock	¥642.8 ¥629.5 ¥614.6 ¥602.9 View ¥593 ¥584.7 ¥576.4 ¥568.1	Min.: 1 Mult.: 1	MAX7326	SMD/SMT	QSOP-24	I2C, Serial	16 I/O	With Interrupt	1.71 V	5.5 V	400 kHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders Remote 4-Bit I2C and SMBus I/O Expander A 595-PCA9536D PCA9536DR Texas Instruments 1: ¥259.1 186In Stock 10,000Expected 2/22/2027	Mfr. Part # PCA9536DR Mouser Part # 595-PCA9536DR	Texas Instruments	Interface - I/O Expanders Remote 4-Bit I2C and SMBus I/O Expander A 595-PCA9536D	Datasheet	186In Stock 10,000Expected 2/22/2027	Cut Tape ¥259.1 ¥191 ¥172.7 ¥152.8 Reel ¥131.7 View ¥143.7 ¥138 ¥136.7 ¥128.7 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	PCA9536	SMD/SMT	SOIC-8	I2C, Serial, SMBus	4 I/O	Without Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders NCA6416PW/SOT355/TSSOP24 NCA6416PWJ Nexperia 1: ¥287.4 15In Stock 2,500Expected 11/6/2026 New Product	Mfr. Part # NCA6416PWJ Mouser Part # 771-NCA6416PWJ New Product	Nexperia	Interface - I/O Expanders NCA6416PW/SOT355/TSSOP24 Learn More about Nexperia nca6416 io expanders	Datasheet	15In Stock 2,500Expected 11/6/2026	Cut Tape ¥287.4 ¥210.9 ¥192.7 ¥171.1 Reel ¥144.2 View ¥160.6 ¥154.6 ¥153.8 ¥140.9 MouseReel Available	Min.: 1 Mult.: 1 : 2,500												Reel, Cut Tape, MouseReel
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 I C Port Expander with Eight Push-Pull O MAX7320ATE+T Analog Devices / Maxim Integrated 1: ¥1,078 1,748In Stock	Mfr. Part # MAX7320ATE+T Mouser Part # 700-MAX7320ATET	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expander with Eight Push-Pull O	Datasheet	1,748In Stock	Cut Tape ¥1,078 ¥827.2 ¥764.1 ¥694.3 ¥681 ¥583 MouseReel Available	Min.: 1 Mult.: 1	MAX7320	SMD/SMT	TQFN-16	I2C, Serial	8 I/O	Without Interrupt	1.71 V	5.5 V	400 kHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander A 595-PCA9539DBR PCA9539DB Texas Instruments 1: ¥817.2 70In Stock	Mfr. Part # PCA9539DB Mouser Part # 595-PCA9539DB	Texas Instruments	Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander A 595-PCA9539DBR	Datasheet	70In Stock	¥817.2 ¥622.9 ¥574.7 ¥518.2 View ¥493.3 ¥481.7 ¥480 ¥476.7	Min.: 1 Mult.: 1	PCA9539	SMD/SMT	SSOP-24	I2C, Serial, SMBus	16 I/O	With Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C	Tube	2 kV
Interface - I/O Expanders Remote 8-bit I2C SMB us I/O Expander TCA9554DBQR Texas Instruments 1: ¥325.6 1,248In Stock 2,500Expected 11/19/2026	Mfr. Part # TCA9554DBQR Mouser Part # 595-TCA9554DBQR	Texas Instruments	Interface - I/O Expanders Remote 8-bit I2C SMB us I/O Expander Learn More about Texas Instruments ti tca9554 tca9554a expander	Datasheet	1,248In Stock 2,500Expected 11/19/2026	Cut Tape ¥325.6 ¥240.8 ¥219.3 ¥196 Reel ¥165.3 View ¥184.4 ¥177.7 ¥161.8 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	TCA9554	SMD/SMT	SSOP-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 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan A 595-TCA9534ADWT TCA9534ADWR Texas Instruments 1: ¥285.7 443In Stock 4,000Expected 12/21/2026	Mfr. Part # TCA9534ADWR Mouser Part # 595-TCA9534ADWR	Texas Instruments	Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan A 595-TCA9534ADWT	Datasheet	443In Stock 4,000Expected 12/21/2026	Cut Tape ¥285.7 ¥210.9 ¥191 ¥171.1 Reel ¥143.2 View ¥159.6 ¥153.6 ¥152.8 ¥140 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	TCA9534A	SMD/SMT	SOIC-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 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 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 16-Bit I2C & SMBus L o-Pwr I/O Expander PCA9535DGVR Texas Instruments 1: ¥724.2 328In Stock 2,000Expected 2/1/2027	Mfr. Part # PCA9535DGVR Mouser Part # 595-PCA9535DGVR	Texas Instruments	Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander	Datasheet	328In Stock 2,000Expected 2/1/2027	Cut Tape ¥724.2 ¥546.5 ¥501.6 ¥453.5 View Reel ¥398.6 ¥430.2 ¥426.9 ¥400.3 ¥398.6 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCA9535	SMD/SMT	TVSOP-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 16-Bit I2C & SMBus L o-Pwr I/O Expander A 595-PCA9539DWR PCA9539DW Texas Instruments 1: ¥795.6 270In Stock	Mfr. Part # PCA9539DW Mouser Part # 595-PCA9539DW	Texas Instruments	Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander A 595-PCA9539DWR	Datasheet	270In Stock	¥795.6 ¥619.6 ¥524.9 ¥496.6 View ¥470.1 ¥468.4 ¥453.5 ¥446.8	Min.: 1 Mult.: 1	PCA9539	SMD/SMT	SOIC-24	I2C, Serial, SMBus	16 I/O	With Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C	Tube	2 kV
Interface - I/O Expanders 2-Wire-Interfaced 16-Bit I/O Port Expand MAX7312AWG+T Analog Devices / Maxim Integrated 1: ¥867 106In Stock	Mfr. Part # MAX7312AWG+T Mouser Part # 700-MAX7312AWGT	Analog Devices / Maxim Integrated	Interface - I/O Expanders 2-Wire-Interfaced 16-Bit I/O Port Expand	Datasheet	106In Stock	Cut Tape ¥867 ¥847.1 ¥828.8 ¥812.2 ¥775.7 View ¥800.6 ¥787.3 ¥764.1 MouseReel Available	Min.: 1 Mult.: 1	MAX7312	SMD/SMT	SOIC-Wide-24	I2C, Serial	16 I/O	With Interrupt	2 V	5.5 V	400 kHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	Without ESD Protection