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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	Qualification	Packaging	ESD Protection
Interface - I/O Expanders 2-Wire-Interfaced, 16-Bit, I/O Port Expa MAX7318ATG+ Analog Devices / Maxim Integrated 1: $9.19 189In Stock	Mfr. Part # MAX7318ATG+ Mouser Part # 700-MAX7318ATG	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	189In Stock	$9.19 $7.12 $6.60 $6.03	Min.: 1 Mult.: 1 Max.: 151	MAX7318	SMD/SMT	TQFN-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 2-Wire-Interfaced, 16-Bit, I/O Port Expa MAX7318AWG+ Analog Devices / Maxim Integrated 1: $9.19 32In 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	32In Stock	$9.19 $7.12 $6.60 $6.03 View $5.54 $5.37 $5.24 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 I C Port Expander with Eight Inputs and MAX7319AEE+ Analog Devices / Maxim Integrated 1: $7.07 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	$7.07 $5.42 $5.01 $4.25 View $4.21 $4.09 $4.01 $3.93 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 I C Port Expander with 8 Open-Drain I/Os MAX7321AEE+ Analog Devices / Maxim Integrated 1: $6.49 358In Stock	Mfr. Part # MAX7321AEE+ Mouser Part # 700-MAX7321AEE	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expander with 8 Open-Drain I/Os	Datasheet	358In Stock	$6.49 $4.98 $4.60 $3.90	Min.: 1 Mult.: 1 Max.: 286	MAX7321	SMD/SMT	QSOP-16	I2C, Serial	8 I/O	With Interrupt	1.71 V	5.5 V	400 kHz	- 40 C	+ 125 C		Tube	Without ESD Protection
Interface - I/O Expanders I C Port Expander with 8 Open-Drain I/Os MAX7321ATE+ Analog Devices / Maxim Integrated 1: $4.63 202In Stock	Mfr. Part # MAX7321ATE+ Mouser Part # 700-MAX7321ATE	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expander with 8 Open-Drain I/Os	Datasheet	202In Stock	$4.63 $3.49 $3.21 $2.72	Min.: 1 Mult.: 1 Max.: 213	MAX7321	SMD/SMT	TQFN-16	I2C, Serial	8 I/O	With Interrupt	1.71 V	5.5 V	400 kHz	- 40 C	+ 125 C		Tube	Without ESD Protection
Interface - I/O Expanders I C Port Expander with 4 Push-Pull Outpu MAX7322ATE+T Analog Devices / Maxim Integrated 1: $6.68 124In Stock	Mfr. Part # MAX7322ATE+T Mouser Part # 700-MAX7322ATET	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expander with 4 Push-Pull Outpu	Datasheet	124In Stock	Cut Tape $6.68 $5.12 $4.74 $4.74 MouseReel Available	Min.: 1 Mult.: 1 Max.: 99	MAX7322	SMD/SMT	TQFN-16	I2C, Serial	4 I/O	With Interrupt	1.71 V	5.5 V	400 kHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders I C Port Expander with Eight Push-Pull O MAX7324AEG+ Analog Devices / Maxim Integrated 1: $6.95 3In Stock	Mfr. Part # MAX7324AEG+ Mouser Part # 700-MAX7324AEG	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expander with Eight Push-Pull O	Datasheet	3In Stock	$6.95 $5.33 $4.52 $4.47 View $4.25 $4.02 $3.93 $3.86	Min.: 1 Mult.: 1	MAX7324	SMD/SMT	QSOP-24	I2C, Serial	8 I/O	With Interrupt	1.71 V	5.5 V	400 kHz	- 40 C	+ 125 C		Tube	Without ESD Protection
Interface - I/O Expanders I C Port Expander with 12 Push-Pull Outp MAX7327AATG+ Analog Devices / Maxim Integrated 1: $3.87 8In 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	8In Stock	$3.87 $3.79 $3.70 $3.63 View $3.57 $3.52 $3.47 $3.42	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
Interface - I/O Expanders I C Port Expanders with Eight I/O Ports MAX7328AWE+ Analog Devices / Maxim Integrated 1: $6.59 94In Stock	Mfr. Part # MAX7328AWE+ Mouser Part # 700-MAX7328AWE+	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expanders with Eight I/O Ports	Datasheet	94In Stock	$6.59 $5.05 $4.67 $4.24 View $3.92 $3.80 $3.73 $3.67 Quote	Min.: 1 Mult.: 1	MAX7328	SMD/SMT	SOIC-Wide-16	I2C, Serial	8 I/O	Without Interrupt	2.5 V	5.5 V	100 kHz	- 40 C	+ 125 C		Tube	Without ESD Protection
Interface - I/O Expanders I C Port Expanders with Eight I/O Ports MAX7329AWE+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part # MAX7329AWE+ Mouser Part # 700-MAX7329AWE	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expanders with Eight I/O Ports Mouser does not presently sell this product in your region.	Datasheet			Restricted Availability	MAX7329	SMD/SMT	SOIC-16	I2C, Serial	8 I/O	With Interrupt	2.5 V	5.5 V	100 kHz	- 40 C	+ 125 C		Tube	Without ESD Protection
Interface - I/O Expanders IC Port Expanders with Eight I/O Ports MAX7329AWE+T Analog Devices / Maxim Integrated 1: $2.46 360In Stock	Mfr. Part # MAX7329AWE+T Mouser Part # 700-MAX7329AWET	Analog Devices / Maxim Integrated	Interface - I/O Expanders IC Port Expanders with Eight I/O Ports	Datasheet	360In Stock	Cut Tape $2.46 $2.41 $2.35 $2.31 $2.27 $2.27 MouseReel Available	Min.: 1 Mult.: 1 Max.: 288	MAX7329	SMD/SMT	SOIC-Wide-16	I2C, Serial	8 I/O	With Interrupt	2.5 V	5.5 V	100 kHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders I2C I/O EXPANDER GP PCA9554PW,112 NXP Semiconductors 1: $1.98 5In Stock	Mfr. Part # PCA9554PW,112 Mouser Part # 771-PCA9554PW112	NXP Semiconductors	Interface - I/O Expanders I2C I/O EXPANDER GP	Datasheet	5In Stock	$1.98 $1.45 $1.32 $1.17 View $1.10 $1.06 $0.994 $0.972	Min.: 1 Mult.: 1	PCA9554	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	2 kV
Interface - I/O Expanders NCA6416PW/SOT355/TSSOP24 NCA6416PWJ Nexperia 1: $1.73 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 $1.73 $1.27 $1.16 $1.03 Reel $0.868 View $0.967 $0.931 $0.926 $0.848 MouseReel Available	Min.: 1 Mult.: 1 : 2,500													Reel, Cut Tape, MouseReel
Interface - I/O Expanders Column Keypad Scanner & GPIO Port Expand Analog Devices ADP5587ACBZ-R7 ADP5587ACBZ-R7 Analog Devices 1: $4.00 445In Stock	Mfr. Part # ADP5587ACBZ-R7 Mouser Part # 584-ADP5587ACBZ-R7	Analog Devices	Interface - I/O Expanders Column Keypad Scanner & GPIO Port Expand	Datasheet	445In Stock	Cut Tape $4.00 $3.03 $2.78 $2.51 $2.38 $2.38 MouseReel Available	Min.: 1 Mult.: 1 Max.: 356	ADP5587	SMD/SMT	WLCSP-25	I2C, Serial	18 I/O	With Interrupt	1.65 V	3.6 V	400 kHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
Interface - I/O Expanders Low Voltage 16-Bit I2C-bus I/O Expander KTS1622EUAA-TR Kinetic Technologies 1: $0.91 47,516On Order	Mfr. Part # KTS1622EUAA-TR Mouser Part # 389-KTS1622EUAA-TR	Kinetic Technologies	Interface - I/O Expanders Low Voltage 16-Bit I2C-bus I/O Expander Learn More about Kinetic Technologies kinetic kts1622 expanders	Datasheet	47,516On Order On Order Ship Dates Mfr. #: KTS1622EUAA-TR Stock: 0 On Order: 1,016 Expected 10/28/2026 46,500 Expected 12/3/2026 Factory Lead-Time: 7 Weeks	Cut Tape $0.91 $0.654 $0.59 $0.519 Reel $0.425 View $0.485 $0.464 $0.439 $0.419 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	KTS1622	SMD/SMT	TQFN44-24	I2C, Serial	16 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 Remote 8-Bit I2C and SMBus LP I/O Exp PCA9557RGVR Texas Instruments 1: $2.02 27,357On Order	Mfr. Part # PCA9557RGVR Mouser Part # 595-PCA9557RGVR	Texas Instruments	Interface - I/O Expanders Remote 8-Bit I2C and SMBus LP I/O Exp Learn More about Texas Instruments ti pca95xx	Datasheet	27,357On Order On Order Ship Dates Mfr. #: PCA9557RGVR Stock: 0 On Order: 2,357 Expected 12/10/2026 5,000 Expected 12/21/2026 10,000 Expected 12/25/2026 10,000 Expected 1/14/2027 Factory Lead-Time: 12 Weeks	Cut Tape $2.02 $1.49 $1.36 $1.19 Reel $0.993 View $1.12 $1.08 $1.06 $0.966 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	PCA9557	SMD/SMT	VQFN-16	I2C, Serial, SMBus	8 I/O	Without Interrupt	2.5 V	6 V	400 kHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders Remote 8B I2C and Lo -Pwr I/O Expander PCA9534ARGTR Texas Instruments 1: $2.34 16,859Expected 1/7/2027	Mfr. Part # PCA9534ARGTR Mouser Part # 595-PCA9534ARGTR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C and Lo -Pwr I/O Expander	Datasheet	16,859Expected 1/7/2027	Cut Tape $2.34 $1.73 $1.58 $1.42 Reel $1.23 View $1.34 $1.30 $1.27 $1.20 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	PCA9534A	SMD/SMT	VQFN-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 Remote 16-Bit I2C & SMBus I/O Expander PCA9555RGER Texas Instruments 1: $2.42 12,000On Order	Mfr. Part # PCA9555RGER Mouser Part # 595-PCA9555RGER	Texas Instruments	Interface - I/O Expanders Remote 16-Bit I2C & SMBus I/O Expander	Datasheet	12,000On Order On Order Ship Dates Mfr. #: PCA9555RGER Stock: 0 On Order: 3,000 Expected 1/8/2027 9,000 Expected 3/11/2027 Factory Lead-Time: 20 Weeks	Cut Tape $2.42 $1.79 $1.63 $1.46 View Reel $1.32 $1.42 $1.38 $1.32 $1.32 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	PCA9555	SMD/SMT	VQFN-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 8bit I/O Expndr A 59 5-PCF8574DW A 595-P A 595-PCF8574DW PCF8574DWR Texas Instruments 1: $2.05 15,435Expected 11/23/2026	Mfr. Part # PCF8574DWR Mouser Part # 595-PCF8574DWR	Texas Instruments	Interface - I/O Expanders 8bit I/O Expndr A 59 5-PCF8574DW A 595-P A 595-PCF8574DW	Datasheet	15,435Expected 11/23/2026	Cut Tape $2.05 $1.52 $1.38 $1.23 Reel $1.05 View $1.16 $1.12 $1.10 $1.02 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCF8574	SMD/SMT	SOIC-16	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 Lo-Vltg 8B I2C & SMB us I/O Expander TCA6408ARSVR Texas Instruments 1: $0.90 89,893On Order	Mfr. Part # TCA6408ARSVR Mouser Part # 595-TCA6408ARSVR	Texas Instruments	Interface - I/O Expanders Lo-Vltg 8B I2C & SMB us I/O Expander	Datasheet	89,893On Order On Order Ship Dates Mfr. #: TCA6408ARSVR Stock: 0 On Order: 23,893 Expected 12/17/2026 12,000 Expected 1/14/2027 54,000 Expected 3/1/2027 Factory Lead-Time: 20 Weeks	Cut Tape $0.90 $0.824 Reel $0.824 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	TCA6408A	SMD/SMT	UQFN-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 Remote 16bit I2C and SMBux TCA9535RGER Texas Instruments 1: $1.98 56,080On Order	Mfr. Part # TCA9535RGER Mouser Part # 595-TCA9535RGER	Texas Instruments	Interface - I/O Expanders Remote 16bit I2C and SMBux Learn More about Texas Instruments ti tca9535 expander	Datasheet	56,080On Order On Order Ship Dates Mfr. #: TCA9535RGER Stock: 0 On Order: 26,080 Expected 12/24/2026 3,000 Expected 12/31/2026 27,000 Expected 1/7/2027 Factory Lead-Time: 20 Weeks	Cut Tape $1.98 $1.46 $1.33 $1.19 Reel $0.968 View $1.10 $1.06 $0.949 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	TCA9535	SMD/SMT	VQFN-24	I2C, Serial, SMBus	16 I/O	With Interrupt	1.65 V	5 V	400 kHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders Rem 16B I2C & SMBus Low-Pwr I/O Expander TCA9535RTWR Texas Instruments 1: $1.71 75,640On Order	Mfr. Part # TCA9535RTWR Mouser Part # 595-TCA9535RTWR	Texas Instruments	Interface - I/O Expanders Rem 16B I2C & SMBus Low-Pwr I/O Expander Learn More about Texas Instruments ti tca9535 expander	Datasheet	75,640On Order On Order Ship Dates Mfr. #: TCA9535RTWR Stock: 0 On Order: 30,640 Expected 12/17/2026 45,000 Expected 10/14/2027 Factory Lead-Time: 20 Weeks	Cut Tape $1.71 $1.25 $1.14 $1.01 View Reel $0.888 $0.929 $0.894 $0.888 $0.888 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,001 : 3,000	TCA9535	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 Automotive 16-bit 1. 65 to 3.6V I2C/SMBu TCA9539AQPWRQ1 Texas Instruments 1: $2.44 16,159On Order New Product	Mfr. Part # TCA9539AQPWRQ1 Mouser Part # 595-TCA9539AQPWRQ1 New Product	Texas Instruments	Interface - I/O Expanders Automotive 16-bit 1. 65 to 3.6V I2C/SMBu Learn More about Texas Instruments ti tca9539x q1 i2c smbus io expander	Datasheet	16,159On Order On Order Ship Dates Mfr. #: TCA9539AQPWRQ1 Stock: 0 On Order: 4,159 Expected 1/7/2027 3,000 Expected 2/4/2027 9,000 Expected 2/25/2027 Factory Lead-Time: 20 Weeks	Cut Tape $2.44 $1.81 $1.66 $1.48 View Reel $1.36 $1.40 $1.36 $1.36 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,001 : 3,000		SMD/SMT	TSSOP-24	I2C	17 I/O	With Interrupt	1.65 V	5.5 V	400 kHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel
Interface - I/O Expanders Automotive Low Volta ge 16bit TCA9539QPWRQ1 Texas Instruments 1: $3.54 25,501On Order	Mfr. Part # TCA9539QPWRQ1 Mouser Part # 595-TCA9539QPWRQ1	Texas Instruments	Interface - I/O Expanders Automotive Low Volta ge 16bit	Datasheet	25,501On Order On Order Ship Dates Mfr. #: TCA9539QPWRQ1 Stock: 0 On Order: 15,501 Expected 12/24/2026 2,000 Expected 1/7/2027 8,000 Expected 1/21/2027 Factory Lead-Time: 20 Weeks	Cut Tape $3.54 $2.67 $2.45 $2.21 Reel $1.91 View $2.09 $2.07 $1.90 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	TCA9539	SMD/SMT	TSSOP-24	I2C, Serial, SMBus	16 I/O	With Interrupt	1.65 V	3.6 V	400 kHz	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 1.65 to 5.5V 16-bit I2C TCA9555RGER Texas Instruments 1: $1.98 32,988Expected 1/21/2027	Mfr. Part # TCA9555RGER Mouser Part # 595-TCA9555RGER	Texas Instruments	Interface - I/O Expanders 1.65 to 5.5V 16-bit I2C Learn More about Texas Instruments ti tca9555 io expander	Datasheet	32,988Expected 1/21/2027	Cut Tape $1.98 $1.47 $1.33 $1.19 Reel $1.00 View $1.12 $1.08 $0.988 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	TCA9555	SMD/SMT	VQFN-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