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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 MAX7318AUG+ Analog Devices / Maxim Integrated 1: $9.19 300In Stock	Mfr. Part No. MAX7318AUG+ Mouser Part No 700-MAX7318AUG	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	300In Stock	$9.19 $7.12 $6.60 $6.03	Min.: 1 Mult.: 1 Max.: 240	MAX7318	SMD/SMT	TSSOP-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 8 Open-Drain I/Os MAX7321ATE+T Analog Devices / Maxim Integrated 1: $4.54 6,615In Stock	Mfr. Part No. MAX7321ATE+T Mouser Part No 700-MAX7321ATET	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expander with 8 Open-Drain I/Os	Datasheet	6,615In Stock	Cut Tape $4.54 $3.45 $3.18 $2.87 View Reel $2.49 $2.73 $2.56 $2.49 MouseReel Available	Min.: 1 Mult.: 1 Max.: 5,292 : 2,500	MAX7321	SMD/SMT	TQFN-16	I2C, Serial	8 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 NCA9539PW-Q100/SOT355/TSSOP24 NCA9539PW-Q100J Nexperia 1: $1.85 1,535In Stock	Mfr. Part No. NCA9539PW-Q100J Mouser Part No 771-NCA9539PW-Q100J	Nexperia	Interface - I/O Expanders NCA9539PW-Q100/SOT355/TSSOP24 Learn More about Nexperia nca9535 nca9539 nca9555 gipo expanders	Datasheet	1,535In Stock	Cut Tape $1.85 $1.36 $1.24 $1.10 Reel $0.93 View $1.04 $0.997 $0.994 $0.91 MouseReel Available	Min.: 1 Mult.: 1 : 2,500		SMD/SMT	TSSOP-24	I2C, Serial, SMBus	16 I/O	With Interrupt	1.65 V	5.5 V	400 kHz	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape, MouseReel
Interface - I/O Expanders NCA9555PW/SOT355/TSSOP24 NCA9555PWJ Nexperia 1: $1.62 322In Stock 2,500Expected 19/10/2026	Mfr. Part No. NCA9555PWJ Mouser Part No 771-NCA9555PWJ	Nexperia	Interface - I/O Expanders NCA9555PW/SOT355/TSSOP24 Learn More about Nexperia nca9555pw expanders	Datasheet	322In Stock 2,500Expected 19/10/2026	Cut Tape $1.62 $1.21 $1.10 $0.975 Reel $0.802 View $0.917 $0.881 $0.857 $0.784 MouseReel Available	Min.: 1 Mult.: 1 : 2,500		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
Interface - I/O Expanders 16bit Input/Output Exp I2C interface MCP23017-E/SP Microchip Technology 1: $1.69 4,501In Stock 7,500Expected 13/10/2026	Mfr. Part No. MCP23017-E/SP Mouser Part No 579-MCP23017-E/SP	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp I2C interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	4,501In Stock 7,500Expected 13/10/2026	$1.69 $1.40 $1.28	Min.: 1 Mult.: 1	MCP23017	Through Hole	SPDIP-28	I2C, Serial	16 I/O	With Interrupt	1.8 V	5.5 V	1.7 MHz	- 40 C	+ 125 C		Tube	4 kV
Interface - I/O Expanders 16bit Input/Output Exp I2C interface MCP23017T-E/SO Microchip Technology 1: $1.62 10,777In Stock 16,000Expected 16/10/2026	Mfr. Part No. MCP23017T-E/SO Mouser Part No 579-MCP23017T-E/SO	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp I2C interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	10,777In Stock 16,000Expected 16/10/2026	Cut Tape $1.62 $1.35 Reel $1.24 MouseReel Available	Min.: 1 Mult.: 1 : 1,600	MCP23017	SMD/SMT	SOIC-28	I2C, Serial	16 I/O	With Interrupt	1.8 V	5.5 V	1.7 MHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	4 kV
Interface - I/O Expanders I2C-Compatible Keypd Cntlr GPIO PWM A 59 A 595-LM8330TMX/NOPB LM8330TME/NOPB Texas Instruments 1: $3.33 1,600In Stock	Mfr. Part No. LM8330TME/NOPB Mouser Part No 595-LM8330TME/NOPB	Texas Instruments	Interface - I/O Expanders I2C-Compatible Keypd Cntlr GPIO PWM A 59 A 595-LM8330TMX/NOPB	Datasheet	1,600In Stock	Cut Tape $3.33 $2.48 $2.27 $2.08 Reel $1.76 View $1.65 $1.62 MouseReel Available	Min.: 1 Mult.: 1 : 250	LM8330	SMD/SMT	DSBGA-25	I2C, Serial		With Interrupt	1.62 V	1.98 V	400 kHz	- 30 C	+ 85 C		Reel, Cut Tape, MouseReel	8 kV
Interface - I/O Expanders Remote 8B I2C & Lo- Pwr I/O Expander A 5 A 595-PCA9534APW PCA9534APWR Texas Instruments 1: $2.22 4,064In Stock	Mfr. Part No. PCA9534APWR Mouser Part No 595-PCA9534APWR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C & Lo- Pwr I/O Expander A 5 A 595-PCA9534APW	Datasheet	4,064In Stock	Cut Tape $2.22 $1.64 $1.49 $1.33 Reel $1.13 View $1.26 $1.21 $1.15 $1.10 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCA9534A	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, MouseReel	2 kV
Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander PCA9535DBQR Texas Instruments 1: $3.10 770In Stock	Mfr. Part No. PCA9535DBQR Mouser Part No 595-PCA9535DBQR	Texas Instruments	Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander	Datasheet	770In Stock	Cut Tape $3.10 $3.02 $2.73 $2.64 $2.41 Reel $2.35 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	PCA9535	SMD/SMT	QSOP-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 R 595-TCA9535PWR PCA9535PWR Texas Instruments 1: $2.70 3,014In Stock	Mfr. Part No. PCA9535PWR Mouser Part No 595-PCA9535PWR	Texas Instruments	Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander R 595-TCA9535PWR	Datasheet	3,014In Stock	Cut Tape $2.70 $2.00 $1.83 $1.64 Reel $1.41 View $1.55 $1.50 $1.47 $1.37 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCA9535	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 PCA9535RGER Texas Instruments 1: $2.17 4,070In Stock	Mfr. Part No. PCA9535RGER Mouser Part No 595-PCA9535RGER	Texas Instruments	Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander	Datasheet	4,070In Stock	Cut Tape $2.17 $1.60 $1.46 $1.34 View Reel $1.25 $1.27 $1.25 $1.25 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	PCA9535	SMD/SMT	VQFN-24	I2C, Serial, SMBus		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 4-Bit I2C and SMBus I/O Expander ALT 595-PCA9536DGKR PCA9536DGKRG4 Texas Instruments 1: $1.58 2,174In Stock 2,500Expected 18/01/2027	Mfr. Part No. PCA9536DGKRG4 Mouser Part No 595-PCA9536DGKRG4	Texas Instruments	Interface - I/O Expanders Remote 4-Bit I2C and SMBus I/O Expander ALT 595-PCA9536DGKR	Datasheet	2,174In Stock 2,500Expected 18/01/2027	Cut Tape $1.58 $1.15 $1.05 $0.924 Reel $0.706 View $0.868 $0.834 $0.824 $0.69 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	PCA9536	SMD/SMT	VSSOP-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 Remote 8B I2C and Lo -Pwr I/O Expander PCA9554ARGTR Texas Instruments 1: $1.67 2,104In Stock 9,000Expected 15/02/2027	Mfr. Part No. PCA9554ARGTR Mouser Part No 595-PCA9554ARGTR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C and Lo -Pwr I/O Expander Learn More about Texas Instruments ti pca95xx	Datasheet	2,104In Stock 9,000Expected 15/02/2027	Cut Tape $1.67 $1.23 $1.12 $0.991 Reel $0.831 View $0.932 $0.897 $0.891 $0.813 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	PCA9554A	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 8-Bit I2C and SMBus I/O Expander A 595-PCA9554DW PCA9554DGVR Texas Instruments 1: $3.69 990In Stock	Mfr. Part No. PCA9554DGVR Mouser Part No 595-PCA9554DGVR	Texas Instruments	Interface - I/O Expanders Remote 8-Bit I2C and SMBus I/O Expander A 595-PCA9554DW	Datasheet	990In Stock	Cut Tape $3.69 $2.75 $2.52 $2.26 Reel $1.95 View $2.13 $2.09 $1.98 $1.93 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCA9554	SMD/SMT	TVSOP-16	I2C, Serial, SMBus	8 I/O		2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
Interface - I/O Expanders Remote 8B I2C & SMBu s I/O Expander A 59 A 595-TCA9554PWR PCA9554PWR Texas Instruments 1: $2.72 1,802In Stock	Mfr. Part No. PCA9554PWR Mouser Part No 595-PCA9554PWR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C & SMBu s I/O Expander A 59 A 595-TCA9554PWR	Datasheet	1,802In Stock	Cut Tape $2.72 $2.03 $1.86 $1.67 Reel $1.42 View $1.57 $1.54 $1.50 $1.39 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCA9554	SMD/SMT	TSSOP-16	I2C, Serial, SMBus	8 I/O		2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
Interface - I/O Expanders Remote 16-Bit I2C & SMBus I/O Expander A A 595-PCA9555DWR PCA9555DW Texas Instruments 1: $4.97 966In Stock	Mfr. Part No. PCA9555DW Mouser Part No 595-PCA9555DW	Texas Instruments	Interface - I/O Expanders Remote 16-Bit I2C & SMBus I/O Expander A A 595-PCA9555DWR	Datasheet	966In Stock	$4.97 $3.78 $3.48 $3.15 View $3.02 $3.01 $2.86	Min.: 1 Mult.: 1	PCA9555	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 Remote 16-Bit I2C & SMBus I/O Expander R R 595-TCA9555PWR PCA9555PWR Texas Instruments 1: $2.10 4,845In Stock 16,000On Order	Mfr. Part No. PCA9555PWR Mouser Part No 595-PCA9555PWR	Texas Instruments	Interface - I/O Expanders Remote 16-Bit I2C & SMBus I/O Expander R R 595-TCA9555PWR	Datasheet	4,845In Stock 16,000On Order On Order Ship Dates Mfr. No: PCA9555PWR Stock: 4,845 Can Dispatch Immediately On Order: 6,000 Expected 08/01/2027 10,000 Expected 21/01/2027 Factory Lead Time: 16 Weeks	Cut Tape $2.10 $1.55 $1.42 $1.27 Reel $1.08 View $1.19 $1.15 $1.13 $1.05 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCA9555	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 Remote 8B I2C & SMBu s I/O Expander A 59 A 595-PCA9557PW PCA9557PWR Texas Instruments 1: $2.06 3,386In Stock	Mfr. Part No. PCA9557PWR Mouser Part No 595-PCA9557PWR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C & SMBu s I/O Expander A 59 A 595-PCA9557PW Learn More about Texas Instruments ti pca95xx	Datasheet	3,386In Stock	Cut Tape $2.06 $1.52 $1.39 $1.24 Reel $1.08 View $1.17 $1.13 $1.10 $1.06 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCA9557	SMD/SMT	TSSOP-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 8bit I/O Expndr A 59 5-PCF8574ADW A 595- A 595-PCF8574ADW PCF8574ADWR Texas Instruments 1: $1.59 3,009In Stock 8,000Expected 08/02/2027	Mfr. Part No. PCF8574ADWR Mouser Part No 595-PCF8574ADWR	Texas Instruments	Interface - I/O Expanders 8bit I/O Expndr A 59 5-PCF8574ADW A 595- A 595-PCF8574ADW	Datasheet	3,009In Stock 8,000Expected 08/02/2027	Cut Tape $1.59 $1.16 $1.06 $0.935 Reel $0.783 View $0.879 $0.845 $0.837 $0.766 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCF8574A	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 8bit I/O Expndr A 59 5-PCF8574PW A 595-P A 595-PCF8574PW PCF8574PWR Texas Instruments 1: $1.82 4,022In Stock	Mfr. Part No. PCF8574PWR Mouser Part No 595-PCF8574PWR	Texas Instruments	Interface - I/O Expanders 8bit I/O Expndr A 59 5-PCF8574PW A 595-P A 595-PCF8574PW	Datasheet	4,022In Stock	Cut Tape $1.82 $1.34 $1.22 $1.09 Reel $0.942 View $1.02 $0.981 $0.978 $0.921 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 16-Bit I2C & SMBus I/O Expander A A 595-PCF8575CDBR PCF8575CDB Texas Instruments 1: $7.71 514In Stock	Mfr. Part No. PCF8575CDB Mouser Part No 595-PCF8575CDB	Texas Instruments	Interface - I/O Expanders Remote 16-Bit I2C & SMBus I/O Expander A A 595-PCF8575CDBR	Datasheet	514In Stock	$7.71 $5.96 $5.20 $4.98 View $4.74 $4.46 $4.36	Min.: 1 Mult.: 1	PCF8575C	SMD/SMT	SSOP-24	I2C, Serial, SMBus	16 I/O	With Interrupt	4.5 V	5.5 V	400 kHz	- 40 C	+ 85 C		Tube	2 kV
Interface - I/O Expanders Lo-Vltg 8B I2C & SMB us I/O Expander TCA6408APWR Texas Instruments 1: $1.60 5,431In Stock	Mfr. Part No. TCA6408APWR Mouser Part No 595-TCA6408APWR	Texas Instruments	Interface - I/O Expanders Lo-Vltg 8B I2C & SMB us I/O Expander	Datasheet	5,431In Stock	Cut Tape $1.60 $1.17 $1.06 $0.941 View Reel $0.824 $0.885 $0.851 $0.843 $0.824 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	TCA6408A	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 Automotive 8-bit tra nslating I2C/SMBus TCA6408AQPWRQ1 Texas Instruments 1: $2.19 2,671In Stock 6,000Expected 05/11/2026	Mfr. Part No. TCA6408AQPWRQ1 Mouser Part No 595-TCA6408AQPWRQ1	Texas Instruments	Interface - I/O Expanders Automotive 8-bit tra nslating I2C/SMBus	Datasheet	2,671In Stock 6,000Expected 05/11/2026	Cut Tape $2.19 $1.62 $1.48 $1.32 Reel $1.15 View $1.25 $1.21 $1.17 $1.10 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	TCA6408A	SMD/SMT	TSSOP-16	I2C, Serial, SMBus	8 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 Lo-Vltg 8B I2C & SMB us I/O Expander TCA6408ARGTR Texas Instruments 1: $1.47 16,481In Stock 27,000Expected 21/01/2027	Mfr. Part No. TCA6408ARGTR Mouser Part No 595-TCA6408ARGTR	Texas Instruments	Interface - I/O Expanders Lo-Vltg 8B I2C & SMB us I/O Expander	Datasheet	16,481In Stock 27,000Expected 21/01/2027	Cut Tape $1.47 $1.07 $0.97 $0.86 $0.824 Reel $0.824 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	TCA6408A	SMD/SMT	VQFN-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 Lo-Vltg 16B I2C & SM Bus I/O Exp TCA6416APWR Texas Instruments 1: $1.73 4,159In Stock	Mfr. Part No. TCA6416APWR Mouser Part No 595-TCA6416APWR	Texas Instruments	Interface - I/O Expanders Lo-Vltg 16B I2C & SM Bus I/O Exp	Datasheet	4,159In Stock	Cut Tape $1.73 $1.29 $1.18 $1.06 Reel $0.913 View $0.981 $0.977 $0.974 $0.892 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