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Interface - I/O Expanders

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) 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: £6.90 189In Stock	Mfr. Part No. MAX7318ATG+ Mouser Part No 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	£6.90 £5.34 £4.96 £4.53	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: £6.90 32In Stock	Mfr. Part No. MAX7318AWG+ Mouser Part No 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	£6.90 £5.34 £4.96 £4.53 View £4.16 £4.03 £3.94 £3.77 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: £5.31 61In Stock	Mfr. Part No. MAX7319AEE+ Mouser Part No 700-MAX7319AEE+	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expander with Eight Inputs and	Datasheet	61In Stock	£5.31 £4.07 £3.76 £3.20 View £3.16 £3.07 £3.01 £2.95 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: £4.87 358In Stock	Mfr. Part No. MAX7321AEE+ Mouser Part No 700-MAX7321AEE	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expander with 8 Open-Drain I/Os	Datasheet	358In Stock	£4.87 £3.74 £3.46 £2.92	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: £3.47 202In Stock	Mfr. Part No. MAX7321ATE+ Mouser Part No 700-MAX7321ATE	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expander with 8 Open-Drain I/Os	Datasheet	202In Stock	£3.47 £2.62 £2.41 £2.04	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: £5.01 124In Stock	Mfr. Part No. MAX7322ATE+T Mouser Part No 700-MAX7322ATET	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expander with 4 Push-Pull Outpu	Datasheet	124In Stock	Cut Tape £5.01 £3.84 £3.56 £3.56 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: £5.22 3In Stock	Mfr. Part No. MAX7324AEG+ Mouser Part No 700-MAX7324AEG	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expander with Eight Push-Pull O	Datasheet	3In Stock	£5.22 £4.00 £3.40 £3.35 View £3.20 £3.02 £2.95 £2.90	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: £2.91 8In Stock	Mfr. Part No. MAX7327AATG+ Mouser Part No 700-MAX7327AATG+	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expander with 12 Push-Pull Outp	Datasheet	8In Stock	£2.91 £2.85 £2.83	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: £4.95 94In Stock	Mfr. Part No. MAX7328AWE+ Mouser Part No 700-MAX7328AWE+	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expanders with Eight I/O Ports	Datasheet	94In Stock	£4.95 £3.79 £3.51 £3.19 View £2.94 £2.85 £2.80 £2.76 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 No. MAX7329AWE+ Mouser Part No 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: £1.85 360In Stock	Mfr. Part No. MAX7329AWE+T Mouser Part No 700-MAX7329AWET	Analog Devices / Maxim Integrated	Interface - I/O Expanders IC Port Expanders with Eight I/O Ports	Datasheet	360In Stock	Cut Tape £1.85 £1.81 £1.81 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: £1.48 5In Stock	Mfr. Part No. PCA9554PW,112 Mouser Part No 771-PCA9554PW112	NXP Semiconductors	Interface - I/O Expanders I2C I/O EXPANDER GP	Datasheet	5In Stock	£1.48 £1.09 £0.995 £0.882 View £0.826 £0.796 £0.746 £0.73	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: £1.30 15In Stock 2,500Expected 06/11/2026 New Product	Mfr. Part No. NCA6416PWJ Mouser Part No 771-NCA6416PWJ New Product	Nexperia	Interface - I/O Expanders NCA6416PW/SOT355/TSSOP24 Learn More about Nexperia nca6416 io expanders	Datasheet	15In Stock 2,500Expected 06/11/2026	Cut Tape £1.30 £0.952 £0.871 £0.773 Reel £0.651 View £0.726 £0.699 £0.695 £0.636 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: £3.00 445In Stock	Mfr. Part No. ADP5587ACBZ-R7 Mouser Part No 584-ADP5587ACBZ-R7	Analog Devices	Interface - I/O Expanders Column Keypad Scanner & GPIO Port Expand	Datasheet	445In Stock	Cut Tape £3.00 £2.28 £2.09 £1.89 £1.79 £1.79 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: £0.684 47,516On Order	Mfr. Part No. KTS1622EUAA-TR Mouser Part No 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. No: KTS1622EUAA-TR Stock: 0 On Order: 1,016 Expected 28/10/2026 46,500 Expected 03/12/2026 Factory Lead Time: 7 Weeks	Cut Tape £0.684 £0.491 £0.443 £0.389 Reel £0.32 View £0.364 £0.348 £0.33 £0.314 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: £1.52 27,357On Order	Mfr. Part No. PCA9557RGVR Mouser Part No 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. No: PCA9557RGVR Stock: 0 On Order: 2,357 Expected 10/12/2026 5,000 Expected 21/12/2026 10,000 Expected 25/12/2026 10,000 Expected 14/01/2027 Factory Lead Time: 12 Weeks	Cut Tape £1.52 £1.12 £1.02 £0.89 Reel £0.746 View £0.841 £0.811 £0.796 £0.725 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: £1.75 16,859Expected 07/01/2027	Mfr. Part No. PCA9534ARGTR Mouser Part No 595-PCA9534ARGTR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C and Lo -Pwr I/O Expander	Datasheet	16,859Expected 07/01/2027	Cut Tape £1.75 £1.30 £1.19 £1.07 Reel £0.925 View £1.00 £0.978 £0.952 £0.899 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: £1.82 12,000On Order	Mfr. Part No. PCA9555RGER Mouser Part No 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. No: PCA9555RGER Stock: 0 On Order: 3,000 Expected 08/01/2027 9,000 Expected 11/03/2027 Factory Lead Time: 20 Weeks	Cut Tape £1.82 £1.34 £1.22 £1.10 View Reel £0.995 £1.07 £1.04 £0.995 £0.995 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: £1.54 15,435Expected 23/11/2026	Mfr. Part No. PCF8574DWR Mouser Part No 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 23/11/2026	Cut Tape £1.54 £1.14 £1.04 £0.925 Reel £0.788 View £0.871 £0.841 £0.826 £0.766 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: £0.676 89,893On Order	Mfr. Part No. TCA6408ARSVR Mouser Part No 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. No: TCA6408ARSVR Stock: 0 On Order: 23,893 Expected 17/12/2026 12,000 Expected 14/01/2027 54,000 Expected 01/03/2027 Factory Lead Time: 20 Weeks	Cut Tape £0.676 £0.619 Reel £0.619 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: £1.48 56,080On Order	Mfr. Part No. TCA9535RGER Mouser Part No 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. No: TCA9535RGER Stock: 0 On Order: 26,080 Expected 24/12/2026 3,000 Expected 31/12/2026 27,000 Expected 07/01/2027 Factory Lead Time: 20 Weeks	Cut Tape £1.48 £1.10 £0.995 £0.89 Reel £0.726 View £0.826 £0.796 £0.712 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: £1.28 76,640On Order	Mfr. Part No. TCA9535RTWR Mouser Part No 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	76,640On Order On Order Ship Dates Mfr. No: TCA9535RTWR Stock: 0 On Order: 31,640 Expected 17/12/2026 45,000 Expected 14/10/2027 Factory Lead Time: 20 Weeks	Cut Tape £1.28 £0.943 £0.856 £0.759 View Reel £0.667 £0.698 £0.671 £0.667 £0.667 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: £1.83 16,159On Order New Product	Mfr. Part No. TCA9539AQPWRQ1 Mouser Part No 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. No: TCA9539AQPWRQ1 Stock: 0 On Order: 4,159 Expected 07/01/2027 3,000 Expected 04/02/2027 9,000 Expected 25/02/2027 Factory Lead Time: 20 Weeks	Cut Tape £1.83 £1.36 £1.25 £1.11 View Reel £1.02 £1.05 £1.02 £1.02 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: £2.65 25,501On Order	Mfr. Part No. TCA9539QPWRQ1 Mouser Part No 595-TCA9539QPWRQ1	Texas Instruments	Interface - I/O Expanders Automotive Low Volta ge 16bit	Datasheet	25,501On Order On Order Ship Dates Mfr. No: TCA9539QPWRQ1 Stock: 0 On Order: 15,501 Expected 24/12/2026 2,000 Expected 07/01/2027 8,000 Expected 21/01/2027 Factory Lead Time: 20 Weeks	Cut Tape £2.65 £2.01 £1.84 £1.66 View Reel £1.52 £1.57 £1.55 £1.52 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: £1.48 32,988Expected 21/01/2027	Mfr. Part No. TCA9555RGER Mouser Part No 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 21/01/2027	Cut Tape £1.48 £1.10 £0.995 £0.89 View Reel £0.791 £0.841 £0.811 £0.791 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