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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 NCA9595PW-Q100/SOT355/TSSOP24 NCA9595PW-Q100J Nexperia 1: £1.69 2,234In Stock	Mfr. Part No. NCA9595PW-Q100J Mouser Part No 771-NCA9595PW-Q100J	Nexperia	Interface - I/O Expanders NCA9595PW-Q100/SOT355/TSSOP24	Datasheet	2,234In Stock	Cut Tape £1.69 £1.26 £1.14 £1.02 Reel £0.863 View £0.969 £0.943 £0.899 £0.849 MouseReel Available	Min.: 1 Mult.: 1 : 2,500		SMD/SMT	TSSOP-24	I2C, Serial	16 I/O	With Interrupt	1.65 V	5.5 V	400 kHz	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape, MouseReel	With ESD Protection
Interface - I/O Expanders NCA9535PW-Q100/SOT355/TSSOP24 NCA9535PW-Q100J Nexperia 1: £1.23 13,013In Stock	Mfr. Part No. NCA9535PW-Q100J Mouser Part No 771-NCA9535PW-Q100J	Nexperia	Interface - I/O Expanders NCA9535PW-Q100/SOT355/TSSOP24 Learn More about Nexperia nca9535 nca9539 nca9555 gipo expanders	Datasheet	13,013In Stock	Cut Tape £1.23 £0.899 £0.818 £0.721 Reel £0.602 View £0.678 £0.651 £0.643 £0.588 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 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Reset, Low Power version of PCA9555 in TSSOP24 package PCA9539RPW/Q900J NXP Semiconductors 1: £1.96 2,047In Stock	Mfr. Part No. PCA9539RPW/Q900J Mouser Part No 771-PCA9539RPW/Q900J	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	2,047In Stock	Cut Tape £1.96 £1.41 £1.34 £1.20 Reel £0.995 View £1.13 £1.10 £1.07 £0.96 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	AEC-Q100	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554A in TSSOP16 package PCA9554PW/Q900,118 NXP Semiconductors 1: £2.17 3,373In Stock	Mfr. Part No. PCA9554PW/Q900,118 Mouser Part No 771-PCA9554PWQ900118	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Different Address with PCA9554A in TSSOP16 package	Datasheet	3,373In Stock	Cut Tape £2.17 £1.62 £1.48 £1.33 View Reel £1.10 £1.26 £1.23 £1.17 £1.10 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	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	AEC-Q100	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders Automotive 16-bit lo w voltage I C/SMBus TCAL9539RTWRQ1 Texas Instruments 1: £2.37 14,345In Stock	Mfr. Part No. TCAL9539RTWRQ1 Mouser Part No 595-TCAL9539RTWRQ1	Texas Instruments	Interface - I/O Expanders Automotive 16-bit lo w voltage I C/SMBus Learn More about Texas Instruments ti tcal9539r i2c bus smbus io expander	Datasheet	14,345In Stock	Cut Tape £2.37 £1.77 £1.62 £1.45 View Reel £1.20 £1.37 £1.34 £1.27 £1.23 £1.20 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	TCAL9539	SMD/SMT	WQFN-24	I2C, Serial	16 I/O	With Interrupt	1.08 V	3.6 V	1 MHz	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape, MouseReel
Interface - I/O Expanders 22-bit SPI Level Translating I/O Expander with Agile I/O and AEC-Q100 Compliant in HVQFN32 package PCAL9722HN/Q900MP NXP Semiconductors 1: £1.69 46,447In Stock	Mfr. Part No. PCAL9722HN/Q900MP Mouser Part No 771-PCAL9722HNQ900MP	NXP Semiconductors	Interface - I/O Expanders 22-bit SPI Level Translating I/O Expander with Agile I/O and AEC-Q100 Compliant in HVQFN32 package Learn More about NXP Semiconductors nxp pcal9722 expanders	Datasheet	46,447In Stock	Cut Tape £1.69 £1.26 £1.15 £1.02 View Reel £0.849 £0.969 £0.943 £0.849 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	PCAL9722	SMD/SMT	HVQFN-32	Serial, SPI		With Interrupt	1.1 V	5.5 V	5 MHz	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders NCA9555BY-Q100/SOT8041/HWQFN24 NCA9555BY-Q100HP Nexperia 1: £1.40 3,083In Stock	Mfr. Part No. NCA9555BY-Q100HP Mouser Part No 771-NCA9555BY-Q100HP	Nexperia	Interface - I/O Expanders NCA9555BY-Q100/SOT8041/HWQFN24 Learn More about Nexperia nca9535 nca9539 nca9555 gipo expanders	Datasheet	3,083In Stock	Cut Tape £1.40 £1.03 £0.934 £0.834 Reel £0.698 View £0.78 £0.75 £0.747 £0.677 MouseReel Available	Min.: 1 Mult.: 1 : 3,000		SMD/SMT	HWQFN-24	I2C, Serial, SMBus	16 I/O	With Interrupt	1.65 V	5.5 V	100 kHz, 400 kHz	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape, MouseReel
Interface - I/O Expanders 14-bit SPI Level Translating I/O Expander with Agile I/O and AEC-Q100 Compliant in HVQFN24 package PCAL9714HN/Q900MP NXP Semiconductors 1: £1.32 7,200In Stock	Mfr. Part No. PCAL9714HN/Q900MP Mouser Part No 771-PCAL9714HNQ900MP	NXP Semiconductors	Interface - I/O Expanders 14-bit SPI Level Translating I/O Expander with Agile I/O and AEC-Q100 Compliant in HVQFN24 package Learn More about NXP Semiconductors nxp pcal9714 expanders	Datasheet	7,200In Stock	Cut Tape £1.32 £0.969 £0.882 £0.788 View Reel £0.646 £0.736 £0.708 £0.688 £0.668 £0.646	Min.: 1 Mult.: 1 : 6,000	PCAL9714	SMD/SMT	HVQFN-24	I2C, Serial		With Interrupt	1.1 V	5.5 V	5 MHz	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape	2 kV
Interface - I/O Expanders NCA9539PW-Q100/SOT355/TSSOP24 NCA9539PW-Q100J Nexperia 1: £1.39 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 £1.39 £1.02 £0.934 £0.826 Reel £0.698 View £0.78 £0.748 £0.746 £0.684 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 Automotive 8-bit tra nslating I2C/SMBus TCA6408AQPWRQ1 Texas Instruments 1: £1.64 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 £1.64 £1.21 £1.11 £0.995 Reel £0.863 View £0.943 £0.908 £0.882 £0.826 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 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Reset in TSSOP16 package PCA9538PW/Q900,118 NXP Semiconductors 1: £2.23 108In Stock	Mfr. Part No. PCA9538PW/Q900,118 Mouser Part No 771-PCA9538PW/Q90011	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt and Reset in TSSOP16 package	Datasheet	108In Stock	Cut Tape £2.23 £1.66 £1.52 £1.37 Reel £1.14 View £1.29 £1.27 £1.10 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	PCA9538	SMD/SMT	TSSOP-16	I2C, Serial, SMBus	8 I/O	With Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C	AEC-Q100	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 16-Bit, Open Drain I/O Expander with I2C Interface MCP23S18T-E/MJVAO Microchip Technology 1: £1.62 11In Stock Factory Special Order	Mfr. Part No. MCP23S18T-E/MJVAO Mouser Part No 579-MCP23S18T-EMJVAO Factory Special Order	Microchip Technology	Interface - I/O Expanders 16-Bit, Open Drain I/O Expander with I2C Interface	Datasheet	11In Stock	Cut Tape £1.62 View Reel £1.35 £1.59 £1.35	Min.: 1 Mult.: 1 : 3,300		SMD/SMT	QFN-24	Serial, SPI	16 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape	Without ESD Protection
Interface - I/O Expanders Automotive Low Volta ge 16bit TCA9539QPWRQ1 Texas Instruments 1: £2.65 25,521On Order	Mfr. Part No. TCA9539QPWRQ1 Mouser Part No 595-TCA9539QPWRQ1	Texas Instruments	Interface - I/O Expanders Automotive Low Volta ge 16bit	Datasheet	25,521On Order On Order Ship Dates Mfr. No: TCA9539QPWRQ1 Stock: 0 On Order: 1,521 Expected 03/12/2026 8,000 Expected 17/12/2026 16,000 Expected 24/12/2026 Factory Lead Time: 16 Weeks	Cut Tape £2.65 £2.01 £1.84 £1.66 Reel £1.42 View £1.57 £1.55 £1.51 £1.41 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 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Reset in TSSOP24 package PCA9539PW/Q900,118 NXP Semiconductors 1: £2.03 47,500On Order	Mfr. Part No. PCA9539PW/Q900,118 Mouser Part No 771-PCA9539PW/Q90011	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Reset in TSSOP24 package	Datasheet	47,500On Order On Order Ship Dates Mfr. No: PCA9539PW/Q900,118 Stock: 0 On Order: 37,500 Expected 08/10/2026 10,000 Expected 19/10/2026 Factory Lead Time: 30 Weeks	Cut Tape £2.03 £1.51 £1.34 £1.23 Reel £1.07 View £1.17 £1.15 £1.13 £1.05 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	AEC-Q100	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders NCA9555PW-Q100/SOT355/TSSOP24 NCA9555PW-Q100J Nexperia 1: £1.41 2,473Expected 23/10/2026	Mfr. Part No. NCA9555PW-Q100J Mouser Part No 771-NCA9555PW-Q100J	Nexperia	Interface - I/O Expanders NCA9555PW-Q100/SOT355/TSSOP24 Learn More about Nexperia nca9555pw expanders	Datasheet	2,473Expected 23/10/2026	Cut Tape £1.41 £1.01 £0.925 £0.826 Reel £0.692 View £0.773 £0.743 £0.739 £0.674 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	AEC-Q100	Reel, Cut Tape, MouseReel

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