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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 Remote 8B I2C & Lo- Pwr I/O Expander PCA9534RGVR Texas Instruments 1: £1.49 28,524On Order	Mfr. Part No. PCA9534RGVR Mouser Part No 595-PCA9534RGVR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C & Lo- Pwr I/O Expander	Datasheet	28,524On Order On Order Ship Dates Mfr. No: PCA9534RGVR Stock: 0 On Order: 6,024 Expected 25/01/2027 15,000 Expected 08/03/2027 7,500 Expected 06/05/2027 Factory Lead Time: 16 Weeks	Cut Tape £1.49 £1.20 £1.09 £0.969 Reel £0.818 View £0.917 £0.882 £0.849 £0.796 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	PCA9534	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 8bit I/O Expndr A 59 5-PCF8574DW A 595-P A 595-PCF8574DW PCF8574DWR Texas Instruments 1: £1.54 14,806Expected 26/11/2026	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	14,806Expected 26/11/2026	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 99,798On 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	99,798On Order On Order Ship Dates Mfr. No: TCA6408ARSVR Stock: 0 On Order: 9,798 Expected 03/12/2026 39,000 Expected 10/12/2026 39,000 Expected 17/12/2026 12,000 Expected 07/01/2027 Factory Lead Time: 16 Weeks	Cut Tape £0.676 £0.488 £0.44 £0.387 Reel £0.318 View £0.361 £0.346 £0.335 £0.309 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 59,265On 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	59,265On Order On Order Ship Dates Mfr. No: TCA9535RGER Stock: 0 On Order: 29,265 Expected 24/12/2026 3,000 Expected 31/12/2026 27,000 Expected 07/01/2027 Factory Lead Time: 16 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 77,499On 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	77,499On Order On Order Ship Dates Mfr. No: TCA9535RTWR Stock: 0 On Order: 32,499 Expected 17/12/2026 45,000 Expected 15/01/2027 Factory Lead Time: 16 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 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 1.65 to 5.5V 16-bit I2C TCA9555RGER Texas Instruments 1: £1.48 33,000Expected 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	33,000Expected 21/01/2027	Cut Tape £1.48 £1.10 £0.995 £0.89 Reel £0.751 View £0.841 £0.811 £0.796 £0.737 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
Interface - I/O Expanders Remote 8-Bit I/O Exp ander for I2C-Bus PCF8574RGTR Texas Instruments 1: £1.42 8,163Expected 26/10/2026	Mfr. Part No. PCF8574RGTR Mouser Part No 595-PCF8574RGTR	Texas Instruments	Interface - I/O Expanders Remote 8-Bit I/O Exp ander for I2C-Bus	Datasheet	8,163Expected 26/10/2026	Cut Tape £1.42 £1.07 £0.952 £0.849 Reel £0.718 View £0.803 £0.773 £0.766 £0.706 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	PCF8574	SMD/SMT	VQFN-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 16-Bit I2C & SMBus L o-Pwr I/O Expander PCA9539RGER Texas Instruments 1: £1.71 7,625On Order	Mfr. Part No. PCA9539RGER Mouser Part No 595-PCA9539RGER	Texas Instruments	Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander	Datasheet	7,625On Order On Order Ship Dates Mfr. No: PCA9539RGER Stock: 0 On Order: 1,625 Expected 14/01/2027 3,000 Expected 21/01/2027 3,000 Expected 29/01/2027 Factory Lead Time: 16 Weeks	Cut Tape £1.71 £1.26 £1.15 £1.03 Reel £0.849 View £0.978 £0.943 £0.834 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	PCA9539	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 1.65V to 5.5V Remote 4-Bit I2C and SMBus TCA9536ADTMR Texas Instruments 1: £1.34 10,790Expected 15/02/2027	Mfr. Part No. TCA9536ADTMR Mouser Part No 595-TCA9536ADTMR	Texas Instruments	Interface - I/O Expanders 1.65V to 5.5V Remote 4-Bit I2C and SMBus Learn More about Texas Instruments ti tca9536 io expander	Datasheet	10,790Expected 15/02/2027	Cut Tape £1.34 £0.986 £0.89 £0.796 View Reel £0.655 £0.746 £0.718 £0.715 £0.691 £0.655 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	TCA9536	SMD/SMT	X2SON-8	I2C, SMBus	4 I/O	With Interrupt	1.65 V	5.5 V	1 MHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	1 kV, 2 kV, 4 kV
Interface - I/O Expanders Remote 4-Bit I² C and SMBus I/O exp TCA9537DGSR Texas Instruments 1: £1.22 3,018Expected 20/10/2026	Mfr. Part No. TCA9537DGSR Mouser Part No 595-TCA9537DGSR	Texas Instruments	Interface - I/O Expanders Remote 4-Bit I² C and SMBus I/O exp Learn More about Texas Instruments ti tca9537 expander	Datasheet	3,018Expected 20/10/2026	Cut Tape £1.22 £0.899 £0.818 £0.724 Reel £0.608 View £0.68 £0.655 £0.65 £0.594 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	TCA9537	SMD/SMT	VSSOP-10	I2C, Serial	4 I/O	With Interrupt	1.65 V	5.5 V	1 MHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders Rem 8B I2C & SMBus L o-Pwr I/O Expander TCA9538PWR Texas Instruments 1: £1.53 9,513Expected 17/12/2026	Mfr. Part No. TCA9538PWR Mouser Part No 595-TCA9538PWR	Texas Instruments	Interface - I/O Expanders Rem 8B I2C & SMBus L o-Pwr I/O Expander	Datasheet	9,513Expected 17/12/2026	Cut Tape £1.53 £1.13 £1.02 £0.917 View Reel £0.834 £0.863 £0.834 £0.834 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,001 : 2,000	TCA9538	SMD/SMT	TSSOP-16	I2C, Serial	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 16-bit 1. 65 to 3.6V I2C/SMBu TCA9539AQPWRQ1 Texas Instruments 1: £1.87 7,169On 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	7,169On Order On Order Ship Dates Mfr. No: TCA9539AQPWRQ1 Stock: 0 On Order: 4,169 Expected 07/01/2027 3,000 Expected 04/02/2027 Factory Lead Time: 16 Weeks	Cut Tape £1.87 £1.39 £1.27 £1.13 View Reel £1.05 £1.07 £1.05 £1.05 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 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan A 595-TCA9554DWT TCA9554DWR Texas Instruments 1: £1.26 1,748Expected 15/10/2026	Mfr. Part No. TCA9554DWR Mouser Part No 595-TCA9554DWR	Texas Instruments	Interface - I/O Expanders 8-bit 1.65- to 5.5-V I2C/SMBus I/O expan A 595-TCA9554DWT Learn More about Texas Instruments ti tca9554 tca9554a expander	Datasheet	1,748Expected 15/10/2026	Cut Tape £1.26 £0.917 £0.834 £0.74 Reel £0.622 View £0.697 £0.67 £0.665 £0.608 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	TCA9554	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 translating I& sup2;C-bus/SMBus I/ TCAL6408DTUR Texas Instruments 1: £1.15 3,000Expected 28/01/2027	Mfr. Part No. TCAL6408DTUR Mouser Part No 595-TCAL6408DTUR	Texas Instruments	Interface - I/O Expanders 8-bit translating I& sup2;C-bus/SMBus I/ Learn More about Texas Instruments ti tcal6408 i2c bus smbus io expander	Datasheet	3,000Expected 28/01/2027	Cut Tape £1.15 £0.841 £0.766 £0.675 Reel £0.554 View £0.635 £0.609 £0.603 £0.544 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	TCAL6408	SMD/SMT	X2QFN-16	I2C, Serial	8 I/O	With Interrupt	1.08 V	3.6 V	1 MHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	4 kV
Interface - I/O Expanders 16-bit translating I C-bus/SMBus I/O exp TCAL6416RTWR Texas Instruments 1: £1.58 5,889Expected 29/10/2026	Mfr. Part No. TCAL6416RTWR Mouser Part No 595-TCAL6416RTWR	Texas Instruments	Interface - I/O Expanders 16-bit translating I C-bus/SMBus I/O exp Learn More about Texas Instruments ti tcal6416 expander	Datasheet	5,889Expected 29/10/2026	Cut Tape £1.58 £1.17 £1.07 £0.952 Reel £0.796 View £0.899 £0.871 £0.856 £0.773 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	TCAL6416	SMD/SMT	WQFN-24	I2C, Serial	16 I/O	With Interrupt	1.08 V	3.6 V	100 kHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	4 kV
Interface - I/O Expanders 16-bit low-voltage I C-bus and SMBus I/O TCAL9539RTWR Texas Instruments 1: £1.68 9,750Expected 29/10/2026	Mfr. Part No. TCAL9539RTWR Mouser Part No 595-TCAL9539RTWR	Texas Instruments	Interface - I/O Expanders 16-bit low-voltage I C-bus and SMBus I/O Learn More about Texas Instruments ti tcal9539r i2c bus smbus io expander	Datasheet	9,750Expected 29/10/2026	Cut Tape £1.68 £1.23 £1.13 £1.00 View Reel £0.803 £0.943 £0.917 £0.871 £0.863 £0.803 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		Reel, Cut Tape, MouseReel
Interface - I/O Expanders 16-bit SPI bus I/O expander with interrupt, reset and I/O configurable registers TXE8116RGER Texas Instruments 1: £0.899 5,000Expected 07/10/2026 New Product	Mfr. Part No. TXE8116RGER Mouser Part No 595-TXE8116RGER New Product	Texas Instruments	Interface - I/O Expanders 16-bit SPI bus I/O expander with interrupt, reset and I/O configurable registers Learn More about Texas Instruments ti txe8116 16 bit spi bus i o expander	Datasheet	5,000Expected 07/10/2026	Cut Tape £0.899 £0.652 £0.591 £0.522 View Reel £0.425 £0.49 £0.47 £0.453 £0.447 £0.425 MouseReel Available	Min.: 1 Mult.: 1 : 5,000	TXE8116	SMD/SMT	VQFN-24	SPI		With Interrupt	1.65 V	5.5 V	5 MHz, 10 MHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel
Interface - I/O Expanders 48-bit SPI bus I/O expander with interrupt, reset, and I/O configurable registers TXE8148DGGR Texas Instruments 1: £1.68 2,500Expected 08/01/2027 New Product	Mfr. Part No. TXE8148DGGR Mouser Part No 595-TXE8148DGGR New Product	Texas Instruments	Interface - I/O Expanders 48-bit SPI bus I/O expander with interrupt, reset, and I/O configurable registers Learn More about Texas Instruments ti txe8148 48 bit spi bus io expander	Datasheet	2,500Expected 08/01/2027	Cut Tape £1.68 £1.23 £1.13 £1.00 £0.943 Reel £0.788 MouseReel Available	Min.: 1 Mult.: 1 : 2,500		SMD/SMT	TSSOP-56	SPI	48 I/O	With Interrupt	1.65 V	5.5 V	10 MHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 16 bit In/Out MCP23016T-I/SS Microchip Technology 2,100: £1.43 Non-Stocked Lead-Time 7 Weeks	Mfr. Part No. MCP23016T-I/SS Mouser Part No 579-MCP23016T-I/SS	Microchip Technology	Interface - I/O Expanders 16 bit In/Out	Datasheet	Non-Stocked Lead-Time 7 Weeks	Reel £1.43	Min.: 2,100 Mult.: 2,100 : 2,100		SMD/SMT	SSOP-28	I2C, Serial	16 I/O	With Interrupt	5.5 V	5.5 V	400 kHz	- 40 C	+ 85 C		Reel	Without ESD Protection
Interface - I/O Expanders Digital CAN I/O MCP25020-E/P Microchip Technology 1: £3.22 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. MCP25020-E/P Mouser Part No 579-MCP25020-E/P	Microchip Technology	Interface - I/O Expanders Digital CAN I/O	Datasheet	Non-Stocked Lead-Time 10 Weeks	£3.22 £2.68 £2.44	Min.: 1 Mult.: 1		Through Hole	PDIP-14				5.5 V	5.5 V		- 65 C	+ 150 C		Tube
Interface - I/O Expanders Digital CAN I/O MCP25020-E/SL Microchip Technology 1: £3.30 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. MCP25020-E/SL Mouser Part No 579-MCP25020-E/SL	Microchip Technology	Interface - I/O Expanders Digital CAN I/O	Datasheet	Non-Stocked Lead-Time 10 Weeks	£3.30 £2.77	Min.: 1 Mult.: 1		SMD/SMT	SOIC-14				5.5 V	5.5 V		- 65 C	+ 150 C		Tube
Interface - I/O Expanders Digital CAN I/O MCP25020T-E/SL Microchip Technology 2,600: £2.44 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. MCP25020T-E/SL Mouser Part No 579-MCP25020T-E/SL	Microchip Technology	Interface - I/O Expanders Digital CAN I/O	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel £2.44	Min.: 2,600 Mult.: 2,600 : 2,600		SMD/SMT	SOIC-14				5.5 V	5.5 V		- 65 C	+ 150 C		Reel
Interface - I/O Expanders Digital CAN I/O MCP25020T-I/SL Microchip Technology 2,600: £2.28 Non-Stocked Lead-Time 10 Weeks	Mfr. Part No. MCP25020T-I/SL Mouser Part No 579-MCP25020T-I/SL	Microchip Technology	Interface - I/O Expanders Digital CAN I/O	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel £2.28	Min.: 2,600 Mult.: 2,600 : 2,600		SMD/SMT	SOIC-14				5.5 V	5.5 V		- 65 C	+ 150 C		Reel
Interface - I/O Expanders Digital 1 Wire capab MCP25025-I/P Microchip Technology 1: £3.25 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. MCP25025-I/P Mouser Part No 579-MCP25025-I/P	Microchip Technology	Interface - I/O Expanders Digital 1 Wire capab	Datasheet	Non-Stocked Lead-Time 9 Weeks	£3.25 £2.73	Min.: 1 Mult.: 1		Through Hole	PDIP-14	CAN	8 I/O	Without Interrupt	2.7 V	5.5 V	4 MHz	- 65 C	+ 150 C		Tube	3.5 kV