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With Interrupt 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	Packaging	ESD Protection
Interface - I/O Expanders 16B I/O Expander I2C interface MCP23018-E/SP Microchip Technology 1: £1.60 383In Stock	Mfr. Part No. MCP23018-E/SP Mouser Part No 579-MCP23018-E/SP	Microchip Technology	Interface - I/O Expanders 16B I/O Expander I2C interface	Datasheet	383In Stock	£1.60 £1.34 £1.20	Min.: 1 Mult.: 1		Through Hole	SPDIP-28	I2C, Serial	16 I/O	With Interrupt	1.8 V	5.5 V	3.4 MHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders 8-bit I/O Expander SPI interface MCP23S09-E/P Microchip Technology 1: £1.27 211In Stock	Mfr. Part No. MCP23S09-E/P Mouser Part No 579-MCP23S09-E/P	Microchip Technology	Interface - I/O Expanders 8-bit I/O Expander SPI interface	Datasheet	211In Stock	£1.27 £1.05 £0.96	Min.: 1 Mult.: 1		Through Hole	PDIP-18	Serial, SPI	8 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	Tube	4 kV
Interface - I/O Expanders 8-bit I/O Expander SPI interface MCP23S09-E/SO Microchip Technology 1: £1.21 283In Stock 294Expected 29/10/2026	Mfr. Part No. MCP23S09-E/SO Mouser Part No 579-MCP23S09-E/SO	Microchip Technology	Interface - I/O Expanders 8-bit I/O Expander SPI interface	Datasheet	283In Stock 294Expected 29/10/2026	£1.21 £1.01 £0.934	Min.: 1 Mult.: 1		SMD/SMT	SOIC-18	Serial, SPI	8 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	Tube	4 kV
Interface - I/O Expanders 8-bit I/O Expander SPI interface MCP23S09T-E/SO Microchip Technology 1: £1.27 1,086In Stock	Mfr. Part No. MCP23S09T-E/SO Mouser Part No 579-MCP23S09T-E/SO	Microchip Technology	Interface - I/O Expanders 8-bit I/O Expander SPI interface	Datasheet	1,086In Stock	Cut Tape £1.27 £1.07 Reel £0.969 MouseReel Available	Min.: 1 Mult.: 1 : 1,100		SMD/SMT	SOIC-18	Serial, SPI	8 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	4 kV
Interface - I/O Expanders 16B I/O Expander SPI interface MCP23S18-E/SO Microchip Technology 1: £1.62 821Expected 04/01/2027	Mfr. Part No. MCP23S18-E/SO Mouser Part No 579-MCP23S18-E/SO	Microchip Technology	Interface - I/O Expanders 16B I/O Expander SPI interface	Datasheet	821Expected 04/01/2027	£1.62 £1.35 £1.22	Min.: 1 Mult.: 1		SMD/SMT	SOIC-28	Serial, SPI	16 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders 16B I/O Expander SPI interface MCP23S18-E/SP Microchip Technology 1: £1.69 500In Stock	Mfr. Part No. MCP23S18-E/SP Mouser Part No 579-MCP23S18-E/SP	Microchip Technology	Interface - I/O Expanders 16B I/O Expander SPI interface	Datasheet	500In Stock	£1.69 £1.41 £1.27	Min.: 1 Mult.: 1		Through Hole	PDIP-28	Serial, SPI	16 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders General-Purpose Outp ut Expander A 595-L A 595-LM8335TLX/NOPB LM8335TLE/NOPB Texas Instruments 1: £3.73 170In Stock	Mfr. Part No. LM8335TLE/NOPB Mouser Part No 595-LM8335TLE/NOPB	Texas Instruments	Interface - I/O Expanders General-Purpose Outp ut Expander A 595-L A 595-LM8335TLX/NOPB	Datasheet	170In Stock	Cut Tape £3.73 £2.85 £2.62 £2.37 Reel £2.25 View £2.17 £2.09 £2.07 MouseReel Available	Min.: 1 Mult.: 1 : 250	LM8335	SMD/SMT	DSBGA-16	I2C, Serial	8 I/O	With Interrupt	1.8 V	3.3 V	26 MHz	- 30 C	+ 85 C	Reel, Cut Tape, MouseReel	8 kV
Interface - I/O Expanders Rem 8B I2C & Lo-Pwr I/O Expander A 595-P A 595-PCA9534DBR PCA9534DB Texas Instruments 1: £3.78 109In Stock	Mfr. Part No. PCA9534DB Mouser Part No 595-PCA9534DB	Texas Instruments	Interface - I/O Expanders Rem 8B I2C & Lo-Pwr I/O Expander A 595-P A 595-PCA9534DBR	Datasheet	109In Stock	£3.78 £2.88 £2.44 £2.34 View £2.32 £2.31 £2.23 £2.21	Min.: 1 Mult.: 1	PCA9534	SMD/SMT	SSOP-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 16-Bit I2C & SMBus L o-Pwr I/O Expander A 595-PCA9539DBR PCA9539DB Texas Instruments 1: £3.69 70In Stock	Mfr. Part No. PCA9539DB Mouser Part No 595-PCA9539DB	Texas Instruments	Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander A 595-PCA9539DBR	Datasheet	70In Stock	£3.69 £2.82 £2.60 £2.34 View £2.23 £2.17 £2.16	Min.: 1 Mult.: 1	PCA9539	SMD/SMT	SSOP-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 16-Bit I2C & SMBus L o-Pwr I/O Expander A 595-PCA9539DWR PCA9539DW Texas Instruments 1: £3.60 270In Stock	Mfr. Part No. PCA9539DW Mouser Part No 595-PCA9539DW	Texas Instruments	Interface - I/O Expanders 16-Bit I2C & SMBus L o-Pwr I/O Expander A 595-PCA9539DWR	Datasheet	270In Stock	£3.60 £2.80 £2.37 £2.24 View £2.12 £2.05 £2.02	Min.: 1 Mult.: 1	PCA9539	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 Rem 8B I2C & SMBus I /O Expander PCA9554ADGVR Texas Instruments 1: £2.51 69In Stock	Mfr. Part No. PCA9554ADGVR Mouser Part No 595-PCA9554ADGVR	Texas Instruments	Interface - I/O Expanders Rem 8B I2C & SMBus I /O Expander Learn More about Texas Instruments ti pca95xx	Datasheet	69In Stock	Cut Tape £2.51 £1.88 £1.71 £1.54 View Reel £1.21 £1.46 £1.44 £1.21 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCA9554A	SMD/SMT	TVSOP-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 A A 595-PCA9555DW PCA9555DWR Texas Instruments 1: £3.00 193In Stock 4,000Expected 03/04/2028	Mfr. Part No. PCA9555DWR Mouser Part No 595-PCA9555DWR	Texas Instruments	Interface - I/O Expanders Remote 16-Bit I2C & SMBus I/O Expander A A 595-PCA9555DW	Datasheet	193In Stock 4,000Expected 03/04/2028	Cut Tape £3.00 £2.28 £2.09 £1.89 Reel £1.58 View £1.80 £1.78 £1.53 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	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	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 8bit I/O Expndr A 59 5-PCF8574APW A 595- A 595-PCF8574APW PCF8574APWR Texas Instruments 1: £1.22 183In Stock 22,000On Order	Mfr. Part No. PCF8574APWR Mouser Part No 595-PCF8574APWR	Texas Instruments	Interface - I/O Expanders 8bit I/O Expndr A 59 5-PCF8574APW A 595- A 595-PCF8574APW	Datasheet	183In Stock 22,000On Order On Order Ship Dates Mfr. No: PCF8574APWR Stock: 183 Can Dispatch Immediately On Order: 10,000 Expected 25/12/2026 12,000 Expected 11/02/2027 Factory Lead Time: 12 Weeks	Cut Tape £1.22 £0.899 £0.818 £0.721 Reel £0.583 View £0.649 £0.623 £0.618 £0.575 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCF8574A	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 8-Bit I/O Exp ander for I2C-Bus PCF8574ARGYR Texas Instruments 1: £1.92 761In Stock	Mfr. Part No. PCF8574ARGYR Mouser Part No 595-PCF8574ARGYR	Texas Instruments	Interface - I/O Expanders Remote 8-Bit I/O Exp ander for I2C-Bus	Datasheet	761In Stock	Cut Tape £1.92 £1.43 £1.32 £1.17 Reel £0.986 View £1.11 £1.10 £0.96 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	PCF8574A	SMD/SMT	VQFN-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-PCF8575CPW PCF8575CPWR Texas Instruments 1: £5.30 94In Stock	Mfr. Part No. PCF8575CPWR Mouser Part No 595-PCF8575CPWR	Texas Instruments	Interface - I/O Expanders Remote 16-Bit I2C & SMBus I/O Expander A A 595-PCF8575CPW	Datasheet	94In Stock	Cut Tape £5.30 £4.06 £3.75 £3.41 View Reel £3.20 £3.26 £3.20 £3.20 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCF8575C	SMD/SMT	TSSOP-24	I2C, Serial, SMBus	16 I/O	With Interrupt	4.5 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 A A 595-PCF8575DW PCF8575DWR Texas Instruments 1: £2.35 307In Stock 4,000Expected 24/12/2026	Mfr. Part No. PCF8575DWR Mouser Part No 595-PCF8575DWR	Texas Instruments	Interface - I/O Expanders Remote 16-Bit I2C & SMBus I/O Expander A A 595-PCF8575DW	Datasheet	307In Stock 4,000Expected 24/12/2026	Cut Tape £2.35 £1.76 £1.62 £1.46 Reel £1.25 View £1.37 £1.35 £1.32 £1.22 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCF8575	SMD/SMT	SOIC-24	I2C, Serial, SMBus	16 I/O	With Interrupt	2.5 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders Remote 8-bit I2C SMB us I/O Expander TCA9554DBQR Texas Instruments 1: £1.48 1,248In Stock 2,500Expected 19/11/2026	Mfr. Part No. TCA9554DBQR Mouser Part No 595-TCA9554DBQR	Texas Instruments	Interface - I/O Expanders Remote 8-bit I2C SMB us I/O Expander Learn More about Texas Instruments ti tca9554 tca9554a expander	Datasheet	1,248In Stock 2,500Expected 19/11/2026	Cut Tape £1.48 £1.09 £0.995 £0.882 Reel £0.747 View £0.834 £0.803 £0.732 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	TCA9554	SMD/SMT	SSOP-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 11Kb 40 IO EXPANDER W/EEPROM CY8C9540A-24PVXI Infineon Technologies 1: £9.67 107In Stock	Mfr. Part No. CY8C9540A-24PVXI Mouser Part No 727-CY8C9540A-24PVXI	Infineon Technologies	Interface - I/O Expanders 11Kb 40 IO EXPANDER W/EEPROM Learn More about Infineon Technologies cypress psoc	Datasheet	107In Stock	£9.67 £8.08 £6.81 £5.91 View £5.55 £5.42	Min.: 1 Mult.: 1	CY8C95xx	SMD/SMT	SSOP-48	I2C, Serial	40 I/O	With Interrupt	3 V	5.25 V	12 MHz	- 40 C	+ 85 C	Tube	2 kV
Interface - I/O Expanders 19 Keypad Decoder and I/O Expansion ADP5589ACPZ-00-R7 Analog Devices 1: £2.80 4,338In Stock	Mfr. Part No. ADP5589ACPZ-00-R7 Mouser Part No 584-ADP5589ACPZ-00R7	Analog Devices	Interface - I/O Expanders 19 Keypad Decoder and I/O Expansion	Datasheet	4,338In Stock	Cut Tape £2.80 £2.12 £1.94 £1.75 Reel £1.49 View £1.65 £1.63 £1.54 £1.48 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	ADP5589	SMD/SMT	LFCSP-24	I2C, Serial	19 I/O	With Interrupt	1.8 V	3 V	1 MHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders 2-Wire-Interfaced, 2.5V to 5.5V, 20-Port MAX7300ATL+T Analog Devices / Maxim Integrated 1: £13.97 1,131In Stock	Mfr. Part No. MAX7300ATL+T Mouser Part No 700-MAX7300ATL+T	Analog Devices / Maxim Integrated	Interface - I/O Expanders 2-Wire-Interfaced, 2.5V to 5.5V, 20-Port	Datasheet	1,131In Stock	Cut Tape £13.97 £11.10 £10.38 £9.60 View £9.18 £9.08 £9.07 £8.60 MouseReel Available	Min.: 1 Mult.: 1	MAX7300	SMD/SMT	TQFN-40	I2C, Serial	20 I/O	With Interrupt	2.5 V	5.5 V	400 kHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port MAX7301AAI+ Analog Devices / Maxim Integrated 1: £10.13 655In Stock	Mfr. Part No. MAX7301AAI+ Mouser Part No 700-MAX7301AAI	Analog Devices / Maxim Integrated	Interface - I/O Expanders 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port Learn More about Analog Devices / Maxim Integrated maxim programmable logic controllers	Datasheet	655In Stock	£10.13 £7.93 £7.22 £6.78 View £6.70 £6.35 £6.18 Quote	Min.: 1 Mult.: 1	MAX7301	SMD/SMT	SSOP-28	Serial, SPI	20 I/O	With Interrupt	2.5 V	5.5 V	26 MHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port MAX7301AAX+ Analog Devices / Maxim Integrated 1: £12.54 852In Stock	Mfr. Part No. MAX7301AAX+ Mouser Part No 700-MAX7301AAX	Analog Devices / Maxim Integrated	Interface - I/O Expanders 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port Learn More about Analog Devices / Maxim Integrated maxim programmable logic controllers	Datasheet	852In Stock	£12.54 £9.94 £8.97 £8.56 View £8.17 £8.02 Quote	Min.: 1 Mult.: 1	MAX7301	SMD/SMT	SSOP-36	Serial, SPI	28 I/O	With Interrupt	2.5 V	5.5 V	26 MHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port MAX7301AAX+T Analog Devices / Maxim Integrated 1: £12.38 433In Stock	Mfr. Part No. MAX7301AAX+T Mouser Part No 700-MAX7301AAXT	Analog Devices / Maxim Integrated	Interface - I/O Expanders 4-Wire-Interfaced, 2.5V to 5.5V, 20-Port Learn More about Analog Devices / Maxim Integrated maxim programmable logic controllers	Datasheet	433In Stock	Cut Tape £12.38 £9.81 £9.17 £8.46 View £8.37 £8.21 £7.86 MouseReel Available	Min.: 1 Mult.: 1	MAX7301	SMD/SMT	SSOP-36	Serial, SPI	28 I/O	With Interrupt	2.5 V	5.5 V	26 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders 2-Wire-Interfaced 16-Bit I/O Port Expand MAX7311ATG+ Analog Devices / Maxim Integrated 1: £8.56 399In Stock	Mfr. Part No. MAX7311ATG+ Mouser Part No 700-MAX7311ATG	Analog Devices / Maxim Integrated	Interface - I/O Expanders 2-Wire-Interfaced 16-Bit I/O Port Expand	Datasheet	399In Stock	£8.56 £6.68 £6.22 £5.69 View £5.40 £5.30 £5.18 Quote	Min.: 1 Mult.: 1	MAX7311	SMD/SMT	TQFN-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 2-Wire-Interfaced 16-Bit I/O Port Expand MAX7311AUG+ Analog Devices / Maxim Integrated 1: £8.66 1,124In Stock	Mfr. Part No. MAX7311AUG+ Mouser Part No 700-MAX7311AUG	Analog Devices / Maxim Integrated	Interface - I/O Expanders 2-Wire-Interfaced 16-Bit I/O Port Expand	Datasheet	1,124In Stock	£8.66 £7.25 £6.36 £6.12 View £5.88 £5.75 £5.59 Quote	Min.: 1 Mult.: 1	MAX7311	SMD/SMT	TSSOP-24	I2C, Serial, SMBus	16 I/O	With Interrupt	2.5 V	5.5 V	400 kHz	- 40 C	+ 125 C	Tube	Without ESD Protection