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Interface - I/O Expanders

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) 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 8-bit I2C-bus/SMBus I/O Expander with Interrupt, Reset and Agile I/O in TSSOP16 package PCAL9538APWJ NXP Semiconductors 1: €1.81 18,497In Stock	Mfr. Part No. PCAL9538APWJ Mouser Part No 771-PCAL9538APWJ	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with Interrupt, Reset and Agile I/O in TSSOP16 package	Datasheet	18,497In Stock	Cut Tape €1.81 €1.36 €1.23 €1.14 View Reel €0.98 €1.08 €1.04 €1.01 €0.98 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	PCAL9538A	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 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Reset and Agile I/O in HWQFN24 package PCAL9539AHF,128 NXP Semiconductors 1: €1.98 24,959In Stock	Mfr. Part No. PCAL9539AHF,128 Mouser Part No 771-PCAL9539AHF,128	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Reset and Agile I/O in HWQFN24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	24,959In Stock	Cut Tape €1.98 €1.49 €1.38 €1.33 View Reel €1.14 €1.26 €1.23 €1.14 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	PCAL9539A	SMD/SMT	HWQFN-24	I2C, Serial, SMBus	16 I/O	With Interrupt	1.65 V	5.5 V	100 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Agile I/O in HWQFN24 package PCAL9555AHF,128 NXP Semiconductors 1: €1.75 14,972In Stock 18,000Expected 02/11/2026	Mfr. Part No. PCAL9555AHF,128 Mouser Part No 771-PCAL9555AHF,128	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt and Agile I/O in HWQFN24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	14,972In Stock 18,000Expected 02/11/2026	Cut Tape €1.75 €1.30 €1.19 €1.06 View Reel €0.886 €0.998 €0.963 €0.886 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	PCAL9555A	SMD/SMT	HWQFN-24	I2C, Serial	16 I/O	With Interrupt	1.65 V	5.5 V	100 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 16 CHAN LOW VOLT I2C GPIO +PWM SX1509BIULTRT Semtech 1: €3.03 7,037Expected 29/10/2026	Mfr. Part No. SX1509BIULTRT Mouser Part No 947-SX1509BIULTRT	Semtech	Interface - I/O Expanders 16 CHAN LOW VOLT I2C GPIO +PWM Learn More about Semtech sx1508b sx1509b gpio	Datasheet	7,037Expected 29/10/2026	Cut Tape €3.03 €2.28 €2.09 €1.88 View Reel €1.65 €1.79 €1.77 €1.72 €1.65 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SX1509	SMD/SMT	QFN-28	I2C, Serial	16 I/O	With Interrupt	1.2 V	3.6 V	2 MHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 16 CHAN LOW VOLT GPIO + PWM SX1509QBIULTRT Semtech 1: €3.03 8,368In Stock	Mfr. Part No. SX1509QBIULTRT Mouser Part No 947-SX1509QBIULTRT	Semtech	Interface - I/O Expanders 16 CHAN LOW VOLT GPIO + PWM Learn More about Semtech sx1508b sx1509b gpio	Datasheet	8,368In Stock	Cut Tape €3.03 €2.28 €2.09 €1.88 View Reel €1.65 €1.79 €1.77 €1.72 €1.65 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	SX1509	SMD/SMT	QFN-28	I2C, Serial	16 I/O	With Interrupt	1.2 V	3.6 V	2 MHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders PERI PRG-I/O 5V 8MHZ 44PLCC IND IS82C55AZ Renesas / Intersil 1: €35.72 641In Stock	Mfr. Part No. IS82C55AZ Mouser Part No 968-IS82C55AZ	Renesas / Intersil	Interface - I/O Expanders PERI PRG-I/O 5V 8MHZ 44PLCC IND	Datasheet	641In Stock	€35.72 €29.48 €27.71 €26.10 View €24.48 Quote	Min.: 1 Mult.: 1	82C55A	SMD/SMT	PLCC-44	Parallel	24 I/O	With Interrupt	4.5 V	5.5 V	8 MHz	- 40 C	+ 85 C	Tube	1 kV
Interface - I/O Expanders ULTRA LOW VOLTAGE AG ILE I/O EXPANDER TCAL6408RSVR Texas Instruments 1: €1.36 191In Stock 21,000Expected 03/12/2026	Mfr. Part No. TCAL6408RSVR Mouser Part No 595-TCAL6408RSVR	Texas Instruments	Interface - I/O Expanders ULTRA LOW VOLTAGE AG ILE I/O EXPANDER Learn More about Texas Instruments ti tcal6408 i2c bus smbus io expander	Datasheet	191In Stock 21,000Expected 03/12/2026	Cut Tape €1.36 €0.989 €0.903 €0.795 Reel €0.646 View €0.746 €0.718 €0.71 €0.632 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	TCAL6408	SMD/SMT	UQFN-16	I2C, Serial, SMBus	9 I/O	With Interrupt	1.08 V	3.6 V	1 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel
Interface - I/O Expanders NCA9539BY/SOT8041/HWQFN24 NCA9539BYHP Nexperia 1: €1.54 350In Stock	Mfr. Part No. NCA9539BYHP Mouser Part No 771-NCA9539BYHP	Nexperia	Interface - I/O Expanders NCA9539BY/SOT8041/HWQFN24 Learn More about Nexperia nca9535 nca9539 nca9555 gipo expanders	Datasheet	350In Stock	Cut Tape €1.54 €1.13 €1.02 €0.912 Reel €0.742 View €0.854 €0.822 €0.818 €0.725	Min.: 1 Mult.: 1 : 3,000		SMD/SMT	HWQFN-24									Reel, Cut Tape
Interface - I/O Expanders 8bit Input/Output Exp I2C interface MCP23008-E/ML Microchip Technology 1: €1.28 8,121In Stock	Mfr. Part No. MCP23008-E/ML Mouser Part No 579-MCP23008-E/ML	Microchip Technology	Interface - I/O Expanders 8bit Input/Output Exp I2C interface	Datasheet	8,121In Stock	€1.28 €1.08 €0.972	Min.: 1 Mult.: 1		SMD/SMT	QFN-20	I2C, Serial	8 I/O	With Interrupt	1.8 V	5.5 V	1.7 MHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders In/Out I2C int MCP23008-E/P Microchip Technology 1: €1.32 2,933In Stock	Mfr. Part No. MCP23008-E/P Mouser Part No 579-MCP23008-E/P	Microchip Technology	Interface - I/O Expanders In/Out I2C int	Datasheet	2,933In Stock	€1.32 €1.11	Min.: 1 Mult.: 1		Through Hole	PDIP-18	I2C, Serial	8 I/O	With Interrupt	1.8 V	5.5 V	1.7 MHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders In/Out I2C int MCP23008-E/SO Microchip Technology 1: €1.18 6,367In Stock	Mfr. Part No. MCP23008-E/SO Mouser Part No 579-MCP23008-E/SO	Microchip Technology	Interface - I/O Expanders In/Out I2C int	Datasheet	6,367In Stock	€1.18 €0.98 €0.903	Min.: 1 Mult.: 1		SMD/SMT	SOIC-18	I2C, Serial	8 I/O	With Interrupt	1.8 V	5.5 V	1.7 MHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders In/Out I2C int MCP23008-E/SS Microchip Technology 1: €1.28 8,412In Stock	Mfr. Part No. MCP23008-E/SS Mouser Part No 579-MCP23008-E/SS	Microchip Technology	Interface - I/O Expanders In/Out I2C int	Datasheet	8,412In Stock	€1.28 €1.08 €0.972	Min.: 1 Mult.: 1		SMD/SMT	SSOP-20	I2C, Serial	8 I/O	With Interrupt	1.8 V	5.5 V	1.7 MHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders 8bit Input/Output Exp I2C interface MCP23008T-E/ML Microchip Technology 1: €1.28 10,395In Stock	Mfr. Part No. MCP23008T-E/ML Mouser Part No 579-MCP23008T-E/ML	Microchip Technology	Interface - I/O Expanders 8bit Input/Output Exp I2C interface	Datasheet	10,395In Stock	Cut Tape €1.28 €1.08 Reel €0.972 MouseReel Available	Min.: 1 Mult.: 1 : 3,300		SMD/SMT	QFN-20	I2C, Serial	8 I/O	With Interrupt	1.8 V	5.5 V	1.7 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders In/Out I2C int MCP23008T-E/SS Microchip Technology 1: €1.28 11,843In Stock	Mfr. Part No. MCP23008T-E/SS Mouser Part No 579-MCP23008T-E/SS	Microchip Technology	Interface - I/O Expanders In/Out I2C int	Datasheet	11,843In Stock	Cut Tape €1.28 €1.08 Reel €0.972 MouseReel Available	Min.: 1 Mult.: 1 : 1,600		SMD/SMT	SSOP-20	I2C, Serial	8 I/O	With Interrupt	1.8 V	5.5 V	1.7 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders 8B I/O Expander SPI interface MCP23009T-E/MG Microchip Technology 1: €1.40 1,299In Stock 6,600On Order	Mfr. Part No. MCP23009T-E/MG Mouser Part No 579-MCP23009T-E/MG	Microchip Technology	Interface - I/O Expanders 8B I/O Expander SPI interface	Datasheet	1,299In Stock 6,600On Order	Cut Tape €1.40 €1.17 €1.15 €1.14 Reel €1.10 MouseReel Available	Min.: 1 Mult.: 1 : 3,300		SMD/SMT	QFN-16	I2C, Serial	8 I/O	With Interrupt	1.8 V	5.5 V	3.4 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	4 kV
Interface - I/O Expanders 8-bit I/O Expander I2C interface MCP23009T-E/SS Microchip Technology 1: €1.40 2,097In Stock	Mfr. Part No. MCP23009T-E/SS Mouser Part No 579-MCP23009T-E/SS	Microchip Technology	Interface - I/O Expanders 8-bit I/O Expander I2C interface	Datasheet	2,097In Stock	Cut Tape €1.40 €1.18 Reel €1.05 MouseReel Available	Min.: 1 Mult.: 1 : 1,600		SMD/SMT	SSOP-20	I2C, Serial	8 I/O	With Interrupt	1.8 V	5.5 V	3.4 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	4 kV
Interface - I/O Expanders 16B I/O Expander I2C interface MCP23018-E/MJ Microchip Technology 1: €1.75 2,883In Stock	Mfr. Part No. MCP23018-E/MJ Mouser Part No 579-MCP23018-E/MJ	Microchip Technology	Interface - I/O Expanders 16B I/O Expander I2C interface	Datasheet	2,883In Stock	€1.75 €1.45 €1.32	Min.: 1 Mult.: 1		SMD/SMT	QFN-24	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 16-bit I/O Expander I2C interface MCP23018-E/SS Microchip Technology 1: €1.93 3,090In Stock	Mfr. Part No. MCP23018-E/SS Mouser Part No 579-MCP23018-E/SS	Microchip Technology	Interface - I/O Expanders 16-bit I/O Expander I2C interface	Datasheet	3,090In Stock	€1.93 €1.60 €1.45 €1.44 View €1.43 €1.42	Min.: 1 Mult.: 1		SMD/SMT	SSOP-24	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 16B I/O Expander I2C interface MCP23018T-E/MJ Microchip Technology 1: €1.75 4,809In Stock	Mfr. Part No. MCP23018T-E/MJ Mouser Part No 579-MCP23018T-E/MJ	Microchip Technology	Interface - I/O Expanders 16B I/O Expander I2C interface	Datasheet	4,809In Stock	Cut Tape €1.75 €1.45 Reel €1.32 MouseReel Available	Min.: 1 Mult.: 1 : 3,300		SMD/SMT	QFN-24	I2C, Serial	16 I/O	With Interrupt	1.8 V	5.5 V	3.4 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders 16-bit I/O Expander I2C interface MCP23018T-E/SS Microchip Technology 1: €1.93 4,596In Stock	Mfr. Part No. MCP23018T-E/SS Mouser Part No 579-MCP23018T-E/SS	Microchip Technology	Interface - I/O Expanders 16-bit I/O Expander I2C interface	Datasheet	4,596In Stock	Cut Tape €1.93 €1.63 Reel €1.45 MouseReel Available	Min.: 1 Mult.: 1 : 2,100		SMD/SMT	SSOP-24	I2C, Serial	16 I/O	With Interrupt	1.8 V	5.5 V	3.4 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders 8bit Input/Output Exp SPI interface MCP23S08-E/ML Microchip Technology 1: €1.42 5,597In Stock	Mfr. Part No. MCP23S08-E/ML Mouser Part No 579-MCP23S08-E/ML	Microchip Technology	Interface - I/O Expanders 8bit Input/Output Exp SPI interface	Datasheet	5,597In Stock	€1.42 €1.19	Min.: 1 Mult.: 1		SMD/SMT	QFN-20	Serial, SPI	8 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders In/Out SPI int MCP23S08-E/P Microchip Technology 1: €1.38 1,025In Stock	Mfr. Part No. MCP23S08-E/P Mouser Part No 579-MCP23S08-E/P	Microchip Technology	Interface - I/O Expanders In/Out SPI int	Datasheet	1,025In Stock	€1.38 €1.16 €1.14	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	Without ESD Protection
Interface - I/O Expanders In/Out SPI int MCP23S08-E/SS Microchip Technology 1: €1.33 2,862In Stock	Mfr. Part No. MCP23S08-E/SS Mouser Part No 579-MCP23S08-E/SS	Microchip Technology	Interface - I/O Expanders In/Out SPI int	Datasheet	2,862In Stock	€1.33 €1.11 €0.998	Min.: 1 Mult.: 1		SMD/SMT	SSOP-20	Serial, SPI	8 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	Tube	Without ESD Protection
Interface - I/O Expanders 8bit Input/Output Exp SPI interface MCP23S08T-E/ML Microchip Technology 1: €1.42 2,866In Stock	Mfr. Part No. MCP23S08T-E/ML Mouser Part No 579-MCP23S08T-E/ML	Microchip Technology	Interface - I/O Expanders 8bit Input/Output Exp SPI interface	Datasheet	2,866In Stock	Cut Tape €1.42 €1.40 Reel €1.19 MouseReel Available	Min.: 1 Mult.: 1 : 3,300		SMD/SMT	QFN-20	Serial, SPI	8 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders In/Out SPI int MCP23S08T-E/SS Microchip Technology 1: €1.33 8,184In Stock	Mfr. Part No. MCP23S08T-E/SS Mouser Part No 579-MCP23S08T-E/SS	Microchip Technology	Interface - I/O Expanders In/Out SPI int	Datasheet	8,184In Stock	Cut Tape €1.33 €1.11 Reel €0.998 MouseReel Available	Min.: 1 Mult.: 1 : 1,600		SMD/SMT	SSOP-20	Serial, SPI	8 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	Without ESD Protection