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Interface - I/O Expanders

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (IDR) 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: Rp38.710,06 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 Rp38.710,06 Rp28.986,68 Rp26.234,78 Rp24.400,18 View Reel Rp20.914,44 Rp22.932,50 Rp22.198,66 Rp21.648,28 Rp20.914,44 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: Rp42.195,80 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 Rp42.195,80 Rp31.738,58 Rp29.353,60 Rp28.436,30 View Reel Rp24.216,72 Rp26.968,62 Rp26.234,78 Rp24.216,72 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: Rp37.425,84 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 Rp37.425,84 Rp27.702,46 Rp25.317,48 Rp22.565,58 View Reel Rp18.896,38 Rp21.281,36 Rp20.547,52 Rp18.896,38 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: Rp64.577,92 37Expected 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	37Expected 29/10/2026	Cut Tape Rp64.577,92 Rp48.616,90 Rp44.580,78 Rp40.177,74 View Reel Rp35.224,32 Rp38.159,68 Rp37.792,76 Rp36.692,00 Rp35.224,32 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: Rp64.577,92 8.113In 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	8.113In Stock	Cut Tape Rp64.577,92 Rp48.616,90 Rp44.580,78 Rp40.177,74 View Reel Rp35.224,32 Rp38.159,68 Rp37.792,76 Rp36.692,00 Rp35.224,32 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: Rp761.909,38 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	Rp761.909,38 Rp628.900,88 Rp591.108,12 Rp556.801,10 View Rp522.127,16 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: Rp28.986,68 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 Rp28.986,68 Rp21.097,90 Rp19.263,30 Rp16.951,70 Reel Rp13.777,85 View Rp15.924,33 Rp15.318,91 Rp15.135,45 Rp13.484,31 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: Rp32.839,34 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 Rp32.839,34 Rp24.033,26 Rp21.831,74 Rp19.446,76 Reel Rp15.832,60 View Rp18.217,58 Rp17.538,78 Rp17.447,05 Rp15.465,68	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: Rp27.335,54 8.109In 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	8.109In Stock	Rp27.335,54 Rp22.932,50 Rp20.730,98	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: Rp28.252,84 2.958In 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	2.958In Stock	Rp28.252,84 Rp23.482,88 Rp23.299,42	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: Rp25.134,02 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	Rp25.134,02 Rp20.914,44 Rp19.263,30	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: Rp27.335,54 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	Rp27.335,54 Rp22.932,50 Rp20.730,98	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: Rp27.335,54 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 Rp27.335,54 Rp22.932,50 Reel Rp20.730,98 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: Rp27.335,54 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 Rp27.335,54 Rp22.932,50 Reel Rp20.730,98 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: Rp29.903,98 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 Rp29.903,98 Rp24.950,56 Rp24.583,64 Rp24.400,18 Rp24.216,72 Reel Rp23.482,88 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: Rp29.903,98 1.997In 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	1.997In Stock	Cut Tape Rp29.903,98 Rp25.134,02 Reel Rp22.382,12 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: Rp37.425,84 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	Rp37.425,84 Rp31.004,74 Rp28.252,84	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: Rp41.095,04 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	Rp41.095,04 Rp34.123,56 Rp31.004,74 Rp30.821,28 View Rp30.454,36 Rp30.270,90	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: Rp37.425,84 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 Rp37.425,84 Rp31.004,74 Reel Rp28.252,84 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: Rp41.095,04 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 Rp41.095,04 Rp34.857,40 Reel Rp31.004,74 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: Rp30.270,90 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	Rp30.270,90 Rp25.134,02 Rp24.950,56	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: Rp29.537,06 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	Rp29.537,06 Rp24.767,10 Rp24.033,26	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: Rp28.436,30 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	Rp28.436,30 Rp23.666,34 Rp21.281,36	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: Rp30.270,90 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 Rp30.270,90 Rp29.903,98 Reel Rp24.950,56 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: Rp28.436,30 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 Rp28.436,30 Rp23.666,34 Reel Rp21.281,36 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