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Interface IC's Interface - I/O Expanders

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) 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 2-kbit EEPROM and Quasi feature in HVQFN16 package PCA9500BS,118 NXP Semiconductors 1: $3.93 8,000In Stock	Mfr. Part No. PCA9500BS,118 Mouser Part No 771-PCA9500BS-T	NXP Semiconductors	Interface - I/O Expanders 8-bit I2C-bus/SMBus I/O Expander with 2-kbit EEPROM and Quasi feature in HVQFN16 package	Datasheet	8,000In Stock	Cut Tape $3.93 $2.93 $2.67 $2.40 View Reel $2.01 $2.27 $2.22 $2.11 $2.05 $2.01 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	PCA9500	SMD/SMT	HVQFN-16	I2C, Serial, SMBus	8 I/O	Without Interrupt	2.5 V	3.6 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel
Interface - I/O Expanders 14-bit SPI Level Translating I/O Expander with Agile I/O in HVQFN24 package PCAL9714HNMP NXP Semiconductors 1: $1.49 9,577In Stock	Mfr. Part No. PCAL9714HNMP Mouser Part No 771-PCAL9714HNMP	NXP Semiconductors	Interface - I/O Expanders 14-bit SPI Level Translating I/O Expander with Agile I/O in HVQFN24 package Learn More about NXP Semiconductors nxp pcal9714 expanders	Datasheet	9,577In Stock	Cut Tape $1.49 $1.09 $0.986 $0.876 View Reel $0.716 $0.822 $0.79 $0.782 $0.754 $0.716	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	+ 85 C	Reel, Cut Tape	2 kV
Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt in HWQFN24 package PCA9555AHF,128 NXP Semiconductors 1: $1.94 45,123In Stock	Mfr. Part No. PCA9555AHF,128 Mouser Part No 771-PCA9555AHF,128	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus I/O Expander with Interrupt in HWQFN24 package Learn More about NXP Semiconductors nxp gpioexpanders	Datasheet	45,123In Stock	Cut Tape $1.94 $1.52 $1.35 $1.22 View Reel $1.04 $1.15 $1.12 $1.10 $1.09 $1.04 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	PCA9555A	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 8bit I/O Expndr PCF8574N Texas Instruments 1: $2.98 10,301In Stock	Mfr. Part No. PCF8574N Mouser Part No 595-PCF8574N	Texas Instruments	Interface - I/O Expanders 8bit I/O Expndr	Datasheet	10,301In Stock	$2.98 $2.23 $2.00 $1.79 View $1.73 $1.67 $1.60 $1.56 $1.54	Min.: 1 Mult.: 1	PCF8574	Through Hole	PDIP-16	I2C, Serial	8 I/O	With Interrupt	2.5 V	6 V	100 kHz	- 40 C	+ 85 C	Tube	1 kV
Interface - I/O Expanders Interface IO Expander PI4IOE5V6416ZDEX Diodes Incorporated 1: $1.60 2,418In Stock 84,000On Order	Mfr. Part No. PI4IOE5V6416ZDEX Mouser Part No 729-PI4IOE5V6416ZDEX	Diodes Incorporated	Interface - I/O Expanders Interface IO Expander Learn More about Diodes Incorporated diodes pi4ioe5v6416 io expander	Datasheet	2,418In Stock 84,000On Order On Order Ship Dates Mfr. No: PI4IOE5V6416ZDEX Stock: 2,418 Can Dispatch Immediately On Order: 21,000 Expected 2027/05/26 28,000 Expected 2028/03/06 35,000 Expected 2028/03/31 Factory Lead Time: 48 Weeks	Cut Tape $1.60 $1.17 $0.993 $0.94 View Reel $0.668 $0.772 $0.741 $0.708 $0.668 MouseReel Available	Min.: 1 Mult.: 1 Max.: 3,500 : 3,500	PIO4IO	SMD/SMT	TQFN-24	I2C, Serial	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 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Low Power version of PCA9555 in HVQFN24 package PCA9535BS,118 NXP Semiconductors 1: $2.86 37,313In Stock 24,000Expected 2026/11/04	Mfr. Part No. PCA9535BS,118 Mouser Part No 771-PCA9535BS-T	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Low Power version of PCA9555 in HVQFN24 package	Datasheet	37,313In Stock 24,000Expected 2026/11/04	Cut Tape $2.86 $2.14 $1.95 $1.76 View Reel $1.47 $1.66 $1.62 $1.54 $1.49 $1.47 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	PCA9535	SMD/SMT	HVQFN-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 Interface IO Expander TSSOP-24 T&R 3K PI4IOE5V6416AQ2LEX Diodes Incorporated 1: $2.54 2,901In Stock	Mfr. Part No. PI4IOE5V6416AQ2LEX Mouser Part No 621-PI4IOE5V6416AQ2L	Diodes Incorporated	Interface - I/O Expanders Interface IO Expander TSSOP-24 T&R 3K	Datasheet	2,901In Stock	Cut Tape $2.54 $1.88 $1.71 $1.54 View Reel $1.30 $1.45 $1.40 $1.35 $1.30	Min.: 1 Mult.: 1 : 3,000		SMD/SMT	TSSOP-24									Reel, Cut Tape
Interface - I/O Expanders 16 CHAN LOW VOLT GPIO + PWM SX1509QBIULTRT Semtech 1: $3.52 8,100In 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	8,100In Stock	Cut Tape $3.52 $2.65 $2.43 $2.19 View Reel $1.92 $2.08 $2.06 $2.00 $1.92 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 8-bit translating I& sup2;C-bus/SMBus I/ TCAL6408PWR Texas Instruments 1: $1.54 3,216In Stock	Mfr. Part No. TCAL6408PWR Mouser Part No 595-TCAL6408PWR	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	3,216In Stock	Cut Tape $1.54 $1.12 $1.02 $0.899 Reel $0.751 View $0.846 $0.812 $0.804 $0.735 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	TCAL6408	SMD/SMT	TSSOP-16	I2C, Serial, SMBus	8 I/O	With Interrupt	1.08 V	3.6 V	1 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel	With ESD Protection
Interface - I/O Expanders 4-bit I2C-bus/SMBus I/O Expander in TSSOP8 package PCA9536DP,118 NXP Semiconductors 1: $2.04 51,506In Stock	Mfr. Part No. PCA9536DP,118 Mouser Part No 771-PCA9536DP-T	NXP Semiconductors	Interface - I/O Expanders 4-bit I2C-bus/SMBus I/O Expander in TSSOP8 package	Datasheet	51,506In Stock	Cut Tape $2.04 $1.50 $1.37 $1.22 Reel $1.04 View $1.15 $1.11 $1.09 $1.01 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	PCA9536	SMD/SMT	TSSOP-8	I2C, Serial, SMBus	4 I/O	Without Interrupt	2.3 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 8-bit I/O Expander I2C interface MCP23009-E/SO Microchip Technology 1: $1.52 315In Stock	Mfr. Part No. MCP23009-E/SO Mouser Part No 579-MCP23009-E/SO	Microchip Technology	Interface - I/O Expanders 8-bit I/O Expander I2C interface	Datasheet	315In Stock	$1.52 $1.27 $1.15	Min.: 1 Mult.: 1		SMD/SMT	SOIC-18	I2C, Serial	8 I/O	With Interrupt	1.8 V	5.5 V	3.4 MHz	- 40 C	+ 125 C	Tube	4 kV
Interface - I/O Expanders ULTRA LOW VOLTAGE AG ILE I/O EXPANDER TCAL9538PWR Texas Instruments 1: $1.99 2,940In Stock	Mfr. Part No. TCAL9538PWR Mouser Part No 595-TCAL9538PWR	Texas Instruments	Interface - I/O Expanders ULTRA LOW VOLTAGE AG ILE I/O EXPANDER Learn More about Texas Instruments ti tcal9538 expanders	Datasheet	2,940In Stock	$1.99 $1.47 $1.33 $1.19 View $1.12 $1.08 $1.07 $0.966 $0.947	Min.: 1 Mult.: 1	TCAL9538	SMD/SMT	TSSOP-16	I2C, Serial, SMBus	9 I/O	With Interrupt	1.08 V	3.6 V	1 MHz	- 40 C	+ 125 C
Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Low Power version of PCA9555 in TSSOP24 package PCA9535PW,118 NXP Semiconductors 1: $2.86 9,691In Stock 17,500Expected 2027/01/13	Mfr. Part No. PCA9535PW,118 Mouser Part No 771-PCA9535PW-T	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus I/O Expander with Interrupt, Low Power version of PCA9555 in TSSOP24 package	Datasheet	9,691In Stock 17,500Expected 2027/01/13	Cut Tape $2.86 $2.14 $1.95 $1.76 View Reel $1.45 $1.66 $1.62 $1.54 $1.45 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	PCA9535	SMD/SMT	TSSOP-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 Interface IO Expander W-QFN4565-46 T&R 3.5K PI4IOE5V6534Q2ZLWEX Diodes Incorporated 1: $3.72 7,282In Stock 7,000Expected 2027/05/07	Mfr. Part No. PI4IOE5V6534Q2ZLWEX Mouser Part No 621-PI4IO565342ZLWEX	Diodes Incorporated	Interface - I/O Expanders Interface IO Expander W-QFN4565-46 T&R 3.5K Learn More about Diodes Incorporated diodes pi4ioe5v6534q expander	Datasheet	7,282In Stock 7,000Expected 2027/05/07	Cut Tape $3.72 $2.78 $2.48 $2.29 View Reel $1.95 $2.22 $2.20 $2.14 $1.95 MouseReel Available	Min.: 1 Mult.: 1 : 3,500	PI4IOE5V6534Q	SMD/SMT	TQFN-46	I2C, Serial	28 I/O	With Interrupt	1.65 V	5.5 V	100 kHz	- 40 C	+ 105 C	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 40-bit I2C-bus I/O Expander with Interrupt, Output Enable and Reset, Low Power version of PCA9505 in TSSOP56 package PCA9506DGG,518 NXP Semiconductors 1: $8.58 13,645In Stock 8,000Expected 2027/03/22	Mfr. Part No. PCA9506DGG,518 Mouser Part No 771-PCA9506DGG-T	NXP Semiconductors	Interface - I/O Expanders 40-bit I2C-bus I/O Expander with Interrupt, Output Enable and Reset, Low Power version of PCA9505 in TSSOP56 package	Datasheet	13,645In Stock 8,000Expected 2027/03/22	Cut Tape $8.58 $6.63 $6.14 $5.61 View Reel $4.95 $5.33 $5.18 $5.09 $4.95 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCA9506	SMD/SMT	TSSOP-56	I2C, Serial	40 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 8B I2C & Lo- Pwr I/O Expander A 5 A 595-PCA9534DW PCA9534DWR Texas Instruments 1: $3.27 3,534In Stock	Mfr. Part No. PCA9534DWR Mouser Part No 595-PCA9534DWR	Texas Instruments	Interface - I/O Expanders Remote 8B I2C & Lo- Pwr I/O Expander A 5 A 595-PCA9534DW	Datasheet	3,534In Stock	Cut Tape $3.27 $2.45 $2.24 $2.01 Reel $1.72 View $1.90 $1.86 $1.81 $1.60 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCA9534	SMD/SMT	SOIC-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 2-Wire-Interfaced 16-Bit I/O Port Expand MAX7311AWG+ Analog Devices / Maxim Integrated 1: $12.89 306In Stock	Mfr. Part No. MAX7311AWG+ Mouser Part No 700-MAX7311AWG	Analog Devices / Maxim Integrated	Interface - I/O Expanders 2-Wire-Interfaced 16-Bit I/O Port Expand	Datasheet	306In Stock	$12.89 $10.09 $9.40 $8.62 View $8.54 $7.73 $7.57 Quote	Min.: 1 Mult.: 1	MAX7311	SMD/SMT	SOIC-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 Lo-Vltg 24B I2C and SMBus I/O Expander TCA6424ARGJR Texas Instruments 1: $3.21 29,220In Stock	Mfr. Part No. TCA6424ARGJR Mouser Part No 595-TCA6424ARGJR	Texas Instruments	Interface - I/O Expanders Lo-Vltg 24B I2C and SMBus I/O Expander	Datasheet	29,220In Stock	Cut Tape $3.21 $2.40 $2.19 $1.97 Reel $1.67 $1.64 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	TCA6424A	SMD/SMT	UQFN-32	I2C, Serial, SMBus	24 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 40-bit I2C-bus I/O Expander with Interrupt, Output Enable and Reset in TSSOP56 package PCA9505DGGY NXP Semiconductors 1: $7.08 8,271In Stock	Mfr. Part No. PCA9505DGGY Mouser Part No 771-PCA9505DGGY	NXP Semiconductors	Interface - I/O Expanders 40-bit I2C-bus I/O Expander with Interrupt, Output Enable and Reset in TSSOP56 package	Datasheet	8,271In Stock	Cut Tape $7.08 $5.42 $5.01 $4.56 $4.52 Reel $3.84 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCA9505	SMD/SMT	TSSOP-56	I2C, Serial	40 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 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and 4 Address pins in TSSOP28 package PCA9575PW2,118 NXP Semiconductors 1: $3.05 12,929In Stock	Mfr. Part No. PCA9575PW2,118 Mouser Part No 771-PCA9575PW2,118	NXP Semiconductors	Interface - I/O Expanders 16-bit I2C-bus/SMBus Level Translating I/O Expander with Interrupt, Reset and 4 Address pins in TSSOP28 package	Datasheet	12,929In Stock	Cut Tape $3.05 $2.28 $2.09 $1.90 View Reel $1.63 $1.76 $1.73 $1.69 $1.63 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	PCA9575	SMD/SMT	TSSOP-28	I2C, Serial, SMBus	16 I/O	With Interrupt	1.1 V	3.6 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape, MouseReel	6 kV
Interface - I/O Expanders Interface IO Expander TSSOP-24 T&R 3K PI4IOE5V6416RQ2LEX Diodes Incorporated 1: $2.59 3,756In Stock	Mfr. Part No. PI4IOE5V6416RQ2LEX Mouser Part No 621-PI4IOE5V6416RQ2L	Diodes Incorporated	Interface - I/O Expanders Interface IO Expander TSSOP-24 T&R 3K Learn More about Diodes Incorporated diodes pi4ioe5v6416rq io expander	Datasheet	3,756In Stock	Cut Tape $2.59 $1.92 $1.70 $1.56 View Reel $1.33 $1.52 $1.49 $1.47 $1.33 MouseReel Available	Min.: 1 Mult.: 1 : 3,000		SMD/SMT	TSSOP-24				1.65 V	5.5 V		- 40 C	+ 105 C	Reel, Cut Tape, MouseReel
Interface - I/O Expanders Interface IO Expandr PI4IOE5V6416LEX Diodes Incorporated 1: $1.42 6,050In Stock	Mfr. Part No. PI4IOE5V6416LEX Mouser Part No 729-PI4IOE5V6416LEX	Diodes Incorporated	Interface - I/O Expanders Interface IO Expandr Learn More about Diodes Incorporated diodes pi4ioe5v6416 io expander	Datasheet	6,050In Stock	Cut Tape $1.42 $1.06 $0.934 $0.858 $0.833 Reel $0.833	Min.: 1 Mult.: 1 Max.: 410 : 3,000	PIO4IO	SMD/SMT	TSSOP-24	I2C, Serial	16 I/O	With Interrupt	1.65 V	5.5 V	400 kHz	- 40 C	+ 85 C	Reel, Cut Tape	2 kV
Interface - I/O Expanders 8-bit I/O Expander SPI interface MCP23S09-E/P Microchip Technology 1: $1.69 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	$1.69 $1.40 $1.28	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: $1.62 283In Stock 294Expected 2026/10/29	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 2026/10/29	$1.62 $1.35 $1.24	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 16-bit low-voltage I C-bus and SMBus I/O TCAL9539PWR Texas Instruments 1: $2.44 852In Stock 6,000Expected 2027/03/18	Mfr. Part No. TCAL9539PWR Mouser Part No 595-TCAL9539PWR	Texas Instruments	Interface - I/O Expanders 16-bit low-voltage I C-bus and SMBus I/O Learn More about Texas Instruments ti tcal9539 i2c bus smbus io expander	Datasheet	852In Stock 6,000Expected 2027/03/18	Cut Tape $2.44 $1.81 $1.66 $1.48 Reel $1.29 View $1.40 $1.36 $1.33 $1.21 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	TCAL9539	SMD/SMT	TSSOP-24	I2C, Serial	16 I/O	With Interrupt	1.08 V	3.6 V	1 MHz	- 40 C	+ 125 C	Reel, Cut Tape, MouseReel