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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	Qualification	Packaging	ESD Protection
Interface - I/O Expanders Automotive 16-bit lo w voltage I C/SMBus TCAL9539RTWRQ1 Texas Instruments 1: $3.64 9,336In Stock	Mfr. Part No. TCAL9539RTWRQ1 Mouser Part No 595-TCAL9539RTWRQ1	Texas Instruments	Interface - I/O Expanders Automotive 16-bit lo w voltage I C/SMBus Learn More about Texas Instruments ti tcal9539r i2c bus smbus io expander	Datasheet	9,336In Stock	Cut Tape $3.64 $2.71 $2.48 $2.22 View Reel $1.85 $2.10 $2.05 $1.95 $1.89 $1.85 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	AEC-Q100	Reel, Cut Tape, MouseReel
Interface - I/O Expanders 22-bit SPI Level Translating I/O Expander with Agile I/O in HVQFN32 package PCAL9722HNMP NXP Semiconductors 1: $1.89 50,089In Stock	Mfr. Part No. PCAL9722HNMP Mouser Part No 771-PCAL9722HNMP	NXP Semiconductors	Interface - I/O Expanders 22-bit SPI Level Translating I/O Expander with Agile I/O in HVQFN32 package Learn More about NXP Semiconductors nxp pcal9722 expanders	Datasheet	50,089In Stock	Cut Tape $1.89 $1.40 $1.27 $1.13 View Reel $0.938 $1.07 $1.03 $0.959 $0.938 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	PCAL9722	SMD/SMT	HVQFN-32	I2C, Serial		With Interrupt	1.1 V	5.5 V	5 MHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders 22-bit SPI Level Translating I/O Expander with Agile I/O and AEC-Q100 Compliant in HVQFN32 package PCAL9722HN/Q900MP NXP Semiconductors 1: $2.26 45,457In Stock	Mfr. Part No. PCAL9722HN/Q900MP Mouser Part No 771-PCAL9722HNQ900MP	NXP Semiconductors	Interface - I/O Expanders 22-bit SPI Level Translating I/O Expander with Agile I/O and AEC-Q100 Compliant in HVQFN32 package Learn More about NXP Semiconductors nxp pcal9722 expanders	Datasheet	45,457In Stock	Cut Tape $2.26 $1.67 $1.53 $1.36 View Reel $1.13 $1.29 $1.25 $1.13 MouseReel Available	Min.: 1 Mult.: 1 : 6,000	PCAL9722	SMD/SMT	HVQFN-32	Serial, SPI		With Interrupt	1.1 V	5.5 V	5 MHz	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders NCA9555BY-Q100/SOT8041/HWQFN24 NCA9555BY-Q100HP Nexperia 1: $1.86 3,093In Stock	Mfr. Part No. NCA9555BY-Q100HP Mouser Part No 771-NCA9555BY-Q100HP	Nexperia	Interface - I/O Expanders NCA9555BY-Q100/SOT8041/HWQFN24 Learn More about Nexperia nca9535 nca9539 nca9555 gipo expanders	Datasheet	3,093In Stock	Cut Tape $1.86 $1.37 $1.24 $1.11 Reel $0.921 View $1.04 $0.999 $0.995 $0.883 MouseReel Available	Min.: 1 Mult.: 1 : 3,000		SMD/SMT	HWQFN-24	I2C, Serial, SMBus	16 I/O	With Interrupt	1.65 V	5.5 V	100 kHz, 400 kHz	- 40 C	+ 125 C	AEC-Q100	Reel, Cut Tape, MouseReel
Interface - I/O Expanders NCA9555BY/SOT8041/HWQFN24 NCA9555BYHP Nexperia 1: $1.59 2,828In Stock	Mfr. Part No. NCA9555BYHP Mouser Part No 771-NCA9555BYHP	Nexperia	Interface - I/O Expanders NCA9555BY/SOT8041/HWQFN24 Learn More about Nexperia nca9535 nca9539 nca9555 gipo expanders	Datasheet	2,828In Stock	Cut Tape $1.59 $1.17 $1.06 $0.939 Reel $0.786 View $0.883 $0.849 $0.842 $0.767 MouseReel Available	Min.: 1 Mult.: 1 : 3,000		SMD/SMT	HWQFN-24	I2C, Serial, SMBus	16 I/O	With Interrupt	1.65 V	5.5 V	100 kHz, 400 kHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel
Interface - I/O Expanders In/Out I2C int MCP23008T-E/SO Microchip Technology 1: $1.37 26,069In Stock	Mfr. Part No. MCP23008T-E/SO Mouser Part No 579-MCP23008T-E/SO	Microchip Technology	Interface - I/O Expanders In/Out I2C int	Datasheet	26,069In Stock	Cut Tape $1.37 $1.14 Reel $1.05 MouseReel Available	Min.: 1 Mult.: 1 : 1,100		SMD/SMT	SOIC-18	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 SPI int MCP23S08-E/SO Microchip Technology 1: $1.54 22,332In Stock	Mfr. Part No. MCP23S08-E/SO Mouser Part No 579-MCP23S08-E/SO	Microchip Technology	Interface - I/O Expanders In/Out SPI int	Datasheet	22,332In Stock	$1.54 $1.28 $1.27	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	Without ESD Protection
Interface - I/O Expanders 16bit Input/Output Exp SPI interface MCP23S17-E/SO Microchip Technology 1: $1.69 31,970In Stock	Mfr. Part No. MCP23S17-E/SO Mouser Part No 579-MCP23S17-E/SO	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp SPI interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	31,970In Stock	$1.69 $1.40 $1.28	Min.: 1 Mult.: 1	MCP23S17	SMD/SMT	SOIC-28	Serial, SPI	16 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C		Tube	4 kV
Interface - I/O Expanders 16bit Input/Output Exp SPI interface MCP23S17-E/SS Microchip Technology 1: $1.78 13,243In Stock	Mfr. Part No. MCP23S17-E/SS Mouser Part No 579-MCP23S17-E/SS	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp SPI interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	13,243In Stock	$1.78 $1.49 $1.35	Min.: 1 Mult.: 1	MCP23S17	SMD/SMT	SSOP-28	Serial, SPI	16 I/O	With Interrupt	1.8 V	5.5 V	10 MHz	- 40 C	+ 125 C		Tube	4 kV
Interface - I/O Expanders 16bit Input/Output Exp SPI interface MCP23S17T-E/ML Microchip Technology 1: $2.04 37,825In Stock	Mfr. Part No. MCP23S17T-E/ML Mouser Part No 579-MCP23S17T-E/ML	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp SPI interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	37,825In Stock	Cut Tape $2.04 $1.69 Reel $1.54 MouseReel Available	Min.: 1 Mult.: 1 : 1,600	MCP23S17	SMD/SMT	QFN-28	Serial, SPI	16 I/O	With Interrupt	4.5 V	5.5 V	10 MHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	4 kV
Interface - I/O Expanders 16bit Input/Output Exp SPI interface MCP23S17T-E/SS Microchip Technology 1: $1.78 26,906In Stock	Mfr. Part No. MCP23S17T-E/SS Mouser Part No 579-MCP23S17T-E/SS	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp SPI interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	26,906In Stock	Cut Tape $1.78 $1.49 Reel $1.35 MouseReel Available	Min.: 1 Mult.: 1 : 2,100	MCP23S17	SMD/SMT	SSOP-28	Serial, SPI	16 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 2-Wire-Interfaced 16-Bit I/O Port Expand MAX7311AUG+T Analog Devices / Maxim Integrated 1: $12.88 2,325In Stock	Mfr. Part No. MAX7311AUG+T Mouser Part No 700-MAX7311AUGT	Analog Devices / Maxim Integrated	Interface - I/O Expanders 2-Wire-Interfaced 16-Bit I/O Port Expand	Datasheet	2,325In Stock	Cut Tape $12.88 $10.09 $9.39 $8.63 View $8.54 $8.51 $7.24 MouseReel Available	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		Reel, Cut Tape, MouseReel
Interface - I/O Expanders I C Port Expander with 8 Open-Drain I/Os MAX7321ATE+T Analog Devices / Maxim Integrated 1: $4.54 6,474In Stock	Mfr. Part No. MAX7321ATE+T Mouser Part No 700-MAX7321ATET	Analog Devices / Maxim Integrated	Interface - I/O Expanders I C Port Expander with 8 Open-Drain I/Os	Datasheet	6,474In Stock	Cut Tape $4.54 $3.45 $3.18 $2.87 View Reel $2.49 $2.73 $2.56 $2.49 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	MAX7321	SMD/SMT	TQFN-16	I2C, Serial	8 I/O	With Interrupt	1.71 V	5.5 V	400 kHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	Without ESD Protection
Interface - I/O Expanders 8-bit translating I& sup2;C-bus/SMBus I/ TCAL6408PWR Texas Instruments 1: $1.53 2,808In 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	2,808In Stock	Cut Tape $1.53 $1.12 $1.02 $0.899 Reel $0.751 View $0.845 $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 16-bit translating I C-bus/SMBus I/O exp TCAL6416PWR Texas Instruments 1: $2.11 2,929In Stock	Mfr. Part No. TCAL6416PWR Mouser Part No 595-TCAL6416PWR	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	2,929In Stock	Cut Tape $2.11 $1.56 $1.43 $1.27 Reel $1.07 View $1.20 $1.16 $1.14 $1.03 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	TCAL6416	SMD/SMT	TSSOP-24	I2C, Serial, SMBus		With Interrupt	1.08 V	3.6 V	1 MHz	- 40 C	+ 125 C		Reel, Cut Tape, MouseReel	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 $1.46 $1.33 $1.19 View $1.12 $1.08 $1.07 $0.966 $0.946	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 ULTRA LOW VOLTAGE AG ILE I/O EXPANDER TCAL9538RSVR Texas Instruments 1: $1.92 3,310In Stock 9,000Expected 03/05/2027	Mfr. Part No. TCAL9538RSVR Mouser Part No 595-TCAL9538RSVR	Texas Instruments	Interface - I/O Expanders ULTRA LOW VOLTAGE AG ILE I/O EXPANDER Learn More about Texas Instruments ti tcal9538 expanders	Datasheet	3,310In Stock 9,000Expected 03/05/2027	Cut Tape $1.92 $1.42 $1.29 $1.15 Reel $0.966 View $1.08 $1.04 $0.946 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	TCAL9538	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 Interface IO Expander TSSOP-24 T&R 3K PI4IOE5V6416ALEX Diodes Incorporated 1: $1.96 1,750In Stock	Mfr. Part No. PI4IOE5V6416ALEX Mouser Part No 621-PI4IOE5V6416ALEX	Diodes Incorporated	Interface - I/O Expanders Interface IO Expander TSSOP-24 T&R 3K Learn More about Diodes Incorporated diodes pi4ioe5v6416 io expander		1,750In Stock	Cut Tape $1.96 $1.44 $1.27 $1.16 View Reel $0.972 $1.13 $1.11 $1.10 $0.972 MouseReel Available	Min.: 1 Mult.: 1 : 3,000		SMD/SMT	TSSOP-24	I2C, Serial	16 I/O	With Interrupt	1.65 V	5.5 V	1 MHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders Interface IO Expander V-QFN4040-24 T&R 3.5K PI4IOE5V6416AZDEX Diodes Incorporated 1: $1.38 5,464In Stock	Mfr. Part No. PI4IOE5V6416AZDEX Mouser Part No 621-PI4IOE5V6416AZDE	Diodes Incorporated	Interface - I/O Expanders Interface IO Expander V-QFN4040-24 T&R 3.5K Learn More about Diodes Incorporated diodes pi4ioe5v6416 io expander		5,464In Stock	Cut Tape $1.38 $1.00 $0.905 $0.80 Reel $0.749 View $0.749 $0.651 MouseReel Available	Min.: 1 Mult.: 1 : 3,500		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 Interface IO Expander W-QFN5050-32 T&R 2.5K PI4IOE5V6524ZHEX Diodes Incorporated 1: $2.16 3,218In Stock 5,000Expected 14/04/2028	Mfr. Part No. PI4IOE5V6524ZHEX Mouser Part No 621-PI4IOE5V6524ZHEX	Diodes Incorporated	Interface - I/O Expanders Interface IO Expander W-QFN5050-32 T&R 2.5K Learn More about Diodes Incorporated diodes pi4ioe5v6416 io expander		3,218In Stock 5,000Expected 14/04/2028	Cut Tape $2.16 $1.60 $1.44 $1.30 $1.22 Reel $1.22 MouseReel Available	Min.: 1 Mult.: 1 Max.: 320 : 2,500		SMD/SMT	WQFN5050-32	I2C, Serial	24 I/O	With Interrupt	1.65 V	5.5 V	1 MHz	- 40 C	+ 85 C		Reel, Cut Tape, MouseReel	2 kV
Interface - I/O Expanders NCA9535PW/SOT355/TSSOP24 NCA9535PWJ Nexperia 1: $1.42 2,614In Stock	Mfr. Part No. NCA9535PWJ Mouser Part No 771-NCA9535PWJ	Nexperia	Interface - I/O Expanders NCA9535PW/SOT355/TSSOP24 Learn More about Nexperia nca9535 nca9539 nca9555 gipo expanders	Datasheet	2,614In Stock	Cut Tape $1.42 $1.03 $0.925 $0.818 Reel $0.672 View $0.766 $0.735 $0.703 $0.654 MouseReel Available	Min.: 1 Mult.: 1 : 2,500		SMD/SMT	TSSOP-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
Interface - I/O Expanders NCA9555PW/SOT355/TSSOP24 NCA9555PWJ Nexperia 1: $1.62 2,705In Stock	Mfr. Part No. NCA9555PWJ Mouser Part No 771-NCA9555PWJ	Nexperia	Interface - I/O Expanders NCA9555PW/SOT355/TSSOP24 Learn More about Nexperia nca9555pw expanders	Datasheet	2,705In Stock	Cut Tape $1.62 $1.21 $1.10 $0.975 Reel $0.802 View $0.917 $0.881 $0.857 $0.784 MouseReel Available	Min.: 1 Mult.: 1 : 2,500		SMD/SMT	TSSOP-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
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 $0.875 View Reel $0.716 $0.822 $0.79 $0.781 $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 14-bit SPI Level Translating I/O Expander with Agile I/O and AEC-Q100 Compliant in HVQFN24 package PCAL9714HN/Q900MP NXP Semiconductors 1: $1.65 6,998In Stock	Mfr. Part No. PCAL9714HN/Q900MP Mouser Part No 771-PCAL9714HNQ900MP	NXP Semiconductors	Interface - I/O Expanders 14-bit SPI Level Translating I/O Expander with Agile I/O and AEC-Q100 Compliant in HVQFN24 package Learn More about NXP Semiconductors nxp pcal9714 expanders	Datasheet	6,998In Stock	Cut Tape $1.65 $1.24 $1.13 $1.01 View Reel $0.86 $0.952 $0.921 $0.916 $0.889 $0.86	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	+ 125 C	AEC-Q100	Reel, Cut Tape	2 kV
Interface - I/O Expanders 16bit Input/Output Exp I2C interface MCP23017-E/ML Microchip Technology 1: $1.90 43,091In Stock	Mfr. Part No. MCP23017-E/ML Mouser Part No 579-MCP23017-E/ML	Microchip Technology	Interface - I/O Expanders 16bit Input/Output Exp I2C interface Learn More about Microchip Technology microchip mcp23x17 io expanders	Datasheet	43,091In Stock	$1.90 $1.59 $1.44	Min.: 1 Mult.: 1	MCP23017	SMD/SMT	QFN-28	I2C, Serial	16 I/O	With Interrupt	1.8 V	5.5 V	1.7 MHz	- 40 C	+ 125 C		Tube	4 kV