Interface - I/O Expanders

Category Introduction

Devices in this family are used in conjunction with microcontrollers, microprocessors, or similar devices for the purpose of increasing the number of signal connections available for connecting peripheral devices. The typical concept of operation involves the use of serial communications requiring only a few I/O lines on the host device to read/write the status of many input/output pins on the expander device. The technique exchanges speed of communication for increased connectivity, and is best suited for applications where fast response is not critical, such as in many human interface applications.

Product List

1060 Items

PDF	Mfr Part #	Quantity Available	UnitPrice	RFQ	Series	Packaging	Product Status	Number of I/O	Interface	Interrupt Output	Features	Output Type	Current - Output Source/Sink	Clock Frequency	Voltage - Supply	Operating Temperature	Mounting Type	Package / Case	Supplier Device Package
	TCA6416ARTWR IC I/O EXPANDER I2C 16B 24WQFN Texas Instruments	391	$2.04			Tape & Reel (TR)	Active	16	I²C, SMBus	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	1.65V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-WFQFN Exposed Pad	24-WQFN (4x4)
	MCP23S08T-E/SS IC I/O EXPANDER SPI 8B 20SSOP Microchip Technology	369	$1.53			Tape & Reel (TR)	Active	8	SPI	Yes	POR	Push-Pull	25mA	10 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	20-SSOP (0.209", 5.30mm Width)	20-SSOP
	PCA9534APWR IC I/O EXPANDER I2C 8B 16TSSOP Texas Instruments	339	$2.08			Tape & Reel (TR)	Active	8	I²C, SMBus	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP
	PCA9534ARGVR IC I/O EXPANDER I2C 8B 16QFN Texas Instruments	115	$2.07			Tape & Reel (TR)	Active	8	I²C, SMBus	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-VQFN Exposed Pad	16-VQFN (4x4)
	PCA9534ARGTR IC I/O EXPANDER I2C 8B 16VQFN Texas Instruments	83	$2.07			Tape & Reel (TR)	Active	8	I²C, SMBus	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-VFQFN Exposed Pad	16-VQFN (3x3)
	MCP23017T-E/SO IC I/O EXPANDER I2C 16B 28SOIC Microchip Technology	71	$1.58			Tape & Reel (TR)	Active	16	I²C	Yes	POR	Push-Pull	25mA	1.7 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	28-SOIC (0.295", 7.50mm Width)	28-SOIC
	MCP23S17T-E/SO IC I/O EXPANDER SPI 16B 28SOIC Microchip Technology	345	$1.68			Tape & Reel (TR)	Active	16	SPI	Yes	POR	Push-Pull	25mA	10 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	28-SOIC (0.295", 7.50mm Width)	28-SOIC
	MCP23S09T-E/MG IC I/O EXPANDER SPI 8B 16QFN Microchip Technology	63	$1.67			Tape & Reel (TR)	Active	8	SPI	Yes	-	Open Drain	25mA	10 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	16-VFQFN Exposed Pad	16-QFN (3x3)
	TCA9539QPWRQ1 IC I/O EXPANDER I2C 16BIT 24TSSO Texas Instruments	307	$2.35		Automotive, AEC-Q100	Tape & Reel (TR)	Active	16	I²C, SMBus	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	1.65V ~ 3.6V	-40°C ~ 125°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	MCP23S17T-E/SS IC I/O EXPANDER SPI 16B 28SSOP Microchip Technology	414	$1.74			Tape & Reel (TR)	Active	16	SPI	Yes	-	Push-Pull	25mA	10 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	28-SSOP (0.209", 5.30mm Width)	28-SSOP
	MCP23S08T-E/SO IC I/O EXPANDER SPI 8B 18SOIC Microchip Technology	347	$1.52			Tape & Reel (TR)	Active	8	SPI	Yes	POR	Push-Pull	25mA	10 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	18-SOIC (0.295", 7.50mm Width)	18-SOIC
	PCA9555DBQR IC I/O EXPANDER I2C 16B 24QSOP Texas Instruments	217	$2.49			Tape & Reel (TR)	Active	16	I²C, SMBus	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-SSOP (0.154", 3.90mm Width)	24-SSOP
	PCF8575PWR IC I/O EXPANDER I2C 16B 24TSSOP Texas Instruments	194	$2.53			Tape & Reel (TR)	Active	16	I²C, SMBus	Yes	POR	Push-Pull	1mA, 25mA	400 kHz	2.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	TCA6424ARGJR IC I/O EXPANDER I2C 24B 32UQFN Texas Instruments	194	$2.55			Tape & Reel (TR)	Active	24	I²C, SMBus	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	1.65V ~ 5.5V	-40°C ~ 85°C	Surface Mount	32-UFQFN Exposed Pad	32-UQFN (5x5)
	MCP23017T-E/ML IC I/O EXPANDER I2C 16B 28QFN Microchip Technology	490	$1.86			Tape & Reel (TR)	Active	16	I²C	Yes	POR	Push-Pull	25mA	1.7 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	28-VQFN Exposed Pad	28-QFN (6x6)
	MCP23008-E/SS IC I/O EXPANDER I2C 8B 20SSOP Microchip Technology	195	$1.49			Tube	Active	8	I²C	Yes	POR	Push-Pull	25mA	1.7 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	20-SSOP (0.209", 5.30mm Width)	20-SSOP
	MCP23008-E/ML IC I/O EXPANDER I2C 8B 20QFN Microchip Technology	63	$1.47			Tube	Active	8	I²C	Yes	POR	Push-Pull	25mA	1.7 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	20-VFQFN Exposed Pad	20-QFN (4x4)
	MCP23S08T-E/ML IC I/O EXPANDER SPI 8B 20QFN Microchip Technology	87	$1.64			Tape & Reel (TR)	Active	8	SPI	Yes	POR	Push-Pull	25mA	10 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	20-VFQFN Exposed Pad	20-QFN (4x4)
	PCA9535PWR IC I/O EXPANDER I2C 16B 24TSSOP Texas Instruments	321	$2.63			Tape & Reel (TR)	Not For New Designs	16	I²C, SMBus	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	MCP23S17T-E/ML IC I/O EXPANDER SPI 16B 28QFN Microchip Technology	59	$2.00			Tape & Reel (TR)	Active	16	SPI	Yes	POR	Push-Pull	25mA	10 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	28-VQFN Exposed Pad	28-QFN (6x6)