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

381 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
	TCA6418EYFPR IC I/O EXPANDER I2C 18B 25DSBGA Texas Instruments	9	$1.84			Tape & Reel (TR)	Active	18	I²C	Yes	Keypad Controller, POR	Push-Pull	10mA, 25mA	1 MHz	1.65V ~ 3.6V	-40°C ~ 85°C	Surface Mount	25-XFBGA, DSBGA	25-DSBGA
	PCF8574ADWR IC I/O EXPANDER I2C 8B 16SOIC Texas Instruments	149	$1.92			Tape & Reel (TR)	Active	8	I²C	Yes	POR	Push-Pull	1mA, 25mA	100 kHz	2.5V ~ 6V	-40°C ~ 85°C	Surface Mount	16-SOIC (0.295", 7.50mm Width)	16-SOIC
	PCF8574PWR IC I/O EXPANDER I2C 8B 20TSSOP Texas Instruments	176	$1.95			Tape & Reel (TR)	Active	8	I²C	Yes	POR	Push-Pull	1mA, 25mA	100 kHz	2.5V ~ 6V	-40°C ~ 85°C	Surface Mount	20-TSSOP (0.173", 4.40mm Width)	20-TSSOP
	PCF8574DWR IC I/O EXPANDER I2C 8B 16SOIC Texas Instruments	442	$1.92			Tape & Reel (TR)	Active	8	I²C	Yes	POR	Push-Pull	1mA, 25mA	100 kHz	2.5V ~ 6V	-40°C ~ 85°C	Surface Mount	16-SOIC (0.295", 7.50mm Width)	16-SOIC
	NLVPCA9535EDTR2G IC EXPANDER 16-BIT I/O 24TSSOP onsemi	237	$2.36			Tape & Reel (TR)	Active	16	I²C	Yes	-	Open Drain	-	100 kHz	1.65V ~ 5.5V	-55°C ~ 125°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	TCA6416APWR IC I/O EXPANDER I2C 16B 24TSSOP Texas Instruments	209	$2.05			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-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	TCA9555PWR IC I/O EXPANDER I2C 16B 24TSSOP Texas Instruments	218	$1.99			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-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	TCA9555RTWR IC I/O EXPANDER I2C 16B 24WQFN Texas Instruments	302	$2.03			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)
	TCA9555RGER IC I/O EXPANDER I2C SMBUS 24VQFN Texas Instruments	345	$1.99			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-VFQFN Exposed Pad	24-VQFN (4x4)
	TCA9555DBR IC I/O EXPANDER 16B 24SSOP Texas Instruments	410	$2.00			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-SSOP (0.209", 5.30mm Width)	24-SSOP
	PCA9534DWR IC I/O EXPANDER I2C 8B 16SOIC Texas Instruments	272	$2.04			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-SOIC (0.295", 7.50mm Width)	16-SOIC
	PCAL6408APWJ IC I/O EXPANDER 16TSSOP NXP USA Inc.	245	$1.56		Agile	Tape & Reel (TR)	Active	8	I²C, SMBus	Yes	POR	Open Drain, Push-Pull	10mA, 25mA	400 kHz	1.65V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP
	PCAL6408AEX1Z LOW-VOLTAGE TRANSLATING, 8-BIT I NXP USA Inc.	75	$1.57			Tape & Reel (TR)	Active	8	I²C, SMBus	Yes	POR	Open Drain, Push-Pull	10mA, 25mA	400 kHz	1.65V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-XFLGA	16-X2QFN (1.6x1.6)
	PCA9536D,118 IC I/O EXPANDER I2C 4B 8SOIC NXP USA Inc.	468	$1.56			Tape & Reel (TR)	Active	4	I²C, SMBus	No	POR	Push-Pull	10mA, 25mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SO
	PCA9534PW,118 IC I/O EXPANDER I2C 8B 16TSSOP NXP USA Inc.	444	$1.98			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
	PCA6408ABSHP IC I/O EXPANDER 8BIT I2C 16HVQFN NXP USA Inc.	366	$1.65			Tape & Reel (TR)	Active	8	I²C, SMBus	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	1.65V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-VFQFN Exposed Pad	16-HVQFN (3x3)
	PCA9539DWR IC I/O EXPANDER I2C 16B 24SOIC Texas Instruments	306	$2.36			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-SOIC (0.295", 7.50mm Width)	24-SOIC
	PCA9555RGER IC I/O EXPANDER I2C 16B 24VQFN Texas Instruments	105	$2.50			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-VFQFN Exposed Pad	24-VQFN (4x4)
	PCA9555DBR IC I/O EXPANDER I2C 16B 24SSOP Texas Instruments	377	$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 (0.209", 5.30mm Width)	24-SSOP
	PCA9555DWR IC I/O EXPANDER I2C 16B 24SOIC Texas Instruments	250	$2.47			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-SOIC (0.295", 7.50mm Width)	24-SOIC