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
	TCA9555DBR IC I/O EXPANDER 16B 24SSOP Texas Instruments	185	$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	363	$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-SOIC (0.295", 7.50mm Width)	16-SOIC
	TCA9554DWT IC I/O EXPANDER I2C 8BIT 16SOIC Texas Instruments	549	$1.76			Tape & Reel (TR)	Active	8	I²C	Yes	POR	Push-Pull	-	400 kHz	1.65V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-SOIC (0.295", 7.50mm Width)	16-SOIC
	PCA9535ECMTTXG IC I/O EXPANDER 16B 24WQFN onsemi	339	$2.60			Tape & Reel (TR)	Active	16	I²C, SMBus	Yes	POR	Open Drain	25mA	100 kHz	1.65V ~ 5.5V	-55°C ~ 125°C	Surface Mount	24-WFQFN Exposed Pad	24-QFN (4x4)
	PCAL6408APWJ IC I/O EXPANDER 16TSSOP NXP USA Inc.	202	$1.54		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.	547	$1.53			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.	279	$1.58			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
	MCP23009T-E/SS IC I/O EXPANDER I2C 8B 20SSOP Microchip Technology	383	$1.62			Tape & Reel (TR)	Active	8	I²C	Yes	POR	Open Drain	25mA	3.4 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	20-SSOP (0.209", 5.30mm Width)	20-SSOP
	PCA9534PW,118 IC I/O EXPANDER I2C 8B 16TSSOP NXP USA Inc.	434	$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
	PCA9535RGER IC I/O EXPANDER I2C 16B 24VQFN Texas Instruments	401	$2.30			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)
	PCA6408ABSHP IC I/O EXPANDER 8BIT I2C 16HVQFN NXP USA Inc.	2	$1.64			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)
	PCA9539RGER IC I/O EXPANDER I2C 16B 24VQFN Texas Instruments	241	$2.35			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)
	PCA9539DWR IC I/O EXPANDER I2C 16B 24SOIC Texas Instruments	331	$2.31			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
	TCA9535DBT IC I/O EXPANDER 16B I2C 24SSOP Texas Instruments	355	$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-SSOP (0.209", 5.30mm Width)	24-SSOP
	PCA9555RGER IC I/O EXPANDER I2C 16B 24VQFN Texas Instruments	161	$2.45			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	116	$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-SSOP (0.209", 5.30mm Width)	24-SSOP
	PCA9555DWR IC I/O EXPANDER I2C 16B 24SOIC Texas Instruments	348	$2.48			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
	PI4IOE5V96248ZLEX INTERFACE IO EXPANDER TQFN7070-5 Diodes Incorporated	347	$2.75			Tape & Reel (TR)	Active	48	I²C	Yes	-	Open Drain	42mA, 480µA	1 MHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	56-WFQFN Exposed Pad	56-TQFN (7x7)
	PCA6416APW,118 IC I/O EXPANDER I2C/SMB 24TSSOP NXP USA Inc.	345	$1.68			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
	MCP23009-E/SS IC I/O EXPANDER I2C 8B 20SSOP Microchip Technology	318	$1.49			Tube	Active	8	I²C	Yes	POR	Open Drain	25mA	3.4 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	20-SSOP (0.209", 5.30mm Width)	20-SSOP