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
	PCA9536DP,118 IC I/O EXPANDER I2C 4B 8TSSOP NXP USA Inc.	614	$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-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-TSSOP
	CAT9555YI-T2 IC I/O EXPANDER I2C 16B 24TSSOP onsemi	271	$1.95			Tape & Reel (TR)	Active	16	I²C, SMBus	Yes	POR	Push-Pull	10mA, 24mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	PCA9534PWR IC I/O EXPANDER I2C 8B 16TSSOP Texas Instruments	313	$1.66			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
	TCA9535RGER IC I/O EXPANDER I2C 16B 24VQFN Texas Instruments	587	$1.64			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)
	TCA9538DBR IC I/O EXPANDER I2C 8B 16TSSOP Texas Instruments	529	$1.72			Tape & Reel (TR)	Active	8	I²C	Yes	-	Push-Pull	-	400 kHz	1.65V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-SSOP (0.209", 5.30mm Width)	16-SSOP
	PCAL6416APW,118 IC I/O EXPANDER 16BIT 24TSSOP NXP USA Inc.	373	$1.70		Agile	Tape & Reel (TR)	Active	16	I²C, SMBus	Yes	POR	Open Drain, 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
	PCA9538DWR IC I/O EXPANDER I2C 8B 16SOIC Texas Instruments	477	$1.83			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
	PCA9538PWR IC I/O EXPANDER I2C 8B 16TSSOP Texas Instruments	76	$1.86			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
	PI4IOE5V96224ZLEX INTERFACE IO EXPANDER TQFN3060-3 Diodes Incorporated	292	$2.18			Tape & Reel (TR)	Active	24	I²C, SMBus	Yes	POR	Open Drain	25mA	1 MHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	32-WFQFN Exposed Pad	32-TQFN (3x6)
	TCA6418EYFPR IC I/O EXPANDER I2C 18B 25DSBGA Texas Instruments	451	$1.86			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	216	$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	153	$1.93			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	430	$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
	PCF8574ADGVR IC I/O EXPANDER I2C 8B 20TVSOP Texas Instruments	121	$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	20-TFSOP (0.173", 4.40mm Width)	20-TVSOP
	NLVPCA9535EDTR2G IC EXPANDER 16-BIT I/O 24TSSOP onsemi	380	$2.37			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
	TCA9539RGER IC I/O EXPANDER I2C 16B 24VQFN Texas Instruments	122	$1.94			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)
	TCA6416APWR IC I/O EXPANDER I2C 16B 24TSSOP Texas Instruments	170	$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-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	TCA9555PWR IC I/O EXPANDER I2C 16B 24TSSOP Texas Instruments	200	$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-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	TCA9555RTWR IC I/O EXPANDER I2C 16B 24WQFN Texas Instruments	308	$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-WFQFN Exposed Pad	24-WQFN (4x4)
	TCA9555RGER IC I/O EXPANDER I2C SMBUS 24VQFN Texas Instruments	131	$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-VFQFN Exposed Pad	24-VQFN (4x4)