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
	PI4IOE5V9535LEX IC I/O EXPANDER 16B I2C 24TSSOP Diodes Incorporated	298	$1.58			Tape & Reel (TR)	Active	16	I²C	Yes	-	-	-	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	PCA9670BS,118 IC I/O EXPANDER I2C 8B 16HVQFN NXP USA Inc.	163	$1.66			Tape & Reel (TR)	Active	8	I²C	No	POR	Push-Pull	100µA, 25mA	1 MHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-VFQFN Exposed Pad	16-HVQFN (3x3)
	PCAL6416AEVJ IC I/O EXPANDER 16BIT 24VFBGA NXP USA Inc.	562	$1.71		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-VFBGA	24-VFBGA (3x3)
	TCA9534DWT IC I/O EXPANDER I2C 8B 16SOIC Texas Instruments	491	$1.72			Tape & Reel (TR)	Active	8	I²C	Yes	-	Push-Pull	-	400 kHz	1.65V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-SOIC (0.295", 7.50mm Width)	16-SOIC
	PCA9574BS,118 IC I/O EXPANDER I2C 8B 16HVQFN NXP USA Inc.	282	$1.81			Tape & Reel (TR)	Active	8	I²C, SMBus	Yes	POR	Push-Pull	1mA, 3mA	400 kHz	1.1V ~ 3.6V	-40°C ~ 85°C	Surface Mount	16-VFQFN Exposed Pad	16-HVQFN (3x3)
	PCA9554CPWJ IC GPIO EXPANDER 16TSSOP NXP USA Inc.	26	$1.77			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-TSSOP (0.173", 4.40mm Width)	16-TSSOP
	PCA9574PW,118 IC I/O EXPANDER I2C 8B 16TSSOP NXP USA Inc.	129	$1.79			Tape & Reel (TR)	Active	8	I²C, SMBus	Yes	POR	Push-Pull	1mA, 3mA	400 kHz	1.1V ~ 3.6V	-40°C ~ 85°C	Surface Mount	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP
	PCA9574PW,112 IC I/O EXPANDER I2C 8B 16TSSOP NXP USA Inc.	21	$0.60			Tape & Reel (TR)	Obsolete	8	I²C, SMBus	Yes	POR	Push-Pull	1mA, 3mA	400 kHz	1.1V ~ 3.6V	-40°C ~ 85°C	Surface Mount	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP
	PCA9538DGVR IC I/O EXPANDER I2C 8B 16TVSOP Texas Instruments	76	$1.82			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-TFSOP (0.173", 4.40mm Width)	16-TVSOP
	PCF8574APWR IC I/O EXPANDER I2C 8B 20TSSOP Texas Instruments	270	$1.94			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
	PCA9554AD,118 IC I/O EXPANDER I2C 8B 16SOIC NXP USA Inc.	355	$2.01			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-SO
	MCP23018T-E/SO IC I/O EXPANDER I2C 16B 28SOIC Microchip Technology	393	$2.03			Tape & Reel (TR)	Active	16	I²C	Yes	POR	Open Drain	25mA	3.4 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	28-SOIC (0.295", 7.50mm Width)	28-SOIC
	PCA9674ABS,118 IC I/O EXPANDER I2C 8B 16HVQFN NXP USA Inc.	384	$2.11			Tape & Reel (TR)	Active	8	I²C	Yes	POR	Push-Pull	100µA, 25mA	1 MHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-VFQFN Exposed Pad	16-HVQFN (3x3)
	PCA9554DBR IC I/O EXPANDER I2C 8B 16SSOP Texas Instruments	252	$2.21			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-SSOP (0.209", 5.30mm Width)	16-SSOP
	PCA9703PW,118 IC SHIFT REG SPI GPI 24TSSOP NXP USA Inc.	99	$2.43			Tape & Reel (TR)	Active	16 (Input Only)	SPI Serial	Yes	-	Push-Pull	-	5 MHz	4.5V ~ 5.5V	-	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	MIC74YQS-TR IC I/O EXPANDER I2C 8B 16QSOP Microchip Technology	207	$2.64			Tape & Reel (TR)	Active	8	I²C, SMBus	Yes	Fan Speed Controller	Open Drain, Push-Pull	7mA, 10mA	100 kHz	2.7V ~ 3.6V	-40°C ~ 85°C	Surface Mount	16-SSOP (0.154", 3.90mm Width)	16-QSOP
	PCA9554PWR IC I/O EXPANDER I2C 8B 16TSSOP Texas Instruments	79	$2.62			Tape & Reel (TR)	Not For New Designs	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
	PCA9554PW/Q900,118 IC I/O EXPANDER I2C 8B 16TSSOP NXP USA Inc.	27	$2.70			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
	PCA9500BS,118 IC I/O EXPANDER I2C 8B 16HVQFN NXP USA Inc.	158	$2.75			Tape & Reel (TR)	Active	8	I²C, SMBus	No	EEPROM, POR	Push-Pull	100µA, 25mA	400 kHz	2.5V ~ 3.6V	-40°C ~ 85°C	Surface Mount	16-VQFN Exposed Pad	16-HVQFN (4x4)
	PCF8575DWR IC I/O EXPANDER I2C 16B 24SOIC Texas Instruments	282	$2.83			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-SOIC (0.295", 7.50mm Width)	24-SOIC