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
	PI4IOE5V9554LE IC I/O EXPANDER 8-BIT 16TSSOP Diodes Incorporated	40	$1.32			Tube	Active	8	I²C	Yes	-	-	-	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP
	PCA9539PWR IC I/O EXPANDER I2C 16B 24TSSOP Texas Instruments	93	$2.67			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
	MCP23009-E/SO IC I/O EXPANDER I2C 8B 18SOIC Microchip Technology	196	$1.52			Tube	Active	8	I²C	Yes	POR	Open Drain	25mA	3.4 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	18-SOIC (0.295", 7.50mm Width)	18-SOIC
	PI4IOE5V9539LE IC I/O EXPANDER 16B I2C 24TSSOP Diodes Incorporated	245	$1.57			Tube	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
	PCA9538APWJ IC GPIO EXPANDER 8BIT 16TSSOP NXP USA Inc.	428	$1.80			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
	XRA1201PIL24-F IC I/O PORT EXPANDER I2C 24QFN MaxLinear, Inc.	140	$1.60			Tray	Active	16	I²C, SMBus	Yes	-	Push-Pull	-	400 kHz	1.65V ~ 3.6V	-40°C ~ 85°C	Surface Mount	24-VFQFN Exposed Pad	24-QFN (4x4)
	PCA9555PWR IC I/O EXPANDER I2C 16B 24TSSOP Texas Instruments	106	$2.93			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
	PCA9654EDTR2G IC I/O EXPANDER 8BIT I2C 16TSSOP onsemi	300	$3.23			Tape & Reel (TR)	Active	8	I²C	Yes	POR	-	-	100 kHz	1.65V ~ 5.5V	-55°C ~ 125°C	Surface Mount	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP
	PCA9554BS3,118 IC I/O EXPANDER I2C 8B 16HVQFN NXP USA Inc.	388	$2.00			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-HVQFN (3x3)
	PCA9554ADW IC I/O EXPANDER I2C 8B 16SOIC Texas Instruments	490	$1.87			Tube	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
	PCAL9554BPWJ IC GPIO EXPANDER 16TSSOP NXP USA Inc.	288	$2.22		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
	PCA9539APW,118 IC GPIO EXPANDER 24TSSOP NXP USA Inc.	368	$2.23			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
	PCA9554PW,112 IC I/O EXPANDER I2C 8B 16TSSOP NXP USA Inc.	452	$2.01			Bulk	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
	PCA9701PW,118 IC SPI GPI 16-BIT 24-TSSOP NXP USA Inc.	350	$2.26			Tape & Reel (TR)	Active	16 (Input Only)	SPI Serial	Yes	-	Push-Pull	-	5 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	MCP23016T-I/ML IC I/O EXPANDER I2C 16B 28QFN Microchip Technology	423	$2.28			Tape & Reel (TR)	Active	16	I²C	Yes	POR	Push-Pull	25mA	400 kHz	2V ~ 5.5V	-40°C ~ 85°C	Surface Mount	28-VQFN Exposed Pad	28-QFN (6x6)
	MCP23016-I/SP IC I/O EXPANDER I2C 16B 28SDIP Microchip Technology	42	$2.21			Tube	Active	16	I²C	Yes	POR	Push-Pull	25mA	400 kHz	2V ~ 5.5V	-40°C ~ 85°C	Through Hole	28-DIP (0.300", 7.62mm)	28-SPDIP
	PCA9535CPW,118 IC I/O EXPANDER I2C 16B 24TSSOP NXP USA Inc.	42	$2.51			Tape & Reel (TR)	Active	16	I²C, SMBus	Yes	POR	Open Drain	10mA, 25mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	PCA9534DB IC I/O EXPANDER I2C 8B 16SSOP Texas Instruments	61	$2.47			Bulk	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
	PCA9502BS,128 IC I/O EXPANDER I2C/SPI 24HVQFN NXP USA Inc.	300	$2.95			Tape & Reel (TR)	Active	8	I²C, SPI	Yes	-	Push-Pull	-	400 kHz	2.3V ~ 3.6V	-40°C ~ 85°C	Surface Mount	24-VFQFN Exposed Pad	24-HVQFN (4x4)
	PCA9501PW,118 IC I/O EXPANDER I2C 8B 20TSSOP NXP USA Inc.	174	$2.95			Tape & Reel (TR)	Active	8	I²C, SMBus	Yes	EEPROM	Push-Pull	100µA, 25mA	400 kHz	2.5V ~ 3.6V	-40°C ~ 85°C	Surface Mount	20-TSSOP (0.173", 4.40mm Width)	20-TSSOP