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
	PCA9535EDTR2G IC I/O EXPANDER 16B 24TSSOP onsemi	294	$2.92			Tape & Reel (TR)	Active	16	I²C, SMBus	Yes	POR	Push-Pull	10mA, 25mA	100 kHz	1.65V ~ 5.5V	-55°C ~ 125°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	PCA9555PW,118 IC I/O EXPANDER I2C 16B 24TSSOP NXP USA Inc.	139	$2.34			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-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	PCA9557BS,118 IC I/O EXPANDER I2C 8B 16HVQFN NXP USA Inc.	204	$1.77			Tape & Reel (TR)	Active	8	I²C, SMBus	No	POR	Open Drain, Push-Pull	10mA, 25mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-VQFN Exposed Pad	16-HVQFN (4x4)
	MCP23S09-E/SO IC I/O EXPANDER SPI 8B 18SOIC Microchip Technology	551	$1.57			Tube	Active	8	SPI	Yes	-	Open Drain	25mA	10 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	18-SOIC (0.295", 7.50mm Width)	18-SOIC
	MCP23S18T-E/SO IC I/O EXPANDER SPI 16B 28SOIC Microchip Technology	310	$2.13			Tape & Reel (TR)	Active	16	SPI	Yes	-	Open Drain	25mA	10 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	28-SOIC (0.295", 7.50mm Width)	28-SOIC
	PCF8574ATS/3,118 IC I/O EXPANDER I2C 8B 20SSOP NXP USA Inc.	351	$1.81			Tape & Reel (TR)	Active	8	I²C	Yes	POR	Push-Pull	300µA, 25mA	100 kHz	2.5V ~ 6V	-40°C ~ 85°C	Surface Mount	20-LSSOP (0.173", 4.40mm Width)	20-SSOP
	TCA9555DBT IC I/O EXPANDER 400KHZ 24SSOP Texas Instruments	152	$2.43			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
	PCA8575PW,118 IC I/O EXPANDER I2C 16B 24TSSOP NXP USA Inc.	61	$2.59			Tape & Reel (TR)	Active	16	I²C	Yes	POR	Push-Pull	100µA, 25mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	MCP23S09-E/P IC I/O EXPANDER SPI 8B 18DIP Microchip Technology	389	$1.68			Tube	Active	8	SPI	Yes	-	Open Drain	25mA	10 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Through Hole	18-DIP (0.300", 7.62mm)	18-PDIP
	PCF8575RGER IC I/O EXPANDER I2C 16B 24VQFN Texas Instruments	42	$2.87			Tape & Reel (TR)	Active	16	I²C, SMBus	Yes	POR	Push-Pull	1mA, 25mA	400 kHz	4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-VFQFN Exposed Pad	24-VQFN (4x4)
	PCA9534BS,118 IC I/O EXPANDER I2C 8B 16HVQFN NXP USA Inc.	136	$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-VQFN Exposed Pad	16-HVQFN (4x4)
	PCA9538BS,118 IC I/O EXPANDER I2C 8B 16HVQFN NXP USA Inc.	54	$1.96			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-VQFN Exposed Pad	16-HVQFN (4x4)
	PCA9538PW,118 IC I/O EXPANDER I2C 8B 16TSSOP NXP USA Inc.	283	$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-TSSOP (0.173", 4.40mm Width)	16-TSSOP
	PCA9554ABS,118 IC I/O EXPANDER I2C 8B 16HVQFN NXP USA Inc.	406	$1.99			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-VQFN Exposed Pad	16-HVQFN (4x4)
	PCA9554BS,118 IC I/O EXPANDER I2C 8B 16HVQFN NXP USA Inc.	177	$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-VQFN Exposed Pad	16-HVQFN (4x4)
	PCA9554ABS3,118 IC I/O EXPANDER I2C 8B 16HVQFN NXP USA Inc.	184	$1.99			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)
	PCA9655EDWR2G IC I/O EXPANDER I2C 16B SOIC-24 onsemi	228	$3.37			Tape & Reel (TR)	Active	16	I²C, SMBus	Yes	POR	Push-Pull	42mA	100 kHz	1.65V ~ 5.5V	-55°C ~ 125°C	Surface Mount	24-SOIC (0.295", 7.50mm Width)	24-SOIC
	PCAL6524HEAZ IC EXPANDER 24B 32HUQFN NXP USA Inc.	302	$2.07			Tape & Reel (TR)	Active	24	I²C	Yes	POR	Open Drain, Push-Pull	-	1 MHz	1.65V ~ 5.5V	-40°C ~ 85°C	Surface Mount	32-UFQFN Exposed Pad	32-HUQFN (5x5)
	PCAL6524HEHP IC I/O EXPANDER 24BIT 32HUQFN NXP USA Inc.	42	$2.12			Tape & Reel (TR)	Active	24	I²C	Yes	POR	Open Drain, Push-Pull	-	1 MHz	1.65V ~ 5.5V	-40°C ~ 85°C	Surface Mount	32-UFQFN Exposed Pad	32-HUQFN (5x5)
	PCA9539PW,118 IC I/O EXPANDER I2C 16B 24TSSOP NXP USA Inc.	405	$2.09			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-TSSOP (0.173", 4.40mm Width)	24-TSSOP