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
	PCA9535PW,118 IC I/O EXPANDER I2C 16B 24TSSOP NXP USA Inc.	111	$2.52			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
	PCA9535PW,112 IC I/O EXPANDER I2C 16B 24TSSOP NXP USA Inc.	376	$2.50			Bulk	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
	PCA9535BS,118 IC I/O EXPANDER I2C 16B 24HVQFN NXP USA Inc.	276	$2.52			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-HVQFN (4x4)
	MCP23S18-E/SP IC EXPANDER SPI 16BIT I/O 28SDIP Microchip Technology	314	$2.20			Tube	Active	16	SPI	Yes	-	Open Drain	25mA	10 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Through Hole	28-DIP (0.300", 7.62mm)	28-SPDIP
	MCP23016-I/SS IC I/O EXPANDER I2C 16B 28SSOP Microchip Technology	70	$2.24			Tube	Active	16	I²C	Yes	POR	Push-Pull	25mA	400 kHz	2V ~ 5.5V	-40°C ~ 85°C	Surface Mount	28-SSOP (0.209", 5.30mm Width)	28-SSOP
	PCA9535ECDTR2G IC I/O EXPANDER 16B 24TSSOP onsemi	134	$4.35			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-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	PCA9575PW2,118 IC I2C/SMBUS 16BIT GPIO 28-TSSOP NXP USA Inc.	318	$2.55			Tape & Reel (TR)	Active	16	I²C, SMBus	Yes	POR	Push-Pull	1mA, 3mA	400 kHz	1.1V ~ 3.6V	-40°C ~ 85°C	Surface Mount	28-TSSOP (0.173", 4.40mm Width)	28-TSSOP
	PCA8575BS,118 IC I/O EXPANDER I2C 16B 24HVQFN NXP USA Inc.	104	$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-VFQFN Exposed Pad	24-HVQFN (4x4)
	PCF8574ADW IC I/O EXPANDER I2C 8B 16SOIC Texas Instruments	323	$2.29			Bulk	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
	PCF8574APW IC I/O EXPANDER I2C 8B 20TSSOP Texas Instruments	373	$2.30			Bulk	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
	PCF8574PW IC I/O EXPANDER I2C 8B 20TSSOP Texas Instruments	319	$2.31			Bulk	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
	PCA9555D,118 IC I/O EXPANDER I2C 16B 24SOIC NXP USA Inc.	102	$2.73			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-SO
	PCF8575TS/1,118 IC I/O EXPANDER I2C 16B 24SSOP NXP USA Inc.	186	$3.06			Tape & Reel (TR)	Active	16	I²C	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	2.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-SSOP (0.209", 5.30mm Width)	24-SSOP
	PCA9671PW,118 IC I/O EXPANDER I2C 16B 24TSSOP NXP USA Inc.	130	$2.81			Tape & Reel (TR)	Active	16	I²C	No	POR	Push-Pull	100µA, 25mA	1 MHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	PCA9535DW IC I/O EXPANDER I2C 16B 24SOIC Texas Instruments	293	$2.77			Bulk	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
	PCA9539DW IC I/O EXPANDER I2C 16B 24SOIC Texas Instruments	108	$2.82			Tube	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
	PCA9555DW IC I/O EXPANDER I2C 16B 24SOIC Texas Instruments	118	$2.98			Bulk	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
	PCF8575PW IC I/O EXPANDER I2C 16B 24TSSOP Texas Instruments	282	$3.40			Tube	Active	16	I²C, SMBus	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	PCF8575CDB IC I/O EXPANDER I2C 16B 24SSOP Texas Instruments	40	$3.73			Tube	Active	16	I²C, SMBus	Yes	POR	Open Drain	10mA, 25mA	400 kHz	4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-SSOP (0.209", 5.30mm Width)	24-SSOP
	MAX7322AEE+ IC I/O EXPANDER I2C 4B 16QSOP Analog Devices Inc./Maxim Integrated	19	$5.23			Tube	Active	4	I²C	Yes	POR	-	20mA	400 kHz	1.7V ~ 5.5V	-40°C ~ 125°C	Surface Mount	16-SSOP (0.154", 3.90mm Width)	16-QSOP