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

381 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
	PCF8574APWR IC I/O EXPANDER I2C 8B 20TSSOP Texas Instruments	168	$1.91			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.	373	$1.97			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
	PCA9674ABS,118 IC I/O EXPANDER I2C 8B 16HVQFN NXP USA Inc.	169	$2.12			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	231	$2.23			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.	212	$2.45			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
	PCA9554PWR IC I/O EXPANDER I2C 8B 16TSSOP Texas Instruments	235	$2.67			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.	354	$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.	164	$2.81			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	52	$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
	PCF8575CTS/1,118 IC I/O EXPANDER I2C 16B 24SSOP NXP USA Inc.	206	$3.11			Tape & Reel (TR)	Active	16	I²C	Yes	POR	Push-Pull	25mA	400 kHz	4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-SSOP (0.209", 5.30mm Width)	24-SSOP
	PCF8575CPW IC I/O EXPANDER I2C 16B 24TSSOP Texas Instruments	203	$3.71			Tube	Active	16	I²C, SMBus	Yes	POR	Open Drain	10mA, 25mA	400 kHz	4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	PCA9501D,118 PARALLEL I/O PORT, 8-BIT, 8 I/O, NXP USA Inc.	586	$1.32			Tape & Reel (TR)	Obsolete	8	I²C, SMBus	Yes	EEPROM, POR	Push-Pull	100µA, 25mA	400 kHz	2.5V ~ 3.6V	-40°C ~ 85°C	Surface Mount	20-SOIC (0.295", 7.50mm Width)	20-SO
	PCA9536D IC I/O EXPANDER I2C 4B 8SOIC Texas Instruments	300	$1.86			Tube	Last Time Buy	4	I²C, SMBus	No	POR	Push-Pull	10mA, 25mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
	PCA9554APW IC I/O EXPANDER I2C 8B 16TSSOP Texas Instruments	81	$2.09			Tube	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
	PCF8574DW IC I/O EXPANDER I2C 8B 16SOIC Texas Instruments	320	$2.31			Tube	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
	PCA9534DW IC I/O EXPANDER I2C 8B 16SOIC Texas Instruments	55	$2.49			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
	PCA9554DW IC I/O EXPANDER I2C 8B 16SOIC Texas Instruments	306	$2.63			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
	PCA9535DB IC I/O EXPANDER I2C 16B 24SSOP Texas Instruments	152	$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-SSOP (0.209", 5.30mm Width)	24-SSOP
	PCA9534ADW IC I/O EXPANDER I2C 8B 16SOIC Texas Instruments	258	$2.47			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
	PCA9535D,112 IC I/O EXPANDER I2C 16B 24SOIC NXP USA Inc.	16	$2.51			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-SO