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
	PCA9554DB IC I/O EXPANDER I2C 8B 16SSOP Texas Instruments	340	$2.67			Tube	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
	PCA9534ADB IC I/O EXPANDER I2C 8B 16SSOP Texas Instruments	99	$2.51			Tube	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
	PCA9536DR IC I/O EXPANDER I2C 4B 8SOIC Texas Instruments	492	$1.53			Tape & Reel (TR)	Active	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
	PCAL6408AHKX IC I/O EXPANDER 8BIT I2C 16XQFN NXP USA Inc.	229	$1.56		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-XFQFN	16-XQFN (1.8x2.6)
	TCA9534ADWR IC I/O EXPANDER I2C 8B 16SOIC Texas Instruments	568	$1.57			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
	PCF8574AT/3,518 IC I/O EXPANDER I2C 8B 16SOIC NXP USA Inc.	541	$1.67			Tape & Reel (TR)	Active	8	I²C	Yes	POR	Push-Pull	300µA, 25mA	100 kHz	2.5V ~ 6V	-40°C ~ 85°C	Surface Mount	16-SOIC (0.295", 7.50mm Width)	16-SO
	PCF8574TS/3,118 IC I/O EXPANDER I2C 8B 20SSOP NXP USA Inc.	139	$1.82			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
	PCA9554APW,118 IC I/O EXPANDER I2C 8B 16TSSOP NXP USA Inc.	205	$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
	PCA9534ADWR IC I/O EXPANDER I2C 8B 16SOIC Texas Instruments	49	$2.06			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-SOIC
	PCAL9538APWJ IC GPIO EXPANDER 16TSSOP NXP USA Inc.	88	$2.23		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
	PCA9535DBR IC I/O EXPANDER I2C 16B 24SSOP Texas Instruments	272	$2.35			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-SSOP (0.209", 5.30mm Width)	24-SSOP
	PCA9538PW IC I/O EXPANDER I2C 8B 16TSSOP Texas Instruments	216	$2.34			Tube	Obsolete	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
	PCA9654EDR2G IC I/O EXPANDER 8BIT I2C 16SOIC onsemi	146	$4.01			Tape & Reel (TR)	Active	8	I²C	Yes	POR	-	-	100 kHz	1.65V ~ 5.5V	-55°C ~ 125°C	Surface Mount	16-SOIC (0.154", 3.90mm Width)	16-SOIC
	PCA9703PW,112 IC SPI GPI 16-BIT 24TSSOP NXP USA Inc.	287	$1.31			Tube	Obsolete	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
	TCA9534PWR IC I/O EXPANDER I2C 8B 16TSSOP Texas Instruments	188	$1.42			Tape & Reel (TR)	Active	8	I²C	Yes	-	Push-Pull	-	400 kHz	1.65V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP
	TCA9535RTWR IC I/O EXPANDER I2C 16B 24WQFN Texas Instruments	279	$1.56			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-WFQFN Exposed Pad	24-WQFN (4x4)
	TCA6408ARGTR IC I/O EXPANDER I2C 8B 16QFN Texas Instruments	169	$1.56			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-VFQFN Exposed Pad	16-VQFN (3x3)
	TCA9554PWR IC I/O EXPANDER I2C 8BIT 16TSSOP Texas Instruments	73	$1.64			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
	TCA9535PWR IC I/O EXPANDER I2C 16B 24TSSOP Texas Instruments	33	$1.63			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
	TCA9538PWR IC I/O EXPANDER I2C 8B 16TSSOP Texas Instruments	504	$1.74			Tape & Reel (TR)	Active	8	I²C	Yes	-	Push-Pull	-	400 kHz	1.65V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP