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
	CS82C55AZ96 IC I/O EXPANDER 24B 44PLCC Renesas Electronics America Inc	9	$15.62			Tape & Reel (TR)	Active	24	Parallel	No	-	Open Drain	2.5mA	-	4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	44-LCC (J-Lead)	44-PLCC (16.58x16.58)
	CP82C55A-5Z IC I/O EXPANDER 24B 40DIP Renesas Electronics America Inc	36	$12.57			Tube	Active	24	Parallel	No	-	Open Drain	2.5mA	-	4.5V ~ 5.5V	0°C ~ 70°C	Through Hole	40-DIP (0.600", 15.24mm)	40-PDIP
	CS82C55AZ IC I/O EXPANDER 24B 44PLCC Renesas Electronics America Inc	27	$15.31			Tube	Active	24	Parallel	No	-	Open Drain	2.5mA	-	4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	44-LCC (J-Lead)	44-PLCC (16.58x16.58)
	CQ82C55AZ IC I/O EXPANDER 24B 44MQFP Renesas Electronics America Inc	39	$16.37			Tray	Active	24	Parallel	No	-	Open Drain	2.5mA	-	4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	44-QFP	44-MQFP (10x10)
	IS82C55AZ96 IC I/O EXPANDER 24B 44PLCC Renesas Electronics America Inc	3	$27.40			Tape & Reel (TR)	Active	24	Parallel	No	-	Open Drain	2.5mA	-	4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	44-LCC (J-Lead)	44-PLCC (16.58x16.58)
	PI4IOE5V6408ZTAEX INTERFACE IO EXPANDER U-QFN2618- Diodes Incorporated	365	$0.86			Tape & Reel (TR)	Active	8	I²C	Yes	-	Push-Pull	-	1 MHz	1.65V ~ 3.6V	-40°C ~ 85°C	Surface Mount	16-UFQFN	16-UQFN (1.8x2.6)
	PI4IOE5V9554ALEX IC I/O EXPANDER 8-BIT 16TSSOP Diodes Incorporated	451	$1.36			Tape & Reel (TR)	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
	TCA6408ARSVR IC I/O EXPANDER I2C 8B 16QFN Texas Instruments	601	$1.24			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-UFQFN	16-UQFN (2.6x1.8)
	PCA9536DGKR IC I/O EXPANDER I2C 4B 8VSSOP Texas Instruments	620	$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-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-VSSOP
	TCA9536DGKR REMOTE 4-BIT IC AND SMBUS I/O EX Texas Instruments	317	$1.53			Tape & Reel (TR)	Active	4	I²C, SMBus	Yes	POR	Open Drain	10mA, 25mA	1 MHz	1.65V ~ 5.5V	-40°C ~ 125°C	Surface Mount	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-VSSOP
	TCA6408APWR IC I/O EXPANDER I2C 8B 16TSSOP Texas Instruments	455	$1.54			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
	TCA9534APWR IC I/O EXPANDER I2C 8B 16TSSOP Texas Instruments	101	$1.59			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
	TCA9554APWR IC I/O EXPANDER I2C 8BIT 16TSSOP Texas Instruments	329	$1.65			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
	TCA9554DBQR IC I/O EXPANDER I2C 8BIT 16TSSOP Texas Instruments	23	$1.63			Tape & Reel (TR)	Active	8	I²C	Yes	POR	Push-Pull	-	400 kHz	1.65V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-SSOP (0.154", 3.90mm Width)	16-SSOP
	TCA9554ADBR IC SMBUS I/O EXPANDER I2C 16SSOP Texas Instruments	436	$1.66			Tape & Reel (TR)	Active	8	I²C, SMBus	Yes	POR	Push-Pull	-	400 kHz	1.65V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-SSOP (0.209", 5.30mm Width)	16-SSOP
	PCA9557PWR IC I/O EXPANDER I2C 8B 16TSSOP Texas Instruments	354	$1.55			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-TSSOP (0.173", 4.40mm Width)	16-TSSOP
	PCA9557RGVR IC I/O EXPANDER I2C 8B 16QFN Texas Instruments	633	$1.57			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-VQFN (4x4)
	PCA9554ARGVR IC I/O EXPANDER I2C 8B 16VQFN Texas Instruments	610	$1.55			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-VQFN (4x4)
	PCA9554ARGTR IC I/O EXPANDER I2C 8B 16QFN Texas Instruments	186	$1.58			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-VQFN (3x3)
	PCAL6408ABSHP IC I/O EXPANDER 8BIT I2C 16HVQFN NXP USA Inc.	558	$1.55			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-VFQFN Exposed Pad	16-HVQFN (3x3)