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
	TCA9554DWR IC I/O EXPANDER I2C 8BIT 16-SOIC Texas Instruments	978	$0.75			Tape & Reel (TR)	Active	8	I²C	Yes	POR	Push-Pull	-	400 kHz	1.65V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-SOIC (0.295", 7.50mm Width)	16-SOIC
	W83L604G IC I/O EXPANDER SMBUS 14B 20SSOP Nuvoton Technology Corporation	834	$0.87			Tube	Active	14	SMBus	Yes	Buzzer Outputs, LED Outputs, POR	Open Drain, Push-Pull	16mA	-	3.3V	0°C ~ 70°C	Surface Mount	20-SSOP (0.209", 5.30mm Width)	20-SSOP
	PCA9557RGYR IC I/O EXPANDER I2C 8B 16QFN Texas Instruments	103	$0.75			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-VFQFN Exposed Pad	16-VQFN (4x3.5)
	PCA9557DGVR IC I/O EXPANDER I2C 8B 16TVSOP Texas Instruments	1,197	$0.74			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-TFSOP (0.173", 4.40mm Width)	16-TVSOP
	PCA9554ADBR IC I/O EXPANDER I2C 8B 16SSOP Texas Instruments	439	$0.79			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
	PCA9554ADGVR IC I/O EXPANDER I2C 8B 16TVSOP Texas Instruments	881	$0.74			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-TFSOP (0.173", 4.40mm Width)	16-TVSOP
	CAT9554YI-GT2 IC I/O EXPANDER I2C 8B 16TSSOP onsemi	174	$1.99			Tape & Reel (TR)	Obsolete	8	I²C, SMBus	Yes	POR	Push-Pull	10mA, 24mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP
	TCA9535MRGER REMOTE 16-BIT I2C AND SMBUS, LOW Texas Instruments	763	$0.83			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-VFQFN Exposed Pad	24-VQFN (4x4)
	XRA1202PIL16TR-F IC I/O PORT EXPANDER 8 BIT I2C G MaxLinear, Inc.	245	$0.98			Tape & Reel (TR)	Active	8	I²C, SMBus	Yes	-	Open Drain	-	400 kHz	1.65V ~ 3.6V	-40°C ~ 85°C	Surface Mount	16-VFQFN Exposed Pad	16-QFN (3x3)
	XRA1403IG24TR-F IC I/O PORT EXPANDER 16 BIT SPI MaxLinear, Inc.	753	$0.97			Tape & Reel (TR)	Active	16	SPI	Yes	-	Open Drain	-	26 MHz	1.65V ~ 3.6V	-40°C ~ 85°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	SX1508QBIULTRT IC GPIO EXPANDER I2C 8CH 20QFN Semtech Corporation	12	$1.00			Tape & Reel (TR)	Active	8	I²C	No	-	Open Drain, Push-Pull	8mA, 15mA	400 kHz	1.425V ~ 3.6V	-40°C ~ 85°C	Surface Mount	20-UFQFN Exposed Pad	20-QFN-UT (3x3)
	PCA9554APWR IC I/O EXPANDER I2C 8B 16TSSOP Texas Instruments	520	$0.91			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
	PCA9538DBR IC I/O EXPANDER I2C 8B 16SSOP Texas Instruments	86	$0.87			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
	XRA1404IL16TR-F IC I/O PORT EXPANDER 8 BIT SPI G MaxLinear, Inc.	79	$1.05			Tape & Reel (TR)	Active	8	SPI	Yes	-	Open Drain	-	26 MHz	1.65V ~ 3.6V	-40°C ~ 85°C	Surface Mount	16-VFQFN Exposed Pad	16-QFN (3x3)
	PCA9537DPZ IC I/O EXPANDER I2C 4B 10TSSOP NXP USA Inc.	532	$1.65			Tape & Reel (TR)	Active	4	I²C, SMBus	Yes	POR	Push-Pull	10mA, 24mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-TSSOP
	PCF8574RGYR IC I/O EXPANDER I2C 8B 20VQFN Texas Instruments	223	$0.90			Tape & Reel (TR)	Active	8	I²C	Yes	POR	Push-Pull	1mA, 25mA	100 kHz	2.5V ~ 6V	-40°C ~ 85°C	Surface Mount	20-VFQFN Exposed Pad	20-VQFN (3.5x4.5)
	PCF8574DGVR IC I/O EXPANDER I2C 8B 20TVSOP Texas Instruments	920	$0.91			Tape & Reel (TR)	Active	8	I²C	Yes	POR	Push-Pull	1mA, 25mA	100 kHz	2.5V ~ 6V	-40°C ~ 85°C	Surface Mount	20-TFSOP (0.173", 4.40mm Width)	20-TVSOP
	NLVPCA9535EMTTXG IC I/O PORT EXPANDER 16BIT 24QFN onsemi	204	$1.10			Tape & Reel (TR)	Active	8	I²C	Yes	-	Open Drain	-	100 kHz	1.65V ~ 5.5V	-55°C ~ 125°C	Surface Mount	24-WFQFN Exposed Pad	24-WQFN (4x4)
	PCA9536DG4 IC I/O EXPANDER I2C 4B 8SOIC Texas Instruments	615	$1.11			Bulk	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
	PCA9554ADB IC I/O EXPANDER I2C 8B 16SSOP Texas Instruments	867	$1.12			Bulk	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