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
	PCAL6408AHKX IC I/O EXPANDER 8BIT I2C 16XQFN NXP USA Inc.	506	$1.55		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	628	$1.56			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.	475	$1.64			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
	TCA9534ADWT IC I/O EXPANDER I2C 8B 16SOIC Texas Instruments	137	$1.70			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
	PCA9535CD,118 IC I/O EXPANDER I2C 16B 24SOIC NXP USA Inc.	113	$1.73			Tape & Reel (TR)	Obsolete	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
	PCF8574TS/3,118 IC I/O EXPANDER I2C 8B 20SSOP NXP USA Inc.	357	$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
	PCA9557DT IC I/O EXPANDER I2C 8B 16SOIC Texas Instruments	409	$1.88			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-SOIC (0.154", 3.90mm Width)	16-SOIC
	PCF8574ARGYR IC I/O EXPANDER I2C 8B 20VQFN Texas Instruments	389	$1.90			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)
	PCA9554APW,118 IC I/O EXPANDER I2C 8B 16TSSOP NXP USA Inc.	193	$1.99			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	247	$2.03			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.	126	$2.19		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
	PCA9535EDWR2G IC I/O EXPANDER 16B 24SOIC onsemi	294	$2.27			Tape & Reel (TR)	Obsolete	16	I²C, SMBus	Yes	POR	Push-Pull	10mA, 25mA	100 kHz	1.65V ~ 5.5V	-55°C ~ 125°C	Surface Mount	24-SOIC (0.295", 7.50mm Width)	24-SOIC
	PCA9535DBR IC I/O EXPANDER I2C 16B 24SSOP Texas Instruments	65	$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
	SX1512BIULTRT IC GPIO EXPANDER I2C 16CH 28QFN Semtech Corporation	525	$0.00			Tape & Reel (TR)	Obsolete	16	SPI	No	-	Open Drain, Push-Pull	8mA, 15mA	20 MHz	1.425V ~ 3.6V	-40°C ~ 85°C	Surface Mount	28-UFQFN Exposed Pad	28-QFN-UT (4x4)
	PCA9538PW IC I/O EXPANDER I2C 8B 16TSSOP Texas Instruments	412	$2.36			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
	PCA6107DW IC I/O EXPANDER I2C 8B 18SOIC Texas Instruments	319	$2.51			Tube	Obsolete	8	I²C, SMBus	Yes	POR	Open Drain, Push-Pull	10mA, 25mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	18-SOIC (0.295", 7.50mm Width)	18-SOIC
	LM8335TLE/NOPB IC GPIO EXPANDER 16DSBGA Texas Instruments	255	$3.04			Tape & Reel (TR)	Active	8	MIPI® RFFE	No	POR	Open Drain	-	26 MHz	1.8V ~ 3.3V	0°C ~ 85°C	Surface Mount	16-WFBGA, DSBGA	16-DSBGA (2.5x2.12)
	PCA9654EDR2G IC I/O EXPANDER 8BIT I2C 16SOIC onsemi	99	$3.99			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.	334	$1.32			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
	SX1502I087TRT IC GPIO EXPANDER I2C 8CH 20QFN Semtech Corporation	707	$1.29			Tape & Reel (TR)	Active	8	I²C	Yes	POR	Push-Pull	8mA, 24mA	400 kHz	1.2V ~ 5.5V	-40°C ~ 85°C	Surface Mount	20-UFQFN Exposed Pad	20-QFN-UT (3x3)