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
	PCA9555DB IC I/O EXPANDER I2C 16B 24SSOP Texas Instruments	28	$2.85			Bulk	Obsolete	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
	PCA9555PW IC I/O EXPANDER I2C 16B 24TSSOP Texas Instruments	255	$2.85			Tube	Obsolete	16	I²C, SMBus	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	PCAL6408AHK LOW-VOLTAGE TRANSLATING, 8-BIT I NXP USA Inc.	341	$0.00			Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-
	PCAL6408AHK115 LOW-VOLTAGE TRANSLATING, 8-BIT I NXP USA Inc.	386	$0.00			Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-
	PCA9554D 8-BIT I2C-BUS AND SMBUS I/O PORT NXP USA Inc.	584	$0.00			Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-
	PCA9701PW 18 V TOLERANT SPI 16-BIT/8-BIT G Freescale Semiconductor	342	$0.00			Bulk	Active	16 (Input Only)	SPI Serial	Yes	-	Open Drain	5mA, 6mA	5 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	PCA9500PW PARALLEL I/O PORT, 8-BIT, 8 I/O, NXP USA Inc.	252	$0.00			Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-
	PCA9501PW PARALLEL I/O PORT, 8-BIT, 8 I/O, NXP USA Inc.	272	$0.00			Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-
	PCA9538PWG4 PCA9538 REMOTE 8-BIT I2C AND SMB Burr Brown	494	$0.00			Bulk	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
	PCA9539PW PCA9539 REMOTE 16-BIT I2C AND SM Burr Brown	312	$0.00			Bulk	Active	16	I²C, SMBus	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	PCA9539PW/Q900,118 IC I2C BUS/SMBUS 16BIT 24TSSOP NXP USA Inc.	248	$2.19		Automotive, AEC-Q100	Tape & Reel (TR)	Active	16	I²C, SMBus	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	3V ~ 5.5V	-40°C ~ 125°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	PCA9535HFHP 16-BIT I2C-BUS AND SMBUS, LOW PO NXP USA Inc.	342	$2.21			Tape & Reel (TR)	Active	16	I²C, SMBus	Yes	POR	Open Drain	160mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-WFQFN Exposed Pad	24-HWQFN (4x4)
	PCA9535HF,118 IC I/O EXPANDER I2C 16B 24HWQFN NXP USA Inc.	315	$2.25			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-WFQFN Exposed Pad	24-HWQFN (4x4)
	PCA9575PW1,118 IC I/O EXPANDER I2C 16B 24TSSOP NXP USA Inc.	246	$2.24			Tape & Reel (TR)	Active	16	I²C, SMBus	Yes	POR	Push-Pull	1mA, 3mA	400 kHz	1.1V ~ 3.6V	-40°C ~ 85°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	PCA9555BSHP IC I/O EXPANDER I2C 16B 24HVQFN NXP USA Inc.	112	$2.45			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-VFQFN Exposed Pad	24-HVQFN (4x4)
	PCA9539RPW,118 IC I/O EXPANDER I2C 16B 24TSSOP NXP USA Inc.	94	$2.51			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-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	PCAL9539AHF,128 IC I/O EXPANDER 16BIT 24HWQFN NXP USA Inc.	561	$1.06		Agile	Tape & Reel (TR)	Active	16	I²C	Yes	POR	Open Drain, Push-Pull	10mA, 25mA	400 kHz	1.65V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-WFQFN Exposed Pad	24-HWQFN (4x4)
	PCA9673BS,118 IC I/O EXPANDER I2C 16B 24HVQFN NXP USA Inc.	146	$2.76			Tape & Reel (TR)	Active	16	I²C	Yes	POR	Push-Pull	100µA, 25mA	1 MHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-VFQFN Exposed Pad	24-HVQFN (4x4)
	PCA9506DGG,512 PARALLEL I/O PORT, 40-BIT, 8 I/O NXP USA Inc.	127	$3.13			Tube	Obsolete	40	I²C	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	56-TFSOP (0.240", 6.10mm Width)	56-TSSOP
	PCA9505DGGY LCD DRIVER NXP USA Inc.	183	$4.31			Tape & Reel (TR)	Active	40	I²C	Yes	POR	Push-Pull	10mA, 15mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	56-TFSOP (0.240", 6.10mm Width)	56-TSSOP