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
	PCA9701PW,118 IC SPI GPI 16-BIT 24-TSSOP NXP USA Inc.	45	$2.24			Tape & Reel (TR)	Active	16 (Input Only)	SPI Serial	Yes	-	Push-Pull	-	5 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	PCA9535CPW,118 IC I/O EXPANDER I2C 16B 24TSSOP NXP USA Inc.	311	$2.48			Tape & Reel (TR)	Active	16	I²C, SMBus	Yes	POR	Open Drain	10mA, 25mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	PCA9534DB IC I/O EXPANDER I2C 8B 16SSOP Texas Instruments	232	$2.44			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
	PCA9502BS,128 IC I/O EXPANDER I2C/SPI 24HVQFN NXP USA Inc.	295	$2.89			Tape & Reel (TR)	Active	8	I²C, SPI	Yes	-	Push-Pull	-	400 kHz	2.3V ~ 3.6V	-40°C ~ 85°C	Surface Mount	24-VFQFN Exposed Pad	24-HVQFN (4x4)
	PCA9501PW,118 IC I/O EXPANDER I2C 8B 20TSSOP NXP USA Inc.	108	$2.96			Tape & Reel (TR)	Active	8	I²C, SMBus	Yes	EEPROM	Push-Pull	100µA, 25mA	400 kHz	2.5V ~ 3.6V	-40°C ~ 85°C	Surface Mount	20-TSSOP (0.173", 4.40mm Width)	20-TSSOP
	PCA9501PW,112 IC I/O EXPANDER I2C 8B 20TSSOP NXP USA Inc.	282	$0.91			Tube	Obsolete	8	I²C, SMBus	Yes	EEPROM, POR	Push-Pull	100µA, 25mA	400 kHz	2.5V ~ 3.6V	-40°C ~ 85°C	Surface Mount	20-TSSOP (0.173", 4.40mm Width)	20-TSSOP
	PCA9555D,112 IC I/O EXPANDER I2C 16B 24SOIC NXP USA Inc.	310	$2.75			Bulk	Active	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
	PCA9673PW,118 IC I/O EXPANDER I2C 16B 24TSSOP NXP USA Inc.	226	$2.85			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-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	PCA9539RPW/Q900J 16-BIT I2C-BUS AND SMBUS LOW POW NXP USA Inc.	98	$3.01		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
	PCF8575TS/1,112 IC I/O EXPANDER I2C 16B 24SSOP NXP USA Inc.	240	$3.07			Tube	Active	16	I²C	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	2.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-SSOP (0.209", 5.30mm Width)	24-SSOP
	PCF8575DB IC I/O EXPANDER I2C 16B 24SSOP Texas Instruments	172	$4.01			Bulk	Active	16	I²C, SMBus	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	2.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-SSOP (0.209", 5.30mm Width)	24-SSOP
	PCA9575HF,118 IC I/O EXPANDER I2C 16B 24HWQFN NXP USA Inc.	288	$2.53			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-WFQFN Exposed Pad	24-HWQFN (4x4)
	PCA8574TS112 PARALLEL I/O PORT 8-BIT 8 I/O NXP USA Inc.	260	$0.00			Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-
	PCA9554DB112 IC I/O EXPANDER I2C 8B 16SSOP NXP USA Inc.	65	$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-SSOP (0.209", 5.30mm Width)	16-SSOP
	PCA9538ABS,128 IC I/O EXPANDER I2C 8B 16HVQFN NXP USA Inc.	361	$0.69			Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-
	PCA9670PW112 PARALLEL I/O PORT 8-BIT 8 I/O NXP USA Inc.	579	$0.00			Bulk	Active	8	I²C	No	POR	Push-Pull	100µA, 25mA	1 MHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP
	CAT9555YI PARALLEL I/O PORT, 16-BIT onsemi	469	$0.00			Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-
	PCA9555PW/S911118 PARALLEL I/O PORT 16-BIT NXP USA Inc.	12	$0.00			Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-
	TCA9537DGSR REMOTE 4-BIT IC AND SMBUS I/O EX Texas Instruments	496	$1.54			Tape & Reel (TR)	Active	4	I²C	Yes	POR	Open Drain	10mA, 25mA	1 MHz	1.65V ~ 5.5V	-40°C ~ 125°C	Surface Mount	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-VSSOP
	PCA9500PW,112 IC I/O EXPANDER I2C 8B 16TSSOP Freescale Semiconductor	367	$0.00			Tube	Active	8	I²C, SMBus	No	EEPROM, POR	Push-Pull	100µA, 25mA	400 kHz	2.5V ~ 3.6V	-40°C ~ 85°C	Surface Mount	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP