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
	PCA9554D,112 IC I/O EXPANDER I2C 8B 16SOIC NXP USA Inc.	568	$0.00			Tube	Obsolete	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-SO
	PCA9554DB,112 IC I/O EXPANDER I2C 8B 16SSOP NXP USA Inc.	479	$0.00			Tube	Obsolete	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
	PCF8574AP,112 IC I/O EXPANDER I2C 8B 16DIP NXP USA Inc.	201	$0.00			Tube	Obsolete	8	I²C	Yes	POR	Push-Pull	300µA, 25mA	100 kHz	2.5V ~ 6V	-40°C ~ 85°C	Through Hole	16-DIP (0.300", 7.62mm)	16-DIP
	PCF8574P,112 IC I/O EXPANDER I2C 8B 16DIP NXP USA Inc.	384	$0.00			Tube	Obsolete	8	I²C	Yes	POR	Push-Pull	300µA, 25mA	100 kHz	2.5V ~ 6V	-40°C ~ 85°C	Through Hole	16-DIP (0.300", 7.62mm)	16-DIP
	PCA9555DB,112 IC I/O EXPANDER I2C 16B 24SSOP NXP USA Inc.	944	$1.02			Tube	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
	PCA9557PW,112 IC I/O EXPANDER I2C 8B 16TSSOP NXP USA Inc.	13	$0.55			Tube	Obsolete	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
	PCF8574AT/3,512 IC I/O EXPANDER I2C 8B 16SOIC NXP USA Inc.	440	$0.69			Tube	Obsolete	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
	PCA9501D,112 IC I/O EXPANDER I2C 8B 20SOIC NXP USA Inc.	212	$0.00			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-SOIC (0.295", 7.50mm Width)	20-SO
	PCF8575CTS/1,112 IC I/O EXPANDER I2C 16B 24SSOP NXP USA Inc.	480	$1.16			Tube	Obsolete	16	I²C	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-SSOP (0.209", 5.30mm Width)	24-SSOP
	PCA9502BS,151 IC I/O EXPANDER I2C/SPI 24HVQFN NXP USA Inc.	990	$0.69			Tray	Obsolete	8	I²C, SPI	No	-	Push-Pull	-	400 kHz	2.3V ~ 3.6V	-40°C ~ 85°C	Surface Mount	24-VFQFN Exposed Pad	24-HVQFN (4x4)
	PCA9534PW,112 IC I/O EXPANDER I2C 8B 16TSSOP NXP USA Inc.	44	$0.68			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
	PCA9536D,112 IC I/O EXPANDER I2C 4B 8SOIC NXP USA Inc.	2,002	$0.47			Tube	Obsolete	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-SO
	PCA9538PW,112 IC I/O EXPANDER I2C 8B 16TSSOP NXP USA Inc.	23	$0.67			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
	PCA9539PW,112 IC I/O EXPANDER I2C 16B 24TSSOP NXP USA Inc.	460	$0.95			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
	PCA8575PW,112 IC I/O EXPANDER I2C 16B 24TSSOP NXP USA Inc.	828	$0.86			Tube	Obsolete	16	I²C	Yes	POR	Push-Pull	100µA, 25mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	PCA9502BS,157 IC I/O EXPANDER I2C/SPI 24HVQFN NXP USA Inc.	949	$1.00			Tray	Obsolete	8	I²C, SPI	No	-	Push-Pull	-	400 kHz	2.3V ~ 3.6V	-40°C ~ 85°C	Surface Mount	24-VFQFN Exposed Pad	24-HVQFN (4x4)
	PCA9674APW,112 IC I/O EXPANDER I2C 8B 16TSSOP NXP USA Inc.	676	$0.71			Tube	Obsolete	8	I²C	Yes	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
	PCA9674PW,112 IC I/O EXPANDER I2C 8B 16TSSOP NXP USA Inc.	357	$0.00			Tube	Obsolete	8	I²C	Yes	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
	PCA9670PW,112 IC I/O EXPANDER I2C 8B 16TSSOP NXP USA Inc.	101	$0.00			Tube	Obsolete	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
	PCA9671PW,112 IC I/O EXPANDER I2C 16B 24TSSOP NXP USA Inc.	382	$1.06			Tube	Obsolete	16	I²C	No	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