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
	MAX16092UK+T IC SUPERVISOR LOW POWER SOT-23 Analog Devices Inc./Maxim Integrated	17	$0.00			Tape & Reel (TR)	Obsolete	8	2-Wire Serial, SMBus	Yes	POR	Open Drain	-	100 kHz	2.7V ~ 5.5V	-40°C ~ 85°C	Surface Mount	SC-74A, SOT-753	SOT-23-5
	MAX16092UK+ IC SUPERVISOR LOW POWER SOT-23 Analog Devices Inc./Maxim Integrated	606	$0.00			Tube	Obsolete	8	2-Wire Serial, SMBus	Yes	POR	Open Drain	-	100 kHz	2.7V ~ 5.5V	-40°C ~ 85°C	Surface Mount	SC-74A, SOT-753	SOT-23-5
	CAT9555HV6I-T2 IC I/O EXPANDER I2C 24TQFN onsemi	468	$0.00		CAT9555	Tape & Reel (TR)	Obsolete	16	I²C, SMBus	Yes	POR	Push-Pull	-	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-WFQFN Exposed Pad	24-TQFN (4x4)
	CAT9554WI-G IC I/O EXPANDER I2C 16SOIC onsemi	867	$0.67		CAT9554	Bulk	Obsolete	8	I²C, SMBus	Yes	POR	Push-Pull	-	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-SOIC (0.154", 3.90mm Width)	16-SOIC
	CAT9555HV6I IC I/O EXPANDER I2C 24TQFN onsemi	188	$0.00		CAT9555	Bulk	Obsolete	16	I²C, SMBus	Yes	POR	Push-Pull	-	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-WFQFN Exposed Pad	24-TQFN (4x4)
	PCA9554DTR2G IC I/O EXPANDER SMBUS 16TSSOP onsemi	229	$0.00			Tape & Reel (TR)	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
	PCF8574TS/3,112 IC I/O EXPANDER I2C 8B 20SSOP NXP USA Inc.	170	$0.00			Tube	Obsolete	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
	PCA9500D,112 IC I/O EXPANDER I2C 8B 16SOIC NXP USA Inc.	908	$0.86			Tube	Obsolete	8	I²C, SMBus	No	EEPROM, POR	Push-Pull	100µA, 25mA	400 kHz	2.5V ~ 3.6V	-40°C ~ 85°C	Surface Mount	16-SOIC (0.295", 7.50mm Width)	16-SO
	PCA9554AD,112 IC I/O EXPANDER I2C 8B 16SOIC NXP USA Inc.	834	$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-SOIC (0.295", 7.50mm Width)	16-SO
	PCA9554APW,112 IC I/O EXPANDER I2C 8B 16TSSOP NXP USA Inc.	1,075	$0.74			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
	PCA9554D,112 IC I/O EXPANDER I2C 8B 16SOIC NXP USA Inc.	213	$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.	71	$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
	PCA9557D,112 IC I/O EXPANDER I2C 8B 16SOIC NXP USA Inc.	552	$0.00			Tube	Obsolete	8	I²C, SMBus	No	POR	Open Drain, Push-Pull	10mA, 20mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-SOIC (0.154", 3.90mm Width)	16-SO
	PCF8574AP,112 IC I/O EXPANDER I2C 8B 16DIP NXP USA Inc.	160	$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.	391	$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.	776	$1.01			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.	1,065	$0.56			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.	88	$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
	PCA9554N,112 IC I/O EXPANDER I2C 8B 16DIP NXP USA Inc.	478	$0.00			Tube	Obsolete	8	I²C, SMBus	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Through Hole	16-DIP (0.300", 7.62mm)	16-DIP
	PCA9555N,112 IC I/O EXPANDER I2C 16B 24DIP NXP USA Inc.	188	$0.00			Tube	Obsolete	16	I²C, SMBus	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Through Hole	24-DIP (0.600", 15.24mm)	24-DIP