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
	PCA9539DGVR IC I/O EXPANDER I2C 16B 24TVSOP Texas Instruments	590	$1.12			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-TFSOP (0.173", 4.40mm Width)	24-TVSOP
	PI4IOE5V9555LE IC I/O EXPANDER 16B I2C 24TSSOP Diodes Incorporated	733	$1.36			Tube	Active	16	I²C	Yes	-	-	-	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	PCA9555DGVR IC I/O EXPANDER I2C 16B 24TVSOP Texas Instruments	34	$1.18			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-TFSOP (0.173", 4.40mm Width)	24-TVSOP
	NCT5655Y SMBUS-GPIO EXPANDER; 16 GPIO PIN Nuvoton Technology Corporation	509	$1.43			Tray	Active	16	I²C, SMBus	Yes	POR	Open Drain	-	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-WFQFN Exposed Pad	24-QFN (4x4)
	LM8335TLX/NOPB IC GPIO EXPANDER 16DSBGA Texas Instruments	616	$1.33			Tape & Reel (TR)	Active	8	MIPI® RFFE	No	POR	Open Drain	-	26 MHz	1.8V ~ 3.3V	-30°C ~ 85°C	Surface Mount	16-WFBGA, DSBGA	16-DSBGA (2.5x2.12)
	PCA9535RTWR IC I/O EXPANDER I2C 16B 24WQFN Texas Instruments	108	$1.35			Tape & Reel (TR)	Not For New Designs	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-WQFN (4x4)
	MAX7325ATG+T IC I/O EXPANDER I2C 8B 24TQFN Analog Devices Inc./Maxim Integrated	181	$1.53			Tape & Reel (TR)	Active	16 (8 Output Only)	I²C	Yes	POR	Open Drain, Push-Pull	20mA	400 kHz	1.71V ~ 5.5V	-40°C ~ 125°C	Surface Mount	24-WFQFN Exposed Pad	24-TQFN (4x4)
	NCT5655W SMBUS-GPIO EXPANDER; 16 GPIO PIN Nuvoton Technology Corporation	8	$1.54			Tube	Active	16	I²C, SMBus	Yes	LED Output(s), POR	Open Drain	-	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	MAX7321ATE+T IC I/O EXPANDER I2C 8B 16TQFN Analog Devices Inc./Maxim Integrated	402	$1.60			Tape & Reel (TR)	Active	8	I²C	Yes	POR	Open Drain, Push-Pull	20mA	400 kHz	1.71V ~ 5.5V	-40°C ~ 125°C	Surface Mount	16-WFQFN Exposed Pad	16-TQFN (3x3)
	PCF8575CDGVR IC I/O EXPANDER I2C 16B 24TVSOP Texas Instruments	257	$1.44			Tape & Reel (TR)	Active	16	I²C, SMBus	Yes	POR	Open Drain	10mA, 25mA	400 kHz	4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-TFSOP (0.173", 4.40mm Width)	24-TVSOP
	PCF8575CRGER IC I/O EXPANDER I2C 16B 24VQFN Texas Instruments	62	$1.41			Tape & Reel (TR)	Active	16	I²C, SMBus	Yes	POR	Open Drain	10mA, 25mA	400 kHz	4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-VFQFN Exposed Pad	24-VQFN (4x4)
	MAX7329AWE+T IC I/O EXPANDER I2C 8B 16SOIC Analog Devices Inc./Maxim Integrated	200	$1.67			Tape & Reel (TR)	Active	8	I²C	Yes	POR	Open Drain	25mA	100 kHz	2.5V ~ 5.5V	-40°C ~ 125°C	Surface Mount	16-SOIC (0.295", 7.50mm Width)	16-SOIC
	MCP23018T-E/SS IC I/O EXPANDER I2C 16B 24SSOP Microchip Technology	270	$2.24			Tape & Reel (TR)	Active	16	I²C	Yes	POR	Open Drain	25mA	3.4 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	24-SSOP (0.209", 5.30mm Width)	24-SSOP
	PCF8575DGVR IC I/O EXPANDER I2C 16B 24TVSOP Texas Instruments	309	$1.48			Tape & Reel (TR)	Active	16	I²C, SMBus	Yes	POR	Push-Pull	1mA, 25mA	400 kHz	2.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-TFSOP (0.173", 4.40mm Width)	24-TVSOP
	PCF8575DBQR IC I/O EXPANDER I2C 16B 24QSOP Texas Instruments	233	$1.62			Tape & Reel (TR)	Active	16	I²C, SMBus	Yes	POR	Push-Pull	1mA, 25mA	400 kHz	2.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-SSOP (0.154", 3.90mm Width)	24-SSOP
	PCA9539BSHP IC I2C BUS/SMBUS 16BIT 24HVQFN NXP USA Inc.	3	$1.93			Tape & Reel (TR)	Last Time Buy	16	I²C	Yes	POR	Open Drain	50mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-VFQFN Exposed Pad	24-HVQFN (4x4)
	TCA6416RTWR IC I/O EXPANDER I2C 16B 24WQFN Texas Instruments	354	$1.85			Tape & Reel (TR)	Not For New Designs	16	I²C, SMBus	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	1.65V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-WFQFN Exposed Pad	24-WQFN (4x4)
	MCP23016T-I/SS IC I/O EXPANDER I2C 16B 28SSOP Microchip Technology	255	$2.04			Tape & Reel (TR)	Active	16	I²C	Yes	POR	Push-Pull	25mA	400 kHz	2V ~ 5.5V	-40°C ~ 85°C	Surface Mount	28-SSOP (0.209", 5.30mm Width)	28-SSOP
	PCF8575CDBQR IC I/O EXPANDER I2C 16B 24QSOP Texas Instruments	47	$1.83			Tape & Reel (TR)	Active	16	I²C, SMBus	Yes	POR	Open Drain	10mA, 25mA	400 kHz	4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-SSOP (0.154", 3.90mm Width)	24-SSOP
	PCF8575CDWR IC I/O EXPANDER I2C 16B 24SOIC Texas Instruments	456	$1.81			Tape & Reel (TR)	Active	16	I²C, SMBus	Yes	POR	Open Drain	10mA, 25mA	400 kHz	4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-SOIC (0.295", 7.50mm Width)	24-SOIC