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
	PCF8575CPWR IC I/O EXPANDER I2C 16B 24TSSOP Texas Instruments	168	$1.82			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-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	PCF8575CDBR IC I/O EXPANDER I2C 16B 24SSOP Texas Instruments	147	$1.85			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 (0.209", 5.30mm Width)	24-SSOP
	MAX7315ATE+T IC I/O EXPANDER I2C 8B 16TQFN Analog Devices Inc./Maxim Integrated	166	$2.22			Tape & Reel (TR)	Active	8	I²C, SMBus	Yes	PWM	Open Drain	50mA	400 kHz	2V ~ 3.6V	-40°C ~ 125°C	Surface Mount	16-WFQFN Exposed Pad	16-TQFN (3x3)
	MAX7315AEE+T IC I/O EXPANDER I2C 8B 16QSOP Analog Devices Inc./Maxim Integrated	278	$2.20			Tape & Reel (TR)	Active	8	I²C, SMBus	Yes	PWM	Open Drain	50mA	400 kHz	2V ~ 3.6V	-40°C ~ 125°C	Surface Mount	16-SSOP (0.154", 3.90mm Width)	16-QSOP
	MAX7323AEE+T IC I/O EXPANDER I2C 4B 16QSOP Analog Devices Inc./Maxim Integrated	223	$2.44			Tape & Reel (TR)	Active	4	I²C	Yes	POR	Open Drain, Push-Pull	20mA	400 kHz	1.71V ~ 5.5V	-40°C ~ 125°C	Surface Mount	16-SSOP (0.154", 3.90mm Width)	16-QSOP
	MAX7323ATE+T IC I/O EXPANDER I2C 4B 16TQFN Analog Devices Inc./Maxim Integrated	289	$2.40			Tape & Reel (TR)	Active	4	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)
	MAX7321AEE+T IC I/O EXPANDER I2C 8B 16QSOP Analog Devices Inc./Maxim Integrated	218	$2.45			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-SSOP (0.154", 3.90mm Width)	16-QSOP
	MAX7319ATE+T IC I/O EXPANDER I2C 8B 16TQFN Analog Devices Inc./Maxim Integrated	389	$2.45			Tape & Reel (TR)	Active	8 (Input Only)	I²C	Yes	POR	-	25mA	400 kHz	1.71V ~ 5.5V	-40°C ~ 125°C	Surface Mount	16-WFQFN Exposed Pad	16-TQFN (3x3)
	MAX7322ATE+T IC I/O EXPANDER I2C 4B 16TQFN Analog Devices Inc./Maxim Integrated	252	$2.57			Tape & Reel (TR)	Active	4	I²C	Yes	POR	-	20mA	400 kHz	1.7V ~ 5.5V	-40°C ~ 125°C	Surface Mount	16-WFQFN Exposed Pad	16-TQFN (3x3)
	PCA9539BS,118 IC I/O EXPANDER I2C 16B 24HVQFN NXP USA Inc.	194	$2.53			Tape & Reel (TR)	Last Time Buy	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)
	MAX7324AEG+T IC I/O EXPANDER I2C 8B 24QSOP Analog Devices Inc./Maxim Integrated	267	$2.60			Tape & Reel (TR)	Active	8	I²C	Yes	POR	Push-Pull	20mA	400 kHz	1.71V ~ 5.5V	-40°C ~ 125°C	Surface Mount	24-SSOP (0.154", 3.90mm Width)	24-QSOP
	MAX7324ATG+T IC I/O EXPANDER I2C 8B 24TQFN Analog Devices Inc./Maxim Integrated	362	$2.67			Tape & Reel (TR)	Active	8	I²C	Yes	POR	Push-Pull	20mA	400 kHz	1.71V ~ 5.5V	-40°C ~ 125°C	Surface Mount	24-WFQFN Exposed Pad	24-TQFN (4x4)
	MAX7327AATG+T IC I/O EXPANDER I2C 24TQFN Analog Devices Inc./Maxim Integrated	395	$2.30			Tape & Reel (TR)	Active	4	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-EP (3.5x3.5)
	PCA9535PW IC I/O EXPANDER I2C 16B 24TSSOP Texas Instruments	342	$2.66			Bulk	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
	TCA6416PWT IC I/O EXPANDER I2C 16B 24TSSOP Texas Instruments	36	$2.01			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-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	TCA6416RTWT IC I/O EXPANDER I2C 16B 24WQFN Texas Instruments	51	$2.00			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)
	TCA6416PW IC I/O EXPANDER I2C 16B 24TSSOP Texas Instruments	133	$2.01			Bulk	Not For New Designs	16	I²C	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	1.65V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	MAX7325AEG+T IC I/O EXPANDER I2C 8B 24QSOP Analog Devices Inc./Maxim Integrated	74	$2.65			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-SSOP (0.154", 3.90mm Width)	24-QSOP
	PCF8575CDW IC I/O EXPANDER I2C 16B 24SOIC Texas Instruments	111	$2.75			Bulk	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
	PCA9539RBS,118 IC I/O EXPANDER I2C 16B 24HVQFN NXP USA Inc.	18	$2.80			Tape & Reel (TR)	Last Time Buy	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)