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
	MCP23018T-E/MJ IC I/O EXPANDER I2C 16B 24QFN Microchip Technology	239	$2.03			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-VFQFN Exposed Pad	24-QFN (4x4)
	MCP23S08-E/SO IC I/O EXPANDER SPI 8B 18SOIC Microchip Technology	115	$1.53			Tube	Active	8	SPI	Yes	POR	Push-Pull	25mA	10 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	18-SOIC (0.295", 7.50mm Width)	18-SOIC
	MCP23S08-E/SS IC I/O EXPANDER SPI 8B 20SSOP Microchip Technology	613	$1.52			Tube	Active	8	SPI	Yes	POR	Push-Pull	25mA	10 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	20-SSOP (0.209", 5.30mm Width)	20-SSOP
	PCA9655EMTTXG IC I/O EXPANDER I2C 16B QFN-24 onsemi	178	$3.07			Tape & Reel (TR)	Active	16	I²C, SMBus	Yes	POR	Push-Pull	42mA	100 kHz	1.65V ~ 5.5V	-55°C ~ 125°C	Surface Mount	24-WFQFN Exposed Pad	24-QFN (4x4)
	MCP23017-E/SO IC I/O EXPANDER I2C 16B 28SOIC Microchip Technology	456	$1.60			Tube	Active	16	I²C	Yes	POR	Push-Pull	25mA	1.7 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	28-SOIC (0.295", 7.50mm Width)	28-SOIC
	MCP23009-E/MG IC I/O EXPANDER I2C 8B 16QFN Microchip Technology	70	$1.62			Tube	Active	8	I²C	Yes	POR	Open Drain	25mA	3.4 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	16-VFQFN Exposed Pad	16-QFN (3x3)
	MCP23S18T-E/MJ IC I/O EXPANDER SPI 16B 24QFN Microchip Technology	225	$2.11			Tape & Reel (TR)	Active	16	SPI	Yes	-	Open Drain	25mA	10 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	24-VFQFN Exposed Pad	24-QFN (4x4)
	MCP23S08-E/ML IC I/O EXPANDER SPI 8B 20QFN Microchip Technology	109	$1.64			Tube	Active	8	SPI	Yes	POR	Push-Pull	25mA	10 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	20-VFQFN Exposed Pad	20-QFN (4x4)
	PCA9655EDTR2G IC I/O EXPANDER I2C 16B 24-TSSOP onsemi	13	$3.16			Tape & Reel (TR)	Active	16	I²C, SMBus	Yes	POR	Push-Pull	42mA	100 kHz	1.65V ~ 5.5V	-55°C ~ 125°C	Surface Mount	24-TSSOP (0.173", 4.40mm Width)	24-TSSOP
	MCP23017-E/SP IC I/O EXPANDER I2C 16B 28SDIP Microchip Technology	52	$1.67			Tube	Active	16	I²C	Yes	POR	Push-Pull	25mA	1.7 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Through Hole	28-DIP (0.300", 7.62mm)	28-SPDIP
	MCP23017-E/SS IC I/O EXPANDER I2C 16B 28SSOP Microchip Technology	174	$1.67			Tube	Active	16	I²C	Yes	POR	Push-Pull	25mA	1.7 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	28-SSOP (0.209", 5.30mm Width)	28-SSOP
	MCP23S17-E/SO IC I/O EXPANDER SPI 16B 28SOIC Microchip Technology	473	$1.65			Tube	Active	16	SPI	Yes	POR	Push-Pull	25mA	10 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	28-SOIC (0.295", 7.50mm Width)	28-SOIC
	MCP23S09-E/MG IC I/O EXPANDER SPI 8B 16QFN Microchip Technology	349	$1.70			Tube	Active	8	SPI	Yes	-	Open Drain	25mA	10 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	16-VFQFN Exposed Pad	16-QFN (3x3)
	SX1509BIULTRT IC GPIO EXPANDER I2C 16CH 28QFN Semtech Corporation	26	$3.51			Tape & Reel (TR)	Active	16	I²C	Yes	Keypad Controller, LED Output, POR	Open Drain, Push-Pull	8mA, 15mA	400 kHz	1.425V ~ 3.6V	-40°C ~ 85°C	Surface Mount	28-UFQFN Exposed Pad	28-QFN-UT (4x4)
	SX1509QBIULTRT IC GPIO EXPANDER I2C 16CH 28QFN Semtech Corporation	83	$3.52			Tape & Reel (TR)	Active	16	I²C	Yes	Keypad Controller, LED Output, POR	Open Drain, Push-Pull	8mA, 15mA	400 kHz	1.425V ~ 3.6V	-40°C ~ 85°C	Surface Mount	28-UFQFN Exposed Pad	28-QFN-UT (4x4)
	ADP5587ACPZ-R7 IC EXPANDER/KEYBOARD CTRLR Analog Devices Inc.	210	$3.29			Tape & Reel (TR)	Active	18	I²C	Yes	Keypad Controller, POR	Open Drain	-	400 kHz	1.65V ~ 3.6V	-40°C ~ 85°C	Surface Mount	24-WFQFN Exposed Pad, CSP	24-LFCSP-WQ (4x4)
	MCP23S17-E/SP IC I/O EXPANDER SPI 16B 28SDIP Microchip Technology	361	$1.74			Tube	Active	16	SPI	Yes	POR	Push-Pull	25mA	10 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Through Hole	28-DIP (0.300", 7.62mm)	28-SPDIP
	MCP23S17-E/SS IC I/O EXPANDER SPI 16B 28SSOP Microchip Technology	543	$1.77			Tube	Active	16	SPI	Yes	POR	Push-Pull	25mA	10 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	28-SSOP (0.209", 5.30mm Width)	28-SSOP
	MCP23017-E/ML IC I/O EXPANDER I2C 16B 28QFN Microchip Technology	333	$1.87			Tube	Active	16	I²C	Yes	POR	Push-Pull	25mA	1.7 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Surface Mount	28-VQFN Exposed Pad	28-QFN (6x6)
	MCP23016T-I/SO IC I/O EXPANDER I2C 16B 28SOIC Microchip Technology	139	$2.14			Tape & Reel (TR)	Active	16	I²C	Yes	POR	Push-Pull	25mA	400 kHz	2V ~ 5.5V	-40°C ~ 85°C	Surface Mount	28-SOIC (0.295", 7.50mm Width)	28-SOIC