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
	PCF8574T/3,518 IC I/O EXPANDER I2C 8B 16SOIC NXP USA Inc.	141	$1.85			Tape & Reel (TR)	Active	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
	PCA9554PW,118 IC I/O EXPANDER I2C 8B 16TSSOP NXP USA Inc.	208	$1.96			Tape & Reel (TR)	Active	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
	PCA9536TK,118 IC I/O EXPANDER I2C 4B 8HVSON NXP USA Inc.	334	$1.63			Tape & Reel (TR)	Active	4	I²C, SMBus	No	POR	Push-Pull	10mA, 25mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	8-VFDFN Exposed Pad	8-HVSON (3x3)
	PCA6408APW,118 IC I/O EXPANDER 8BIT GP 16TSSOP NXP USA Inc.	444	$1.67			Tape & Reel (TR)	Active	8	I²C, SMBus	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	1.65V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP
	PCAL6524EVJ ULTRA LOW-VOLTAGE TRANSLATING 24 NXP USA Inc.	32	$2.10			Tape & Reel (TR)	Active	24	I²C	Yes	POR	Open Drain, Push-Pull	-	1 MHz	1.65V ~ 5.5V	-40°C ~ 85°C	Surface Mount	36-VFBGA	36-VFBGA (2.6x2.6)
	PCA6416AHF,128 IC I/O EXPANDER 16BIT 24HWQFN NXP USA Inc.	333	$1.67			Tape & Reel (TR)	Active	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-HWQFN (4x4)
	MCP23008-E/P IC I/O EXPANDER I2C 8B 18DIP Microchip Technology	172	$1.50			Tube	Active	8	I²C	Yes	POR	Push-Pull	25mA	1.7 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Through Hole	18-DIP (0.300", 7.62mm)	18-PDIP
	PCA9539AHF,128 IC I/O EXPANDER I2C 24HWQFN NXP USA Inc.	357	$2.45			Tape & Reel (TR)	Active	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-HWQFN (4x4)
	MCP23S08-E/P IC I/O EXPANDER SPI 8B 18DIP Microchip Technology	189	$1.59			Tube	Active	8	SPI	Yes	POR	Push-Pull	25mA	10 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	Through Hole	18-DIP (0.300", 7.62mm)	18-PDIP
	PCA9538ABSHP IC GPIO EXPANDER 8BIT 16HVQFN NXP USA Inc.	458	$1.80			Tape & Reel (TR)	Active	8	I²C, SMBus	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	1.65V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-VFQFN Exposed Pad	16-HVQFN (3x3)
	PCA9500PW,118 IC I/O EXPANDER I2C 8B 16TSSOP NXP USA Inc.	30	$2.82			Tape & Reel (TR)	Active	8	I²C, SMBus	No	EEPROM, POR	Push-Pull	100µA, 25mA	400 kHz	2.5V ~ 3.6V	-40°C ~ 85°C	Surface Mount	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP
	PCF8574T/3,512 IC I/O EXPANDER I2C 8B 16SOIC NXP USA Inc.	17	$1.86			Tube	Active	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
	MAX7317ATE+T IC I/O EXPANDER SPI 10B 16TQFN Analog Devices Inc./Maxim Integrated	315	$2.55			Tape & Reel (TR)	Active	10	SPI	No	-	Open Drain	20mA	-	2.25V ~ 3.6V	-40°C ~ 125°C	Surface Mount	16-WFQFN Exposed Pad	16-TQFN (3x3)
	MAX7321ATE+ IC I/O EXPANDER I2C 8B 16TQFN Analog Devices Inc./Maxim Integrated	125	$2.88			Tube	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)
	MAX7320AEE+ IC I/O EXPANDER I2C 8B 16QSOP Analog Devices Inc./Maxim Integrated	140	$2.89			Tube	Active	8 (Output Only)	I²C	No	POR	Open Drain, Push-Pull	25mA	400 kHz	1.71V ~ 5.5V	-40°C ~ 125°C	Surface Mount	16-SSOP (0.154", 3.90mm Width)	16-QSOP
	PCF8575DW IC I/O EXPANDER I2C 16B 24SOIC Texas Instruments	142	$3.43			Tube	Active	16	I²C, SMBus	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	24-SOIC (0.295", 7.50mm Width)	24-SOIC
	MCP25020-I/SL IC I/O EXPANDER CAN 8B 14SOIC Microchip Technology	142	$3.55			Tube	Active	8	CAN V2.0b	No	EEPROM, POR, PWM	Push-Pull	25mA	25 MHz	2.75V ~ 5.5V	-40°C ~ 85°C	Surface Mount	14-SOIC (0.154", 3.90mm Width)	14-SOIC
	MAX7323ATE+ IC I/O EXPANDER I2C 4B 16TQFN Analog Devices Inc./Maxim Integrated	105	$4.27			Tube	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)
	MAX7319ATE+ IC I/O EXPANDER I2C 8B 16TQFN Analog Devices Inc./Maxim Integrated	200	$4.39			Bulk	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)
	MAX7321AEE+ IC I/O EXPANDER I2C 8B 16QSOP Analog Devices Inc./Maxim Integrated	166	$4.44			Tube	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