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
	MAX7325AEG+ IC I/O EXPANDER I2C 8B 24QSOP Analog Devices Inc./Maxim Integrated	176	$4.73			Tube	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
	MCP25050-E/P IC I/O EXPANDER CAN 8B 14DIP Microchip Technology	64	$5.96			Tube	Active	8	CAN V2.0b	No	ADC, EEPROM, POR, PWM	Push-Pull	25mA	25 MHz	4.5V ~ 5.5V	-40°C ~ 125°C	Through Hole	14-DIP (0.300", 7.62mm)	14-PDIP
	PI4IOE5V9557LEX IC I/O EXPANDER 8BIT I2C 16TSSOP Diodes Incorporated	539	$1.34			Tape & Reel (TR)	Active	8	I²C	Yes	-	-	-	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP
	PCA9557D112 IC I/O EXPANDER I2C 8B 16SOIC NXP USA Inc.	283	$0.00			Bulk	Active	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
	PCA8574TS112 PARALLEL I/O PORT 8-BIT 8 I/O NXP USA Inc.	60	$0.00			Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-
	PI4IOE5V9539LEX IC I/O EXPANDER 16B I2C 24TSSOP Diodes Incorporated	302	$1.56			Tape & Reel (TR)	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
	PCA9554DB112 IC I/O EXPANDER I2C 8B 16SSOP NXP USA Inc.	280	$0.00			Bulk	Active	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
	PCA9538ABS,128 IC I/O EXPANDER I2C 8B 16HVQFN NXP USA Inc.	293	$0.69			Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-
	PCA9670PW112 PARALLEL I/O PORT 8-BIT 8 I/O NXP USA Inc.	498	$0.00			Bulk	Active	8	I²C	No	POR	Push-Pull	100µA, 25mA	1 MHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP
	CAT9555YI PARALLEL I/O PORT, 16-BIT onsemi	394	$0.00			Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-
	PCA9555PW/S911118 PARALLEL I/O PORT 16-BIT NXP USA Inc.	519	$0.00			Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-
	PCA9701D118 IC SPI GPI 16-BIT 24-SOIC NXP USA Inc.	232	$0.00			Bulk	Active	16 (Input Only)	SPI Serial	Yes	-	Push-Pull	-	5 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	Surface Mount	24-SOIC (0.295", 7.50mm Width)	24-SO
	TCA9536BDTMR REMOTE 4-BIT IC AND SMBUS I/O EX Texas Instruments	263	$1.56			Tape & Reel (TR)	Active	4	I²C, SMBus	Yes	POR	Open Drain	10mA, 25mA	1 MHz	1.65V ~ 5.5V	-40°C ~ 125°C	Surface Mount	8-XFDFN Exposed Pad	8-X2SON (1.35x0.8)
	TCA9536DTMR REMOTE 4-BIT IC AND SMBUS I/O EX Texas Instruments	292	$1.56			Tape & Reel (TR)	Active	4	I²C, SMBus	Yes	POR	Open Drain	10mA, 25mA	1 MHz	1.65V ~ 5.5V	-40°C ~ 125°C	Surface Mount	8-XFDFN Exposed Pad	8-X2SON (1.35x0.8)
	TCA9537DGSR REMOTE 4-BIT IC AND SMBUS I/O EX Texas Instruments	628	$1.53			Tape & Reel (TR)	Active	4	I²C	Yes	POR	Open Drain	10mA, 25mA	1 MHz	1.65V ~ 5.5V	-40°C ~ 125°C	Surface Mount	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	10-VSSOP
	PCA9500PW,112 IC I/O EXPANDER I2C 8B 16TSSOP Freescale Semiconductor	363	$0.00			Tube	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
	PCA9557DR IC I/O EXPANDER I2C 8B 16SOIC Texas Instruments	223	$1.58			Tape & Reel (TR)	Active	8	I²C, SMBus	No	POR	Open Drain, Push-Pull	10mA, 25mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-SOIC (0.154", 3.90mm Width)	16-SOIC
	LC709006A-E I/O-EXPANDER FOR MICROCONTROLLER Sanyo	218	$0.00			Tube	Obsolete	24	Parallel	No	-	CMOS, Open-Drain	-	-	2V ~ 6V	-40°C ~ 85°C	Surface Mount	36-SOP (0.311", 7.90mm Width)	36-MFPSDJ
	MAX7311EAG 2-WIRE-INTERFACED 16 BIT I/O POR Analog Devices Inc./Maxim Integrated	272	$0.00			Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-
	M62320P#TF5J 8-BIT I/O EXPANDER FOR I2C BUS Renesas Electronics America Inc	128	$0.00			Bulk	Active	-	-	-	-	-	-	-	-	-	-	-	-