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
	PCA9538D,118 IC I/O EXPANDER I2C 8B 16SOIC NXP USA Inc.	824	$0.68			Tape & Reel (TR)	Obsolete	8	I²C, SMBus	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	16-SOIC (0.295", 7.50mm Width)	16-SO
	PCA9554ATS,118 IC I/O EXPANDER I2C 8B 20SSOP NXP USA Inc.	311	$0.00			Tape & Reel (TR)	Obsolete	8	I²C, SMBus	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	20-LSSOP (0.173", 4.40mm Width)	20-SSOP
	PCA9554TS,118 IC I/O EXPANDER I2C 8B 20SSOP NXP USA Inc.	624	$0.67			Tape & Reel (TR)	Obsolete	8	I²C, SMBus	Yes	POR	Push-Pull	10mA, 25mA	400 kHz	2.3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	20-LSSOP (0.173", 4.40mm Width)	20-SSOP
	JLC1562BFELG IC BUS INTRFACE I2C I/O 16SOEIAJ onsemi	836	$0.77			Tape & Reel (TR)	Obsolete	8	I²C	No	DAC, POR	Open Drain	-	100 kHz	4.2V ~ 6V	-40°C ~ 85°C	Surface Mount	16-SOIC (0.209", 5.30mm Width)	16-SOEIAJ
	CQ82C55A IC I/O EXPANDER 24B 44MQFP Renesas Electronics America Inc	219	$0.00			Tube	Obsolete	24	Parallel	No	-	Open Drain	2.5mA	-	4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	44-QFP	44-MQFP (10x10)
	CS82C55A-5 IC I/O EXPANDER 24B 44PLCC Renesas Electronics America Inc	525	$0.00			Tube	Obsolete	24	Parallel	No	-	Open Drain	2.5mA	-	4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	44-LCC (J-Lead)	44-PLCC (16.58x16.58)
	MIC74BQS IC I/O EXPANDER I2C 8B 16QSOP Microchip Technology	110	$0.00			Tube	Discontinued at Digi-Key	8	I²C, SMBus	Yes	Fan Speed Controller	Open Drain, Push-Pull	7mA, 10mA	100 kHz	2.7V ~ 3.6V	-40°C ~ 85°C	Surface Mount	16-SSOP (0.154", 3.90mm Width)	16-QSOP
	MIC74BQS-TR IC I/O EXPANDER I2C 8B 16QSOP Microchip Technology	274	$0.00			Tape & Reel (TR)	Discontinued at Digi-Key	8	I²C, SMBus	Yes	Fan Speed Controller	Open Drain, Push-Pull	7mA, 10mA	100 kHz	2.7V ~ 3.6V	-40°C ~ 85°C	Surface Mount	16-SSOP (0.154", 3.90mm Width)	16-QSOP
	CQ82C55A96 IC I/O EXPANDER 24B 44MQFP Renesas Electronics America Inc	536	$0.00			Tape & Reel (TR)	Obsolete	24	Parallel	No	-	Open Drain	2.5mA	-	4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	44-QFP	44-MQFP (10x10)
	CS82C55A-596 IC I/O EXPANDER 24B 44PLCC Renesas Electronics America Inc	430	$0.00			Tape & Reel (TR)	Obsolete	24	Parallel	No	-	Open Drain	2.5mA	-	4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	44-LCC (J-Lead)	44-PLCC (16.58x16.58)
	CS82C55A96 IC I/O EXPANDER 24B 44PLCC Renesas Electronics America Inc	267	$0.00			Tape & Reel (TR)	Obsolete	24	Parallel	No	-	Open Drain	2.5mA	-	4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	44-LCC (J-Lead)	44-PLCC (16.58x16.58)
	IMS82C55AZ96 IC I/O EXPANDER 24B 44PLCC Renesas Electronics America Inc	523	$0.00			Tape & Reel (TR)	Obsolete	24	Parallel	No	-	Open Drain	2.5mA	-	4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	44-LCC (J-Lead)	44-PLCC (16.58x16.58)
	IP82C55A IC I/O EXPANDER 24B 40DIP Renesas Electronics America Inc	251	$0.00			Tube	Obsolete	24	Parallel	No	-	Open Drain	2.5mA	-	4.5V ~ 5.5V	-40°C ~ 85°C	Through Hole	40-DIP (0.600", 15.24mm)	40-PDIP
	IQ82C55A IC I/O EXPANDER 24B 44MQFP Renesas Electronics America Inc	571	$0.00			Tube	Obsolete	24	Parallel	No	-	Open Drain	2.5mA	-	4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	44-QFP	44-MQFP (10x10)
	IQ82C55A96 IC I/O EXPANDER 24B 44MQFP Renesas Electronics America Inc	112	$0.00			Tape & Reel (TR)	Obsolete	24	Parallel	No	-	Open Drain	2.5mA	-	4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	44-QFP	44-MQFP (10x10)
	IQ82C55AZ IC I/O EXPANDER 24B 44MQFP Renesas Electronics America Inc	504	$0.00			Tube	Obsolete	24	Parallel	No	-	Open Drain	2.5mA	-	4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	44-QFP	44-MQFP (10x10)
	IQ82C55AZ96 IC I/O EXPANDER 24B 44MQFP Renesas Electronics America Inc	88	$0.00			Tape & Reel (TR)	Obsolete	24	Parallel	No	-	Open Drain	2.5mA	-	4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	44-QFP	44-MQFP (10x10)
	IS82C55A-5 IC I/O EXPANDER 24B 44PLCC Renesas Electronics America Inc	45	$0.00			Tube	Obsolete	24	Parallel	No	-	Open Drain	2.5mA	-	4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	44-LCC (J-Lead)	44-PLCC (16.58x16.58)
	CP2120-GM IC I/O EXPANDER I2C/SPI 8B 20QFN Silicon Labs	573	$0.00			Tube	Obsolete	8	I²C, SPI	Yes	-	Open Drain, Push-Pull	10mA, 25mA	400 kHz	3V ~ 3.6V	-40°C ~ 85°C	Surface Mount	20-VFQFN Exposed Pad	20-QFN (4x4)
	JLC1562BF IC I/O EXPANDER I2C 8B 16SOEIAJ onsemi	761	$0.40			Tube	Obsolete	8	I²C	No	DAC, POR	Open Drain	-	100 kHz	4.2V ~ 6V	-40°C ~ 85°C	Surface Mount	16-SOIC (0.209", 5.30mm Width)	16-SOEIAJ