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I/O Expanders

An I/O expander is a semiconductor that has a function to expand the data bus of a CPU and is hardware that connects multiple devices to one port. It is used when expansion is necessary, when there are not enough input/output ports, or when using an interrupt. It enables changing a device address with an external input and installing a specified number of the same ICs. Some I/O expanders have a built-in input address full decode circuit, and some have an interface. Also, the number of I/O channels, clock frequency, maximum supply voltage, minimum supply voltage, etc. vary depending on the device, you need to check them. In addition, output types include push-pull output and open drain output.

Configure

Specification/Dimensions

AC Input current (Maximum)
- Surface Mount
Clear

I/O Number
4

8

16(8出力のみ)

18
Clear

Operating Frequency
400 kHz

Other
Clear

Data Transmission Interface
1線

I2C
Clear

Supply Voltage
1.65V～3.6V

1.71V～5.5V

2V～3.6V

2.8V～5.25V
Clear

Brand	MAXIM (1) ROHM (1)
CAD	2D 3D
Days to Ship	All 5 Day(s) or Less

2 items

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[Maxim Integrated] I/O Expander

MAXIM

Various bulk items of surface mount type. IO expander ICs, open drain, push-pull, etc., output types.

From: ฿ 275.64
Days to Ship: 5 Day(s)

5 Day(s)

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[ROHM] I/O Expander

ROHM

Various packaged products such as 16-Pin VFQFN surface mounting type.　I/O Expander.

From: ฿ 60.74
Days to Ship: 5 Day(s)

5 Day(s)


Brand
Product Series
From
Days to Ship
AC Input current (Maximum)
I/O Number
Operating Frequency
Data Transmission Interface
Supply Voltage

	You can add up to 6 items per a category to the compare list.Compare	You can add up to 6 items per a category to the compare list.Compare
Brand	MAXIM	ROHM
Product Series	[Maxim Integrated] I/O Expander	[ROHM] I/O Expander
From	฿ 275.64	฿ 60.74
Days to Ship	5 Day(s)	5 Day(s)
AC Input current (Maximum)	Surface Mount	Surface Mount
I/O Number	4 ～ 18	8
Operating Frequency	400 kHz ～ Other	400 kHz
Data Transmission Interface	1線～ I2C	I2C
Supply Voltage	1.71V～5.5V ～ 2.8V～5.25V	1.65V～3.6V