I/O Expanders

I/O expandersare a type of computer hardware that allows more than one device to connect to a single port on a computer.

How do I/O expanders work?

The expander connects to a single spot, but has multiple connections for other devices. Such expanders offer the advantage of allowing more devices of a particular port type to be used at the same time. This commonly used with USBs and ethernet ports.

Types of I/O expanders

There are two main types of I/O expanders: internal and external.

Internal expanders

These have a connection inside the computer, typically on the motherboard, and the only part the user can see is the expansion plate which houses the ports to which they can connect more devices.

External expanders

An external expander plugs into an existing port introducing multiple new places to connect. When not part of a computer system, these devices are commonly known as splitters.


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Omschrijving Prijs Number of I/O Channels Interface Number of Pins Package Type Clock Frequency Mounting Type Maximum Supply Voltage Minimum Supply Voltage
RS-stocknr. 125-4197
FabrikantnummerCY8C9520A-24PVXI
€ 4,075
Each (In a Pack of 2)
Aantal stuks
20 I2C 28 SSOP 100kHz Surface Mount 5.25 V 3 V
RS-stocknr. 188-5382
FabrikantnummerCY8C9520A-24PVXI
€ 3,342
Each (In a Tube of 47)
Aantal stuks
20 I2C 28 SSOP 24MHz Surface Mount 5.25 V 3 V
RS-stocknr. 193-8488
FabrikantnummerCY8C9560A-24AXI
€ 5,744
Each (In a Tray of 90)
Aantal stuks
60 I2C 100 TQFP 100kHz Surface Mount 5.25 V 3 V
RS-stocknr. 125-4198
FabrikantnummerCY8C9540A-24PVXI
€ 7,39
Each
Aantal stuks
40 I2C 48 SSOP 100kHz Surface Mount 5.25 V 3 V
RS-stocknr. 188-5383
FabrikantnummerCY8C9540A-24PVXI
€ 6,029
Each (In a Tube of 30)
Aantal stuks
40 I2C 48 SSOP 24MHz Surface Mount 5.25 V 3 V
RS-stocknr. 193-8490
FabrikantnummerCY8C9560A-24AXI
€ 7,35
Each
Aantal stuks
60 I2C 100 TQFP 100kHz Surface Mount 5.25 V 3 V