How do you use resistor networks?

[dcjim]

Resistor networks

How do you use something like this?

resistor network

I normally understand a resistor to bridge two points in a circuit. How can resistor networks possibly do this when each resistor only has a single pin? Or if one end is shared if you will (such that all of them might be tied to ground or Vcc) how does that work if you say wanted 8 current limiting resistors between a row of LEDs and the data pins on some kind of IC?

Thanks
Jim

[mistahead]

Ok I am a newbie jumping in here... so usual caveat about hoping someone can confirm what I think/dispel any error I make...

A single restistor usually looks similar to this between two parts of a circuit schematic:
(ComponentA)---\/\/\/\/\---(ComponentB)

Having a look at the associated datasheet for that part:
http://www.farnell.com/datasheets/90452.pdf

The far right diagram in that sheet shows how the network operates - kind of like an IC it has its own "schematic" for what it does - in that case "twelve thick-film resistors are paired in series".

[defaced]

The far right diagram in that sheet shows how the network operates - kind of like an IC it has its own "schematic" for what it does - in that case "twelve thick-film resistors are paired in series".

The far right diagram is only one of the three possible configurations.  

In an instance where you need a small footprint for may individual resistors, the far left schematic would be used.  . 
Often in digital circuits, you need many pull up/down resistors, this setup would use the middle schematic.  For the LED application mentioned, this is the setup you want. Note power dissipation rating and all that fun jazz. 
And lets say you need many of the same voltage dividers, that would be the schematic on the far right.

To ensure you're getting the right part, you need to match the schematic to the relevant part number; see the labels above the schematics on the second page of the datasheet PDF.