Depends how you are controlling it.If you desire to sink/source current from all segments at the same time, then a resistor is needed on each segment pin.If you will only sink/source current from 1 segment at a time, then only a single resistor is needed on the common pin.1K might be on the dim side.270 would ne brighter, allowing ~10mA to flow (depends on LED color).
Then put a resistor on each segment.Keep pins 0, 1 free for serial downloads if you can.
but what do u mean by serial downloads ?
i mean is it same
Quotei mean is it same It is not the same 1K will let too little current through 150R is about as low as you can go and might exceed the group pin current limits. I would go with 220R to 330R.