That series ULN200? does logic translation too. The darlington only sinks current. The chip is a little hard to understand because of the internal protection diode clamps. To protect the semiconductors with inductive kickback, a diode is placed across the coil in a manner that it will not conduct when the coil is on. When the coil is turned off, the current flows in the opposite direction, through the diode and the coil to prevent damage to the darlingtons.