What is the best method to create a animation in UIImageView using PNG frames without using much memory

I want to play an animation in my mainView ( Company Logo ) . I am using sequence of PNG images . I have more than 500 frames . What is the best method to create a animation in UI开发者_StackOverflow社区ImageView using PNG frmaes without using much memory......

My animation is a small header logo in this size

GRect frame = CGRectMake(0, 0, 320, 150);

Maybe if you have so many frames, the best thing to do is to convert the animation to a video, and show that one?