功能敘述 (features)
　　◇內建振蕩(built-in osc)
　　◇直接5燈驅動(direct drive 5-led)
　　◇直接驅動蜂鳴片和喇叭(direct drive buzzer and speaker)
 產品應用 (application)
　　玩具及鑰匙鏈等(toys and key chains etc.)