The Schottky diodes prevent undershoot signals from dropping below a specified level, reducing the possibility of damage to connected devices by large undershoots that can occur without the Schottky diodes.

• 肖特基二极管防止负过冲信号跌进规定的电平以下，减少接在没有肖特基二极管时过大的负过冲电压的器件所可能造成的损害。