Thelen Reid & Priest, L.L.P.
Semiconductor device for automatically detecting external interface voltage
 A semiconductor device for automatically detecting an external interface voltage is disclosed, including a voltage converter for receiving an external interface voltage, and decreasing the external interface voltage value, and a voltage comparator for comparing the voltage outputted from the voltage converter with the internal supply voltage of a semiconductor chip. The semiconductor device automatically detects an external interface voltage environment where the semiconductor chip is used, and also automatically controls the magnitude of output buffer of the semiconductor chip according to the detected external interface voltage value, to prevent the operation speed from being deterioration. 
Hyundai Electronics Industries Co., Ltd.
H H
H03K H03K
inventional inventional
Jung Pill Joon Ho
Kim Kim