Patent ID: 7233045
Filing Date: 2007-06-19
Classification: H01L,H03K

Abstract:
1. A semiconductor device, comprising: first and second resistance elements for dividing a voltage of a first input signal inputted from an external terminal into a voltage-divided first input signal; first and second capacitors disposed in parallel to said first resistance element; an input circuit for receiving said voltage-divided first input signal thereby forming an output signal having a smaller amplitude than that of said input signal; an internal circuit for receiving said output signal from said input circuit; and an ESD circuit for preventing electrostatic destruction, said ESD circuit being coupled in series at one end to the external terminal, and at the other end to the first resistance element and the first and the second capacitors which are disposed in parallel, wherein the first input signal has an AC component which is transmitted to the input circuit via the first and second capacitors, and each of said input circuit and said internal circuit comprises MOSFETs.