Semiconductor integrated circuit device
AssigneeHitachi, Ltd.
InventorsYoshiyuki UTAGAWA, Takeo Yamashita
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Abstract
A semiconductor integrated circuit device supports maintenance of a signal transfer frequency and waveform quality and electrostatic protection, and also suppresses expansion of a chip area. In order to maintain the signal transfer frequency and the waveform quality as well as to keep an effect of the electrostatic protection, and simultaneously to protect a differential input pair by a single electrostatic protection element and to attain area superiority, the electrostatic protection element that is arbitrarily separable is disposed at a middle point of a terminator.
Claims19
A semiconductor integrated circuit device, comprising:
- a protection object circuit that has a differential input pair and becomes an object of electrostatic protection relating to the electrostatic noise originating in at least either input of the differential input pair;
- and
- an electrostatic protection element that protects the protection object circuit from the electrostatic noise,
- wherein the protection element is configured to be connected to a middle point of a terminator that connects one and the other inputs of the differential input pair.
Dependencies are inferred from the claim text.