I/O interface driving circuit capable of automatically controlling noise
An interface drive and noise technology, applied in the direction of logic circuit connection/interface layout, etc., can solve the problem of insufficient noise suppression capability, and achieve the effect of improving noise suppression capability and preventing output signal voltage overshoot.
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[0032] The specific implementation manner of the present invention will be described in more detail below with reference to schematic diagrams. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.
[0033] The present invention provides a kind of I / O interface drive circuit of automatic noise control, such as figure 2 As shown, it includes: an N-type transistor output driving circuit and a P-type transistor output driving circuit, wherein the N-type transistor output driving circuit includes: a first N-type transistor N1, a second N-type transistor N2, a third N-type transistor N3 and the fourth N-type transistor N4, the width-to-length ratio of the first N-type transistor N1 and the second N-type transist...
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