| 摘要 |
The invention relates to the field of rapid switching input-output couplers for high rate data transfer buses. The input-output coupler of an integrated circuit enables signals to be exchanged with identical couplers disposed in other integrated circuits by means of a bus line (51). Such a coupler comprises a transmitter (6) and a receiver (7) connected to a line (51) by a first conductor (5). The transmitter (6) comprises a first switch (63) whose on condition puts the first conductor (5) at a potential Vb. The coupler comprises additionally a second switch (64) or (65) whose on condition switches the first conductor (5) to a potential Vtt and arranged such that the switching on of the second switch is only possible after the switching off of the first switch (63). Accordingly, rapid switching on of the second switch (64) or (65), enables rapid variations to be obtained between two discrete states of potential Vb and Vtt of the electrical conductor connecting the transmitter to the bus line, with high stability in each of these two states.
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