Sensing circuit unit for a dynamic circuit

Details Sensing circuit unit for a dynamic circuit Sensing circuit unit for a dynamic circuit

1993-08-16

1996-09-24

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

327 56, 365205, 365207, 365203, H03F 345

Patent

active

055594565

ABSTRACT:
In the present invention, there are disposed (i) a P-channel MOSFET for detecting variations of the voltage level of a data line to supply an electric current, and (ii) a current mirror circuit to which an electric current from the P-channel MOSFET is entered as a reference current and of which output current terminal is connected to the data line. When the data line is lowered in voltage level so that an electric current flows from the P-channel MOSFET to the current mirror circuit, an output current of the current mirror circuit flows to the drain of an N-channel MOSFET, so that the data line is electrically discharged. Thus, there is achieved a sensing circuit unit which is suitably used for a dynamic circuit and which can detect, at a high speed, variations of the voltage level of the data line as precharged.

REFERENCES:
patent: Re34060 (1992-09-01), Tanimura et al.
patent: 4367540 (1983-01-01), Shimohigashi
patent: 4763026 (1988-08-01), Tsen et al.
patent: 4932002 (1990-06-01), Honston
patent: 5206552 (1993-04-01), Iwashita
patent: 5260899 (1993-11-01), Yasuda et al.
patent: 5325335 (1994-06-01), Ang et al.

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