Semiconductor integrated circuit

Details Semiconductor integrated circuit Semiconductor integrated circuit

1996-01-03

1998-07-14

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

329546, 329215, G05F 110

Patent

active

057810621

ABSTRACT:
A logic circuit (L.sub.i) is connected between a virtual power supply line (VDDV) connected to an actual power supply (VDD) through a PMOS transistor (Q1) and a virtual grounding line (GNDV) connected to an actual ground (GND) through an NMOS transistor (Q2). During an active period, the transistors (Q1, Q2) are constantly conducting, and the virtual power supply line (VDDV) and virtual grounding line (GNDV) are at the power supply potential (VDD) and ground potential (GND), respectively. During a standby period, the transistors (Q1, Q2) periodically repeat conduction
on-conduction to charge and discharge the virtual power supply line (VDDV) and virtual grounding line (GNDV), suppressing power consumption while preventing loss of information held by the logic circuit (L.sub.i).

REFERENCES:
Denshi Gijutsu, pp. 29-32, Junzo Yamada, et al., "1v Low-Power High-Speed Operation MTCMOS Logical Circuit Technology" Sep. 1994.

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