Differential precharge circuit

Details Differential precharge circuit Differential precharge circuit

1997-12-08

2000-04-04

Tokar, Michael

Electronic digital logic circuitry

Function of and, or, nand, nor, or not

Field-effect transistor

326112, H03K 190948

Patent

active

060466081

ABSTRACT:
A fast-switching differential precharge circuit is described. This circuit includes a precharging device for placing a first or a second node in a first desired state by providing a connection between that node and a first voltage supply. A second precharging device is also included, which places a second node in a second desired state, which is the logical inverse of the first desired state. Each precharging device includes a state maintaining device and a resetting device. The differential precharge circuit also includes first and second logical networks that are connected to both the first and second nodes and help to maintain the state of a given node. A method for differentially precharging a circuit is also described. The method includes applying a first state to a first node and applying a second state to a second node, such that the second state is the logical inverse of the first state. The second state on the second node is maintained, while a logic device coupled to the first node is reset. This enables the first node to be quickly charged to the second state and maintained in that state during the next input data transition, if so dictated.

REFERENCES:
patent: 4602167 (1986-07-01), Yukawa
patent: 5444396 (1995-08-01), Soneda
patent: 5455528 (1995-10-01), Partovi et al.

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