Initial setup circuit for charging cell plate

Details Initial setup circuit for charging cell plate Initial setup circuit for charging cell plate

1992-10-13

1994-04-19

LaRoche, Eugene R.

Static information storage and retrieval

Read/write circuit

Precharge

36518909, 365226, G11C 700, G11C 514

Patent

active

053052706

ABSTRACT:
A circuit and method for charging the plate electrodes of a plurality of memory cells. The plate electrodes are initially charged by a voltage generator having a large current driving capacity. After the plate electrodes have reached a predetermined threshold voltage, the large-capacity generator is disconnected or deactivated, and the cells are driven by a second, small capacity generator during a standby period. Switches are responsive to a control signal for selectively enabling and disabling the first and second voltage generators. The control unit initially sets the control signal in accordance with the plate electrode voltage level and a clock signal.

REFERENCES:
patent: 4638464 (1987-01-01), Cranford, Jr. et al.
patent: 4775959 (1988-10-01), Sato et al.
patent: 4829482 (1989-05-01), Owen
patent: 5209776 (1993-05-01), Nasu et al.

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