Read only memory device with recharging transistor automatically

Details Read only memory device with recharging transistor automatically Read only memory device with recharging transistor automatically

1992-06-22

1993-12-28

LaRoche, Eugene R.

Static information storage and retrieval

Read/write circuit

36518909, 365203, G11C 700, G11C 1140

Patent

active

052745902

ABSTRACT:
A read only memory device memorizes data bits by selectively providing current paths of n-channel enhancement type memory transistors between digit lines and a ground voltage line, and one of the digit lines is coupled through an n-channel enhancement type transfer transistor of a column selector unit with a drain node of a charging transistor responsive to a control signal, wherein the charging transistor is implemented by an n-channel enhancement type field effect transistor so that the drain node thereof is balanced with the selected digit line upon completion of a precharging phase, thereby preventing an output inverting circuit coupled therewith from malfunction due to noise on the selected digit line.

REFERENCES:
patent: 4843594 (1989-06-01), Tanaka et al.
patent: 5001668 (1991-03-01), Ito et al.

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