Semiconductor memory cell farming a ROM cell from a RAM cell

Details Semiconductor memory cell farming a ROM cell from a RAM cell Semiconductor memory cell farming a ROM cell from a RAM cell

1991-05-30

1994-05-10

Ham, Seungsook

Static information storage and retrieval

Systems using particular element

Flip-flop

365226, G11C 1140

Patent

active

053114647

ABSTRACT:
The present invention relates to a semiconductor memory cell. The memory cell comprises a word line, a pair of bit lines crossing the word line, a resistance having a first side connected to a high power source and a second side connected to a first connecting node, a first FET connected between the first connecting node and a low power source and having a gate connected to a second connecting node, a second FET connected between the second connecting node and the low power source and having a gate connected to the first connecting node, a third FET connected between the first connecting node and one of the pair of bit lines and having a gate connected to the word line to control the operation of the third FET by changing the potential of the word line, and a fourth FET connected between the second connecting node and the other of the pair of bit lines and having a gate connected to the word line to control the operation of the fourth FET by changing the potential of the word line.

REFERENCES:
patent: 4095281 (1978-06-01), Denes
patent: 4132904 (1979-01-01), Harari
patent: 4618943 (1986-10-01), Arpperspach et al.
patent: 4939691 (1990-07-01), Mizukami et al.
patent: 5051952 (1991-09-01), Gotou

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