Control circuit for the adaptation of storage cells in bipolar i

Details Control circuit for the adaptation of storage cells in bipolar i Control circuit for the adaptation of storage cells in bipolar i

1978-07-26

1980-04-29

Fears, Terrell W.

Static information storage and retrieval

Read/write circuit

Differential sensing

307238, 365189, G11C 1140

Patent

active

042009189

ABSTRACT:
A circuit arrangement is disclosed for several storage cells arranged on one bipolar memory block. The storage cells are addressable by bit and word lines. By a write-read control circuit and bit lines information content of the storage cells is changeable. A regulating circuit is provided having an additional simulation storage cell identical to the other storage cells. A reference potential connects to the regulating circuit and regulates the storage cells in accordance with the respective operating mode. This is accomplished by means of a potential impressed onto the write-read control circuit in such fashion that, independent of the manufacturing related variations of the characteristic curves of the current voltage characteristics of the storage cells, a cell current passing through the storage cell when a storage cell is actuated is established at a predetermined value.

REFERENCES:
patent: 3959781 (1976-05-01), Mehta et al.
patent: 4075609 (1978-02-01), Millhollan
"High Speed Bipolar Monolithic Memories" Frequency 29 (1975) 3 pp. 80-87.

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