Precharged data line driver

Details Precharged data line driver Precharged data line driver

1977-07-08

1979-03-13

Fears, Terrell W.

Static information storage and retrieval

Read/write circuit

Precharge

307238, 365189, G11C 1140

Patent

active

041445899

ABSTRACT:
For use in a microprocessor on a single semiconductor chip, circuitry responsive to a timing signal and a data signal for discharging a precharged data line to correspond to the data to be transmitted on the data line. First and second enhancement-type field effect devices are connected in series with the drain of the first device being connected to the data line and the source of the second device being connected to a source voltage. The gate of one of the field effect devices provides an input for the timing signal. The gate of the remaining field effect device provides an input for the data signal. A depletion-type field effect device has its source and gate coupled to the series connection point and its drain connected to a drain voltage source. The depletion-type field effect device prevents a charge redistribution from the data line to the series field effect devices when these devices are not discharging the line.

REFERENCES:
patent: 3760381 (1973-09-01), Yao
patent: 3778782 (1978-02-01), Kitagawa
patent: 4061999 (1977-12-01), Proebsting
patent: 4063118 (1977-12-01), Nishimura

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