Static information storage and retrieval – Addressing – Particular decoder or driver circuit
Patent
1998-12-28
2000-03-14
Phan, Trong
Static information storage and retrieval
Addressing
Particular decoder or driver circuit
365203, 36518521, G11C 800, G11C 700, G11C 1606
Patent
active
060381949
ABSTRACT:
A decoder for a memory cell which uses dynamic current to sense the conduction state of a memory cell. The decoder includes a sense circuit that is pre-charged from a voltage source. Upon disconnection of the sense circuit from the voltage source and connection of the memory cell to circuit ground via an access switch, the sense circuit is discharged if the memory cell is conductive and retains its charge if the memory cell is not conductive. The sense circuit outputs a signal indicative of the conduction state of the memory cell in dependence on whether the sense circuit is discharged or not. For low frequency operation, a weak feedback transistor maintains the sense circuit in the charged state after it is initially charged, and after connection to a memory cell if the memory cell is not conductive, to sustain the output signal and counteract the effects of the circuit leakage.
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Phan Trong
Philips Electronics North America Corporation
Wieghaus Brian J.
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