Electronic digital logic circuitry – Interface – Logic level shifting
Patent
1996-03-15
1999-04-13
Tokar, Michael J.
Electronic digital logic circuitry
Interface
Logic level shifting
326 27, 326113, H03K 1716, H03K 190175
Patent
active
058942270
ABSTRACT:
A level restore circuit used in MOS logic circuit design provides a voltage swing from a valid low to a valid high logic level in response to an input signal ranging from a degraded voltage high signal to a logic low signal. An input stage receives the degraded logic signal and provides separate gate drive signals to an inverter. An inverter in the intermediate stage receives the separate drive signals and provides an inverted signal output at a valid logic level. The intermediate stage also includes a pull-up device to pull up one of the gate nodes of the inverter to a logic high level. An output stage can optionally be coupled to the inverter to isolate it from a load.
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Roseen Richard
Tokar Michael J.
Translogic Technology, Inc.
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